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calculate the temperature at which air possesses a density equal to that of hydrogen at 0 degree celsius.Density of air at NTP
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the frequency of a source is 20KHz. THE FREQUENCIES OF SOUND WAVE PRODUCED BY IT IN WATER AND AIR WILL BE.
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find the area of the sector with 80 degree angle and radius=8
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five sentences oncarrot,potatoin general
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y=2+3
probality
