A power station with an efficiency of 0.4 generates 10⁸ W of electric power and dissipates 1.7×10⁸ Jof heat energy each second to the cooling water that flows through it, which increases its temperature by 3.5 Celsius degrees.

Knowing that the specific heat of water in SI units is 4184 J/kg ⋅ ∘C, find what mass of warmed water flows through the plant each second.