Light travels at approximately \(3.0 \times 10^{8} \mathrm{~m} / \mathrm{s}\).

(a) How long does it take for a light pulse to cross an elevator \(2.0 \mathrm{~m}\) wide?

(b) How great an acceleration is necessary to make the pulse deviate from a straight-line path by \(1.0 \mathrm{~mm}\) ? Is it likely that this effect can be observed?

(c) If light is bent by the gravitational pull of an object, light should "fall" when traveling parallel to the surface of Earth. How far does a beam of light travel in \(0.0010 \mathrm{~s}\), and how much does it fall over the distance? Is it likely that this effect can be observed?