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power

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 79P: A device called an insolation meter is used to measure the intensity of sunlight. It has an area of...

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Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

Calculate the intensity of a wave propagation with power of 20 KW. the area of the cross section of the surface is 35X 10 M2. If the power had been changed in sequences (30 KW, 40 KW, 45 KW) on same area represent by figures the relation between intensity of wave with all points of powers?

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