a. The bottle is held by the neck when it is being wiped, to avoid expansion due to body warmth.
b. The outside of the bottle must be wiped carefully.
c. Ensure that there is no air bubble when the bottle is filled with water.
joseph rimiru answered the question on October 16, 2017 at 15:13
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A rectangular tank measures 25.0 m long, 10.0 m wide and 2 m high. Calculate the mass of water in the tank when it is...
(Solved)
A rectangular tank measures 25.0 m long, 10.0 m wide and 2 m high. Calculate the mass of water in the tank when it is half full. (Density of water 1000 kg/m^3, assume these measurement are internally taken).
Date posted:
October 16, 2017
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Answers (1)
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(Solved)
The density of mercury is 13.6 g/cm^3. Find the volume of 4000 g of mercury in m^3.
Date posted:
October 16, 2017
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Answers (1)
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(Solved)
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Date posted:
October 16, 2017
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Answers (1)
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The density of certain materials was found to be 32.5 g/cm^3. Express this in SI units.
(Solved)
The density of certain materials was found to be 32.5 g/cm^3. Express this in SI units.
Date posted:
October 16, 2017
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Answers (1)
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The density of sea water is found to 1.005 g/cm^3. Express this density in kg/m^3.
(Solved)
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Date posted:
October 16, 2017
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Answers (1)
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(Solved)
State two reasons why lycopodium powder is used in the oil drop experiment.
Date posted:
October 16, 2017
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Answers (1)
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(Solved)
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Date posted:
October 16, 2017
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Answers (1)
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(Solved)
State two molecular differences between a real gas and ideal gas
Date posted:
October 16, 2017
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Answers (1)
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(Solved)
Explain why a liquid and not a gas is used as a hydraulic machine fluid
Date posted:
October 16, 2017
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Answers (1)
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The thermal conductivity of a metal increases with the increase cross-sectional area of the metal. Explain how the cross-section affects conductivity using the electron movement.
(Solved)
The thermal conductivity of a metal increases with the increase cross-sectional area of the metal. Explain how the cross-section affects conductivity using the electron movement.
Date posted:
October 16, 2017
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Answers (1)
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An air bubble expands as it rises to the surface of water in a deep pond. State the cause of this given that the temperature...
(Solved)
An air bubble expands as it rises to the surface of water in a deep pond. State the cause of this given that the temperature remains constant.
Date posted:
October 16, 2017
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Answers (1)
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Explain why Fuel tankers have loose chain under them to touch the ground as they move.
(Solved)
Explain why Fuel tankers have loose chain under them to touch the ground as they move.
Date posted:
October 16, 2017
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Answers (1)
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(Solved)
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Date posted:
October 16, 2017
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Answers (1)
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(Solved)
Define the following terms
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Date posted:
October 16, 2017
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Answers (1)
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(Solved)
State Snells' law
Date posted:
October 16, 2017
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Answers (1)
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(Solved)
State and explain why plane mirrors are not suitable as side view mirrors of motor vehicle
Date posted:
October 14, 2017
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Answers (1)
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Smoke particle in air when strongly illuminated were observed to describe continuous, random haphazard movements.Explain what would be observed when the air temperature is decreased....
(Solved)
Smoke particle in air when strongly illuminated were observed to describe continuous, random haphazard movements. Explain what would be observed when the air temperature is decreased.
Date posted:
October 14, 2017
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Answers (1)
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(Solved)
Define the following terms (i) Wavelength (2) Frequency (3) Amplitude
Date posted:
October 14, 2017
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Answers (1)
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It is observed that when air bubbles rises from the bottom of a glass filled with water its size increases.Explain this observation
(Solved)
It is observed that when air bubbles rises from the bottom of a glass filled with water its size increases.Explain this observation
Date posted:
October 14, 2017
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Answers (1)
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Water in a pond may freeze on the surface but not deep inside the pond explain?
(Solved)
Water in a pond may freeze on the surface but not deep inside the pond explain?
Date posted:
October 14, 2017
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Answers (1)