11) An electric train operates on 895 V. What is its power consumption when the current flowing through the train's motor is 2,200 A?

_______W.

14) The resistance of an electric heater is 90 when connected to 120 V. How much energy does it use during 45 min of operation?

_____J

17) The blackbody radiation emitted from a furnace peaks at a wavelength of4.410^-6m(0.0000044m).What is the temperature inside the furnace? _______K

19) The charger cord used to recharge a cell phone contains a transformer that reduces 120 V AC to 4 V AC. For each 1,150 turns in the input coil, how many turns are there in the output coil? (Round your answer to at least one decimal place.) ______turns