Hydraulic engineers in the the united states often use, as a uit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. a severe thunderstorm dumped 2 in. of rain in 30 min on a town of area 26 km2. what volume of water, in acre-feet, fell on the town?

The space within which a test north pole experiences a force magnetic poles 2. a powerful stream of electrons flowing high above the earth in the ionosphere electrojet 3. a concept to explain the directional nature of a magnetic field field lines 4. coil of wire designed to produce a magnetic field by a current passing through its windings ionosphere 5. that region above the earth's atmosphere where particles exist in an ionized state magnetic field 6. the extremities of a magnet where the field lines tend to converge or concentrate aurora borealis 7. a phenomenon that occurs in the northern latitudes; the northern lights solenoid