Understanding the Concepts

* Mach Number: Mach number represents the ratio of an object's speed to the speed of sound in the surrounding medium.

* Speed of Sound: The speed of sound in air depends on the temperature. At 0°C (32°F), the speed of sound is approximately 331.5 meters per second (1,087 feet per second).

Calculation

1. Speed of Sound: You already know the speed of sound at 0°C is 331.5 m/s.

2. Plane's Speed: Since the plane is traveling at Mach 0.92, its speed is 0.92 times the speed of sound:

Speed = Mach Number * Speed of Sound

Speed = 0.92 * 331.5 m/s

Speed ≈ 304.98 m/s

Therefore, the plane is traveling at approximately 304.98 meters per second.