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State samples of bromine vapour are allowed to diffuse separately under different conditions; one in vacuum and the other in air. State and explain the observation made.
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It is easier to stop a saloon car than a bus moving at the same velocity. What is the reason?
Date posted: January 14, 2017 . Answers (1)
Explain why passengers are discouraged from standing on the upper deck of a double-decker bus.
An air bubble is observed to increase in size as it rises through a liquid column and bursts on reaching the surface. Explain this observation.
A half-metre rule of mass 50 g balances off-centre when a 20 g mass is suspended at the 2 cm mark. Determine the position of the pivot.
Factors that affect the rate of flow of heat through a metal conductor