The moving part of a speaker goes in and out 400 times per second. The frequency of the sound produced is: a
4 hertz.
Ob
40 hertz.
400 hertz.
4,000 hertz.

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.

Which equation is mostly likely used to determine the acceleration from a velocity vs time graph