We can only tell the earth is rotating almost 960 miles an hour if we a
look at other people around us as a reference point.

b
look at mountains far away from us as a reference point.

c
use a reference that is not on the earth, like the sun or stars.

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.

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

The solid that is formed and usually sinks to the bottom of a solution is the