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A man standing 2040m from the foot of a high building claps his hands and hears the echo. 4 second later (speed of sound in air
1 answer
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At what situation an object that is submerged in to liquid will rise up
1 answer
162 views
A plastic cube having a side length of 10cm floats in fresh water. If the volume of thr cub3 that's submerged in water is 40% of
1 answer
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