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A particle with a charge of -4.50x 10^-10 C and a mass of 6.6x 10^-18 kg is placed between two oppositely charged parallel plates with a voltage of 9.00x 10^5 V. The particle is injected at the negative plate with an initial speed of zero. What is the final speed of the particle just before it strikes the positive plate?

  • Physics -

    ΔKE = W (of electric field)
    0 – mv^2/2 = qU
    v=sqrt (2qU/m)

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