how long does it take the ice cube to melt knowing watt of power and j?

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how long does it take the ice cube to melt knowing watt of power and j?

an ice cube is placed in a micro. suppose the micro delivers 105 w of power to the ice cube and that it takes 32,200 J to melt it. how long does it take for the ice cube to melt?

2007-06-23 20:03:41 · 2 answers · asked by spaceranger2010 2 in Science & Mathematics ➔ Physics

2 answers

Power= Energy/time, so time=Energy/Power = 32,200/105s = 306.7 s .

2007-06-23 20:07:43 · answer #1 · answered by supastremph 6 · 0⤊ 0⤋

the micro delivers 105 w of power i.e., 105 J per sec
the ice requires 32200 J to melt
So time req = 32200/105 sec watevr dat is

2007-06-24 03:08:10 · answer #2 · answered by hipguyrockin 2 · 0⤊ 0⤋