Suppose you are using a screwdriver to pry the lid off a paint can. identify the fulcrum, the effort arm, and the resistance arm.

The fulcrum in the middle, effort on the handle and the resistance arm on the lid. The fulcrum is the pivot around which the lever turns, A lever is a simple machine that consists of a rigid bar supported at one point, known as the fulcrum. A force called the effort force is applied at one point on the lever in order to move an object, known as the resistance force, located at some other point on the lever.

Protons have a positive charge and, collectively, give an element its atomic number.

Iagree c would be the answer