P27_049 - 49. We use P = i2 R = i2 L/A, or L/A = P/i2 . So...

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49. We use P = i 2 R = i 2 ρL/A ,or L/A = P/i 2 ρ . So the new values of L and A satisfy µ L A new = µ P i 2 ρ new = 30 4 2 µ P i 2 ρ old = 30 16 µ L A old . Consequently, ( L/A ) new =1 . 875( L/A ) old . Note ,too ,that( LA ) new =( LA )
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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