If a wave's frequency increases, what can be said about its energy?
a. it will increase.
b. it will decrease.
c. it will stay the same.

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

If a nissan titan has a mass of 2,300 kilograms how many grams is that