C-11-Q083mediumsingle_mcq1 kilowatt-hour in joules is —a3.6×1033.6 \times 10^33.6×103 Jb3.6×1053.6 \times 10^53.6×105 Jc3.6×1063.6 \times 10^63.6×106 Jd3.6×1093.6 \times 10^93.6×109 J