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Author Question: Which of the following quantities are units of impulse? (There could be more than one correct ... (Read 17 times)

Zoey63294

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on: Jul 29, 2018
Which of the following quantities are units of impulse? (There could be more than one correct choice.)
 
  A) N  m
  B) kg  s/m
  C) kg  m/s
  D) N  s
  E) kg  m2/s2

Question 2

A bat, flying toward the east at 2.0 m/s, emits a shriek that is reflected back to it from a wall that is 20.0 m in front of the bat at the instant the shriek is emitted. Sound travels at 340 m/s in the air.
 
  How many milliseconds after emitting the shriek does the bat hear the reflected echo from the wall?


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TDubDCFL

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

C, D

Answer to Question 2

117 ms


Zoey63294

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Reply 2 on: Jul 29, 2018
Gracias!

kswal303

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Reply 3 on: Yesterday
Excellent

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