(A) A metal bowl with a weight of 1.55 N is placed in a larger kitchen container filled with corn oil. How much corn oil must the bowl displace in order to float? For reference, the mass density of corn oil is about 900 g/liter and its weight density is about 8.82 N/liter. Please give your answer in liters.

(B) Air flows through a heating duct with a square cross-section with 9-inch sides at a speed of 4.3 ft/s. Just before reaching an outlet in the floor of a room, the duct widens to assume a square cross-section with sides equal to 15 inches. Compute the speed of the air flowing into the room (in ft/s), assuming that we can treat the air as an incompressible fluid.

(C) The wing of an airplane has an average cross-sectional area of 13 m² and experiences a lift force of 86,000 N. What is the average difference in the air pressure between the top and bottom of the wing?

(D) A scale reads 334 N when a piece of iron is hanging from it. What does it read (in N) when it is lowered so that the iron is submerged in water?