One property of an electron is question 1 options: a net charge of 0. a charge of +1. a charge of -1. an atomic mass of -1.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

the force required to move the cart is divided by three or 33.33 n.