**Problem 7: Mechanics of a Turntable**You are tasked with designing a turntable with a diameter of 55.8 cm. The objective is for this turntable to possess a kinetic energy of 0.250 J when operating at a speed of 45.0 revolutions per minute (rev/min).a. Calculate the required moment of inertia for the turntable.b. If the turntable is constructed as a uniform solid disk, determine the mass it should have.

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7. You are asked to design a turntable that is 55.8 cm in diameter that has a kinetic energy of 0.250 J when it is turning at 45.0 rev/min. a. What must its moment of inertia be? b. If you make the turntable in the shape of a uniform solid disk, what mass would it have?

7. You are asked to design a turntable that is 55.8 cm in diameter that has a kinetic energy of 0.250 J when it is turning at 45.0 rev/min. a. What must its moment of inertia be? b. If you make the turntable in the shape of a uniform solid disk, what mass would it have?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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**Problem 7: Mechanics of a Turntable**

You are tasked with designing a turntable with a diameter of 55.8 cm. The objective is for this turntable to possess a kinetic energy of 0.250 J when operating at a speed of 45.0 revolutions per minute (rev/min).

a. Calculate the required moment of inertia for the turntable.

b. If the turntable is constructed as a uniform solid disk, determine the mass it should have.

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