Question

Approximately how long would it take for a telephone signal to travel 2500 mi? (Telephone signals travel at about the speed of light.) in_____s

Answer 1

0.0135 s

Step-by-step explanation

We know that telephone signals travel about the speed of light, which is 1.86 x 10⁵ miles per second. We want to know how long would it take to travel 2500 mi,

`v=(d)/(t)`

Solving for t,

`t=(d)/(v)`

Substitute the known values and solve to find t,

`t=(2500mi)/(1.85\cdot10^5mi/s)\approx0.0135s`

Hence, it would take 0.0135 seconds for the signal to travel 2500 miles.