15. Assume that the two liquids in the U-shaped tube as shown are water and oil. Compute the density of the oil if the water stands 19 cm above the interface and the oil stands 24 cm above the interface.
(A) 455 kg/m3
(B) 532kg/m3
(C) 664kg/m3
(D) 792 kg/m3
(E) 825kg/m3
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統計: A(0), B(1), C(0), D(18), E(1) #3081255
統計: A(0), B(1), C(0), D(18), E(1) #3081255