An 20-kg bicycle carrying a girl is traveling at a speed of 7 m/s. What is the kinetic energy of the girl and bicycle? Write formula, plug in numbers, show squared step, give answer with units

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

The ability to make things happen is also called a. heat b. force c. matter d. energy

Why would an orange roll of your cafeteria tray if you stopped suddenly