What is velocity and what do you mean by gravity

A heat engine with a thermal efficiency of 45 percent rejects 500 kj/kg of heat. how much heat does it receive

What is 95°F on the Celsius scale?

If two rocks with masses of 1 and 10 kilograms. What is the relation between their inertias Between their masses Between their weights on Earth?

What is the momentum of a cat mass of 4 kg that is running south with a speed of 1.5 m/s?

The origin of the universe remains a question. true false

What happens if you don't wear your school uniform?

Velocity is the rate at which an object moves in a certain direction. what would cause a change in velocity?

The position of an object is given by x = at3 - bt2 + ct, where a = 4.1 m/s3, b = 2.2 m/s2, c = 1.7 m/s, and x and t are in SI units. What is the instantaneous acceleration of the object when t = 4.1 s?

A 0.25 kg baseball is in contact with a bat for 0.0075 s and exerts a force of 18,500 N. What impulse is delivered to the ball?

What is the American psychology Association ethical principle of psychology and code of conduct based upon