One kg of liquid water at 25C (a) experiences a temperature increase of 1 K. wha

Question

One kg of liquid water at 25C (a) experiences a temperature increase of 1 K. what isdeltaUt, in KJ? (b) Experiences a change in elevation deltaZ. The change inpotential energy deltaEp is the same as deltaUt for part (a). Whatis deltaz, in meters? (c)Is accelerated from rest to final velocity u. the change inkinetic energy delta Ek is the same as deltaUt for part (a)what isu in m/s?
deltaUt= internal energy delatz= elevation or height u= velocity (a) experiences a temperature increase of 1 K. what isdeltaUt, in KJ? (b) Experiences a change in elevation deltaZ. The change inpotential energy deltaEp is the same as deltaUt for part (a). Whatis deltaz, in meters? (c)Is accelerated from rest to final velocity u. the change inkinetic energy delta Ek is the same as deltaUt for part (a)what isu in m/s?
deltaUt= internal energy delatz= elevation or height u= velocity

Explanation / Answer

(a)U=mc T = 1 kg * 4.18 kJ/kg C* 1 = 4.18 kJ (b) mgh = mg z = 4.18 kJ z = 4180/(1 kg*9.8 m/s^2) = 426.53m (c) (1/2)mv2=4.18 kJ v = (2*4180/(1 kg)) = 91.43 m/s

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