51. B SSM A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric cars. The gasoline burned in a 300-mile trip in a typical midsize car produces about 1.2 × 109 J of energy. How fast would a 13-kg flywheel with a radius of o.30 m have to rotate to store this much energy? Give your answer in rev/min.

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Chapter11: Angular Momentum
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Problem 89AP: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis...
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51. O SSM A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center.
Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are
being considered as a possible alternative to batteries in electric cars. The gasoline burned in a 300-mile
trip in a typical midsize car produces about 1.2 × 109 J of energy. How fast would a 13-kg flywheel with a
radius of o.30 m have to rotate to store this much energy? Give your answer in rev/min.
Transcribed Image Text:51. O SSM A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric cars. The gasoline burned in a 300-mile trip in a typical midsize car produces about 1.2 × 109 J of energy. How fast would a 13-kg flywheel with a radius of o.30 m have to rotate to store this much energy? Give your answer in rev/min.
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