Which statement is correct?
a. light, in a vacuum, travels at the same speed even if the light source is moving.

b. light, given off from a moving source will travel faster in a vacuum.

c. light, given off from a moving source will move faster in air.

d. light, in a vacuum, travels slower if the light source is moving.

In this experiment, you will use a track, a toy car, and some washers to explore newton’s first two laws of motion. you will make observations and collect data regarding the motion of these objects. in the space below, write a general scientific question that you will answer by doing this experiment.

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle