What is the frequency of an electromagnetic wave that has a wavelength of 4,000m?

You and your friends are going to play laser tag. This game is played in a dimly lit room where you shine lasers in an attempt to tag your opponent. What color of shirt would be the most advantageous shirt to wear and why?

Describe the process by which the action of a black hole can explain the energy radiated by quasars.

How do you find total potential energy

What is produced as the result of unequal warming of the earth's surface?

Which of the following is an example of diffraction A. Hearing a person around a corner before you can see them B. Seeing a person around a corner before you can hear them C. A straw in a glass of water appearing "broken" D.

Try it A volleyball player's hand applies a 39 N force while in contact with a volleyball for 2 seconds. What is the impulse on the ball?

Muscular strength is defined as:

Which piece of playground equipment could be used to model and explain the movement of matter in the biosphere

A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?

Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. when they hit the ground