Figure 16-28 Problem 50 50. • CE Heat is transferred from an area where the temperature is 20 °C to an area where the temperature is 0 °C through a composite slab consisting of four different materials, each with the same thickness. The temperatures at the interface between each of the materials are given in Figure 16-28 . Rank the four materials in order of increasing thermal conductivity. Indicate ties where appropriate.
Figure 16-28 Problem 50 50. • CE Heat is transferred from an area where the temperature is 20 °C to an area where the temperature is 0 °C through a composite slab consisting of four different materials, each with the same thickness. The temperatures at the interface between each of the materials are given in Figure 16-28 . Rank the four materials in order of increasing thermal conductivity. Indicate ties where appropriate.
50. • CE Heat is transferred from an area where the temperature is 20 °C to an area where the temperature is 0 °C through a composite slab consisting of four different materials, each with the same thickness. The temperatures at the interface between each of the materials are given in Figure 16-28. Rank the four materials in order of increasing thermal conductivity. Indicate ties where appropriate.
4. How much energy must be transferred as heat to cause the quasi-static isothermal
expansion of one mole of an ideal gas at 300 K from PA = 1 bar to PB = 0.5 bar?
A. What is VA?
B. What is VB?
C. What is AU for the process?
D. What is AH for the process?
E. What is AS for the process?
1. The diagram shows the tube used in the Thomson
experiment.
a. State the KE of the electrons.
b. Draw the path of the electron beam in the gravitational
field of the earth.
C.
If the electric field directed upwards, deduce the direction of the magnetic field so it
would be possible to balance the forces.
electron gun
1KV
as a hiker in glacier national park, you need to keep the bears from getting at your food supply. You find a campground that is near an outcropping of ice. Part of the outcropping forms a feta=51.5* slopeup that leads to a verticle cliff. You decide that this is an idea place to hang your food supply out of bear reach. You put all of your food into a burlap sack, tie a rope to the sack, and then tie a bag full of rocks to the other end of the rope to act as an anchor. You currently have 18.5 kg of food left for the rest of your trip, so you put 18.5 kg of rocks in the anchor bag to balance it out. what happens when you lower the food bag over the edge and let go of the anchor bag? Determine the acceleration magnitude a of the two-bag system when you let go of the anchor bag?
Chapter 16 Solutions
Modified Mastering Physics with Pearson eText -- Access Card -- for Physics (18-Weeks)
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