[LON-CAPA-users] can students reset their submissions?
Jon Hall
lon-capa-users@mail.lon-capa.org
Fri, 6 Jan 2006 19:45:26 -0500
--Apple-Mail-1--626263181
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
charset=US-ASCII;
delsp=yes;
format=flowed
i have written a few LON-CAPA based labs for my high school physics
classes. the students enter the data they collected in the
experiments, then they enter any values that they calculated, which
the LON-CAPA then grades for accuracy.
occasionally, a student will type in a wrong value for some of the
data they collected. this, of course, means that their actual
calculated results will not match the values which LON-CAPA is
expecting.
when this happens, they can either re-run their calculations based on
the meaningless value they accidently typed in to the LON-CAPA, or i
have to go back and re-set the entire problem.
my question for the list is...is there a way that i can add some sort
of "Reset Submissions" button so a student can make their own
corrections to any typo they have made?
thanks in advance for any help.
(code for a fairly simple example lab problem is posted below - i
call this the "William Tell" Lab)
<problem>
<script type="loncapa/perl">
$height=&EXT('user.resource.resource.11.12.submission');
$cup=&EXT('user.resource.resource.13.14.submission');
$cannon=&EXT('user.resource.resource.15.16.submission');
$v=&EXT('user.resource.resource.19.20.submission');
$status11=&EXT('user.resource.resource.11.solved');
$status13=&EXT('user.resource.resource.13.solved');
$status15=&EXT('user.resource.resource.15.solved');
$status17=&EXT('user.resource.resource.17.solved');
$status19=&EXT('user.resource.resource.19.solved');
$status21=&EXT('user.resource.resource.21.solved');
$status23=&EXT('user.resource.resource.23.solved');
if (!$height or !$cup or !$cannon)
{
$y='UNANSWERABLE';
}
else
{
$y=$height+$cup-$cannon;
}
if (!$y or !$v)
{
$theta='UNANSWERABLE';
$x='UNANSWERABLE';
}
else
{
$theta=$rad2deg*&asin((&sqrt(2*9.81*$y))/$v);
$x=(&pow($v,2)*&sin(2*$theta*$deg2rad))/(2*9.81);
}
if ($power_1 and $power_2 and $power_3)
{
$power=($power_1+$power_2+$power_3)/3;
}
</script>
<startouttext />
<h2>William Tell Lab</h2>
<p />
<img src="william_tell.png" />
<p />
<endouttext />
<block condition="$status11!~/^correct/">
<part id="11">
<startouttext />
Enter your height:<endouttext />
<numericalresponse format="0f" answer="1.5" id="12">
<responseparam name="tol" default="100%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
</numericalresponse>
<startouttext /><b>m</b><endouttext />
</part>
</block>
<block condition="$status11=~/^correct/ & $status13!~/^correct/">
<part id="13">
<startouttext />
Your height is <b>&format($height,'2f') m</b>.<p />Enter the height
of the cup:<endouttext />
<numericalresponse format="2f" answer=".1" id="14">
<responseparam name="tol" default="100%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
</numericalresponse>
<startouttext /><b>m</b><endouttext />
</part>
</block>
<block condition="$status13=~/^correct/ & $status15!~/^correct/">
<part id="15">
<startouttext />
Your height is <b>&format($height,'2f') m</b> and the cup is
<b>&format($cup,'2f') m</b> tall.<p />Enter the height of the cannon:
<endouttext />
<numericalresponse format="2f" answer="1" id="16">
<responseparam name="tol" default="100%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
<startouttext /><b>m</b><endouttext />
</numericalresponse>
</part>
</block>
<block condition="$status15=~/^correct/ & $status17!~/^correct/">
<part id="17">
<startouttext />
Your height is <b>&format($height,'2f') m</b>, the cup is <b>&format
($cup,'2f') m</b>, and the cannon is <b>&format($cannon,'2f') m</b>
high.<p />What is the necessary Δ<i>y</i> for the projectile in
order to knock the cup from your head?
<endouttext />
<numericalresponse format="2f" answer="$y" id="18">
<responseparam name="tol" default="3%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
<startouttext /><b>m</b><endouttext />
</numericalresponse>
</part>
</block>
<block condition="$status17=~/^correct/ & $status19!~/^correct/">
<part id="19">
<startouttext />
The Δ<i>y</i> necessary to strike the cup is <b>&format
($y,'2f') m</b>.<p />Enter the launch speed of the projectile:
<endouttext />
<numericalresponse format="1f" answer="9.5" id="20">
<responseparam name="tol" default="100%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
<startouttext /><b>m/s</b><endouttext />
</numericalresponse>
</part>
</block>
<block condition="$status19=~/^correct/ & $status21!~/^correct/">
<part id="21">
<startouttext />
The Δ<i>y</i> necessary to strike the cup is <b>&format
($y,'2f') m</b> and the launch speed of the projectile is <b>&format
($v,'2f') m/s</b>.<p />Calculate the angle for launching the
projectile so it strikes the cup.
<endouttext />
<numericalresponse format="2f" answer="$theta" id="22">
<responseparam name="tol" default="1%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
<startouttext /><b>deg</b><endouttext />
</numericalresponse>
</part>
</block>
<block condition="$status21=~/^correct/">
<part id="23">
<startouttext />
The Δ<i>y</i> necessary to strike the cup is <b>&format
($y,'2f') m</b>, the launch speed of the projectile is <b>&format
($v,'2f') m/s</b>, and the angle of launch is <b>&format($theta,'2f')
deg</b>.<p />Calculate the Δ<i>x</i> where to stand.
<endouttext />
<numericalresponse format="2f" answer="$x" id="24">
<responseparam name="tol" default="1%" type="tolerance"
description="Numerical Tolerance" />
<responseparam name="sig" type="int_range" default="1,5"
description="Significant Digits" />
<textline readonly="no" size="5" />
<startouttext /><b>m</b><endouttext />
</numericalresponse>
</part>
</block>
<allow src="/res/spx/jon/labs/william_tell/william_tell.png" />
</problem>
--Apple-Mail-1--626263181
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=ISO-8859-1
<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">i have written a few LON-CAPA =
based labs for my high school physics classes.=A0 the students enter the =
data they collected in the experiments, then they enter any values that =
they calculated, which the LON-CAPA then grades for accuracy.<DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>occasionally, a student =
will type in a wrong value for some of the data they collected.=A0 this, =
of course, means that their actual calculated results will not match the =
values which LON-CAPA is expecting.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>when this happens, they can =
either re-run their calculations based on the meaningless value they =
accidently typed in to the LON-CAPA, or i have to go back and re-set the =
entire problem.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>my question for the list =
is...is there a way that i can add some sort of "Reset Submissions" =
button so a student can make their own corrections to any typo they have =
made?</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV>thanks =
in advance for any help.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>(code for a fairly simple =
example lab problem is posted below - i call this the "William Tell" =
Lab)</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"><problem></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: =
normal normal normal 12px/normal Helvetica; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><script type=3D"loncapa/perl"></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$height=3D&EXT('user.resource.resource.11.12.submis=
sion');</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$cup=3D&EXT('user.resource.resource.13.14.submissio=
n');</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$cannon=3D&EXT('user.resource.resource.15.16.submis=
sion');</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$v=3D&EXT('user.resource.resource.19.20.submission'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status11=3D&EXT('user.resource.resource.11.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status13=3D&EXT('user.resource.resource.13.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status15=3D&EXT('user.resource.resource.15.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status17=3D&EXT('user.resource.resource.17.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status19=3D&EXT('user.resource.resource.19.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status21=3D&EXT('user.resource.resource.21.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$status23=3D&EXT('user.resource.resource.23.solved'=
);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; font: normal normal normal =
12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" face=3D"Helvetica">if=
(!$height or !$cup or !$cannon)</FONT><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">=A0</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">{</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$y=3D'UNANSWERABLE';</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">}</FONT><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">=A0</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">else</FONT><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">=A0</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">{</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica">$y=3D$height+$cup-$cannon;</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">}</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal =
normal normal 12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" face=3D"Helvetica">if=
(!$y or !$v)</FONT><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">=A0</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">{</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$theta=3D'UNANSWERABLE';</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$x=3D'UNANSWERABLE';</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">}</FONT><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">=A0</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">else</FONT><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">=A0</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">{</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica">$theta=3D$rad2deg*&asin((&sqrt(2*9.81*$y))/$v);=
</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">$x=3D(&pow($v,2)*&sin(2*$theta*$deg2rad))/(2*9.=
81);</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">}</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal =
normal normal 12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" face=3D"Helvetica">if=
($power_1 and $power_2 and $power_3)</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">{</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica">$power=3D($power_1+$power_2+$power_3)/3;</FONT></DIV><D=
IV style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">}</FONT><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">=A0</FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal =
normal normal 12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></script></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: =
normal normal normal 12px/normal Helvetica; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><startouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><h2>William Tell =
Lab</h2></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><p =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><img src=3D"william_tell.png" =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><p /></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><endouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; font: normal normal normal =
12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><block =
condition=3D"$status11!~/^correct/"></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><part id=3D"11"></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><startouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">Enter your height:<endouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"0f" answer=3D"1.5" =
id=3D"12"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"100%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><startouttext =
/><b>m</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"></block></FONT><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">=A0</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 12px/normal Helvetica; =
min-height: 14px; "><BR></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><block =
condition=3D"$status11=3D~/^correct/ & =
$status13!~/^correct/"></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><part =
id=3D"13"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">Your height is <b>&format($height,'2f') =
m</b>.<p />Enter the height of the cup:<endouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"2f" answer=3D".1" =
id=3D"14"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"100%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><startouttext =
/><b>m</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"></block></FONT><FONT =
class=3D"Apple-style-span" face=3D"Helvetica">=A0</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 12px/normal Helvetica; =
min-height: 14px; "><BR></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><block =
condition=3D"$status13=3D~/^correct/ & =
$status15!~/^correct/"></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><part =
id=3D"15"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">Your height is <b>&format($height,'2f') =
m</b> and the cup is <b>&format($cup,'2f') m</b> =
tall.<p />Enter the height of the cannon:</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"2f" answer=3D"1" =
id=3D"16"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"100%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/><b>m</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></block></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: =
normal normal normal 12px/normal Helvetica; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><block condition=3D"$status15=3D~/^correct/ & =
$status17!~/^correct/"></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><part =
id=3D"17"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">Your height is <b>&format($height,'2f') =
m</b>, the cup is <b>&format($cup,'2f') m</b>, and =
the cannon is <b>&format($cannon,'2f') m</b> high.<p =
/>What is the necessary &Delta;<i>y</i> for the =
projectile in order to knock the cup from your head?</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"2f" answer=3D"$y" =
id=3D"18"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"3%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/><b>m</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></block></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: =
normal normal normal 12px/normal Helvetica; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><block condition=3D"$status17=3D~/^correct/ & =
$status19!~/^correct/"></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><part =
id=3D"19"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">The &Delta;<i>y</i> necessary to =
strike the cup is <b>&format($y,'2f') m</b>.<p =
/>Enter the launch speed of the projectile:</FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"1f" answer=3D"9.5" =
id=3D"20"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"100%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/><b>m/s</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></block></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: =
normal normal normal 12px/normal Helvetica; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><block condition=3D"$status19=3D~/^correct/ & =
$status21!~/^correct/"></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><part =
id=3D"21"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">The &Delta;<i>y</i> necessary to =
strike the cup is <b>&format($y,'2f') m</b> and the =
launch speed of the projectile is <b>&format($v,'2f') =
m/s</b>.<p />Calculate the angle for launching the =
projectile so it strikes the cup.</FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><endouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"2f" answer=3D"$theta" =
id=3D"22"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"1%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/><b>deg</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></block></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: =
normal normal normal 12px/normal Helvetica; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><block =
condition=3D"$status21=3D~/^correct/"></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><part id=3D"23"></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><startouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica">The &Delta;<i>y</i> necessary to =
strike the cup is <b>&format($y,'2f') m</b>, the launch =
speed of the projectile is <b>&format($v,'2f') m/s</b>, =
and the angle of launch is <b>&format($theta,'2f') =
deg</b>.<p />Calculate the &Delta;<i>x</i> =
where to stand.</FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><endouttext =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"><numericalresponse format=3D"2f" answer=3D"$x" =
id=3D"24"></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"tol" default=3D"1%" type=3D"tolerance" description=3D"Numerical =
Tolerance" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><responseparam =
name=3D"sig" type=3D"int_range" default=3D"1,5" description=3D"Significant=
Digits" /></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><textline readonly=3D"no"=
size=3D"5" /></FONT></DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><startouttext =
/><b>m</b><endouttext /></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></numericalresponse></FONT></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></part></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" =
face=3D"Helvetica"></block></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Helvetica"><allow =
src=3D"/res/spx/jon/labs/william_tell/william_tell.png" =
/></FONT></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><FONT class=3D"Apple-style-span" =
face=3D"Helvetica"></problem></FONT></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><BR =
class=3D"khtml-block-placeholder"></DIV></BODY></HTML>=
--Apple-Mail-1--626263181--