If an atom gains electrons, it becomes a

A. neutral atom.

B. negatively charged ion.

C. neutral ion.

D. negatively charged atom.

Which of these is the best method to measure the distance to a star? calculate the variations in the position of the star due to movement of Earth in its orbit measure the red shift of emitted light and use it in calculations use doppler effect to

The fact that the Voyager spacecraft continues to travel out of the solar system, even though its rockets have no fuel, is an example of

Albert is on earth and measures the speed of light from the sun as 3 e8 m/s. he then gets in a space ship and speeds toward the sun at 1 x e8 m/s. he will then measure the speed of light as

Which best explains how thermal energy is transferred when someone holds a hand above a fire? It is transferred by conduction and radiation. It is transferred by only convection. It is transferred by only conduction.

Does increased velocity on an object result in a positive acceleration

Which of the following statements are true of absolute temperature? Check all that apply. Group of answer choices Absolute temperature is a measure of the motions of molecules in a gas.

What happens to a fuse to stop the flow of charges through it?

What is tidal power?

What is Newton's Second Law of Motion?

Water is known as the "universal solvent." This is due to -