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1. A lever is used to lift a boulder. The fulcrum is placed 2.3 m away from the end at which you exert a downward

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1. A lever is used to lift a boulder. The fulcrum is placed 2.3 m away from the end at which you exert a downward force, producing a torque with a magnitude of 4.8 x 10^2 Nom. If the angle between the force and the lever is 81.0, what is the magnitude of the applied force? Assume that the lever is massless

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