A 40kg box of junk food is being pushed along a wooden floor with a force of 100N. If the coefficient of friction is 0.2, what will be the acceleration of the box? Remember to show the equation you are using, then substitutions, then final answer.

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius