What is the numeric value of a mole for atoms or molecules?

Lien uses a spring scale to pull a block toward the right across the lab table. The scale reads 8 N. Which force should Lien conclude is also 8 N?

A 28-kg beginning roller skater is standing in front of a wall. By pushing against the wall, she is propelled backward with a velocity of - 1.2 m/s. While pushing, her hands are in contact with the wall for 0.80 s.

Which situation is an example of a human-induced environmental change affecting a population

4.7 cm. The tube is sealed at one end and loaded with lead shot to give it a total mass of M = 130 g. The tube floats in water (of density 1 g/cm3) in vertical position, loaded end down.

Copernicus and Kepler were astronomers who had proposed theories about the solar system. Copernicus believed that Earth and other planets circled a stationary sun. Kepler believed that the sun rotated like planets.

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww

According to the article, data from scientific observations fulfill what three functions

What are the three ways that an object can accelerate