Answered: Figure P22.31

Science

Physics

Figure P22.31

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter9: Energy In Nonisolated Systems

Section: Chapter Questions

Problem 49PQ

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

A small block of mass m ancd charge Q is placed on an insulated, frictionless, inclined plane of angle Ɵ as in Figure P22.31 An electric field is applied parallel to the incline.

(a) Find an expression for the magnitude of the electric field that enables the block to remain at rest.

(b) If m = 5.40g, Q=-7.00 µC, and Ɵ = 25.0˚, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline

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