According to the universe's total amount of energy does not change

How light used to study space

A small boat is moving at a velocity of 3.35 when it is accelerated by a river current perpendicular to the initial direction of motion. If the acceleration of the current is 0.750 m/s2, what will be the new velocity of the boat after 3.35s?

A 90kg cannon fires 100kg shell with muzzle velocity of 75m/s. Calculate the recoil velocity of the cannon relative to the ground

A baseball is thrown with 100 J of energy. if the ball is moving at 20.0 m/s, what is the mass of the ball in KG

If the trough and crest of two waves line up and double the height of the wave, what is happening?

College entrance requirement can include all of the following except

Suppose we imagine the sun to be about the size of a grapefruit. how big an area would the orbits of the eight planets of the solar system cover? the size of a western state (e. g.

Which best compares freezing and condensation? Both involve changes between liquids and gases. Both involve changes between gases and solids. Both involve the release of heat. Both involve the absorption of heat.

Identical cannonballs are fired with the same force, one each from four cannons having respective bore lengths of 1.0 meter, 2.0 meters, 2.5 meters and 3.0 meters.

The temperature of an object is a measure of the average thermal energy of the molecule in the object true or false