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Get Full Access to College Physics For Ap® Courses - 1 Edition - Chapter 23 - Problem 1
Get Full Access to College Physics For Ap® Courses - 1 Edition - Chapter 23 - Problem 1

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# How do the multiple-loop coils and iron ring in the version of Faradays apparatus shown ISBN: 9781938168932 372

## Solution for problem 1 Chapter 23

College Physics for AP® Courses | 1st Edition

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Problem 1

How do the multiple-loop coils and iron ring in the version of Faradays apparatus shown in Figure 23.3 enhance the observation of induced emf?

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Forces of Friction - To slide one such surface across another requires a force larger enough to overcome the resistance of microscopic hills and valley bumping together. This is the origin of the force we call friction - When an object is in motion on a surface or through a viscous medium, there will be a resistance to the motion. - This is due to the interactions between the object and its environment. o This resistance is called the force of friction. - Force that slows down or stops motion. - Force that helps to start motion. - Problem-Solving Hints o Conceptualize  Draw a diagram  Choose a convenient coordinate system for each object o Categorize  Is the model a particle in equilibrium  If so, F = 0  Is the model a particle under a net force  If so, = ma Kinetic friction - Is the friction encounter when surfaces slide against one another with a finite relative speed - Fk acts to oppose the sliding motion at the point of contact between the surfaces - The kinetic frictional force is also independent of the relative speed of the surfaces, and of their area of contact - The force of kinetic friction is proportional to the magnitude of the normal force, N o Fk = µkN - µk o coefficient of kinetic friction o always positive

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##### ISBN: 9781938168932

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