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Author Question: An empty coal-car (mass 20,000.kg) of a train coasts along at 10.m/s. An unfortunate 3000. kg ... (Read 770 times)

student77

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on: Jul 27, 2018
An empty coal-car (mass 20,000.kg) of a train coasts along at 10.m/s. An unfortunate 3000. kg elephant falls from a bridge and drops vertically into the car. Determine the speed of the car immediately after the elephant is added to its contents.
 
  What will be an ideal response?

Question 2

At a depth of about 1030. m in the sea the pressure has increased by 100. atmospheres (to about 107 N/m2). By how much has 1 m3 of water been compressed by this pressure? The bulk modulus of water is 2.3  109 N/m2.
 
  What will be an ideal response?


ghepp

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

8.7 m/s

Answer to Question 2

0.0043 m3


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