How fast is a ball going when it hits the ground after being dropped from a

height of 13 m? The acceleration of gravity is 9.8 m/s2.

A. 14.2 m/s

B. 10.5 m/s

C. 8.7 m/s

D. 16.0 m/s

What quickly forms on a cold glass on a hot day.

How do the direction of a car's velocity and acceleration compare when the car is slowing down?

Action and reaction forces will cancel because they are pushing on the same object toward each other. True or False

If you were to cut a small permanent bar magnet in half, A. one piece would be a magnetic north pole and the other piece would be a south pole. B. neither piece would be magnetic. C.

What is the difference between a hurricane watch and a hurricane warning

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile

Which is not a property of an electromagnetic wave? O It is made of magnetic fields It travels at the speed of light O It is made of electrical fields It carries energy only through matter

Explain why your weight would be less in the moon than on earth even though your mass would not change. Use the law of universal gravitation in your explanation.