What is the charge of 1.875 x 1022 electrons if 1 C = 1.875 x 1022 electrons?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

What is the magnitude of the gravitational force acting on the earth due to the sun?