Increased ozone in the lower atmosphere near the ground results primarily from

Two charges are sitting 1.5 m apart with a force of 3 N between them. They are now moved farther apart to 2.25 m and one of the charges is increased by a factor of 4. What is the magnitude of the new force between the two charges?

Why matter has mass

What unit is commonly used when measuring the energy rating of an electrical appliance

What is the reaction force when a hammer hits a nail?

Which state of matter is made up of atoms and molecules that are able to move with complete freedom and collide with each other and with the walls of their container? A. gas B. solid C. liquid D. plasma

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.