In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. suppose the victim falls by 0.40 m, the mass that moves downward is 63.0 kg, and the collision on the floor lasts 0.0830 s. what are the magnitudes of the (a) impulse and (b) average force acting on the victim from the floor during the collision?

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?