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Physics
Subjective Question Determine the angular speed with which the earth would have to rotate on its axis so that a person on the equator would weigh (3/5)th as much as at present. Take the equatorial radius of the earth = 6400 km.
Chemistry
Fill in the Blank : When there are two electrons in the same orbital, they have .............spins.
Mathematics
True or False There exists a values of between 0 and 2 which satisfies the equation sin⁴ - 2 sin² - 1 = 0.

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