What is the amplitude of the magnetic field?—| ΑΣΦBo =SubmitRequest AnswerPart DWhat is the intensity of the wave?15 ΑΣΦI=SubmitRequest Answerw*****??TW/m² An electromagnetic wave with frequency 65.0 Hztravels in an insulating magnetic material that hasdielectric constant 3.64 and relative permeability 5.18at this frequency. The electric field has amplitude7.20 × 10-³ V/m.Part AWhat is the speed of propagation of the wave?17 ΑΣΦV=SubmitRequest AnswerPart BWhat is the wavelength of the wave?ΠΙ ΑΣΦX =SubmitRequest Answer??m/sm

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Microphones are used to convert sound vibrations to electrical signals. In one kind of microphone, sound waves move a coil of wire up and down in a magnetic field, as shown in (Figure 1). The coil shown has a diameter of 1.6 cm and has 100 turns; the 0.010 T magnetic field points radially out from the north pole to the south. Figure S N Wire coil 1 of 1 Part A If the microphone's emf at some instant is 10 mV, what is the speed of the coil? Express your answer with the appropriate units. V = Value Submit μÃ Provide Feedback Request Answer Units www ?
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Part A You've recently read about a chemical laser that generates a 20.0-cm-diameter, 24.0 MW laser beam. One day, after physics class, you start to wonder if you could use the radiation pressure from this laser beam to launch small payloads into orbit. To see if this might be feasible, you do a quick calculation of the acceleration of a 20.0-cm- What speed would such a block have if pushed horizontally 95.0 m along a frictionless track by such a laser? Express your answer with the appropriate units. diameter, 98.0 kg, perfectly absorbing block. HA ? Value Units
A conducting loop around a region of strong magnetic field contains two lightbulbs, as shown. The wires connecting the bulbs are ideal. The magnetic field is increasing rapidly.a. Do the bulbs glow? Why or why not?b. If they glow, which bulb is brighter? Or are they equally bright? Explain.
A 50 g horizontal metal bar, 15-cm-long, is free to slide up and down between two tall, vertical metal rods that are 15 cm apart. A 5.5×10-2 T magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.2 resistor is connected across the two rods at the top. Then the bar is dropped. Part A What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times. Express your answer in meters per second. 跖 ΑΣΦ ? v = Submit Request Answer m/s