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University Physics with Modern Physics with Mastering Physics (11th Edition)

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PHY133 Angular Momentum PHY133 - Classical Physics I Laboratory Conservation of Angular Momentum In this experiment, we study torque, moment of inertia, and angular momentum conservation with a rotating platform. Equipment 1. 1 rotating platform with photogate, 2. 1 pulley with clamp, 3. 1 iron disk with handle, 4. 1 interface box, 5. 1 computer with timing program, 6. small masses, 7. vernier caliper. Method Observing the angular acceleration of an object, the rotating platform, under the influence of an external torque will enable us to measure the moment of inertia of the object using the equation τ ext = I α , where τ ext is the net external torque, α is the angular acceleration, and I is the moment of inertia. After the moment of inertia is determined, conservation of angular momentum will be investigated by dropping a mass onto the rotating platform, and measuring the angular velocity ϖ , before ( ϖ i ) and after ( ϖ f ) the "drop." The equation I i ϖ i = I f ϖ f is an expression of the conservation of angular momentum.
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