Which statement accurately classifies helium?

A. it is an atom

B. It is a mixture

C. It is a molecule

D. It is a compound

A 15.0 μF capacitor is charged to a potential difference of 700 V. The terminals of the charged capacitor are then connected to those of an uncharged 11.0 μF capacitor.

A. True b. False: A wave can slow down and lose energy even within the same medium.

Determine the direction of the effective value of g⃗ at a latitude of 45 ∘ North on the Earth.

Which of the following is related to intensity of light in a photoelectric effect? A) Intensity of light is related to work function of the metal. B) Intensity of light is related to frequency of the light.

A 1.0 * 10^3-kilogram car travels at a constant speed of 20. meters per second around a horizontal circular track. The diameter of the track is 1.0 * 10^2 meters. The magnitude of the car's centripetal acceleration is (1) 0.20 m/s2 (3) 8.

Which of the following is true A) land heats less rapidly than water B) land heats more rapidly than water C) land reaches higher temperatures than water D) both b and c

What is the upper limit to the mass of a neutron star beyond which neutron degeneracy pressure is unable to withstand the force of gravity and the neutron star is crushed out of existence into a black hole?

What happened to the test charge when brought near another positive charge, and how did you use this fact to score a goal only using positive charges? Explain for both the practice charge and more difficult levels.

You get up in the morning, get dressed, eat breakfast, walk to the bus stop, and ride to school. List three different energy transformations that have taken place.

If you lived by the sea, what effect of the moon would you see? Describe the effect.