A block with an initial speed of 10 m/s slides on a horizontal surface and comes to rest after traveling a distance of 25 m. What is the coefficient of kinetic friction between the block and the surface? (Take g = 9.8 m/…
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2025
The electrical power developed in the resistor above is
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2025
Which light source operates primarily based on stimulated emission of radiation?
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2025
When a spiral spring is compressed by an external force of 200 N, it stores 0.16 J of energy. What amount of energy will it store when compressed by an external force of 700 N?
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2025
A boat or airplane has a pointed front or head. This is to
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2025
When both the object and its image move together in the same direction relative to the observer, then there is
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2025
What is the electrolyte used in wet Leclanche cell
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2025
A refrigerator uses 150W. If it is kept on for 336 hours nonstop. What is the energy consumed in Kwh?
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2025
Calculate the specific heat capacity of a metal rod of mass 0.025kg whose temperature was raised by 15ºC when 1000J of heat energy was added to the rod(assuming the heat loss to the surrounding is negligible)
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2025
The thermal capacity of a body depends on one of the following
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2025
The operation of a photovoltaic cell is possible by the action of
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2025
From the above graph, what is the distance covered in the last stage of the motion?
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2025
Copper of 0.2g and silver of 1.2g are deposited when current is passed through copper and silver voltameter. Calculate the electrochemical equivalent, Z of silver if that of copper is 0.00028gC\(^{-1}\)
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2025
The tangential force acting on an object that opposes it from sliding freely on the adjacent surface is called
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2025
A well-lagged thin metal rod of length 0.2 m has a temperature gradient of 416 K m\(^{-1}\). If one end is at 233º C, what is the temperature at the other end?
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2025
I. The colour of light depends on its frequency II. When white light is dispersed by a triangular prism, yellow is deviated more than green III. Rainbows are formed when rains fall heavily. Which of the above statements…
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2025
A boy uses a single string pulley system to lift a mass of 20kg moving with a velocity of 5ms\(^{-1}\). What is the power developed by the boy if g = 10ms\(^{-2}\)?
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2025
A hydraulic press consists of two cylinders of cross-sectional radius r\(_1\) and r\(_2\). If a force of 200N applied to the smaller piston (r\(_1\)), causes a force of 3200N to be transmitted onto the larger piston (r\(…
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2025
From the diagram above, the sine of the angle of refraction in glass is
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2025
The focal length of the natural eye lens is variable due to the action of the