1. They have a wide base
2. They have a Low centre of gravity
chrispohmomanyi answered the question on February 9, 2018 at 10:57
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State two factors that determines the efficiency of an inclined plane as a machine
(Solved)
State two factors that determines the efficiency of an inclined plane as a machine
Explain how these factors affect efficiency
Date posted:
February 9, 2018
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Answers (1)
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A crystal of potassium permanganate was carefully introduced at the bottom of water column held in a gas jar. After sometime, the whole volume of...
(Solved)
A crystal of potassium permanganate was carefully introduced at the bottom of water column held in a gas jar. After sometime, the whole volume of water was coloured. Explain this observation
Date posted:
February 9, 2018
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Answers (1)
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State any two maintenance practices for secondary cells
(Solved)
State any two maintenance practices for secondary cells
Date posted:
February 9, 2018
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Answers (1)
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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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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 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)
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While heating water in a beaker, a wire gauze is placed below the beaker. Explain.
(Solved)
While heating water in a beaker, a wire gauze is placed below the beaker. Explain.
Date posted:
January 16, 2018
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Answers (1)
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Can visible light produce interference fringes? Explain
(Solved)
Can visible light produce interference fringes? Explain
Date posted:
January 8, 2018
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Answers (1)
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A boy heats 5kg of water to a temperature of 80oC. When she adds m kg of water at 15oC the mixture attains a...
(Solved)
A boy heats 5kg of water to a temperature of 80oC. When she adds m kg of water at 15oC the mixture attains a temperature of 40oC. Determine the value of m
Date posted:
January 7, 2018
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Answers (1)
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State the advantages of solid state devices over vacuum tubes
(Solved)
State the advantages of solid state devices over vacuum tubes.
Date posted:
January 6, 2018
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Answers (1)
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State and explain the effect of increasing the extra high tension E.H.T in an x-ray tube on the x-rays.
(Solved)
State and explain the effect of increasing the extra high tension E.H.T in an x-ray tube on the x-rays.
Date posted:
January 3, 2018
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Answers (1)
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There are two types of seismic waves produced by earthquakes. They are called P-waves and S-waves. P-waves are longitudinal and S-waves are transverse.(a) Explain...
(Solved)
There are two types of seismic waves produced by earthquakes. They are called P-waves and S-waves. P-waves are longitudinal and S-waves are transverse.
(a) Explain what is meant by the terms longitudinal and transverse.
longitudinal
transverse
(b) State another example of a longitudinal wave, a transverse wave.
Date posted:
January 2, 2018
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Answers (1)
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A box is lying on the floor of a fast moving truck; it is observed that when the lorry is suddenly brought to rest,...
(Solved)
A box is lying on the floor of a fast moving truck; it is observed that when the lorry is suddenly brought to rest, the final position of the box is nearer to the lorry than before. Explain this observation.
Date posted:
January 1, 2018
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Answers (1)
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Ether is put in a beaker which is placed on a thin film of water. A student blows the ether through a pipe continuously, state and...
(Solved)
Ether is put in a beaker which is placed on a thin film of water. A student blows the ether through a pipe continuously, state and explain the observation made after some time.
Date posted:
December 18, 2017
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Answers (1)
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Explain how doping produces an n-type semiconductor for a pure semiconductor material
(Solved)
Explain how doping produces an n-type semiconductor for a pure semiconductor material.
Date posted:
December 14, 2017
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Answers (1)
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State three advantages of using GM tube instead of a diffusion cloud chamber to detect radiations from radiations from radioactive substance.
(Solved)
State three advantages of using GM tube instead of a diffusion cloud chamber to detect radiations from radiations from radioactive substance.
Date posted:
December 12, 2017
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Answers (1)
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State the advantages of lead acid accumulator over primary cell
(Solved)
Advantages of lead acid accumulator over primary cell
Date posted:
December 9, 2017
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Answers (1)