All Dynamics Solutions

All Dynamics Solutions - Problem D4 Solution Problem D6...

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Problem D4 Solution
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Problem D6 Solution You are purifying samples of neurons by placing them in a centrifuge. Test tube 1 is placed in the outer ring of the centrifuge at a distance R 1 = 15 cm from the center of rotation, while test tube 2 is placed the inner ring, R 2 = 13 cm from the center of rotation. The radius of a test tube is r = 0.5 cm The centrifuge accelerates at constant angular acceleration and takes 10 second to reach a maximum angular velocity of 5000 rpm (revolutions/minute). It then maintains a constant angular velocity of 5000 rpm. a) How long does it take for the centrifuge to reach an angular velocity of 3500 rpm? b) What is the normal and tangential acceleration of test tube 1 when ω = 3500 rpm? c) What is the normal and tangential acceleration acting on neuron A when the centrifuge reaches constant angular velocity? d) If a neuron has mass of 10 μ g, what is the normal force acting on a neuron A when the centrifuge reaches constant angular velocity?
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All Dynamics Solutions - Problem D4 Solution Problem D6...

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