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Author Question: When a rocket is traveling toward a mountain at 100 m/s, the sound waves from this rocket's engine ... (Read 275 times)

BrownTown3

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on: Jul 29, 2018
When a rocket is traveling toward a mountain at 100 m/s, the sound waves from this rocket's engine approach the mountain at speed V. If the rocket doubles its speed to 200 m/s, the sound waves from the engine will now approach the mountain at speed
 
  A) 4V.
  B) 2V.
  C) V.
  D) V.

Question 2

A 2.15 kg lightly damped harmonic oscillator has an angular oscillation frequency of 0.261 rad/s. If the maximum displacement of occurs when t = 0.00 s, and the damping constant b is 0.74 kg/s what is the object's displacement when t = 4.01 s?
 
  A) 0.50 m
  B) 0.43 m
  C) 0.58 m
  D) 0.65 m


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Natalie4ever

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

Answer: D

Answer to Question 2

Answer: A


BrownTown3

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Reply #2 on: Jul 29, 2018
Thanks


Natalie4ever

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Reply #3 on: Jul 29, 2018
Welcome :)


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