If a train conductor is describing the speed of the train as well as the direction the train is going, then the train conductor is said to be describing the train's. a. acceleration. b. speed. c. velocity d. magnitude

Which of the following stimulates the production of red blood cells? Caffeine Medium-chain triglycerides Erythropoietin Carnitine

6. Light from the sun reaches the earth in 480 seconds. The speed of light is 300,000,000 m/s. How far is the earth from the sun?

Which of these is a likely impact of stronger than normal trade winds in the Pacific Northwest of the United States?

What color does the star Alpha Centauri appear to be? A. Red B. Yellow white C. Blue D. Blue orange

How do intrusive igneous rocks differ from extrusive igneous rocks?

What two things change when an object is travelling at a constant speed

Two people are standing on a 3.12-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air, like a hovercraft. The two people, the platform and a 3.36-kg ball are all initially at rest. One person throws the 3.

Compared with falling on a wooden floor, a wine glass may not break when it falls to a carpeted floor because of the

Explain the formation of color in terms of reflection and absorption of light waves.

Stretched 1 cm beyond its natural length, a rubber band exerts a restoring force of magnitude 2 newtons.