You adjust the frequency of the rf oscillator on the nmr electronics until there is negligible beating between the oscillator and the spin precessions, yielding equal frequencies of f= 15.30 mhz. the static magnetic field from the rare-earth magnet is:

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8

What is the magnitude of the resultant vector round your answer to the nearest tenth