Force and distance are used to calculate work. Work is measured in which unit? joules watts newtons meters

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

For which pair of objects would adding the same a