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Author Question: You run up a flight of stairs, and then you walk up a second, identical, flight of stairs. Compared ... (Read 20 times)

sheilaspns

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on: Jul 29, 2018
You run up a flight of stairs, and then you walk up a second, identical, flight of stairs. Compared with running up the first flight of stairs, in walking up the second flight your
 
  A) power output is greater.
  B) work output is smaller.
  C) work output is greater.
  D) power output is smaller.
  E) None of the above.

Question 2

An ideal spring with a spring constant (force constant) of 22N/m is stretched from equilibrium to 2.9 m. How much work is done in the process?
 
  A) 186 J B) 47 J C) 121 J D) 93 J


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dyrone

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Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

D


sheilaspns

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Reply #2 on: Jul 29, 2018
Thank you!


dyrone

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Reply #3 on: Jul 29, 2018
Always glad to help...


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