In 1911 ernest rutherford discovered the nucleus of the, Physics

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In 1911 ernest rutherford discovered the nucleus of the

Problem: In 1911, Ernest Rutherford discovered the nucleus of the atom by observing the scattering of helium nuclei from gold nuclei. If a helium nucleus with a mass of 6.68 x 10^-27 kg, a charge of +2e, and an initial velocity of 1.26 x 10⁷ m/s is projected head-on toward a gold nucleus with a charge of +79e,

Part A: How close will the helium atom come to the gold nucleus before it stops and turns around?

I need help to solve the above question and assume the gold nucleus is held in place by other gold atoms and does not move.

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Physics: In 1911 ernest rutherford discovered the nucleus of the

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Physics: In 1911 ernest rutherford discovered the nucleus of the

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