Atennis ball is thrown vertically upward with an initial velocity of 8.0 m/s. what will be its velocity when it returns to its starting point? how long will it take to reach its starting point?

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.