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SUBHASH PUBLICATION-WORK, POWER AND ENERGY -NUMERICALS WITH SOLUTIONS
- Define power.
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- The K.E. of electron is 10 keV. Calculate its speed.
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- A family uses 8 kW of power. Direct solar energy is incident on the ho...
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- What is the amount of energy released per atomic fission of U-235 by a...
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- What is the approximate energy released in the fusion of four protons ...
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- An electron and a proton are detected in a cosmic ray experiment, the ...
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- A rain drop of radius 2 mm falls from a height of 500 m above the grou...
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- A body constrained to move along the z-axis of a coordinate system is ...
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- A molecule in a gas container hits a horizontal wall with a speed of 2...
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- A force of vecF=(hati+2hatj+3hatk)N when acting on a particle propels ...
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- A pump is required to lift 800 kg of water per minute from a 10 m deep...
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- The potential energy of a particle in the X-Y plane is given by U=k(x+...
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- A fire engine can throw 400 gallons of water per minute to a height of...
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- A car weighing 550 kg, ascends a hill with a gradient of 1 in 6 at a s...
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- A turbine generates 1.64 MW. Assuming the efficiency to be 80% and hea...
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- A steam turbine shovel lifts 10^(3) kg of earth to a height of 3.75 m ...
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- The makers of a certain motor car state that if the brakes are applied...
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- A machine gun fires 25 bullets of mass 0.1 kg each, per minute. If the...
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- A cloud of thickness 10 m and area 10^(6)m^(2) is formed at a height o...
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- A body of mass 10 kg at a height 200 m falls freely. Calculate the kin...
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- A cart is used to lower vertically, a block of mass 10 kg over a dista...
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