A 60 kg man running on a road had a velocity of 6.0m/s. The road ahead of the man was covered by sand. The man ran through the sand for 12 seconds and his velocity when he had crossed the the sand-covered part of the road was 5.5 m/s. What average force did the sand apply to the man while he ran across it?

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

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?