2. Bird bones have air pockets in them to reduce their weight-this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 35.0 g and its apparent mass when submerged is 3.40 g (the bone is watertight). (a) What mass of water is displaced? (b) What is the volume of the bone? (c) What is its average density?
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