Question

1. the sr - 71 \blackbird\ is one of the worlds fastest airplanes. it is capable of traveling at a cruising speed of mach 3, or three times the speed of sound. the speed of sound is approximately 7.67 × 10² miles per hour. what is mach 3 in miles per hour?

Explanation:

Step1: Analyze the relationship

Mach 3 is three times the speed of sound.

Step2: Calculate Mach 3

Given the speed of sound is approximately \(7.67\times10^{2}\) miles per hour. Then Mach 3 is \(3\times(7.67\times 10^{2})\) miles per hour.

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Answer:

\(2.301\times 10^{3}\) miles per hour.