試題詳解

56. An acrylic cube with a volume of 8 cm³ registers a weight of 40 g on a spring scale calibrated in grams. If the same object is weighed while submerged in a liquid with a density of 4 g/cm³, what reading will the scale display?
(A) 8 g
(B) 16 g
(C) 24 g
(D) 32 g
(E) 40 g