Posted by Dante on .
A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 140 m, at what frequency must it rotate so that it simulates Earth's gravity?

Physics 
drwls,
Require that R w^2 = g
w is the angular velocity in radians per second and R is the radius. Solve for w.
Divide w by 2 pi to get revolutions per second.