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![[Post New]](/templates/default/images/icon_minipost_new.gif) 28 Dec 2006 19:27:03 IST
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Hi The motion to be performed by a hula hoop artist has to be circle > If we take a solid steel bangle and keep a pencil on its interior and rotate it in a circle the bangle just rotates in circles and also the normal reaction countering the Mg of the hoop is done by the waist .
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28 Dec 2006 19:30:56 IST
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wow wonderfull questions.
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28 Dec 2006 19:40:15 IST
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I thank you akshat_spike2002 for giving me a wonderfull answer.
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Tomorrow never comes...
    
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28 Dec 2006 19:50:05 IST
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Answer To BOILING DROP :
Actually when water evaporates at that temp a layer of vapour is present between the drop and the hot plate . As vapour is a poor conductor the water drop can remain there for 1 minute .
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Accepting all friends requests....... |
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28 Dec 2006 20:09:44 IST
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Hmmm it seems sravan is saluting himself by using some other user name. Don't spoil the a game yaar.
If u r really intereested in kowing the answere then throw one by one.
Hope u understand.
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28 Dec 2006 20:35:54 IST
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Holy Cow!!!!!!!!!
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They say ITZ NOT THE APTITUDE BUT THE ATTITUDE WHICH DECIDES U R ALTITUDE . THEN WHY M I NOT AT THE TOP IN THIS SITE? LIFE IS JUST NOT FAIR. |
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28 Dec 2006 20:38:39 IST
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If what naren is telling is true then it is bad
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30 Dec 2006 15:32:37 IST
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you can find all of this questions in the link:
www.star.tau.ac.il/QUIZ/
star.tau.ac.il/QUIZ/
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Imagination is more important than knowledge
-------Albert Einsetein |
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30 Dec 2006 18:00:31 IST
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ANSWER TO THIN ICE QUESTION
If at normal freezing point of water only ice is present an applied pressure causes the ice to convert to liquid .The backward slope of the solid-liquid equilibrium continues up to 2045 atm and -22 deg celsius.Thus liquid water cannot exist below -22 deg celsius whatever the pressure.But a sufficiently large pressure can cause ice to melt at any temp above -22 deg celsius.As a consequence a thin film of water is formed which lubricates the skate.
THE FRACTURING OF ICE MAY OCCUR AFTER THE ICE SKATER HAS PASSED AS THIS PRESSURE IS SO HIGH
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8 Feb 2007 22:09:09 IST
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Need more questions?
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10 Feb 2007 12:18:38 IST
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Find the last physical scientist?
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10 Feb 2007 13:24:43 IST
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Can you please send more questions ? They are very interesting and hard too.
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