Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 12.1, Problem 2aT
(1)
To determine
The force to determine the pressure at the bottom of layer2.
(2)
To determine
The area needed to determine the pressure at the bottom of layer 2.
(3)
To determine
The object for which free-body diagram would be required to be drawn.
The area and force in order to determine the pressure at the centre of the layer 2.
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The cylinder in (Figure 1) is divided into two compartments by a frictionless piston that can slide
back and forth. Assume the piston is in equilibrium.
Figure
80°C
Piston
20°C
1 of 1 >
Part A
Is the pressure on the left side greater than, less than, or equal to the pressure on the right? Explain.
Match the words in the left column to the appropriate blanks in the sentences on the right.
greater than
less than
the pressure is higher at the
higher temperature
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equal to
the separated gases tend to
occupy the same volume
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equal forces act on the piston
from the left and from the
right
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The pressure on the left side is
the pressure on the right side because
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Suppose you have two identical objects, A and B, in thermal contact with
one another. Model each as having 25 “bins" for thermal energy. At the
start, A has 7 "packets" of thermal energy and B has three as shown
schematically in the figure at the right. Assume that only one packet of
energy can go in each bin and that the energy packets are
indistinguishable.
Do
1. How many microstates are there for A initially? For B?
2. If two "packets" of thermal energy move from A to B, find the changes
of entropy, ASA, ASB, and Stotal as a multiple of KB.
3. Discuss how your result for 2 is consistent with the movement of this
thermal energy being spontaneous.
A
О
B
= packet of energy
= degree of freedom
(place to put energy)
PLEASE WRITE CLEARLY AND CIRCLE ANSWERS SO I KNOW WHICH ONE IS WHICH
Chapter 12 Solutions
Tutorials in Introductory Physics
Ch. 12.1 - For each layer, draw a free-body diagram in the...Ch. 12.1 - Imagine that a small hole is opened in the...Ch. 12.1 - Prob. 2aTCh. 12.1 - Suppose you wanted to determine the pressure at...Ch. 12.1 - Prob. 2cTCh. 12.1 - Prob. 2dTCh. 12.1 - Draw a freebody diagram for the small voulme of...Ch. 12.1 - Prob. 3bTCh. 12.1 - Use your answer to part B to compare the pressures...Ch. 12.1 - Prob. 3dT
Ch. 12.1 - Consider the following student dialogue: Student...Ch. 12.1 - Prob. 4aTCh. 12.1 - The right end of the tube is now scaled with a...Ch. 12.1 - A syringe is used to remove some water from the...Ch. 12.2 - A cubical block is observed to float in a beaker...Ch. 12.2 - Prob. 1bTCh. 12.2 - Imagine that you were to release the block from...Ch. 12.2 - In general, does the buoyant force on an object...Ch. 12.2 - By how much does the volume reading increase when...Ch. 12.2 - Does the volume of water displaced by a completely...Ch. 12.2 - Consider the following statement made by a...Ch. 12.2 - A rectangular block, A, is released from rest at...Ch. 12.2 - A second block, B,of the same size and shape as A...Ch. 12.2 - A third block, C, of the same size and shape as A...
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- How would you solve part c? This is my extra practice, non graded homework assignment.arrow_forwardA large tank has a tube coming out of it like a straw, as shown in the picture below. The tube of water is entirely full and closed at the end on the right, while the tank is open to the air. Rank the pressures at points N, U, C, L, E, A, and R (using <, >, and =). Explain your reasoning. How does the pressure at point R compare with the atmospheric pressure immediately outside of the straw? Explain your reasoning. Describe what would happen if you held the right end of the straw (near point R) in place and poked a hole in the end of it. (This is how a siphon works.) Explain your reasoning. (A video of you doing this experiment yourself could be submitted as evidence of your reasoning.)arrow_forwardCan you please do 1,2,5,7 and 8. Thank youarrow_forward
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- Please show all work and answer parts a,b and c. Circle your answersarrow_forwardDetermine the absolute pressure two meters 3 underneath a 1200 kg/m³ density fluid under normal earth gravity and atmosphere. Use atmospheric pressure of 101 kPa. Show your work below, then use the simulation (under the "Pressure" tab) to get an experimental Calculate experimental error. value. a. Calculated Pressure (Theoretical) b. Simulated Pressure (Experimental) c. Experimental Error A fluid of density 1200 kg/m³ flows out through a 2 meter diameter pipe without friction at a rate of 3000 L/s. Find the velocity of the fluid as it flows out of the pipe, and the velocity of the fluid if the pipe constricts to a diameter of 1 meter. Then calculate the change in pressure (in the middle of the pipe) between the 2 meter and 1 meter diameter. Using the simulation (under the "Flow" tab) determine experimental values for each of these velocities/change in pressures and calculate experimental error. Show your work. a. Calculated initial velocity b. Experimental initial velocity c.…arrow_forwardHi Staffs, Why is pressure a function of depth not volume? Please provide a real-world example that normally a student can relate to. It makes sense to me mathematically that the units match in the pressure formula P = pgh. My thoughts: If I think of the pressure difference between the bottom of the Pacific Ocean (let's say exactly 4km deep and let's say exactly 15000km wide) and an open cylinder with a width of 50cm and a depth just 1cm deeper than the bottom of the Pacific Ocean floor, I do not see how the pressure at the bottom of the cylinder is greater. Take carearrow_forward
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