Physics, 20.03.2020 05:06 ciarrap552
Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 1.80 mm in diameter, what is its intensity (in watts per meter squared)
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Could someone . i have tried to solve myself but my calculation is off
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Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves
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Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0....
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