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A neutral atom of alluminum has 13 protons and how many electrons
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When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.
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What are similarities and differences of reflection, refraction, diffraction and absorption?
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A neutral atom of alluminum has 13 protons and how many electrons...
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