A simple hydrometer is set up with a test –tube of mass 10g and length 12cm with a flat base and partially filled with lead...

A simple hydrometer is set up with a test –tube of mass 10g and length 12cm with a flat base and partially filled with lead shots. The test – tube has a uniform cross – sectional area of 2.0cm² and 10cm of its length is under water as shown in the figure below.



(i) Determine the mass of lead shots in the test – tube (Take density of water = 1000kgm^-3)


(ii) Calculate the mass of the lead shots to be added if the test – tube has to displace an equal volume of a liquid of density 1.25gcm^-3.

(iii) What is the function of the lead shots?

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(i)


(ii)


(iii) To make the test – tube to float upright

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maurice.mutuku answered the question on August 22, 2019 at 08:18

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