Find the constant angular acceleration of the centrifuge
A centrifuge in a medical laboratory rotates at an angular speed of 3,900 rpm. When switched off, it rotates 65 times before coming to rest. Find the constant angular acceleration of the centrifuge.
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A 3000 pound car crashes into a concrete jersey barrier moving 3 sections (totaling 12,000 pounds) laterally 24 inches. How fast was the car going on impact?
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An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at. It then oscillates with a period of 1.5 and a maximum speed of 32. What is the amplitude of the oscillation?
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Jack and Jill ran up the hill at 3.4 m/s . The horizontal component of Jill's velocity vector was 2.3 m/s.
A spring whose stiffness is 1140 N/m has a relaxed length of 0.42 m. If the length of the spring changes from 0.27 m to 0.83 m, what is the change in the potential energy of the spring?
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