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Decribe the energy transformations that ...

Decribe the energy transformations that occur as the Earth orbits the sun in its ellipitcal orbit.

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Changes in gravitational potential energy are compenstated by changes in its kinetic energy so that its mechanicacl energy is conserved.
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PRADEEP-WORK AND ENERGY-Section - A mock Test
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  2. A block of wood loses 100 J of gravitational potential energy as it sl...

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  4. You lift a box weighing 200 N from the floor to a shelf 1.5 m above. ...

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  7. Distinguish between energy and power.

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  9. You can decrease the kinetic energy of an object as much as you want. ...

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  10. An automobile travelling with a speed 60 km//h , can brake to stop wi...

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  12. What ids gravitational potential energy ? Obtain an expression for it ...

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  14. 300 Jof work is done in slide a 2kg block up an inclined plane of heig...

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  15. Many people debate about whether there is a God, or what God is. Is Go...

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  16. (a) A student throws a ball vertically upward so tha it just reaches ...

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  17. Two students who weigh the same start at the same ground floor locatio...

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  18. The concept of energy and its trnasformation is useful in explaining a...

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  20. (a) Why can we not associate a potential energy with the frictional fo...

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