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2 September, 22:43

What is the uncertainty in the position of an electron moving at 9.00 * 10 6 m/s with an uncertainty of Δ v = 0.01 * 10 6 m/s?

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  1. 3 September, 00:09
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    The uncertainty in the position of the electron is 5.787 nm

    Explanation:

    Δx ≥ h / (4πmΔv)

    where;

    h is Planck's constant and m is the mass of the object.

    Planck's constant = 6.626 X 10⁻³⁴

    The mass of an electron is 9.11 x 10⁻³¹kg.

    Δv is the change in velocity 0.01 * 10⁶ m/s

    Δx ≥ h / (4π*mΔv) = (6.626 X 10⁻³⁴) / (4π*9.11 x 10⁻³¹ * 0.01 * 10⁶)

    Δx ≥ 5.787 X 10⁻⁹ m

    Δx ≥ 5.787 nm

    Therefore, the uncertainty in the position of the electron is 5.787 nm
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