a particle at T1 = -2.0 s is at X1 = 3.4 cm and at T2 = 4.5 s is at X2 = 8.5 cm. what is the average velocity, can you calculate its average speed from these data?

As the distance from a magnet increases, what happens to the magnet force?

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?

Aphase diagram assumes is kept constant.