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pat666
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Homework Statement
9. Block A hangs by a cord from spring balance D and is submerged in a liquid C contained in beaker B. The mass of the beaker is 1.00 kg; the mass of the liquid is 1.80 kg. Balance D reads 3.50 kg, and balance E reads 7.50 kg. The volume of block A is 3.80 10-3 m3.
(a) What is the density of the liquid?
(b) What will each balance read if block A is pulled up out of the liquid?
Homework Equations
The Attempt at a Solution
not sure on a) i found the up thrust to be 8.2KG? then that is equal to the mass t of liquid displaced. rho=m/v i found the density to be 2158Kg/m^3
Part b was easier- still need someone to check
m_D=7.5-1-1.8
m_D=4.7Kg
m_A=7.5-4.7
m_A=2.8Kg ??