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When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases uniformly from 10.0 rad/s to 6.30 rad/s in 5.00 s.
1. What is the magnitude of the angular acceleration of the fan?
2. During what angle (in degrees) does it turn while it is slowing down during the 5.00 s?
3. If its angular acceleration does not change, how long after it is turned off does it take the fan to stop.
Your friend is trapped in a castle tower. You want to send her a message by attaching it to an arrow and shooting the arrow into a window in the tower. Determine how high above the ground is the window
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Two separated weights, the first at 4.0 kilogram, the second at 6.0 kilogram, are connected by a cord running through them and on over the side of a horizontal table, Obtain the acceleration and tension in the cord
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a proton of atomic mass 1u with a speed of 750 m/s collides elastically with another proton at rest. What is the final speed of the target proton after the collision
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A landing craft with mass 12,500 kg is in a circular orbit5.75*105 m above the surface of a planet. Theperiod of the orbit is 6000 s. Theastronauts in the lander measure the diameter of the planet to be9.60*106 m.
What is modify in frequency ff - fi
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as a 2.0 kg object moves along the x axis the only force acting on it is given by fx 3x squared 2x newtons where x is
you are standing on a platform and you throw a 5kg ball with a speed of 10 m/s at an angle of 30 degrees with respect to the horizontal. find the horizontal distance the bal travels before it hits the ground
A flat circular coil with 102 turns, a radius of 3.92 10-2 m, Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current
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