How much acceleration does a car need if it is to go a distance of 620 ft. In a time of 20 sec while it is speeding up

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is