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Math homework help.

You are 50 km from an electric power plant. Electrons travel 10,000 meters/second through a conductor.
How long does it take an electron to travel from the power plant to where you are?

Posted - May 28, 2017
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Responses


  • 3191
    Most welcome.  Thank you.
      May 29, 2017 4:37 PM MDT
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  • 7280
    Precisely what are you thanking her for---suggesting we confuse students when we try to educate them?
      May 30, 2017 1:42 PM MDT
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  • 44620
    It is a critical thinking question posed after some basic electrical knowledge is gained.
      May 29, 2017 4:17 PM MDT
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  • 16794
    In my home state of South Australia high school math is treated as a science and teachers have to be able to cover all five: math, chemistry, physics, biology and geology, at least up to tenth grade. Ergo, you do have to know the difference between alternating and direct current. DC isn't used over distances of 50km, resistance causes it to attenuate too rapidly. With AC the electrons oscillate back and forth rather than actually travelling.
      May 28, 2017 4:48 PM MDT
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  • 7280
    Ah yes---the War of the Currents between Tesla and Edison.  (Oscillation vs billiard balls.)


      May 28, 2017 5:53 PM MDT
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  • 44620
    Tesla was an idiot. He was right but sold all his patents to Westinghouse.
      May 29, 2017 8:13 AM MDT
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