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PRADEEP-WORK AND ENERGY-Section - A mock Test
- A block of wood loses 100 J of gravitational potential energy as it sl...
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- Decribe the energy transformations that occur as the Earth orbits the ...
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- You lift a box weighing 200 N from the floor to a shelf 1.5 m above. ...
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- Why does a saw become warm when it is used to cut a log of wood ? Stat...
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- Find the power of an engine which lifts 90 metric tonnes of coal per h...
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- Distinguish between energy and power.
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- What is the commercial unit of electric energy? Obtain the relation be...
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- You can decrease the kinetic energy of an object as much as you want. ...
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- An automobile travelling with a speed 60 km//h , can brake to stop wi...
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- What do you mean by power ? Derive a relation between power and veloci...
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- What ids gravitational potential energy ? Obtain an expression for it ...
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- A tank of size 5 mxx 5m xx 5m is full of water and built on ground. Fi...
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- 300 Jof work is done in slide a 2kg block up an inclined plane of heig...
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- Many people debate about whether there is a God, or what God is. Is Go...
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- (a) A student throws a ball vertically upward so tha it just reaches ...
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- Two students who weigh the same start at the same ground floor locatio...
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- The concept of energy and its trnasformation is useful in explaining a...
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- A bullet of mass 20 g moving with a velocity of 500 m/s, strikes a fre...
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- (a) Why can we not associate a potential energy with the frictional fo...
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- What is power ? How do you differentiate killowatt from kilowatt hour ...
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