Radio signals travel at a rate 3 × 108 of meters per second. How many seconds would it take for a radio signal to travel from a satellite to the surface of the Earth if the satellite is orbiting at a height of 3.6 × 107 meters?

a• 8.3 seconds

b• 1.2 × 10–1 seconds

c• 1.08 × 1016 seconds

d• 10.8 × 1015 seconds

Question

Radio signals travel at a rate 3 × 108 of meters per second. How many seconds would it take for a radio signal to travel from a satellite to the surface of the Earth if the satellite is orbiting at a height of 3.6 × 107 meters?

a•	 8.3 seconds 

b•	 1.2 × 10–1 seconds 

c•	 1.08 × 1016 seconds 

d•	 10.8 × 1015 seconds

rulnick · Answer

3.6x10^7 divided by 3x10^8 = 1.2x10^(-1) seconds, so (b).