Would any observer measure a non-zero magnetic field? if so, when would each observer first measure the field? explain your reasoning. 5. rank the initial magnitude of the magnetic field measured by each observer (i. e., the magnitude of the field that each observer first measures). explain your reasoning.

Farmer a has a deep well and needs a lot of water for her animals and crops. her neighbor, farmer b, has a shallower well. he needs less water than farmer a because his farm is smaller. in years of drought, sometimes farmer b can't get any water from his wells. what can farmer b do to decrease the likelihood of his well running dry?