Physics
Oscillations Mechanical Waves
The front of her sleeper wet from teething, a baby

The front of her sleeper wet from teething, a baby rejoices in the day by crowing and

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The front of her sleeper wet from teething, a baby rejoices in the day by crowing and bouncing up and down in her crib. Her mass is 12.5 kg, and the crib mattress can be modeled as a light spring with force constant 4.30 kN/m
(a) The baby soon learns to bounce with maximum amplitude and minimum effort by bending her knees at what frequency?
(b) She learns to use the mattress as a trampoline—losing contact with it for part of each cycle—when her amplitude exceeds what value?

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a b For resonance her frequency must match fo 000 1 K143010 Nm 27 2zVm 2...View the full answer

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Physics for Scientists and Engineers A Strategic Approach with Modern Physics

ISBN: 978-0133942651

4th edition

Authors: Randall D. Knight

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Question Posted: Jan 09, 2010 12:48 AM

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