On a topographic map, contour lines create a group of concentric, closed loops. Which of the following features could this indicate?

a. a stream channelb. hilltopc. depressiond. a cliff

How does the centripetal force depend on speed, radius and the revolving mass?

What particles are found in the area surrounding the necleus

If you mixed potassium, neon, and iodine together what would you expect neon to do?

Which of the following best summarizes the quantum model of atoms? A. Electrons reside in known positions in fixed orbits around the nucleus. B. Electrons are waves that travel in known paths around the protons. C.

Which of the following is an example of a rotating body? A rocket lifting off, a box sliding down a ramp, a wheel on a moving wagon, a spring moving up and down

A ball is thrown horizontally from the top of a tower at the same instant that a stone is dropped vertically. Which object is traveling faster when it hits the level ground below if neither of them experiences any air resistance?

Which type of noise has sound at every frequency within the range of human hearing?

The Morpho rhetenor butterfly is shown above. The name Morpho refers to the butterfly's

What is the voltage in a circuit with a resistance of 12 ohms and a current of 20 amp?

You are about to attack a troll in a role-playing game. You will throw w with the letters A through F. In order to bear you will beat the troll? ning game. You will throw two dice, one numbered one to eight and the other gh F.