A ball of mass 2 kg fallsfrom a rof that is 5 m above the ground. How much gravitational potential energy did the ball lose when it reached the ground, in units of joules? give your answer as a positive value

Can the total amount of energy in a system transfer between potential and kinetic?

A cheetah can run from 0 to 70 mph in 2.2 seconds. what is speed in m/s

Explain how the density of a submarine changes so that it can sink

The forces that hold different atoms or ions together are

If the gas mileage of a Honda Civic car is 38 miles per gallon how many liters of gasoline would the car use to move from the Essex campus to the Catonsville campus? The distance between the two campuses is 37.2 km.

If element X has 17 protons, how many electrons does it have?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries