A ball is dropped from rest. how fast is the ball going after 3 seconds

Waves that require a medium through which to travel are called electromagnetic waves True or False?

A car accelerates from 13 m s to 25 m s in 6.0 s. what was its acceleration? how far did it travel in this time? assume constant acceleration.

How do soaring birds utilize convection? A : They use the warm air to stay warm. B : They use thermal updrafts to stay aloft. C : They flap their wings to push against the warm air. D : None of the choices is correct. E : They glide on the wind.

A sports car moving at constant speed travels 115m in 5.3 s. If it then brakes and comes to a stop in 4.0 s, what is it's acceleration? Express the answer in terms of g's, where g = 9.

Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the twelfth floor, 45 m above that pipe. Express your answer using two significant figures.

On very dry days, when you use a comb or a brush, your hair sometimes stands on the end and maybe even sticks to the comb or brush. Explain why this happens in terms of electric charge.

A large balloon is initially filled to a volume of 1.96 l at 318.44 k and a pressure of 2.89 atm. what volume of gas will the balloon contain at 1.77 atm and 336.33 k?

How to calculate kinetic energy? (physics/physical science)

What's the difference between the offspring of an asexual organism and a sexual organism

The contamination that results from the spread of bacteria from meat to vegetables is called