When does the mechanical energy of a body falls freely equal twice its potential energy?

When a box rests on a round sheet of wood on the ground, it exerts an average pressure p on the wood. If the wood is replaced by a sheet that has half the diameter of the original piece, what is the new average pressure?

Amy walks 32 m right and then 12 m left. She turns and walks another 28 m right and then turns and walks 7 m left. What is Amy's displacement?

For electricity to flow, what do you need?

which of the following is an effect of the electric Force A : A north pole and South pole repel each other. B: A positive and negative charge attract each other. C: A positive and negative charge repel each other.

List the name and number of each element on both sides of this equation CH4+Cl2

Laser light of wavelength 470 nm shines on a pair of slits at normal incidence, producing a pattern of maxima on a large screen 92.0 cm away from the slits. The second order maximum is observed to be 31.7 cm away from the central maximum. a.

What does the slope of a line of best fit represent

A bowling ball is pushed with a force of 22.0N and accerlates at 5.5 m/s square. What is the mass of the bowling ball A - 4.0 kg B-0.25 kg C-25 kg D-4.00 kg

How to eat butter. I want to know how you all eat the butter.

What is the transfer of heat through a solid as a result of molecular action called? radiation convection conduction magnetism?