Concept explainers
What physics principle is used by Laura when she pumps in rhythm with the natural frequency of the swing?
The principle which is used by Laura when pumps in rhythm with the natural frequency of the wing.
Answer to Problem 41A
Interference is the principle which is used by Laura when pumps in rhythm with the natural frequency of the wing.
Explanation of Solution
Introduction:
Waves can be made to interfere. There can be either constructive interference or destructive interference between two waves.
When the crests of one wave overlaps with crests of another wave, then there is constructive interference between two waves and there is increase in amplitude.
When the crests of one wave overlaps with troughs of another wave, then there is destructive interference between two waves and there is decrease in amplitude.
Hence when Laura pumps in rhythm with the natural frequency of the wing, means there is increase in amplitude which happens due to constructive interference. So, interference is the principle which is used by Laura when pumps in rhythm with the natural frequency of the wing.
Conclusion:
Thus, interference is the principle which is used by Laura when pumps in rhythm with the natural frequency of the wing.
Chapter 26 Solutions
Conceptual Physics: The High School Physics Program
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