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A 50.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11 x 10-8 O m and the density is 7.86 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 O.
a) What length of wire is required?
b) What must be the diameter of the wire?
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Consider the record throws for the javelin, men 98.48 m (Zelezny, 1996, 0.800 kg) and women 72.28 m (Spotakova, 2008, 0.600 kg); discus, men 74.08 m (Schult, 1986, 2.00 kg) and women 76.80 m (Rensch, 1989, 1.00 kg); and shotput, men 23.12 m (Barne..
a metal sign for a car dealership is a thin uniform right triangle with base length b and height h. the sign has mass
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