Question

A plane is traveling at Mach 0.950 through air at a temperature of 0ºC. What is the plane's speed? (Speed of sound at 0ºC is 331 m/s.)

1) 314 m/s
2) 331 m/s
3) 348 m/s
4) 353 m/s
5) Mach number is undefined at 0ºC.

Answer 1

The plane's speed is approximately 900 km/h or 559 mph.

Step-by-step explanation: