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High power lasers in factories are used to cut through cloth and metal (Figure P34.23). One such laser has a beam diameter of

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E = 0.3M vim a ga 0.5 mm 20.5x10m @ B = | 400-37 eR? @ I-Cola OB 3x108x (1x10-3) = 0.12x109 2x 471x10-7 3) I = 114.3 mW/m2 /

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