To avoid an accident, a driver steps on the brakes to stop a 1000kg car traveling at 65km/h. if the braking distance is 35m, how much force is necessary to stop the car?

The air that we breath is made mostly of which gaseous molecule

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.

Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.