moochi16 moochi16

21-05-2017
Physics

contestada

a graduated cylinder has a mass of 50g when empty. when 30 mL of water is added, the graduated cylinder has a mass of 120g. if a rock is added to the graduated cylinder, the water level rises to 75mL and the total mass is now 250g. what is the density of the rock?

Respuesta :

gerishonwambugu gerishonwambugu

21-05-2017

D=M/V
M=250G-120G=130G
V=75ML-30ML=45ML
D=130/45=2.89g/ml

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