José is pinned against the walls of the rotor, a ride with a radius of 3.00 meters that spins so fast that the floor can be removed without the riders falling. when the ride accelerates to a speed of 17.0 m/s, his angular momentum is 3570 kg m2/s. what is his mass? remember to identify all data (givens and unknowns), list equations used, show all your work, and include units and the proper number of significant digits

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

What properties of a moving object are used in determining the object's energy of motion

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !