Which is true? light waves do not change speed as they travel from air through water. light waves speed up as they travel from the air through the water light waves slow down as they travel from the air through the water.

Boy pulls a 5.0-kg sled with a rope that makes a 60.0° angle with respect to the horizontal surface of a frozen pond. The boy pulls on the rope with a force of 10.0 N; and the sled moves with constant velocity.

Define a scalar. Give two examples of scalars that you have used recently

How much force does it take to stop a 1,000 kg car traveling at 20 m/s in 10 seconds?

Which describes how sliding friction affects pushing a cereal box across a tabletop? It acts in the direction of motion. It acts in the direction opposite of motion. It is usually greater than static friction. It equals the weight of the box.

What type of voltage source has a solid electrolyte?

What is the approximate increase in size from a 1 w to a 2w carbon resistor?

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

A gas in a piston is compressed doing - 439 j of work, and its internal energy increases by 318 j. how much heat flows? (be careful with + and -. + w = expansion. + q = added, + u = temp goes up) (unit = j)

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.