qu.1.topic=<strong>Ch 15</strong>, <font size="-1"><b>Sec 1</b></font> - Density@

qu.1.1.mode=Randomized Formula@
qu.1.1.editing=useHTML@
qu.1.1.name=Density of Fluid@
qu.1.1.question=The mass of an empty $volume-gallon container is $m_container kg.  The mass of the same container filled with unknown fluid is $m_total kg.  What is the density of the fluid? (Give the answer is SI units).@
qu.1.1.answer=$ans kg/m^3 (1 ? 0.05)@
qu.1.1.random=
		$volume\=rand(5,10,3);
		$m_container\=rand(2,3.5,3);
		$k\=rand(6.5,8.55,3);
		$m_total\=sig(3,$m_container*(1+$k));
		$volume_SI\=0.003785*$volume;
		$ans\=sig(3,($m_total-$m_container)/$volume_SI)@

qu.2.topic=<strong>Ch 15</strong>, <font size="-1"><b>Sec 2</b></font> - Pressure@

qu.2.1.mode=Randomized Formula@
qu.2.1.editing=useHTML@
qu.2.1.name=Hollow Shell@
qu.2.1.question=Calculate the force exerted on a hollow shell of radius <i>r</i> = $r m by atmospheric pressure.@
qu.2.1.answer=$ans N (1 ? 0.05)@
qu.2.1.random=
		$r\=rand(0.05,.2,3);
		$ans\=sig(3,1.01*10^5*4*3.14*$r^2)@

qu.3.topic=<strong>Ch 15</strong>, <font size="-1"><b>Sec 3</b></font> - Static Equilibrium in Fluids:  Pressure and Depth@

qu.3.1.mode=Randomized Formula@
qu.3.1.editing=useHTmL@
qu.3.1.name=Pressure at Bottom@
qu.3.1.question=A fluid occupies a cylindrical container of height <i>h</i> = $h cm.  What is the gauge pressure at the bottom of the container if the density of the fluid is $rho kg/m<sup>3</suP>?@
qu.3.1.answer= $ans Pa (1 ? 0.05)@
qu.3.1.random=
		$h\=rand(10,30,3);
		$h1\=$h/100;
		$rho\=rand(800,1500,3);
		$ans\=sig(3,$rho*9.81*$h1)@

qu.4.topic=<strong>Ch 15</strong>, <font size="-1"><b>Sec 4</b></font> - Archimedes’ Principle and Buoyancy@

qu.4.1.mode=Randomized Formula@
qu.4.1.editing=useHTML@
qu.4.1.name=Submerged Hollow Cube@
qu.4.1.question=A hollow cube floats in an unknown fluid with $percent% of its volume submerged.  What force would you have to apply to the cube in order to fully submerge it into this fluid if the density of the fluid is <font face=symbol>r</font> = $rho kg/m<sup>3</sup> and the side of the cube is equal $l m.@
qu.4.1.answer=$ans N (1 ? 0.05)@
qu.4.1.random=
		$percent\=rand(10,35,3);
		$rho\=rand(800,1500,3);
		$l\=rand(0.5,3,3);
		$ans\=sig(3,$l^3*$rho*9.8*(100-$percent)/100)@

qu.5.topic=<strong>Ch 15</strong>, <font size="-1"><b>Sec 5</b></font> - Applications of Archimedes’ Principle and Buoyancy@

qu.5.1.mode=Randomized Formula@
qu.5.1.editing=useHTML@
qu.5.1.name=Floating Sphere@
qu.5.1.question=Find the density of a solid sphere if it floats in water with $percent% of its volume submerged. Give 2 significant figures@
qu.5.1.answer=$ans kg/m^3 (1 ? 0.05)@
qu.5.1.random=
		$percent\=rand(25,85,2);
		$ans\=sig(3,1000*$percent/100)@

qu.6.topic=<strong>Ch 15</strong>, <font size="-1"><b>Sec 6</b></font> - Fluid Flow and Continuity@

qu.6.1.mode=Randomized Formula@
qu.6.1.editing=useHTML@
qu.6.1.name=Flowing Fluid@
qu.6.1.question=A colored fluid flows through a round hose of radius <i>r</i> = $r cm with a speed of $v0 m/s.  At some point the fluid enters a tube of a smaller radius and its speed increases by $v_plus m/s.  What is the radius of the smaller tube?  Give your answer in SI units.
<p align=center>
<img src="http://physics.unl.edu/directory/lee/edu/physics/graphics/ch15/sec6/qu1-1.gif">
</p>@
qu.6.1.answer=$ans m (1 ? 0.05)@
qu.6.1.random=
		$r\=rand(2,7,3);
		$v0\=rand(0.9,2,3);
		$v_plus\=rand(0.3,1.3,3);
		$r_si\=$r/100;
		$A2\=3.142*$r_si^2*$v0/($v0+$v_plus);
		$ans\=sig(3,($A2/3.142)^0.5)@