course Phy 232
Assignment 5Ch. 14 Problems 45, 48, 51, and 56
45:
Torque= dL/dt
I don’t know what to do with the Torque.
48:
a. Show that C=3M/pi R^2L^3
P=m/v and V=L
The area of a cylinder is piR^2 Therefor 3M/piR^2L^#
b. Show that average density is 1/3 of the density at the X=L end
51.
A. What is the gauge pressure at the water-mercury interface?
P=po+pgh
=(1.01x10^5Pa)+(1.00x10^3)(1000)(15.0)
=1.5x10^7
P-Po=1.5x10^7-1.01x10^5=1.5x10^7
B. Caluculate vertical distance “h” from top of mercury to the top of water.
Rhox gx yl= rho x g x y^2
(1x10^3)(9.8x1.5)=(13.6)(10^3)(9.8)y^2
Y^2= 0.011
56.
B.
no, it should stay around the same because the density of the ice cube is less than water so when it melts it should just blind with the water already in the container.
C.
A=pfluid gV
420cm^3= 1050kg/m^3(9.70g)V
V= 0.041
"
Please insert a few more lines to clarify what all the given quantities mean in terms of the situation, and their units. Also be sure the goal of every problem is either obvious from your work, or is clearly stated. If you don't understand how to solve a problem, at least discuss what you do and do not understand about the problem and the given information.