B) A skilled jet fighter flies a stunt plane in a vertical circle of 1200 ft radius at constant speed of 140 mi h^1. Calculate the jet fighter's
acceleration at
(i) the highest point
(ii) the lowest point
Given
1 mi = 1609 m
1 ft = 0.3 m

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?

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

What do scientists use a scientific law for?