How long does it take electrons to get from the car battery to the starting motor? Assume the current is 141 A and the electrons travel through copper wire with cross sectional area 42.5 mm? and length 79.3 cm. The mass den- 3 sity of copper is 8960 kg/m³ and the molar mass is 63.5 g/mol. Avogadro's number is 6.022 x 1028 . Assume that each copper atom contributes one conduction electron. Answer in units of min.
How long does it take electrons to get from the car battery to the starting motor? Assume the current is 141 A and the electrons travel through copper wire with cross sectional area 42.5 mm? and length 79.3 cm. The mass den- 3 sity of copper is 8960 kg/m³ and the molar mass is 63.5 g/mol. Avogadro's number is 6.022 x 1028 . Assume that each copper atom contributes one conduction electron. Answer in units of min.
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