A piece of wood with a density of 689 kg/m3 is tied with a

Physics
Tutor: None Selected Time limit: 1 Day

Apr 11th, 2015

T= (1000 -689)*g*V =311 *9.8*V = 0.99 

V =  3.25x10^-4 m^3

the water level drops, because part of wood is above the water. 

V = 325 cm^2 

the volume of wood above the water 325*(1-0.689) = 101.1 cm^3

so the the change in water level is 

101.1/65 = 1.56 cm 


Apr 11th, 2015

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