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Chiana is stalking a fly of mass 0.10 g, but the fly gets caught in a spider's web. Chiana observes that the web vibrates predominately with a frequency of 3.0 Hz.
What is the value of the effective spring stiffness constant k for the web?
N/m
At what frequency would Chiana expect the web to vibrate if an insect of mass 0.53 g were trapped?
Hz
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.0 x 10^4 rev/min. Find the drill's angular acceleration
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The electric motor of a model train accelerates the train from rest to 0.540 m/s in 31.0 ms. Find the average power delivered to the train during its acceleration
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2 blocks are sliding to the right across a horizontal surface. In case A, the mass of each block is 3.0 kg. Derive an expression for the contact force and acceleration
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