A certain part of an aircraft engine has a volume of 1.9 ft 3 . (a) Find the weight of the piece when it is made of silver.

A certain part of an aircraft engine has a volume of 1.9 ft3. (a) Find the weight of the piece when it is made of silver. (b) If the same piece is made of aluminum, what is its weight? (c)Determine how much weight is saved by using aluminum instead of silver.