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A certain moving electron has a kinetic energy

of 1.01 × 10−19 J.
Calculate the speed necessary for the electron to have this energy. The mass of an
electron is 9.109 × 10−31 kg.
Answer in units of m/s.

Question ID
524971

Created
April 4, 2011 12:26am UTC

Rating
1

URL
https://questions.llc/questions/524971

Answers
1

Views
3103

1 answer

  1. Since the kinetic energy is
    KE = (1/2)mV^2,

    The speed is V = sqrt(2*KE/m)

    They have told you the values of KE and m; so do the calculation.

    Answer ID
    525061

    Created
    April 4, 2011 2:06am UTC

    Rating
    -1

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