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Sharp pointed heels have a very small area of contact and they therefore exert maximum pressure on the floor hence more damage
johnmulu answered the question on February 6, 2017 at 08:59
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State two factors that determine the pressure at a point in a liquid.
Date posted: February 6, 2017. Answers (1)
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Explain why brakes fail in a hydraulic breaking system when air gets into the system.
Date posted: February 6, 2017. Answers (1)
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In an experiment to demonstrate atmospheric pressure, a plastic bottle is partially filled with hot water and the bottle is then tightly corked. After some time the bottle starts to get deformed.
i) State the purpose of the hot water
ii) State the reason why the bottle gets deformed
iii) Explain your answer in (ii)
Date posted: February 6, 2017. Answers (1)
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Date posted: February 6, 2017. Answers (1)
- Some water in a tin can was boiled for some time. The tin can was then sealed and cooled. After some time it collapsed(Solved)
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Date posted: February 6, 2017. Answers (1)
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State Pascal's Principle of transmission of pressure in fluids.
Date posted: February 6, 2017. Answers (1)
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The total weight of a car with passengers is 25, 000 N. The area of contact of each of the four tyres with the ground is 0.025m2. Determine the minimum car tyre pressure
Date posted: February 6, 2017. Answers (1)
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State one advantage of fitting wide tyre on a vehicle that moves on earth roads.
Date posted: February 6, 2017. Answers (1)
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The height of the mercury column in a barometer at a place is 64 cm. What would be the height of a column of paraffin in barometer at the same place?
(Density of paraffin = 8.0 X 102kgm-3)
Date posted: February 6, 2017. Answers (1)
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A small nail may pierce an inflated car tyre and remain there without pressure reduction in the tyre. Explain this observation.
Date posted: February 6, 2017. Answers (1)
- A solid weighs 16.5 N on the surface of the moon. The force of gravity on the moon is 1.7NKg-1. Determine the mass of the solid.(Solved)
A solid weighs 16.5 N on the surface of the moon. The force of gravity on the moon is 1.7NKg-1. Determine the mass of the solid.
Date posted: February 6, 2017. Answers (1)
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Date posted: February 6, 2017. Answers (1)
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State ways of reducing surface tension in water.
Date posted: February 6, 2017. Answers (1)
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One factor that affect the surface tension of a liquid is the presence of impurities. State one other factor
Date posted: February 6, 2017. Answers (1)
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Date posted: February 6, 2017. Answers (1)
- A metal pin was observed to float on the surface of pure water. However the pin sank when a few drops of soap solution were carefully added to the water(Solved)
A metal pin was observed to float on the surface of pure water. However the pin sank when a few drops of soap solution were carefully added to the water. Explain this observation
Date posted: February 6, 2017. Answers (1)
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State the reason why water spilled on a glass surface wets the surface.
Date posted: February 6, 2017. Answers (1)
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A butcher has a beam balance and masses 0.5 kg and 2 kg. How would he measure 1.5 kg of meat on the balance at once?
Date posted: February 6, 2017. Answers (1)
- Why does the weight of the body vary from place to place?(Solved)
Give reason why the weight of the body varies from place to place.
Date posted: February 6, 2017. Answers (1)
- Name two forces that determine the shape of liquid drop on a solid surface.(Solved)
Name two forces that determine the shape of liquid drop on a solid surface.
Date posted: February 6, 2017. Answers (1)