It has low boiling point
It has a high freezing point.
Has poor thermal conductivity.
lendiritu answered the question on November 21, 2017 at 06:24
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Explain why the feet feel colder when a person stands on a cemented floor than when on a wooden floor.
(Solved)
This is under Heat transfer.
Date posted:
November 21, 2017
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Answers (1)
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Explain why luggage compartments are situated in the lower parts of buses.
(Solved)
This is under equilibrium and center of gravity.
Date posted:
November 21, 2017
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Answers (1)
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Explain why a glass window soon becomes dusty when wiped dry with a dry cloth on a dry day.
(Solved)
This is under Electrostatics.
Date posted:
November 21, 2017
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Answers (1)
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Explain how heat loss through conduction and radiation is minimized in a vacuum flask
(Solved)
Explain how heat loss through conduction and radiation is minimized in a vacuum flask.
Date posted:
November 21, 2017
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Answers (1)
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When a brush is in water,the bristles spread but when it is taken out of water, the bristles cling together. Explain
(Solved)
When a brush is in water,the bristles spread but when it is taken out of water, the bristles cling together. Explain.
Date posted:
November 21, 2017
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Answers (1)
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State the advantages and disadvantages of anomalous expansion of water?
(Solved)
State the advantages and disadvantages of anomalous expansion of water?
Date posted:
November 20, 2017
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Answers (1)
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State one limitation of using a micrometer screw gauge.
(Solved)
This is under Measurement.
Date posted:
November 18, 2017
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Answers (1)
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What state of equilibrium does a bird perching on a hanging line have?
(Solved)
The topic involved is equilibrium and center of gravity
Date posted:
November 18, 2017
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Answers (1)
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State the paradox in Drude's Free electron model and explain how this paradox was removed.
(Solved)
State the paradox in Drude's Free electron model and explain how this paradox was removed.
Date posted:
November 18, 2017
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Answers (1)
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State two advantages of the cloud chamber over a charged gold leaf electroscope when used
as detectors of radiations
(Solved)
State two advantages of the cloud chamber over a charged gold leaf electroscope when used
as detectors of radiations
Date posted:
November 12, 2017
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Answers (1)
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State the conditions necessary for a wave incident on a slit to be diffracted
(Solved)
State the conditions necessary for a wave incident on a slit to be diffracted
Date posted:
November 12, 2017
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Answers (1)
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Trees planted along a busy road are observed to lean towards the road as they grow. Explain this observation
(Solved)
Trees planted along a busy road are observed to lean towards the road as they grow. Explain this observation.
Date posted:
November 12, 2017
.
Answers (1)
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Explain the reason why a dropping dust particle in a still room does not trace a straight vertical path
(Solved)
Explain the reason why a dropping dust particle in a still room does not trace a straight vertical path
Date posted:
November 12, 2017
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Answers (1)
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A negatively charged polythene rod is placed on a pan of electric balance. State and explain what happens to the balance reading if a positively...
(Solved)
A negatively charged polythene rod is placed on a pan of electric balance. State and explain what happens to the balance reading if a positively charged glass rod is brought closer to the polythene rod.
Date posted:
November 8, 2017
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Answers (1)
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In a clinical thermometer state how the thermometer can be made. (a) Move sensitive (b) Quick acting
(Solved)
In a clinical thermometer state how the thermometer can be made.
(a) Move sensitive
(b) Quick acting
Date posted:
November 8, 2017
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Answers (1)
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A bullet of mass 24g travelling in a horizontal path with a velocity of 450ms-1
strikes a wooden block of wood of mass 976g
resting...
(Solved)
A bullet of mass 24g travelling in a horizontal path with a velocity of 450ms-1
strikes a wooden block of wood of mass 976g
resting on a rough horizontal surface. After impact, the bullet and the block move together for a distance of 7.5m before
coming rest.
(a) Name the type of collision which takes place above (1 mark)
(b) What‘s the velocity of the two bodies when they start sliding (2 marks)
(c) Calculate the force which brings the two bodies to rest (3 marks)
(d) Determine the coefficient of friction between the block and the surface during this motion
Date posted:
November 2, 2017
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Answers (1)
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State the four advantages and the two disadvantages of alkaline accumulators over the lead-acid accumulators and the two disadvantages.
(Solved)
State the four advantages and the two disadvantages of alkaline accumulators over the lead-acid accumulators and the two disadvantages.
Date posted:
November 2, 2017
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Answers (1)
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In deriving the equation of continuity, what three assumptions are made?
(Solved)
In deriving the equation of continuity, what three assumptions are made?
Date posted:
November 2, 2017
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Answers (1)
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A partially inflated balloon at sea level becomes fully inflated at higher altitudes. Explain this observation.
(Solved)
A partially inflated balloon at sea level becomes fully inflated at higher altitudes. Explain this observation.
Date posted:
November 2, 2017
.
Answers (1)
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Explain why a high jumper flexes his knees when landing on the ground.
(Solved)
Explain why a high jumper flexes his knees when landing on the ground.
Date posted:
November 2, 2017
.
Answers (1)