An out-of-control alien spacecraft is diving into a star at a speed of 1.0 X 10^8 m/s. At what speed, relative to the space-
craft, is the starlight approaching?

The answer is b hope this

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then   

The independent variable in this experiment is the angle at which the light from the ray box strikes the mirror.hope this .

Well it depends on the object or substance