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R G PUBLICATION-WORK AND ENERGY-EXAMPLE
- When do we say that work is done?
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- Write an expression for the work done when a force is action on an obj...
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- Define 1 J of work.
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- A pair of bullocks exerts of force of 140 N on a plough, The field bei...
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- What is the kinetic energy of an object?
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- Write an expression for the kinetic energy of an object.
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- The kinetic energy of an object of mass, m moving with a elocity of 5 ...
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- What is power?
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- 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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