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gavmur [86]
3 years ago
8

A makeshift sign hangs by a wire that is extended over an ideal pulley and is wrapped around a large potted plant on the

Physics
1 answer:
ella [17]3 years ago
4 0

Answer:I know the answer for B cus I’m doing the same problem. For B, you would only take the coefficient of friction given and then multiply it by the Normal Force, which in this case is the same as the Gravitational Force.

Explanation:

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Answer:

option C

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Explanation:

we know by Ideal Gas law:

P1V1 = nRT1

P2V2 = nRT2

according to the question

pressure is doubled and volume is reduced to half  

so we have

new pressure = 2*P1

new volume = V1/2

hence,

(2P1) * (V1/2) = nRT2

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we have now

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we get

T1 = T2

thus no change in temperature

we know that internal energy is given as

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since temperature is directly proportional to internal energy and since temperature remains constant therefore internal energy remains constant

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thus, multiplication factor n = 1 when volume change to half and pressure change to double

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