A lead block of volume 0.16 m3 is suspended from a spring scale and immersed in a flask of water. Then the lead block is removed, and an aluminum block of the same volume replaces it.
(a) In which case is the buoyant force the greatest, for the lead block or the aluminum block?
lead block
aluminum block
the buoyant force is the same for each

(b) In which case does the spring scale read the largest value?
lead block
aluminum block
the scale reading is the same for each

(c) Use the known densities of these materials to calculate the quantities requested in parts (a) and (b). Compare your calculations (for consistency) with your previous answers to parts (a) and (b). (The density of lead is 1.13 ✕ 104 kg/m3 and the density of aluminum is 2.70 ✕ 103 kg/m3.)
Material Buoyant force Scale reading
lead N N
aluminum N N

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