Determine how many significant figures are in each of these numbers. 1. Rule 1: All nonzero numbers are significant
194 ___ 92848 ___
79.36 ___ 5.3 ___
92.34 ___ 11.1 ___

2. Rule 2: All zeros between nonzero digits are always significant
2.03 ___ 708 ___
230518 ___ 70,164 ___
5.304 ___ 10001 ___

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.