Aladybug sits at the outer edge of a merry-go-round, and a gentleman bug sits halfway between her and the axis of rotation. the merry-go-round makes a complete revolution once each second. the gentleman bug's angular speed is: half the ladybug's. the same as the ladybug's. twice the ladybug's. impossible to determine. what is the angular momentum of the ladybug-sized merry-go-round from question 1 if we approximate it as a 2.0 kg solid disk with radius of 0.1 m? recall from this question that the merry-go-round makes a complete revolution once each second.

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.