34) you are on a four-lane, undivided highway (two lane each direction). the spee
mph. you are planning to travel a considerable distance on this road and are driving
nighway (two lane each direction). the speed limit is 55
in the lane closest to the center line. a check of the inside mirror reveals a car following
about 30 feet behind you, (tailgating). a check over your right shoulder reveals a pickup
truck following in your blind spot. the nearest car ahead is about 100 feet away. lists 3
steps you would take to improve your position in the formation.

Energy flows from the producer level to the level. is called

This is the number of complete movements of a wave per 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.