Consider a Peltier cell with cooling power P=10W, placed on a person's wrist. Let's assume that all of its power is spent on cooling blood flowing through a vein with volumetric flow rate Q=1.6ml⋅s−1. Blood density is ρ=1025kg⋅m−3, its heat capacity c=4.2kJ⋅kg−1⋅K−1. How much cooler is the blood after flowing through the wrist?