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प्रश्न
Does the earth move around the sun with a uniform velocity?
उत्तर
No, the earth moves round the sun with a variable velocity. Since the direction of motion changes at each and every point the velocity becomes variable.
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संबंधित प्रश्न
A coolie does no work against the force of gravity while carrying a luggage on a road.
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State the S.I. unit of work and define it.
Define 1 joule of energy.
The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N?
Define 1 joule of work.
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Give two examples of work done.
Fill in the boxe to show the corresponding energy transformation.
Give an example
Chemical energy changes to electrical energy.
State larger units of power.
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A green plant is carrying out photosynthesis.
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