vTake a known measure of a solid e.g metal block and dip it INA bath of water
vMeasure the final temperature of the water and the solid
vTransfer the solid object into cold water in a calorimeter whose mass is known
vCover the calorimeter with a piece of cardboard and stir continuously and
vRecord; the mass of the solid metal block, mass of copper calorimeter, mass of calorimeter + water, temperature of the boiling water which is the initial temperature of the metal block, temperature of the cold water in the calorimeter which is the initial temperature of the calorimeter and finally, temperature of the mixture
23454 answered the question on June 2, 2018 at 07:17
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Why are synchronous motors not self starting?
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Why are synchronous motors not self starting?
Date posted:
April 30, 2018
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Answers (1)
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Into a stream, with no trace of salt initially, a salt with a concentration of 20 mg/cc is introduced at a constant rate of 2...
(Solved)
Into a stream, with no trace of salt initially, a salt with a concentration of 20 mg/cc is introduced at a constant rate of 2 litres per minute. The samples collected at a downstream section sufficiently far away indicated an equilibrium salt concentration of 0.05 ppm. Determine the discharge in the stream from this data.
Date posted:
April 9, 2018
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(Solved)
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April 9, 2018
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April 5, 2018
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April 1, 2018
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State the IEE regulations regarding cables
Date posted:
April 1, 2018
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State the properties of copper that makes it a good choice for electrical conductors.
Date posted:
April 1, 2018
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Date posted:
March 31, 2018
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State two indications of a fully charged lead-acid cell.
Date posted:
March 5, 2018
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Explain the term “cogeneration” and give two possible ways of cogeneration
Date posted:
February 22, 2018
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Date posted:
February 22, 2018
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(Solved)
Explain the different methods of starting an induction motor.
Date posted:
February 22, 2018
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February 22, 2018
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Why are different levels of voltages used for generation, transmission and
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(Solved)
Why are different levels of voltages used for generation, transmission and
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Date posted:
February 20, 2018
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Date posted:
February 16, 2018
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Give five functional requirements of foundations.
Date posted:
January 1, 2018
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Explain how to test for silt content in sand.
Date posted:
January 1, 2018
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(Solved)
List five causes of unsealing of traps.
Date posted:
January 1, 2018
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Answers (1)
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(Solved)
State 5 principles of a good drainage system.
Date posted:
January 1, 2018
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(Solved)
Give two reasons for providing hoarding on a construction site.
Date posted:
October 11, 2017
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