The speed of sound depends on the material the sound is passing through.

The speed of sound depends on the material the sound is passing through.

LANGUAGE:  C++

CHALLENGE:

4.18:The Speed of Sound
The speed of sound depends on the material the sound is passing through.
Below is the approximate speed of sound (in feet per second) for air, water and steel:
air: 1,100 feet per second
water: 4,900 feet per second
steel: 16,400 feet per second

Write a program that displays a menu allowing the user to select air, water, or steel.
After the user has made a selection, he or she should be asked to enter the distance a sound wave will travel in the selected medium.
The program will then display the amount of time it will take.

Menu. The menu should look exactly like this:
Select a medium:
1. Air
2. Water
3. Steel
Enter your choice:

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