Sarah is holding a cup of water (mass = 200 g). She attempts to twirl it around her head with the minimum velocity needed to keep the water in the cup. Find
this velocity. *

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)