when do you think the clock pendulums and he swings were at their highest and lowest kinetic & potential energy

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

What is the temperature in degrees celsius of a substance with a tempature of 49k

The movement of electrons between atoms is called an