F= 2.0*10^20 n, g = 6.67*10^-11 nm^2/kg^2, m1 = 5.98*10^24kg, r = 3.8×10^8m. solve for m2. i just need detailed on how to solve it

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to