a running man has half the kinetic energy that a boy of half his mass has.the man speed up by 1m/s and then has the same kinetic energy as the body. what were the original speeds of man and boy?
Monthly Archive: October 2011
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A rear view mirror used in a bus has a radius of curvature 3.5 m. If the driver of the bus locates a car at 10.0m behind the bus, find the position, nature and size of the image of the car.
f = r/2=-1.75
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Is there really a parallel universe?
As of now, the answer is not final. There are different ideas and explanation given on parallel universes. Some say if parallel universe are far away from
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How light has a dual nature?
A photon has zero rest mass. Explain how ?
(These questions were posted by Shubham SInha and Ritika Chatak)
The dual nature of light has been established through
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Find below the links to questions papers in Physics already available at our group of Physics websites
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An object is placed 18cm in front of a spherical mirror. if the image formed is 4cm to the right of the mirror calculate the focal length and radius of curvature? what is the nature of the mirror?
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