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At 4 degrees C, 175 ml of pure water would have mass of 175 g.
A cubic centimeter is a cubic centimeter always and no matter what! It doesn't matter what the temperature is! However, I think you are asking for the mass of a cubic centimeter of water 4 °C and that is exactly 1 gram.
4° C is the temperature of maximum density for water. Change temperature in either direction from there -- whether you warm it or cool it -- the density decreases.
4 percent of 300 = 12
1 joule = 2.39 X 10-4 kcal 65-30 = 35 degrees 1 kcal = 1 degree kg 35 degrees X 0.5 kg / 2.39 X 10-4 kcal/joulle = 73222 joules