An object moving in a circle is represented by the motion Based on the map, at which point is the object
accelerating toward the right?
map.
O W
W
Ox
OY
O z
Z
f
Х
Y

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?

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration