Sears And Zemansky's University Physics With Modern Physics
13th Edition
ISBN: 9780321897961
Author: YOUNG, Hugh D./
Publisher: Pearson College Div
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Question
Chapter 20, Problem 1DQ
To determine
Whether the evaporation of water in tight seal pot and its condensation back to water is reversible or not.
Expert Solution & Answer
Answer to Problem 1DQ
Evaporation of water in tight seal pot and its condensation back to water is reversible process.
Explanation of Solution
Reversible process is the
When water is heated it evaporate into vapor and the vapor at low temperature condenses back to water itself. The process is reversible. Any process that can be reversed back final state to initial state under the same circumstance is a reversible process
Here vapor can be condensed back to water by liberating same amount of heat absorbed to the surrounding. Giving same amount of heat again will form vapor again.
Conclusion: Evaporation of water in tight seal pot and its condensation back to water is a reversible process.
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Figure 27-65 Problem 63.
Thor flies by spinning his hammer really fast from a leather strap at the end of the handle, letting go, then grabbing it and having it pull him. If Thor wants to reach escape velocity (velocity needed to leave Earth’s atmosphere), he will need the linear velocity of the center of mass of the hammer to be 11,200 m/s. Thor's escape velocity is 33532.9 rad/s, the angular velocity is 8055.5 rad/s^2. While the hammer is spinning at its maximum speed what impossibly large tension does the leather strap, which the hammer is spinning by, exert when the hammer is at its lowest point? the hammer has a total mass of 20.0kg.
If the room’s radius is 16.2 m, at what minimum linear speed does Quicksilver need to run to stay on the walls without sliding down? Assume the coefficient of friction between Quicksilver and the wall is 0.236.
Chapter 20 Solutions
Sears And Zemansky's University Physics With Modern Physics
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