The horizontal component of the force that the screw exerts on the bracket.

Question

An electromagnetic wave is traveling through vacuum in the positive x direction. Its electric field vector is given by E=E0sin⁡(kx−ωt)j^,where j^ is the unit vector in the y direction. If B0 is the amplitude of the magnetic field vector, find the complete expression for the magnetic field vector B→ of the wave. What is the Poynting vector S(x,t), that is, the power per unit area associated with the electromagnetic wave described in the problem introduction? Give your answer in terms of some or all of the variables E0, B0, k, x, ω, t, and μ0. Specify the direction of the Poynting vector using the unit vectors i^, j^, and k^ as appropriate. Please explain all steps

Answer 1

Question

Chapter 12, Problem 39AP

(a)

To determine

The horizontal component of the force that the screw exerts on the bracket.

(b)

To determine

The rate of change of the force exerted by the screw.

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An electromagnetic wave is traveling through vacuum in the positive x direction. Its electric field vector is given by E=E0sin⁡(kx−ωt)j^,where j^ is the unit vector in the y direction. If B0 is the amplitude of the magnetic field vector, find the complete expression for the magnetic field vector B→ of the wave. What is the Poynting vector S(x,t), that is, the power per unit area associated with the electromagnetic wave described in the problem introduction? Give your answer in terms of some or all of the variables E0, B0, k, x, ω, t, and μ0. Specify the direction of the Poynting vector using the unit vectors i^, j^, and k^ as appropriate. Please explain all steps

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