A system consists of 55 electrons and 43 protons. is the total charge of the system positive or negative

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Why is metal often used for cooking pan?

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *