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Home Q & A Board Science-Related Homework Help Physics Astronomy
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YAZID YAZID
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6 years ago
The lower the frequency of a sound wave, the
 
  A) lower its velocity.
  B) greater its wavelength.
  C) smaller its amplitude.
  D) shorter its period.
  E) greater its velocity.

Question 2

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 3

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?
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ModorfielModorfiel
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6 years ago
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YAZID Author
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#2
6 years ago
Thank you for being such a great website leader! All of your answers were right.
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