Report copyright - 4 Thermal physics Answers...= 3.17 × 108 J = 3.2 × 108 J (to 2 sf) c) Total power = 14.7 kW × 4 = 58 800 W So t = Q/P = 3.17 × 108 J / 58 800 W = 5391 s = 90 mins (to 2 sf) d)
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