Author Question: You ride on an elevator that is moving with constant upward acceleration while standing on a ... (Read 195 times)

sarasara

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You ride on an elevator that is moving with constant upward acceleration while standing on a bathroom scale. The reading on the scale is
 
  A)
 
  equal to your true weight, mg.
  B)
 
  more than your true weight, mg.
  C)
 
  less than your true weight, mg.
  D)
 
  zero.
  E)
 
  could be more or less than your true weight, mg, depending on the magnitude of the acceleration.

Question 2

The vertical displacement of a string is given by y(x,t) = (6.00 mm) cos(3.25 m-1)x - (7.22 s-1)t. What is the speed of the wave?
 
  A)
 
  0.450 m/s
 
  B)
 
  1.41 m/s
 
  C)
 
  2.22 m/s
 
  D)
 
  3.16 m/s
 
  E)
 
  23.5 m/s



kusterl

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Answer to Question 1

B

Answer to Question 2

C



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sarasara

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Both answers were spot on, thank you once again



kusterl

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