How much of the moon is always illuminated by the sun?

Which is evidence that scientists use to support the big bang theory? A. Earth is the only planet with permanent liquid water on its surface. B. Most galaxies are moving away from each other. C. Most orbits have an elliptical shape. D.

Vhich best describes the act of using senses or tools to gather information? -creating a hypothesis -making an observation -summarizing the results -recording the measurements

An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.7 s. A passenger in the elevator is holding a 5.1 kg bundle at the end of a vertical cord. What is the tension in the cord as the elevator accelerates

If the moon disapared what affect would this have on earths tides

A man of mass 80 kg runs up a flight of stairs 20 m high in 10 s. (a) how much power is used to lift the man? (b) If the man's body is 25% efficient, how much power does he expend? (c) This man consumes approximately 1.

Why arent insulators allowed in operating rooms

What does Kepler's second law state? A. Planets travel in ellipses. B. Planets sweep equal areas in equal times. C. A planet's apparent backward movement is termed retrograde motion. D.

Why do charges build up in a cloud

How does the wave model of electrons orbiting the nucleus account for discrete energy values?

An ecosystem is all the populations of organisms that live together and A. the microorganisms that depend on them. B. the organisms that generate energy from sunlight. C. the physical factors with which they interact. D.