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Why did they subtract 0.5? Where did get 2pi from?

Why did they subtract 0.5? Where did get 2pi from?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Why did they subtract 0.5? Where did get 2pi from?
So phase difference (radians) = Phate of X₂, ₂ bst wenn 0.005 0.018 1.25 R x radian T.75 + (-0.5) = 1.25 radians Amplitude of X₂ is twire X₁ je. 2X5.2 = 10.4 So, X ₂ = 10.4 pj|ht + 1.25). اما از exz X 2π
Transcribed Image Text:So phase difference (radians) = Phate of X₂, ₂ bst wenn 0.005 0.018 1.25 R x radian T.75 + (-0.5) = 1.25 radians Amplitude of X₂ is twire X₁ je. 2X5.2 = 10.4 So, X ₂ = 10.4 pj|ht + 1.25). اما از exz X 2π
6. A source of vibration begins abruptly and is represented by the equation: 8. X1 = 5.2 e j(oot - 0.5) Time delay Conued to where the phase is given in radians. A second source of vibration of the same frequency as the first, begins 5ms after the first and is twice as loud. Write down the equation for this second vibration, x2 in the same form as x₁ if both vibrations have a frequency of 55Hz.
Transcribed Image Text:6. A source of vibration begins abruptly and is represented by the equation: 8. X1 = 5.2 e j(oot - 0.5) Time delay Conued to where the phase is given in radians. A second source of vibration of the same frequency as the first, begins 5ms after the first and is twice as loud. Write down the equation for this second vibration, x2 in the same form as x₁ if both vibrations have a frequency of 55Hz.
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