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A needle-nosed projectile passes over you on a military testing field at a speed of 1000 m/s (Fig. P9.14). You know that it has an elevation of 1000 m where T =10°C. How long after it passes overhead will you hear its sound? How far away will it be? Calculate its Mach number.

A needle-nosed projectile passes over you on a military testing field at a speed of 1000 m/s (Fig. P9.14). You know that it has an elevation of 1000 m where T =10°C. How long after it passes overhead will you hear its sound? How far away will it be? Calculate its Mach number.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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(Compressible Flow: Speed of sound) A needle-nosed projectile passes over you on a military testing field at a speed of 1000 m/s (Fig. P9.14). You know that it has an elevation of 1000 m where T =10°C. How long after it passes overhead will you hear its sound? How far away will it be? Calculate its Mach number. 1000 m/s 1000 m Fig. P9.14
Transcribed Image Text:(Compressible Flow: Speed of sound) A needle-nosed projectile passes over you on a military testing field at a speed of 1000 m/s (Fig. P9.14). You know that it has an elevation of 1000 m where T =10°C. How long after it passes overhead will you hear its sound? How far away will it be? Calculate its Mach number. 1000 m/s 1000 m Fig. P9.14
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