Which of the following energy forms is not involved in hitting a tennis ball? a. kinetic energy c. gravitational potential energy b. chemical potential energy d. elastic potential energy

Which of the following determines whether light shining on a metal surface will eject electrons from that surface? A. the intensity of the light B. the frequency of the light C. the angle of incidence of the light D.

A 5.3 x 10^12 kg satellite is 1,800 m from another satellite that has a mass of 3.5 x 10^8 kg. what is the gravitational force between the satellites

Why don't nonvascular plants grow very tall?

The overhang beam is subjected to the uniform distributed load having an intensity of w = 50 kn/m. determine the maximum shear stress developed in the beam.

You have a machine that can only handle 3 significant digits. Let x=25.74 y=9.370 and both have 4 correct figures. What is the correct numerical value for z=x-y on this machine?

1: Explain how insurance transfers risk to a third party.

How do you find period when you have frequency

Which electromagnetic waves have a higher frequency than visible light

Calculate the speed for a car that went a distance of 125 miles in 2 hours time

A small 25 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?