24. dan runs off of the high dive with an initial horizontal velocity of 6.0 m/s.
a) how far will dan travel horizontally in 0.75 seconds?

answer:

 2.6

how that would be the answer:

more stringent is the demand set by interferometry. for good contrast, all atoms in the ensemble must experience a uniform laser intensity during the pulse, which the corresponds to a uniform rabi frequency and a uniform transfer ratio between the interferometer arms. with the interferometer beam at a 1/e2 radial waist of 2cm, limiting the intensity non-uniformity to below 10% requires a source that is 40nk or colder.