Light is an electromagnetic radiation. It can travel through vacuum as well as medium. The speed of light is maximum in vacuum i.e. 3 × 10⁸ m/s. From experiments, scientists know that nothing can exceed the speed of the light i.e this speed of light is the upper limit and o particle or wave can travel with speed greater than this. Thus, a ray of visible light would have the greatest speed when observed by an astronaut.
The height of the tower and the distance from its base form a right angle triangle. Thus, tan(∅) = height / base tan(28.81) = height / 1,000 m height = 549.98 meters
