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Author Question: Daisy raises 10.Kg to a height of 2.5 meters in 2.0 seconds. (a) How much work did she do? (b) ... (Read 171 times)

pane00

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on: Jul 27, 2018
Daisy raises 10.Kg to a height of 2.5 meters in 2.0 seconds.
 
  (a) How much work did she do?
  (b) How much power was expended?
  (c) If she raises it in 1.0 s rather than 2.0 s, how do the work and power change?

Question 2

The change of the internal energy of an ideal gas depends upon
 
  A) changing temperature.
  B) changing pressure.
  C) changing volume.
  D) changing pressure and volume together.


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ecabral0

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 0.25 kJ
(b) 0.12 kW
(c) same work but power doubles

Answer to Question 2

A


pane00

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Reply #2 on: Jul 27, 2018
Thanks


ecabral0

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Reply #3 on: Jul 27, 2018
Welcome :)


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