Question
Give postulates of Dalton's atomic theory.
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What is the actual shape of the orbit of a planet around the sun? What assumption was made by Newton regarding the shape of an orbit of a planet around the sun for deriving his inverse square rule from Kepler’s third law of planetary motion?
What is the intensity of sound wave? Give its relation with amplitude.
Explain why, the tip of a sewing needle is sharp.
The tip of a sewing needle is sharp.