An object falls 5 meters with a force of 980 newtons. How much work has gravity done?

The consumption of fossil fuels could be

Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?