A child's cubic play block has a mass of 120 g and sides of 5.00 cm. When placed in a bathtub full of water, what fraction of the block will be submerged? Answer as a decimal, so if 45% of the block is under water, you should write 0.45, and if 66% is under water you should write 0.66, and if 100% is under water then you should write 1 (this is the largest answer possible, by the way), etc. Hint: the density of water is 1.00 grams/cm^3.