What is centigrade thermometer ?

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what is gravitational force?

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How does a sound wave travel in air?

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Why dies a piece of iron sink in water, while a ship remains floating ?

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When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts a) In the backward direction on the front wheel and in the forward direction on the rear wheel. (b) In the forward direction on the front wheel and in the backward direction on the rear wheel. (c) In the backward direction on both the front and rear wheels. (d) In the backward direction on both the front and rear wheels.

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Why does a semicondctor act as an insulator at 0'k and why its conductivity increases with increasing temperature?

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whether egg or hen came first

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i applied airports authority of india in jr ATC .please inform how to read &what's syllabus i preparing is best.u send previous papers in mail...

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Which property of the rain coat makes it water proof?

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while calculating KVA using Volt and Ampere Reading, why we multiply the result with Square Root of 3 (i.e, 1.73)?

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Explain the Uniform Velocity ?

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What happens when you travel across the dateline?

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