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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
- An electric bulb of 60 W is used for 6 hours per day. Calculate the un...
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- Define work. Give its SI and CGS unit. What is the relationship betwee...
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- Give an example for force acting in the direction of displacement.
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- Give an example for force acting against the direction of displacement...
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- Deifne potential energy. On what factors does potential energy depends...
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- A body is thrown vertically upwards with a speed u. When does its pote...
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- A body is thrown vertically upwards with a speed u. When does kinetic ...
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- A body is thrown vertically upwards with a speed u. When does P.E. = K...
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- Two girls, each of weight 400 N climb up a rope through a height of 8 ...
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- A mass of 10 kg is dropped form a height of 50 cm. Find its potential ...
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- A mass of 10 kg is dropped form a height of 50 cm. Find its kinetic en...
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- A mass of 10 kg is dropped form a height of 50 cm. Find its velocity w...
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- A ball of mass 0.5 kg slows down from a speed of 5ms^-1 to 3ms^-1, cal...
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- Which would have greater effect on the kinetic energy of an object-dou...
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- Name the energy transformation taking place in the following devices: ...
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- How much the work is done, when earth moves around the sun in its orbi...
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- A 5 kg ball is thrown upwards with a speed of 10ms^-1(g=10ms^-2) Cal...
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- A 5 kg ball is thrown upwards with a speed of 10ms^-1(g=10ms^-2) Fin...
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- Calculate the electricity bill amount for a month of April, if 4 bulbs...
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- An object is made to fall from different heights 20 cm, 40 cm and 60 c...
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