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Author Question: When a heavy barge floats above a fish swimming in the water below, does the PRESSURE exerted upon ... (Read 75 times)

future617RT

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on: Jul 27, 2018
When a heavy barge floats above a fish swimming in the water below, does the PRESSURE exerted upon the fish change (and why)?
 
  What will be an ideal response?

Question 2

Two toy cars (16 kg and 2 kg) are released simultaneously on an inclined plane that makes an angle of 30 with the horizontal. Which statement best describes their acceleration after being released?
 
  A) The 16-kg car accelerates 8 times faster than the 2-kg car.
  B) The 2-kg car accelerates 8 times faster than the 16-kg car.
  C) Both cars accelerate at a rate of 8g.
  D) Both cars accelerate at a rate of 0.866 g.
  E) Both cars accelerate at a rate of g sin(30).


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lkanara2

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Reply #1 on: Jul 27, 2018
Answer to Question 1

NO. The barge displaces just enough water to equal its weight. The barge can be replaced by water up to the water surface and the weight of that overlying material is the same upon the fish.

Answer to Question 2

E


future617RT

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Reply 2 on: Jul 27, 2018
Gracias!

mammy1697

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Reply 3 on: Yesterday
Wow, this really help

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