What do wind turbines, hydroelectric dams, and ethanol plants have in common

Suppose that 9 inches of rain falls in a 24-hour period. If the cross-sectional area of a stream in the region is essentially constant (perhaps under a highway bridge), what must happen to the velocity of the stream if it is to accommodate the extra

Which city has already hosted the Olympic Games three times?

What organisms disappeared duing Precambrian

Magnesium has 12 protons in its nucleus. which is the atomic number of magnesium? a. 24 b. 6 c. 12

Why the bicycle stops when the cyclist stops pedaling?

How did Einstein's and Newton's theories differ in terms of explaining the cause of gravity?

A sled being dragged to the right across loosely packed snow with a rightward acceleration

Imagine two artificial satellites orbiting earth at the same distance. one satellite has a greater mass then the other one which of the following would be true about there motion? 1.

What is energy? (Not the answer from google search.)

Explain why the friction force between two surfaces increases if the force is pushing the surfaces together increases.