A downhill skier has her skis sharpened and waxed before every race. What effect would this have on her performance?

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Explain why you think this diagram shows what happened to the carbon in the biodome.