Recent content by wku_tops

  1. W

    F’r=50 Nsin 23.53F’r=14.07 NSolving Fr with Law of Sines

    Basically, i just need to now how autocad computed one of the angles in the diagram to be 13 degrees.
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    F’r=50 Nsin 23.53F’r=14.07 NSolving Fr with Law of Sines

    Please look at this pic for the problem. http://thumb5.webshots.com/t/57/757/4/82/60/2732482600078932085VPLQzD_th.jpg I have drawn the freebody diagrams correctly. http://thumb5.webshots.com/t/53/453/3/64/60/2611364600078932085NMvdfG_th.jpg...
  3. W

    Rotation Dynamics mastering physics 10.32

    figured that out: (1950)*(5*2pi) Now I need to calculate the average power. power=T_z*w_z =1950 Nm *53.9 rads/s. mastering physics says this is incorrect. Any ideas?
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    Rotation Dynamics mastering physics 10.32

    An airplane propeller is 2.08 m in length (from tip to tip) and has a mass of 117 kg. When the airplane's engine is first started, it applies a constant torque of 1950 Nm to the propeller, which starts from rest. How much work in joules is being done after 5 revolutions? This is what I...
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    Rotation of Rigid Bodies- mastering physics 9.72

    Is the second shaft rotating twice as fast since its on a belt half the diameter of the first?
  6. W

    Rotation of Rigid Bodies- mastering physics 9.72

    The motor of a table saw is rotating at 3450 rev/min. A pulley attached to the motor shaft drives a second pulley of half the diameter by means of a V-belt. A circular saw blade of diameter 0.208 m is mounted on the same rotating shaft as the second pulley. PART A: The operator is careless and...
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