c = 4200 J/(kg * C) 4200 J/(kg * C) * 1kg * 40C = 16800 J I = V/R I = 220/150 I = 1.467A Q = I^2 R t 16,800 = (1.467)^2 * 150 * t t = 52.042s
1 Answers · Science & Mathematics · 23/08/2010
For your question #1, reflexive implies serial. Serial states for all x there is a y such that xRy. Reflexive stats for all x, xRx. So, for all x there is a y such that xRy, namely y=x. For your...
2 Answers · Science & Mathematics · 15/04/2010
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