Question

A turntable has a moment of inertia of 3.00 × 10−2 kg · m2 and rotates...

A turntable has a moment of inertia of 3.00 × 10−2 kg · m2 and rotates freely on a frictionless support at 25.0 rev / min. A 0.600 kg putty ball is dropped vertically onto the turntable and glued at a point 0.100 m from the center.

By what factor does the kinetic energy of the system change after the putty is dropped onto the turntable?

  TO.
0.91

  B.
1.00

  C.
0.83

  D.
1.50

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A turntable has a moment of inertia of 3.0 × 10−2 kg·m2 and spins freely on...
A turntable has a moment of inertia of 3.0 × 10−2 kg·m2 and spins freely on a frictionless bearing at 25 rev/min. A 0.60-kg ball of putty is dropped vertically on the turntable and sticks at a point 0.10 m from the center. By what factor does the kinetic energy of the system change after the putty is dropped onto the turntable? a. 1.0 b. 0.83 c. 1.5 d. 0.91
A turntable has moment of inertia 1 kg m2 and rotates with angular speed of 3...
A turntable has moment of inertia 1 kg m2 and rotates with angular speed of 3 rad/s. A small heavy mass (point particle) of mass 5 kg is placed on the turn table at 2 m from the axis of rotation of the turn table. What is the final rotational velocity of the system? Give your result in rad/s to three significant figures.
A turntable with a moment of inertia of 5.4 × 10−3 kg. m2 reaches a constant...
A turntable with a moment of inertia of 5.4 × 10−3 kg. m2 reaches a constant rotational speed of 45 rpm from rest in 6.30 seconds. a. Find the number of revolutions the turntable made during this time. b. Determine the rotational work done by the applied torque for increasing the angular speed from zero to 45 rpm. c. While rotating at a constant rotational speed of 45 rpm, a mouse of 32-g was kept 15 cm from the center....
A 55.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia...
A 55.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 420 kg · m2 and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionless vertical axle through its center. The woman then starts walking around the rim clockwise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth. (a) In what direction does the turntable rotate?...
A 65.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia...
A 65.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 460 kg · m2 and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionless vertical axle through its center. The woman then starts walking around the rim clockwise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth. (a) In what direction does the turntable rotate?...
A uniform cylindrical turntable of radius 1.90 m and mass 30 kg rotates counterclockwise in a...
A uniform cylindrical turntable of radius 1.90 m and mass 30 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 4π rad/s. The fixed turntable bearing is frictionless. A lump of clay of mass 2.25 kg and negligible size is dropped onto the turntable from a small distance above it and immediately sticks to the turntable at a point 1.80 m to the east of the axis. a.) Find the resulting angular speed of the clay...
An object with moment of inertia ?1 = 9.7 ? 10−4 ?? ∙ ?2 rotates at...
An object with moment of inertia ?1 = 9.7 ? 10−4 ?? ∙ ?2 rotates at a speed of 3.0 ???/?. A 20 ? mass with moment of inertia ?2 = 1.32 ? 10−6 ?? ∙ ?2 is dropped onto the rotating object at a distance of 5.0 ?? from the center of mass. What is the angular velocity of the combined object and mass after the drop?
An object with moment of inertia ?1 = 9.7 ? 10−4 ?? ∙ ?2 rotates at...
An object with moment of inertia ?1 = 9.7 ? 10−4 ?? ∙ ?2 rotates at a speed of 3.0 ???/?. A 20 ? mass with moment of inertia ?2 = 1.32 ? 10−6 ?? ∙ ?2 is dropped onto the rotating object at a distance of 5.0 ?? from the center of mass. What is the angular velocity of the combined object and mass after the drop? Please don't forget to state the combined mass after the drop!!!
A boy stands at the center of a turntable, which has a moment of inertia of...
A boy stands at the center of a turntable, which has a moment of inertia of 1.50 kg·m2 about an axis through its center. The boy's moment of inertia about the same axis, when he holds his arms in, is 1.10 kg·m2; when he sticks his arms straight out, his moment of inertia is 1.80 kg·m2. He and the turntable are initially rotating at a rate of 2.00 rad/s, with his arms extended.             a.         He pulls in his arms. What is...
A playground merry-go-round of radius R = 1.60 m has a moment of inertia I =...
A playground merry-go-round of radius R = 1.60 m has a moment of inertia I = 255 kg·m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. Facing the axle, a 25.0 kg child hops onto the merry-go-round and manages to sit down on its edge. What is the new angular speed of the merry-go-round?​