Which of the following solutions can be used to neutralize a solution of hmo3

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

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force