Which scientists supported the heliocentric model of the solar system? Check all that apply.

a. Aristotle

b. Copernicus

c. Galileo Kepler

d. Ptolemy

Which industry was an oligopoly in the United States? a. agriculture industry c. steel industry b. shipping industry d. coal industry

What is the magnitude of the net force ∑ F on a 1.9 kg bathroom scale when a 74 kg person stands on it?

The constant pressure molar heat capacity, C_{p, m}C p, m , of nitrogen gas, N_2N 2 , is 29.125/text{ J K}^{-1}/text{ mol}^{-1}29.125 J K - 1 mol - 1 at 298/text{ K}298 K.

Astrophysicists believe the dominant hot spots in the cosmic background radiation should be about 1° in angular size if the universe is flat. What do experimental measurements of this angular size tell us?

For the equation 3Cu + 8HNO3 → 3Cu (NO3) 2 + 2NO + 4H2O, how many units of NO3 are represented on the products side? A) 2 B) 3 C) 6 D) 8

Inside a stereo speaker, you will find two permanent magnets: one on the cone and one near the cone. True of false?

When a hurricane nears land what causes the most damage

Calculate if an electric hair dryer uses 2,400 j of energy in 2 s, what is its power?

Which of the following choices best represents a potential stressor?

How do you distinguish between speed, velocity, and acceleration?