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Solving a problem in physics, section 33, paragraph 95

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95. A point mass m = 20 g performs damped oscillations whose initial amplitude A0 is 6 cm, the initial phase φ0 = 0, the damping factor δ = 1,6 s-1. As a result of this body of external periodic force established forced oscillations described by the equation x = 3cos (10πt - 0,75π), see. Found: 1) the equation of the damped oscillations; 2) Equation of external periodic force.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
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