Which property of sound is affected by change in air temperature?

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When a glass cylinder is filled with water and a piece of thick paper is placed at the mouth and the cylinder is inverted, the paper dies not fall. Why ?

2 Answers  

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What is the effeciency of solar cell (Current year)

0 Answers   Ecil,

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a car is travelling at 72kmph, and if that car slows down to 60kmph it takes an extra 1 hour to cover that same distance. at 72kmph, how long did it take for the car to cover that distance?

2 Answers  

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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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What is the Magnet substance ?

1 Answers  

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You want to magnetize a metal. How would you do that?

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Explain the name for the physical constant with a value of 6.62 x 10-27 erg seconds?

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Why a boat rise higher, when it passes from the river water to sea water ?

1 Answers  

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Explain the working of basic rubber ink filler

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What happens, when a magnet is floated on a big cork in a through of water ?

1 Answers  

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Which lens is used for correcting short ?sightedness ?

1 Answers  

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