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Author Question: During each cycle, a thermodynamic engine takes in 4.0 J of energy, does 1.0 J of work, and expels ... (Read 99 times)

eruditmonkey@yahoo.com

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on: Jul 29, 2018
During each cycle, a thermodynamic engine takes in 4.0 J of energy, does 1.0 J of work, and expels 3.0 J of energy. What is its efficiency?
 
  What will be an ideal response?

Question 2

A 10-gram wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along the wire, its wavelength is 0.60 m, and its amplitude is 8.4 mm.
 
  How much time does it take for a crest of the transverse wave to travel the length of the wire? A) 36 ms
  B) 31 ms
  C) 40 ms
  D) 44 ms
  E) 49 ms


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fdliggud

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

25

Answer to Question 2

A


eruditmonkey@yahoo.com

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

tranoy

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Reply 3 on: Yesterday
Wow, this really help

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