Radius of earth = about 6.4*10^6 meters
circumference = 2 pi r
time = distance/speed = 2 pi r/343
Suppose at a concert a singers voice is radio broadcast all the way around the world before reaching the radio you hold to your ear . How long does this take . __ seconds
I don't understand thisss ! Help me !
2 answers
agrrrh, used sound in air not light
2 pi r / (3*10^8)
2 pi r / (3*10^8)
0 answers