Answer:
300,000,000 m/s
Step-by-step explanation:
The speed of light is a universal constant in a given medium. It remains constant irrespective of the speed of the source or the observer's inertial reference frame. All massless particles like photons travel at the speed of light.
Here the speed the of starship Enterprise does not matter. The speed of the photon of light will be 300,000,000 m/s.