Answered: An electric turntable 0.790 m in…

An electric turntable 0.790 m in diameter is rotating about a fixed axis with an initial angular velocity of 0.230 rev/s. The angular acceleration is 0.913 rev/s².

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 91AP: Consider an electron rotating in a circular orbit of radius r. Show that the magnitudes of the...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

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A) compute the angular velocity after a time of 0.205 s B) through how many revolutions has the blade turned in this time interval? C) what is the tangential speed of a point on the tip of the blade at time t = 0.205 s? D) what is the magnitude of the resultant acceleration of a point on the top of the blade at time t=0.205 s?

An electric turntable 0.790 m in diameter is rotating about a fixed
axis with an initial angular velocity of 0.230 rev/s. The angular
acceleration is 0.913 rev/s².

Definition Definition Rate of change of angular displacement. Angular velocity indicates how fast an object is rotating. It is a vector quantity and has both magnitude and direction. The magnitude of angular velocity is represented by the length of the vector and the direction of angular velocity is represented by the right-hand thumb rule. It is generally represented by ω.

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