Concept explainers
a.
To rewrite: The equation in terms of
a.
Answer to Problem 73E
Explanation of Solution
Given:The Mach number M of a supersonic airplane is the ratio of its speed to the speed of sound. When an airplane travels faster than the speed of sound, the sound waves a cone behind the airplane. The Mach number is related to the apex angle
The relation of apex angle and Mach number is
Now, change the formula to half-angle to complete angle in form of
b.
To find: The angle
b.
Answer to Problem 73E
Explanation of Solution
Given: The Mach number M of a supersonic airplane is the ratio of its speed to the speed of sound. When an airplane travels faster than the speed of sound, the sound waves a cone behind the airplane. The Mach number is related to the apex angle
If the Mach number of 1.
In part (a) got an equation,
Put
c.
To find: The angle
c.
Answer to Problem 73E
Explanation of Solution
Given: The Mach number M of a supersonic airplane is the ratio of its speed to the speed of sound. When an airplane travels faster than the speed of sound, the sound waves a cone behind the airplane. The Mach number is related to the apex angle
If the Mach number of 4.5.
In part (a) got an equation,
Put
d.
To find: The speed of an object with Mach numbers 1 and 4.5.
d.
Answer to Problem 73E
For
For
Explanation of Solution
Given: The Mach number M of a supersonic airplane is the ratio of its speed to the speed of sound. When an airplane travels faster than the speed of sound, the sound waves a cone behind the airplane. The Mach number is related to the apex angle
Let speed of airplane be
The Mach number M of a supersonic airplane is the ratio of its speed to the speed of sound.
For
For
Chapter 5 Solutions
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