Problem on resistivity of tungsten
You need to prepare a 0.151-mm-diameter tungsten wire with a resistance of 2.83 k? How long must the wire be? The resistivity of tungsten is 5.62 × 10-8 m. Please show how you derived the answer.
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The level of nitrogen oxides (NOX) in the exhaust of cars of a particular model varies Normally with mean 0.25 grams per mile (g/mi) and standard deviation 0.08 g/mi. Government regulations call for NOX emissions no higher than 0.31 g/mi.
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