On a 28°C summer day, you decide to go cliff diving with a friend. Your friend jumps first and you notice that it takes 2 seconds for you to hear them splash into the water below. How high is the cliff?
The speed of sound in dry air at 28°C is approximately 346 meters per second. Since it takes 2 seconds for you to hear the splash, we can use the equation distance = speed x time.
Distance = 346 m/s x 2 s = 692 meters
Therefore, the cliff is approximately 692 meters high.