When light shines on a metal surface, the maximum energies of emitted electrons:

1. vary with the intensity of the light

2. vary with the frequency of the light

3. vary with the speed of the light

4. are random

Grape juice solid-conduction, solid-convection, fluid-conduction, fluid-convection

The number of protons in the nucleus of an atom determines the species of the atom, i. e., the element to which the atom belongs. An atom has the same number of protons and neutrons. But the electron number cannot be used instead because A.

One may conceive light to spread successively, by spherical waves. -Christiaan Huygens, 1600s What theory was Huygens writing about? A. the particle theory of light B. the reflection of light off objects C. the way objects refract light D.

How many electrons will a single atom of sulfur with no charge and no bonds have in its valence shell?

Most arson fires are produced through what? Accelerants Dynamite Chemical residues Steroids

Explain the relationship between motion and frame of reference.

Two students are looking at a brightly lit full Moon, illuminated by the reflected light from the Sun. Consider thefollowing discussion between the two students about what the spectrum of moonlight would look like.

When performing a battery load test, what should the load be set to?

If you push on a wall of a building what will happen

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.