Is hydroelectricity animate or inanimate?

Which of the following astronomers was the first to propose elliptical orbits for the planets in our solar system? A. Brahe. Kepler. Galileo. Copernicus

Which best describes why water has relatively high surface tension?

Describe how an aurora is formed

A contact force is a force which A. can occur over long distance. B. occurs when two objects are near enough to influence each other. C. occurs when two objects are touching each other. D. can occur over short distances.

What is a transverse wave

A rock is thrown downward into a well that is 7.92 m deep. Part A If the splash is heard 1.17 seconds later, what was the initial speed of the rock? Take the speed of sound in the air to be 343 m/s.

Which drum would make a sound that fades away faster - one that makes a loud sound or one that makes a more mellow sound Why?

Which of the following is NOT a way to increase the solubility of a solid in water? A. crushing the solid B. shaking the mixture of solid and water C. raising the temperature of the water D. letting the mixture stand still a long time

Which of the following is true about cells? A. Cells have specialized components that perform different, specific functions. B. A cell's components are all identical and perform the same function. C.

How much heat is contained in 100 kg of water at 60.0 °C?