Review I ConstantsEnter your answer with a different unit type. Review a list of acceptable units.A circular ring with area 4.45 cm² is carrying a current of 13.5 A.The ring, initially at rest, is immersed in a region of uniformmagnetic field given byB = (1.35 x 10-2 T)(12i +3j – 4k). The ring is positionedinitially such that its magnetic moment orientation is given byji; = µ(-0.8i + 0.6j), where µ is the (positive) magnitude ofthe magnetic moment.As expected for the object starting from the rest, the kinetic energy is equal to the change in potential energy with opposite sign.Part E(a) Find the initial magnetic torque on the ring.Find the ring's angular speed when it is in the second orientation.(b) The ring (which is free to rotate around one diameter) isreleased and turns through an angle of 90.0° , at which point itsExpress your answer in radians per second.• View Available Hint(s)magnetic moment orientation is given by f = -µk. Determinethe decrease in potential energy.W = 87.5 rad/s(c) If the moment of inertia of the ring about a diameteris 2.50 x 10-? kg · m² , determine the angular speed of the ringas it passes through the second position.SubmitPrevious AnswersCorrectCorrect answer is shown. Your answer 87.49 rad/s was either rounded differently or used a different number of significant figures than required forthis part.The ring rotates rather fast because of the small moment of inertia.EVALUATEPart FIf the ring were free to rotate around any diameter, in what direction would the magnetic moment point when the ring is in a state of stable equilibrium? Enterthe unit vector of that direction of the magnetic moment.Express your answer in terms of the unit vectors i, j, and k.View Available Hint(s)?Submit1|ミ

Answered: Image /qna-images/answer/59f3371b-2f26-43a0-91ee-e46e04a6576c.jpg

A circular ring with area 4.45 cm? is carrying a current of 13.5 A. The ring, initially at rest, is immersed in a region of uniform magnetic field given by B = (1.35 x 10-2 T)(12î +33 – 4Ê). The ring is positioned initially such that its magnetic moment orientation is given by i, = µ(-0.8î + 0.6j), where u is the (positive) magnitude of the magnetic moment. (a) Find the initial magnetic torque on the ring. (b) The ring (which is free to rotate around one diameter) is released and turns through an angle of 90.0° , at which point its magnetic moment orientation is given by i, =-µk. Determine the decrease in potential energy. (c) If the moment of inertia of the ring about a diameter is 2.50 x 10-7 kg m² , determine the angular speed of the ring as it passes through the second position.

A circular ring with area 4.45 cm? is carrying a current of 13.5 A. The ring, initially at rest, is immersed in a region of uniform magnetic field given by B = (1.35 x 10-2 T)(12î +33 – 4Ê). The ring is positioned initially such that its magnetic moment orientation is given by i, = µ(-0.8î + 0.6j), where u is the (positive) magnitude of the magnetic moment. (a) Find the initial magnetic torque on the ring. (b) The ring (which is free to rotate around one diameter) is released and turns through an angle of 90.0° , at which point its magnetic moment orientation is given by i, =-µk. Determine the decrease in potential energy. (c) If the moment of inertia of the ring about a diameter is 2.50 x 10-7 kg m² , determine the angular speed of the ring as it passes through the second position.

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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PLEASE ONLY ANSWER A, NO NEED FOR B.