A motorcycle travels at a constant 20 m/s for 10 s. How far has it traveled?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly