What is the Dry Ice?

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What is the second law of thermodynamics?

1 Answers   HPCL,

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What affect does electricity have on soil?

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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?

4 Answers  

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why velocities of x rays and gamma rays are same inspite they have different wavelengths and frequencies

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With the formula Frequency=(np)/120 were does the 120 come from I realize it to be a constant but how was it determined

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Dear sir i need central bank of india clerical grade last three year question papers. Kindly forward to my email id gsmaliniraj@yahoo.co.in, malinisankaram@gmail.com

0 Answers   Central Bank of India,

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Explain the Heat Engines ?

1 Answers  

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The system shown in the figure is in equilibrium. The metal spheres are identical and each has a mass of 2 kg. The surface areas of the pistons are equal and 100 square centimeters each. The density of water is 1 g per cubic centimeter. Assuming that the frictions and masses of the pistons are negligible, what is the mass of G? ( g = 10N/kg )

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Explain virtual image?

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Explain what is a crest?

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When we jump form the boat to the bank why the boat goes backwards from the bank ?

1 Answers  

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