Wich usage of water uses the least amount in a year in the united states

A. public water supply

B. livestock

C. irrigation

D. industry

How does heat energy move by convection when a cook heats a pot of water? A. Heat energy moves from the air into particles of water that are touching air. B. Particles at the bottom of the water carry heat energy to the top of the water. C.

A 0.16 kg billiard ball moving at 1.20 m/s collides elastically with one of the same mass at rest. It continues at a speed of 0.6 m/s afterward in a different direction from before.

Newton first law of motion is also know as the law of

One-dimensional motion

When a block with a hole in it is heated why does not the material around the hole expand into the hole and make it small

Anti-reflective coatings on lenses use thin-film interference to eliminate the reflection of a particular color. Suppose a glass lens (ng = 1.53) is covered with a thin film (nf = 1.31) to prevent green light (λ = 534 nm) from being reflected.

Which of the following is not expressions of impulse

A stone is dropped from the top of 50 m high tower simultaneously another stone is thrown upward with a speed of 20 m/s. calculate the time at which both the stones cross each other

What is the nature of force between two charges if q1+q2=0

If you shine a laser toward a friend in a spaceship who is moving away from you at half the speed of light, what does your friend see