Physics, 29.07.2019 00:30 daniel4349
75 !me! i need the correct answer! this is my second time posting this cause no one answered. why is the nucleus shaped like a sphere and why does it make the function possible?
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Physics, 22.06.2019 14:40
On a geologic map, if the contacts between sedimentary rock units form a bullβs-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)
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Physics, 22.06.2019 16:30
Select all the correct answers. which three statements about electromagnetic radiation are true?
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Physics, 22.06.2019 19:40
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
Answers: 3
75 !me! i need the correct answer! this is my second time posting this cause no one answered. why...
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