According to the law of conservation of mass, the mass of the reactants in a reaction must the mass of the products in a reaction.

A.

be different from

B.

be equal to

C.

be greater than

D.

be less than

How are patterns produced by Hydrogen and Neon different from each other?

When a soccer ball is headed from one player #1 to player #2 across the soccer feild, what is the projectile? A. player #2 B. soccer field C. player #1 D. soccer ball

A ball dropped by melissa is falling downward toward the floor

A raft with a mass of 180 kg carries two swimmers having masses of 50 kg and 80 kg. The raft is initially at rest. The swimmers dive off opposite ends of the raft at the same time, each with a speed of 3 m/s.

Why are physicists hired to work at car companies?

a 2 kg rock is dropped from the top of a 30 m High building calculate the ball at the time that it strikes the ground

Water, with a density of rho = 1145 kg/m 3, flows in a horizontal pipe. In one segment of the pipe, the flow speed is v 1 = 7.33 m/s. In a second segment, the flow speed is v 2 = 1.57 m/s.

What does the color of a star determine

Scientific cosmology Choose one: A. investigates the overall structure and history of the Universe. B. pertains to legends and verbal history about the beginnings of the Universe. C. proves the Big Bang theory. D.

Which statement best describes longitudinal waves? A) Particles of the wave medium move perpendicular to the direction of propagation of the wave. B) Longitudinal waves do not require a material medium for propagation.