A microwave oven has a power requirement of 1,262 W. A frozen dinner requires 6.7 min to heat on full power. (a) How much electrical energy (in kWh) is used?
kWh
(b) If the cost of electricity is 16¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)