Which of the following physical processes cannot be explained by the molecular theory of matter?
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2006
A force acting on a body causes a change in the momentum of the body from 12kg ms-1 to 16kg ms-1 in 0.2s. calculate the magnitude of the force
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2006
Which of the following source of energy is renewable?
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2006
Which of the following phenomena causes capillary of liquids in tubes of narrow bore?
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2006
A body is rotating in a horizontal circle of radius 2.5m with an angular speed of 5 rad s-1. Calculate the magnitude of the radial acceleration of the body
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2006
An object is said to undergo oscillatory motion when it moves
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2006
A solid body will float in a liquid if its
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2006
A block of volume 3 x 10-5m3 and density 2.5 x 103 kg m-3 is suspended from a spring balance with \(\frac{2}{3}\) of its volume immersed in a liquid of density 900 kg m-3. Determine the reading of the spring balance [g =…
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2006
which of the following statements about simple harmonic motion is correct? The
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2006
Which of the following quantities is a vector?
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2006
A car accelerates uniformly from rest at 5 ms-2. Determine its speed after 10s
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2006
Uniform speed occurs when there is equal change of
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2006
A moving car of mass 800 kg experiences a frictional force of 200N. If it accelerates 2 ms-2, calculate the magnitude of the force applied to the car
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2006
The potential energy in an elastic string of force constant K which has been extended by X metres is expresses as
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2006
Which of the following statements about the mouth piece of a telephone is correct? It converts sound energy into
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2006
A stone of mass 2.0kg is thrown vertically upward with a velocity of 20.0 ms-1, calculate the initial kinetic energy of the stone
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2006
The sagging of overhead electrical cables is the consequence of
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2006
The engine of a train produces a force of 3000N when moving at 30.ms-1. calculate the power of the engine
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2006
The S.I units of frequency, period and amplitude of a wave are respectively
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2006
The temperature of a liquid falls after some of it has evaporated because