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Author Question: If the intensity level of one trombone is 70 dB, calculate a reasonable estimate for the intensity ... (Read 41 times)

Hungry!

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If the intensity level of one trombone is 70 dB, calculate a reasonable estimate for the intensity level of 76 trombones all playing simultaneously in the same place?
 
  A) 146 dB
  B) 89 dB
  C) 70 dB
  D) 76 dB
  E) 82 dB

Question 2

Jason takes off across level water on his jet-powered skis. The combined mass of Jason and his skis is 75 kg (the mass of the fuel is negligible).
 
  The skis produce a forward thrust of 200 N and have a coefficient of kinetic friction with water of 0.10. Unfortunately, the skis run out of fuel after only 90 s. What is Jason's top speed?
  A) 150 m/s
  B) 240 m/s
  C) 24 m/s
  D) 90 m/s


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EAN94

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Hungry!

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Reply 2 on: Jul 29, 2018
Wow, this really help


tuate

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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