A 52.0-kilogram skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?

Time in years How many grams of cobalt-60 will remain after two half-lives? 1

The object is not changing velocity; the object is not accelerating

Which of the following statements or expressions is most nearly associated with Kepler's Third Law of Planetary Motion? A. P2 = A3 B. Planetary orbits revolve around two foci. C. A planet moves fastest when it is farthest from the sun. D.

What falls between living and nonliving things?

What is the difference between ideal mechanical advantage (ima) and actual mechanical advantage (ama) ?

What is the speed of sound in a vacuum?

An object has 60 j of potential energy and 40 j of kinetic energy. then 10 j of the potential energy is converted into kinetic energy. how much work was done on the object?

At what height above earth's surface is the gravitational acceleration reduced from its sea-level value by 0.40%?

A rocket moves away from the surface of the earth. As the distance r from the center of the planet increases, what happens to the force of gravity on the rocket?

Why am i not floating?