Q: 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
(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 full answer

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