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    If you do 50.24 J of work to move a 7.4 kg chair 2.54 m across the floor at constant velocity, and you are pushing at an angle of 10.2o relative to the floor, what is the coefficient of kinetic friction between the floor and the chair?

    If you do 348 J of work to move a 18.3 kg chair 5.05 m across the floor at constant velocity, and you are pushing at an angle of 23.2o relative to the floor, what is the coefficient of kinetic friction between the floor and the chair?

    If you do 488.1 J of work to move a 18.1 kg chair 6.43 m across the floor at constant velocity, and you are pushing at an angle of 9.3o relative to the floor, what is the coefficient of kinetic friction between the floor and the chair?

    If you do 29.27 J of work to move a 13.2 kg chair 1.29 m across the floor at constant velocity, and you are pushing at an angle of 10.4o relative to the floor, what is the coefficient of kinetic friction between the floor and the chair?

    If you do 674.5 J of work to move a 12 kg chair 6.05 m across the floor at constant velocity, and you are pushing at an angle of 20.5o relative to the floor, what is the coefficient of kinetic friction between the floor and the chair?

    If you do 94.79 J of work to move a 9.7 kg chair 1.48 m across the floor at constant velocity, and you are pushing at an angle of 34.6o relative to the floor, what is the coefficient of kinetic friction between the floor and the chair?