Answered: An electrician wishes to cut a copper…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 10CQ: Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew =...

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An electrician wishes to cut a copper wire (ρ=1.72×10-8 Ωm) that has 10Ω of resistance. The wire has a radius of 0.625mm. Approximately what length of wire has a resistance equal to the maximum 10Ω ? The length of the copper wire having a resistance of 10Ω is = ? m b) Calculate the gravitational force between the earth and the moon, if the mass of the earth is 5.98×1024 kg and the mass of the moon is 7.36 ×1022 kg. The mean distance between the earth and the moon is 3.85 ×108 m and the universal gravitational constant G = 6.67 ×10-11 Nm2/kg2. The gravitational force between the earth and the moon is= ? N

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