A spaceship has a mass of 10,500 kg. The spaceship is launched from Earth and lands on a distant planet where it has a weight of 85,000 N. What is the acceleration of gravity on this planet.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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?