Author Question: What is the amplitude (in meters) of a wave whose displacement is given by y = 50. sin(0.20x + 120t) ... (Read 15 times)

Chloeellawright

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What is the amplitude (in meters) of a wave whose displacement is given by y = 50. sin(0.20x + 120t) cm?
 
  A) 0.50 m
  B) 1.0 m
  C) 6 m
  D) 0.20 m
  E) 10 m

Question 2

An airplane is pointed in the NE direction and is moving 71. m/s with respect to the air. The jetstream (moving air) carries the plane 30. m/s toward the East. What is the velocity of the plane relative to the ground?
 
  What will be an ideal response?



Melissahxx

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Answer to Question 1

A

Answer to Question 2

94. m/s at 32.



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