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2. Refer to the diagram shown here (a side view, not to scale). Two blocks with masses m, and m, respectively, are connected via a massless thread over a pulley wheel. The wheel is a solid, uniform disk with mass m, outer radius R, and a frictionless axle. Initially you hold m, (and therefore the entire system) at rest in the position shown; m, is at rest on level ground. Then you release m,. The data: m,-7.16 kg m, 3.45 kg m, 2.63 kg R 5.10 cm H 27.4 cm g 9.80 m/s By what percentage does the tension force acting on m, change when you release m,? How fast, measured in rpm, is the wheel spinning when m reaches the surface? a. b. You may ignore air drag. (ground)

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