How long will it take for a rock to fall 50 meters?
The acceleration is -9.81

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

What properties of a moving object are used in determining the object's energy of motion

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?