Homework Help: physic

Posted by yumina on Sunday, March 27, 2011 at 3:48am.

How long will a radio wave, with a wave length of 200 m takes to travel to and for the moon from the earth? (Distance of moon from earth = 3.9 x 108 m)

physic - Damon, Sunday, March 27, 2011 at 3:57am
speed of electromagnetic wave is about 3*10^8 m/s
distance = 2 *3.9*10^8 m

time = distance/speed
= 7.8*10^8/3*10^8
=7.8/3 seconds

Answer this Question

Related Questions

Chemistry - If the distance from the Earth to the moon is 3.84 x 105 km. How ...
physics - Help me with this problem i do not get it? A light wave can travel ...
physics - a longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel ...
physics - a longitudinal wave with a frequency of 3.0 Hz takes 1.7 s to travel ...
Algebra 2 - The frequency of a radio wave is inversely proportional to the ...
chemistry - how long would it take a radio wave with a frequency of 7.25 x 10to ...
sciences - a radio wave travels 186,000 miles per second. how many kilometers ...
earth - how long would it take a radio wave with a frequency of 4.3 X10 to the ...
physics - You generate a wave in a spring, stretched out on the floor, by ...
science - How long would it take a radio wave with a frequency of 5.1 × ...

For Further Reading

First Name:
School Subject:
Answer: