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A homeowner wants to raise one end of an upright piano to place coasters under the wheels. It takes 1.95 x 103 N to raise one end of the piano, but the maximum force the homeowner can apply is 4.5 x 102 N. The accomplish the task, she places a fulcrum 0.3 m from the piano and uses a strong board as a first-class lever to raise the piano.
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