Based on the diagram of a ball rolling down hill, what statement is true? les
A)
The ball in box Chas less kinetic energy than ball in box B.
B
The ball in box A has less kinetic energy than the ball in box B.
The ball in box Chas less kinetic energy than the ball in box D.
D)
The ball in box A has equal amounts of potential and kinetic energy

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing