Physics, 02.12.2021 02:10 naomirice24
If the cone of a loudspeaker moves sinusoidally at 1.6 kHz with an amplitude of 4.5 μm, then: A) what is the cone's maximum speed? B) What is the cone's maximum acceleration?
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Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
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Aballet student who learns with the of his instructor is demonstrating learning.
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What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?
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If the cone of a loudspeaker moves sinusoidally at 1.6 kHz with an amplitude of 4.5 μm, then: A) wha...
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