Select the statement that correctly describes how light travels? light can travel in a vacuum, and its speed is constant even if
the light source is moving. light can travel in a vacuum and willtravel slower if the light source is moving in the same direction. light can travel in a vacuum, and it travels faster if the light source is stationary. light travels only through a medium, it travels faster if the light source is stationary.
The first answer is W and Z, since they appear to be a period apart. Dont know the second question. I did what I could, hope someone can answer the second.
