A tennis ball is dropped from 1.68 m above the ground, It rebounds to a height of 0.818 m.
With what velocity does it hit the ground?
The acceleration of gravity is 98 m/s^2 (Let
down be negative.)
Answer in units of m/s.

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

True or false graphs must include scales that increase by the same amount

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.