If you mix 30 mL of cold water with 70 mL of hot water in a calorimeter, and the temperature of the cold water increases by 1.9°C, then how much heat (in joules) did the cold water absorb (only enter the number, not units, and assume the density of water to be 1.00g/mL, and the specific heat capacity of water to be 4.184 J/g-°C)?