, 22.06.2019 19:40 rileybaby34

# 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.

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Physics, 21.06.2019 22:50
Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0Â° north of east. the plane then flies to town b, located d2 = 230 km at 30.0Â° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)
Physics, 21.06.2019 23:00
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