When a toy balloon is filled with air and then the air is allowed to go out, why dies the balloon whiz away ?

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Explain Conductors ?

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Explain how many more times louder is 70 decibels than 10 decibels?

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What is the shadows?

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dear sir i need rrb chennai Section engineer S & T for last 2 year question papers. Plz send my email id is gsmaliniraj@yahoo.co.in, malinisankaram@gmail.com

0 Answers   RRB,

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What is fluorescence?

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What is the formula of velocity?

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When a porcelain dish or a glass material are falling on the floor, it breaks but on falling on sofa or sponge it will not break. Why?

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Is negative mass antimatter?

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I have energy of (220V*1A=)220W. I want to convert it into (12V*15A=)180W. Is this possible? If yes, then how?

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Explain about Gases ?

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Explain what does gravitational force depend on?

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