Which refers to the ratio of output force to input force of a machine?
mechanical advantage
average strength
total power
energy requireme

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

Which statements best describe energy? check all that apply. the total amount of energy in the universe remains constant. the total amount of energy in the universe changes constantly. energy cannot be converted from one form to another. energy can be converted from one form to another. energy cannot be created or destroyed. energy can be created or destroyed.