How long would it take a telephone signal to travel 3000 mile from coast to coast?

A telephone signal travels at nearly the speed of light, which is approximately 186,282 miles per second. To calculate the time it would take for a signal to travel 3,000 miles, you can use the formula: time = distance/speed. Therefore, it would take about 0.016 seconds (or 16 milliseconds) for a signal to cover that distance in ideal conditions, ignoring any delays from equipment or transmission methods.