Which of the following statements is true? energy input is always greater than energy output. magnetic fields are weakest at the poles of a magnet. magnetic fields can push and pull protons. a change in acceleration is called velocity.

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto