Elastic collision where kinetic energy is split evenly after the elastic collision problem.

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?