The volume of an iceberg is 520,000 ft3. (a) What is its weight (in lb), assuming it is pure ice? (Round your answer to at least four significant figures.) lb (b) What is the volume of seawater (in ft3) it displaces when floating? (Hint: You know what the weight of the seawater is. Round your answer to at least three significant figures.) ft3 (c) What is the volume of the part of the iceberg out of the water (in ft3)? ft3