Concept explainers
The shock waves depicted below are produced by supersonic aircraft. Rank them from greatest to least based on the speed of the aircraft.
To rank: The shock waves produced by supersonic aircraft on the basis of their speed from greatest to least.
Answer to Problem 25A
Explanation of Solution
Introduction: When an aircraft crosses the sound barrier then it attains supersonic speed to create sonic waves.
Consider three shocking waves as shown below.
The bow waves or sonic waves produced by the speed of the supersonic aircraft, creates pressure at the background and this pressure increases the speed. Thus, helps it to move forward. Here, in the diagram, A has the highest speed because at the background circles drawn in the bow waves. The smaller circles it produces at the back of the aircraft, the faster will be its speed. As the speed increases then circles drawn in the bow waves increases.
Here, in C, speed is comparatively lesser than A, and consecutively; B is slowest in all bow waves.
Conclusion:
Therefore, ranking in terms of speed is A>C>B.
Chapter 25 Solutions
Conceptual Physics: The High School Physics Program
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