A 28 kg child on a swing is traveling at 4.2 m/s and has 315 J of total mechanical energy. A). What is his gravitational potential energy?

B). How high is he above the ground?

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).