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An instruments needle indicator has a rotary inertia of 1 4 x 106 kg m2 It is attached to a torsion spring whose stiffness is 1 x 10-5 N m/rad and a viscous

An instrument's needle indicator has a rotary inertia of 1.4 x 106 kg  m2. It is attached to a torsion spring whose stiffness is 1.1 x 10-5 N m/rad and a viscous damper of coefficient c. What is the value of c needed so that the needle is critically damped?

May 16 2020 View more View Less

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