? Number of half lifes = 19.15/3.83 = 5
? N = N(½)T/t = 6 x 103 (½)5 = 50 days/sec
gregorymasila answered the question on February 7, 2018 at 13:08
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A gas occupies a volume of 4000 litres at a temperature of 37 degrees celcius and normal atmospheric pressure. Determine the new volume of the gas...
(Solved)
A gas occupies a volume of 4000 litres at a temperature of 37 degrees celcius and
normal atmospheric pressure. Determine the new volume of the gas if it is
heated at constant pressure to a temperature of 670C (normal atmospheric
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Date posted:
February 7, 2018
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Answers (1)
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February 7, 2018
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Date posted:
February 5, 2018
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Date posted:
February 5, 2018
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Date posted:
January 30, 2018
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Date posted:
January 30, 2018
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Date posted:
January 29, 2018
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January 29, 2018
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State the advantages of using K-type thermometers.
Date posted:
January 29, 2018
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State the advantages of using probe thermometers.
Date posted:
January 29, 2018
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(Solved)
Identify the benefits of using infrared thermometers.
Date posted:
January 29, 2018
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Explain why nylon clothes crackles as you undress.
(Solved)
Explain why nylon clothes crackles as you undress
Date posted:
January 28, 2018
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Answers (1)
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(Solved)
State the four axioms of conservation law
Date posted:
January 27, 2018
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State the disadvantages of using mirrors as optical instruments?
(Solved)
State the disadvantages of using mirrors as optical instruments?
Date posted:
January 26, 2018
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A body weighs 3.6N in air and 2.4N when fully immersed in water.The density of the body in g/cm^3 is?
(Solved)
A body weighs 3.6N in air and 2.4N when fully immersed in water.The density of the body in g/cm^3 is?
Date posted:
January 25, 2018
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Answers (1)
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A machine with an efficiency of 60% is used to overcome a load of 60N through the application of a force of 40N. Calculate...
(Solved)
A machine with an efficiency of 60% is used to overcome a load of 60N through the application of a force of 40N. Calculate the velocity ratio of the machine
Date posted:
January 24, 2018
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Answers (1)
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A bubble of soap blown to the wider end of a funnel,When the top is left open the bubbles flatten to a film which rises...
(Solved)
A bubble of soap blown to the wider end of a funnel,When the top is left open the bubbles flatten to a film which rises up the funnel. Explain observation.
Date posted:
January 23, 2018
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Answers (1)
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Two table tennis balls hang at the same level suspended from a thread a short distance apart. A stream of air is blown between the...
(Solved)
Two table tennis balls hang at the same level suspended from a thread a short distance apart. A stream of air is blown between the balls. Explain what happens to the balls.
Date posted:
January 23, 2018
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Answers (1)
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A beaker containing water was placed on a flat bench.State and explain the changes in stability of the beaker when the water freezes to ice.
(Solved)
A beaker containing water was placed on a flat bench.State and explain the changes in stability of the beaker when the water freezes to ice.
Date posted:
January 23, 2018
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Answers (1)
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Why is a metal cap of a leaf electroscope circular?
(Solved)
Why is a metal cap of a leaf electroscope circular?
Date posted:
January 21, 2018
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Answers (1)