problem29_64

problem29_64 - decreased to half the previous value. c)...

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29.64: a) From Example 29.7, the power required to keep the bar moving at a constant velocity is . Ω 0.090 W 25 )] s m (3.00 T) [(0.25 ) ( ) ( 2 2 2 = = = = P BLv R BLv R P b) For a 50 W power dissipation we would require that the resistance be
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Unformatted text preview: decreased to half the previous value. c) Using the resistance from part (a) and a bar length of 0.20 m W 0.11 0.090 )] s m 2.0 m)( (0.20 ) T [(0.25 ) ( 2 2 = = = R BLv P...
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