- #1

EzaMoo

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## Homework Statement

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?

For figure see : http://session.masteringphysics.com/problemAsset/1026707/4/yg.13.46.jpg

## Homework Equations

Wdisplaced fluid = density x gV

## The Attempt at a Solution

Okay... this has me stumped!

a) V x density fluid + m block + m fluid = 7.5 kg

from here density of fluid = 1237kg/m^3

b) From archimede's principle we find the weight of the displaced fluid = weight of block = 46.1kg

Then I am unsure of what to do next... assuming what I have done so far is correct