What would be an example of chemical change that took a long time to occur

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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