The mass of an electron is 9. 11×10−31 kg. If the de broglie wavelength for an electron in a hydrogen atom is 3. 31×10−10 m, how fast is the electron moving relative to the speed of light? the speed of light is 3. 00×108 m/s.

answer; /// i believe the correct answer is $165.00 per resident in florida

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im an afro-american, r u the golden fish?

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i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!

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