At some point, not close to its ends, within a solenoid of arbitrary length, calculate the approximate magnetic field if the solenoid carries a current 10.0 A and has 110.0 turns per meter of the solenoid's length.

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)