What is Kinetic Energy ?

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For projectiles fired at identical speeds but various angles from the ground, neglecting air resistance and the curvature of the earth, at what angle will the maximumhorizontal distance be attained?

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Describe the Thermos Flask?

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What is sound?

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Please define e.s.u. it is the unit of ...... It is equal to .....

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who described the theory of ionization?

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what is the mean of g= 9.8m/s2. waht is the mean of unit m/s2

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Which of the surfaces of a thermos flask are silvered and why?

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What is the shadows?

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What is moment of inertia?

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What is meant by energy spectrum of a black body? : quantum physics

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Explain what is optical medium?

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