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Homework Help: What is their colective mass

  1. Jan 28, 2008 #1
    On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair.
    If your body develops a charge of -10 (microcoulombs), how many excess electrons has it acquired?

    N=6.2*10^13 electrons

    What is their collective mass?
    Express your answer using two significant figures.

    Last edited: Jan 28, 2008
  2. jcsd
  3. Jan 28, 2008 #2
  4. Jan 31, 2008 #3


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    What is the mass of a single electron? Find it in a table. Multiply....
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