Which is true of a mechanical wave?

A) It must have a medium.

B) It must travel in empty space.

C) Both sound and light are examples.

D) It can travel in a vacuum.

After completing a career search, Patrick has decided that he wants to be a paralegal. Which two skills or abilities are important for him to have in order to excel in this career?

In a nuclear power station which step of the process converts energy of other forms into electrical energy that can be used as electricity? A) Fission reactions occur in the reactor core, generating heat.

Cellular telephones utilize A. very low frequency x-rays. B. very high frequency waves. C. microwaves. D. radar waves

Give an example in which the electrical energy changes to light energy

A car of mass 1000kg is moving at a speed of 20m/s. It's brought to rest at a distance of 50m. Calculate the net force acting on the car.

What can you do to reduce the electric uses within your home?

The impulse experienced by a body is equivalent to the body's change in A) velocity B) kinetic energy C) momentum D) force

Does the system's kinetic energy increase, decrease, or stay the same? or is there not enough information to tell?

How do inertia and centripetal force combine to keep an object moving in circular motion?

Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C.