What is the amplitude (in meters) of a wave whose displacement is ...

[Chloeellawright]

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]

Answer to Question 1

A

Answer to Question 2

94. m/s at 32.

[Chloeellawright]

TY

[Melissahxx]

You're welcome