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A circular merry-go-round has a child standing at its
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A small rubber wheel is used to drive a large pottery wheel.
A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. The small wheel has a radius of 2.2 cm and accelerates at the rate of 6.7 ra… read more
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Four forces are acting on a disk as shown in the Figure 1.
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A disk is rotating at a constant angular velocity ω = 10.0
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3. A flywheel (A) with a mass of 100 kg and radius of gyration
A flywheel (A) with a mass of 100 kg and radius of gyration 1200 mm rotates at 150 revs min–1 (clockwise). The kinetic energy of this flywheel is to be reduced by 20% by impacting it with a second fly… read more
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a 5 N force produces work of 30 J by displacing some object
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A circular disk is spinning with a constant angular acceleration.
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Q1 a wheel starts at rest and has a constant angular acc.
Q1 a wheel starts at rest and has a constant angular acc. If it reaches an angular vel of 24 rads/sec in 6 sec, find the angular acc. ALSO find the angular displacement in this time. Q2 For a roller c… read more
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A lift is raised by a cable on a 1.0m diameter pulley-wheel.
A lift is raised by a cable on a 1.0m diameter pulley-wheel. Assuming that the pulley-wheel starts from rest and accelerates with a uniform rate of 0.3 rad/s^2, calculate: - a) The speed of the lift i… read more
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The drawing shows a copper wire (negligible resistance) bent
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A flywheel in the form of a heavy circular disk of diameter ...
A flywheel in the form of a heavy circular disk of diameter 0.600 meters and mass 200 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1000 revolu… read more
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Two clocks are synchronized, and then one is put in a ...
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A 1200-kg car turns left around a curve with a radius of ...
A 1200-kg car turns left around a curve with a radius of 130m at a speed of 22 m/s. What is the cars angular momentum around the center of the curve (magnitude and direction)? A 7 –kg bowling ball who… read more
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A 22-kg block of iron drops out of the back of a pickup ...
A 22-kg block of iron drops out of the back of a pickup trick traveling at 55 mi/h. The block slides on the road for 150 m before coming to rest. By roughly how much has the temperature of the iron in… read more
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Question 1. During a tennis serve, a racket is given an
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Question 1.A baton twirler throws a spinning baton directly
Question 1.A baton twirler throws a spinning baton directly upward. As it goes up and returns to the twirler's hand, the baton turns through three revolutions. Ignoring air resistance and assuming tha… read more
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Two pulleys, 50cm and 30cm in diameter, respectively, are ...
Two pulleys, 50cm and 30cm in diameter, respectively, are connected by a belt. The larger pulley makes 12 revolutions per minute. Find the angular speed of the smaller pulley, in radians per second. O… read more
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