1995
A machine has an efficiency of 60%. If the machine is required to overcome a load of 30 N with a force of 20 N calculate its mechanical advantage?
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1995 NECO SSCE Physics Past Questions
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1995
An air bubble of volume 2 cm* is formed 20 m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10 m of water?
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1995
The force exerted on a charged body in an electric field depends on I. the charge on the body II. the electric field intensity III. the square of the mass of the body
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1995
The energy stored in a capacitor of capacitance 5 μF is 40J. What is the voltage applied across its terminals?
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1995
An air bubble of volume 4cm3 is formed 20m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10cm of water?
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1995
A machine has an efficiency of 80%. If the machine is required to overcome a load of 60N with a force of 40N, calculate its velocity ratio.
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