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Estimate the magnitude of the electric field due to the proton in a hydrogen atom at a distance of 5.29Γ10 to the power of β11 m, the expected position of the electron in the atom.
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The doctor lands his tardis on a planet whose radius is 1.2x10^7m the acceleration due to gravity is 18m/s^2. what is the mass of the planet
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What does it mean that corporations are taxed twice...
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