Which action will increase the gravitational force between two objects?
A. Moving forward he objects closer together
B. Removing some mass from one of the objects
C. Moving the objects farther apart
D. Removing half of each object

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?

What is special about a dc circuit ?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?