Large, flat areas on the Moon's surface once thought to be remnants of ancient seas

As a positively charged object moves toward a negatively charged object, their potential energy increases. As a positively charged object moves toward another positively charged object, their potential energy increases.

Suppose an oxygen molecule traveling at this speed bounces back and forth between opposite sides of a cubical vessel 0.17 m on a side. What is the average force the molecule exerts on one of the walls of the container?

A physicist found that a force of 0.72N was measured between two charged sphere. The distance between the sphere was 0.90 m. Calculate the force between the two sphere when the distance was decreased to 0.50 m.

Ray of light, hope, and echo are the names of japan's shinkansen, a nationwide network of what?

A pumper is supplying a 400-foot hoseline with 120 gpm flowing. The hoseline is composed of 250 feet of 2½-inch hose reduced to 150 feet of 1½-inch hose.

Which of the outer planets are most like Earth? How?

The pressure inside a champagne bottle can be quite high and can launch a cork explosively. Suppose you open a bottle at sea level. The absolute pressure inside a champagne bottle is 6 times atmospheric pressure; the cork has a mass of 7.

Using a cathode ray tube, Thomson confirmed that atoms must have an overall positive charge. atoms are made of particles that have a negative charge. electrons in atoms must have varying amounts of energy. electrons are only found in the nucleus.

A ball is rolled along the inside of a partial hoop lying flat on a table. which path will the ball follow when it gets to the end of the hoop?

What pattern of material movement found in the Earth system tracks how an element moves from living to nonliving parts? a. rock cycle b. calcium cycle c. carbon cycle d. none of the above