Question

A diving bell is a 3.4 m -tall cylinder closed at the upper end but open at the lower end. The temperature of the air in the bell is 30 ∘C. The bell is lowered into the ocean until its lower end is 100 m deep. The temperature at that depth is 10∘C.

a)

How high does the water rise in the bell after enough time has passed for the air to reach thermal equilibrium?

Express your answer to two significant figures and include the appropriate units.

b)

A compressed-air hose from the surface is used to expel all the water from the bell. What minimum air pressure is needed to do this?

Express your answer to two significant figures and include the appropriate units.

Answer #1

A diving bell is a 4.4 m -tall cylinder closed at the upper end
but open at the lower end. The temperature of the air in the bell
is 30∘C. The bell is lowered into the ocean until its lower end is
100 m deep. The temperature at that depth is 10∘C.
Part A)
How high does the water rise in the bell after enough time has
passed for the air to reach thermal equilibrium?
Express your answer to two...

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A high diver leaves the end of a 6.0 m high diving board and
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Considering the diver as a particle,
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v⃗ 0.
Express your answer to two significant figures and include the
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Express your answer to two significant figures and include the
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A 0.250-kg wooden rod is 1.35 m long and pivots at one end. It
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What is the angular acceleration of the rod after it is
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Express your answer to three significant figures and include
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Express your answer to three significant figures and include
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Part A
Part complete
Is the tower in stable equilibrium?
no
yes
SubmitPrevious Answers
Correct
Part B
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Express your answer to two significant figures and include the
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d =
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A 4.5 kg box slides down a 4.8-m -high frictionless hill,
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A 4.5 kg box slides down a 5.2-m -high frictionless hill,
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A skateboarder starts up a 1.0-m-high, 30? ramp at a speed of
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How far from the end of the ramp does the skateboarder touch
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Express your answer to two significant figures and include the
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