- Astrophysics and Atmospheric Physics
- Solar System
radio signal from Luna to Terra
The satellite Luna is located 3.78 x 10^5 km from the planet Terra. How much time in seconds, does it take for a radio signal to travel from Luna to Terra?
a. 794 s
b. 1.26 s
c. 1.26 x 10 to the power of -3 s
d. 0.794 s
e 1.13 x 10 to the power of 17 s
The radio signal travels with the speed of light c = 300,000 km per ...
It shows how to find the time it takes for a radio signal to travel from Luna to Terra.