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3min=180s
W=Pt
W=2000W*180s
W=360000J=360kJ
P=2kW=2000W W=?
t=3min=180 s
P=W/t W=P * t
W=2000W * 180 s
W=360000J=360kJ
odp: zostanie wykonana praca 360 kJ