Determine the angular momentum of a 71-g particle about the origin of coordinates when the particle is at x = 5.0 m, y = -5.6 m, and it has velocity v = (3.31 -8.0k) m/s.

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Q: 11, 12, 13, and 14. Thank you.

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Q: Why is it 10 and not 9.8?

A: Actually value of g is 9.81 but we can approximate it to be 10.

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Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.