What does the law of conservation of energy state? a. energy can be created from nothing. b. energy cannot be destroyed. c. energy cannot change forms. d. the total amount of energy in a system changes continuously.

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Give an example in which the electrical energy changes to light energy

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?