Find the velocity of an object that has a mass of 500×10-6 kg and a charge of 1pc if it starts from rest and passes through a p

Question

Find the velocity of an object that has a mass of 500×10-6 kg and a charge of 1pc if it starts from
rest and passes through a potential difference of 120kV

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Khải Quang 1 year 2021-09-04T00:07:17+00:00 1 Answers 7 views 0

Answers ( )

    0
    2021-09-04T00:08:50+00:00

    Answer:

     v = 4.8 10⁻⁴ m / s

    Explanation:

    To solve this exercise we can use the concepts of energy. In this case the potential energy is transformed into kinetic energy

              U = K

              q V = ½ m v²

              v = [tex]\sqrt { \frac{2qV}{m} }[/tex]

    in the exercise they indicate the value of the charge q₁ = 1 pC = 1 10⁻¹² C

    let’s calculate

              v = [tex]\sqrt{ \frac{2 \ 1 \ 10^{-12} 120 \ 10^3}{500 ^{2} }[/tex]

              v = 4.8 10⁻⁴ m / s

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