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course Phy 232
7/33:40
Your solution, attempt at solution:
If you are unable to attempt a solution, give a phrase-by-phrase interpretation of the problem along with a statement of what you do or do not understand about it. This response should be given, based on the work you did in completing the assignment, before you look at the given solution.
005. `query 5
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Question: query introset plug of water from cylinder given gauge pressure, c-s hole area, length of plug.
Explain how we can determine the velocity of exiting water, given the pressure difference between inside and outside, by considering a plug of known cross-sectional area and length.
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Your Solution:
The KE of the water is equal to the work done on the plug by the water pressure, so
KE=W and therefore (1/2)mv^2=p*A*L
You know everything but mass and velocity from the problem, and you can find mass by using the volume of the
cylinder to see how much water there is, then finding the density of that. Then just solve for velocity."
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