You hear a sound coming from a speaker 60m away at 90 dB. The speaker is producing
how many
Watts of sound power. Round to the nearest ones place.

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?