Physics Homework Solutions

Electromagnetic wave

What is the phase difference between vectors B and E of electromagnetic wave, if they reach their maximum and mimimum values at the same time?

Superposition of sound waves

Two speakers are driven by the same oscillator whose frequency is f. They are located a distance d from each other on a vertical pole. A man walks straight toward the lower speaker in a direction perpendicular to the pole, as shown in Figure P14.10. (Note the answers must be in all variables) (a) How many times will he hea ...continues

Diffraction grating

Unlight is incident on a diffraction grating that has 2 750lines/cm. The second-order spectrum over the visible range (400-700nm) is to be limited to 1.75 cm along a screen that is a distance L from the grating. What is the required value of L? answer in the back of book is 9.13 cm I confirmed that that 9.13 is the correct a ...continues

Electromagnetic Induction: Current in a rotating coil.

Consider a uniform, constant magnetic field pointing in the z-direction with a strength B_0. Put a square loop of wire with resistance R and side length l in the xy-plane at time t=o and spinning about the x-direction with a constant angular velocity omega. What is the current through the loop as a function of time?

Physics

(See attached file for full problem description)

Alternating current circuits: Phasor, resonance, power.

(See attached file for full problem description)

Can you please offer solutions to problems 24.68 and 24.70.

(See attached files for full problem descriptions)

Three problems on circuit analysis.

Please solve problems 26.60, 26.62, and 26.64. See attached file for full problem description.

Resistance in a Network, and Circuit, Induced emf

1. The Network in this picture is Rab = (27/17)Ω but I don’t know how to get that. (see diagram in attached file) 2. Derive an expression for the induced emf for a coil of N turns rotating with angular velocity ω in a uniform magnetic field directed perpendicular to the axis of rotation of the coil. Plot grap ...continues

Please provide solutions to problems 27.40, 27.62 and 27.64

Please solve and show solution to these problems, thank you.

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