Please help! 15 points!! You and a friend go to the park to use the seesaw. if you have a mass of 55 KG and your friend has a mass of 80 KG. You sit at the end of the seesaw which is 2M from the center. Where does your friend need to sit so you balance?

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n