Can someone do my physics work I’ll pay $200

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Asher cycles 12 miles in 16 hours. what is his speed?