A trampoline has a spring constant of 3430 N/m how far will the trampoline sink when a 70 kg person steps on it

What is the potential energy of a 3 kg - ball that is on the ground?

What is the net force on a 2-kg skateboard accelerating at a rate of 2 m/s/s?

A child is riding a Ferris wheel with his stuffed bear. The wheel has a diameter of 12.0 m, and it rotates at a rate of 4.0 revolutions per minute. When exactly at the top of the ride the child accidentally drops the stuffed bear.

How does the movement of electrons create an electric charge?

For convection to occur, A. dark objects are required to absorb energy. B. substances must be in contact with each other. C. particles must be able to flow within a substance. D. heat must transfer from an area of less energy to more energy.

Two children pulling the rope with the same force in opposite direction is that an unbalanced force or a balanced force

During sublimation particles in a solid room deodorizer move directly into the air as a gas how does the movement of the deodorizer particles change? the particles ___.

A 50-g ball rolls across the table at 2 m/s. A 100-g ball rolls across the same table at 1 m/s. Which ball has more momentum?

The cross section area of a hole is 725cm^2. Given that the area of a circle is A=3.14r^2, find the radius of the hole.

How long does it take the moon to go from full-moon phase to new-moon phase