Mathematics, 07.11.2019 04:31, rose200215

Aflashlight has a parabolic reflector that has a diameter of 52.25 mm a depth of 23.95mm. whew should the bulb be placed for so the flashlight is optimized for a focused beam of light

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Aflashlight has a parabolic reflector that has a diameter of 52.25 mm a depth of 23.95mm. whew shoul...