Question

1. Two astronauts are 2.00 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. The time it takes for sound waves to travel at 354 m/s through the air between the astronauts equals the time it takes for the electromagnetic waves to travel to the earth. How far away from the earth is the spaceship?

Answer 1

Answer:

$1.6949*10^6 m$

Explanation:

Our values are

$d=2m$

$v=354m/s$

We can find the time through

$t=\frac{d}{v}$

$t=\frac{2}{354}$

$t=5.64*10^{-3}s$

The expression for the distance between the Earth and the spaceship is as follow:

$d=ct$

Where c is Light speed, and t our previous time.

$d= (3*10^8)(5.64*10^{-3})$

$d= 1.6949*10^6m$

Therefore the distance between the Eath and the Spaceship is $1.6949*10^6$ m