The automobile has a weight of 2700 lb and is traveling forward at 4 ft> s when it crashes into the wall. if the impact occurs in 0.06 s, determine the average impulsive force acting on the car. assume the brakes are not applied. if the coefficient of kinetic friction between the wheels and the pavement is μk = 0.3, calculate the impulsive force on the wall if the brakes were applied during the crash. the brakes are applied to all four wheels so that all the wheels slip.

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.

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.