What happens when you touch a metal doorknob after rubbing your shoes on the carpet

What is the kinetic energy of a 10-kg bicycle moving at 10 m/s

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.