8. a 740 kg car traveling 19 m/s comes to a complete stop in 2.0 s. what is the force exerted on the car during this stop?

Density of salty water as compared to the density of pure water is(a) is less(b) is always equal(c) is always more(d) may be less or more

Name the non metal condut electricity

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?