Which of the following (n, l, ml, ms) combinations is impossible for an electron in an atom? a.
6, 2, 0, 1/2

b.
3, 1, 1, −1/2

c.
3, 2, −2, −1/2

d.
3, 1, −2, 1/2

you would expect a sound wave to speed up. - b)

the doppler effect is used by weather forecasters to measure 

moving clouds

earth's neighboring galaxy, the andromeda galaxy, is a distance of 2.54×107 light-years from earth. if the lifetime of a human is taken to be 70.0 years, a spaceship would need to achieve some minimum speed min to deliver a living human being to this galaxy.