A drum, when rotating at 939 rev/min, has a kinetic energy of 0.56MJ. Find the moment of inertia

Q: A thin, 200 gg disk with a diameter of 8.00 cmcm rotates about an axis through its center with 0.15…

A: Mass, m = 200 g = 0.2 kg Diameter, d = 8 cm = 0.08 m Radius, r = d/2 = 0.04 m Kinetic energy, K =…

Q: A constant torque of 25.0 N.m is applied to a grindstone whose moment of inertia is 0.130 kg.m2.…

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Q: A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its…

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Q: 29.) Similar to linear kinetic energy, rotational kinetic energy depends on the moment of inertia I…

A: The rotational KE is given by K=12Iω2 If I'=21Iω'=0.2ω Then the new KE becomes…

Q: 500 J of work is used to decrease the angular velocity of a disk from 65 rad/s to 52 rad/s. What is…

A: Given, Energy KE = 500 J Initial angular velocity of disk ω0=65 rad/s Final angular velocity of disk…

Q: A 17.5 kg thin spherical shell with radius 1.64 m, is rotating at 152 rev/min. It must be brought to…

A: Given data The mass of the thin spherical shell is M = 17.5 kg The radius of the shell is R = 1.64 m…

Q: A solid sphere with mass m and radius r is rolling in a horizontal plane with vcm. It is attached to…

A: The expression for the required kinetic energy is,

Q: Two wheels of moment of inertia 9.8 kg.nf and 7.8 kg.nf are set in rotation with angular speed 2.9…

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Q: A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its…

A: given that,Energy E = Mass of flywheel m = 34.8 kg Radius of flywheel R = 0.577 m, now we find the…