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R G PUBLICATION-WORK AND ENERGY-EXAMPLE
- Define 1 watt of power.
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- A lamp consumes 1000J of electrical energy in 10s. What is the power?
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- Define average power.
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- An object thrown at a certain angle to the ground moves in a curved pa...
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- A battery lights a bulb. Describe the energy changes involved in the p...
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- Certain force acting on a 20 kg mass changes its velocity from 5 m s^-...
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- A mass of 10 kg is a point A on a table. It is moved to a point B. If ...
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- The potential energy of.a freely falling object decreases progressivel...
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- What are the various energy transformations that occur when you are ri...
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- Does the transfer of energy take place when you push a huge rock with ...
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- A certain household has consumed 250 units of energy during a month. H...
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- An object of mass 40 kg is raised to a height of 5 m above the ground....
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- What is the work done by the force of gravity on a satellite moving ro...
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- Can there be displacement of an object in the absence of any force act...
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- A person holds a bundle of hay over his head for 30 minutes and gets t...
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- An electric heater is rated 1500 W. How much energy does it use in 10 ...
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- An object of mass, m is moving with a constant velocity, v. How much w...
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- Calculate the work required to be done to stop a car of 1500 kg moving...
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- Soni says that the acceleration in an object could be zero even when s...
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- Find the energy in KWh consumed in 10 hours by four devices of power 5...
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