Eavesdropping From the Edmund Scientific catalog you can buy a device that will "pull in voices up to three-quarters of a mile away with our electronic parabolic microphone." The 18.75 -in.-diameter plastic shield reflects sound waves to a microphone located at the focus. Given that the microphone is located 6 in. from the vertex of the parabolic shield, find the equation for a cross section of the shicld. What is the depth of the shield? (IMAGE CANNOT COPY) | Numerade
Eavesdropping From the Edmund Scientific catalog you can buy a device that will "pull in voices up to three-quarters of a mile away with our electronic parabolic microphone." The
VIDEO ANSWER: So we're giving an equation. We have to find an equation for a parabola. Microphones. They will kind of like this, all right, And there's a focus…
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