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Questions: Physics

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Date Question Details
30.09.2011
an accidental short circuit to a 230V supply is caused by the connection of a component of 10 milli ohms across the supply terminals.what will be the short circuit current?
an accidental short circuit to a 230V supply is caused by the connection of a component of 10 milli ohms across the supply terminals.what will be the short circuit current? pls tell me how to solve it
0 answers.
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30.08.2011
What future technology will replace Blu-ray/Media via disc? 0 answers.
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08.12.2010
What is a Mobius Strip? Are there any examples in nature? 3 answers.
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07.10.2010
What is the difference between weight and mass? 2 answers.
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03.10.2010
What is the difference between volts and watts? 4 answers.
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18.07.2010
Is it actually possible to "bend a bullet" like in the movie "Wanted"? 3 answers.
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13.03.2010
which way does toilet water go when a toilet is flushed? 13 answers.
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20.01.2010
Is this a related question? OK, global warming is an issue. If we can't rectify it in the future what will happen?
Well! We are discussing global warming and what should be done about it. My question is. What will happen if we cannot stop the globe from getting hotter? Will nature rectify the problem or will the…
0 answers.
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09.01.2010
Is it possible to match natural frequency of the human body on a bicycle, and is it possible to feel?
I heard that the natural frequency of the body was equal to peddling at 90rpm. I measured the speed in which my feet would be peddling 90rpm at specific gears and tested it, but I didn't feel anythi…
1 answer.
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22.12.2009
What is the top speed a human has travelled? How Fast can human technology propel a person? 5 answers.
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03.12.2009
Is it possible to make a bubble ring?
In this video, http://www.youtube.com/watch?v=TMCf7SNUb-Q it looks like the doulphins have made bubbles into a ring shape. how is this possible? why don't they float to the surface?
1 answer.
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17.10.2009
Where can I find stats on energy usage from Cogen aka CHP in the US and Canada?
I heard Europe is at 10% I wonder what it is in America!!
0 answers.
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26.09.2009
How do I find the total heat flow into an ideal gas?
I have values for pressure and volume, but not temperature. I also found the work done by the gas (although i may have gotten that wrong). What do I do to calculate the total heat flow into the gas?
0 answers.
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10.06.2009
Heat Conduction
I have a study guide for an exam, and I am getting 8.3 * 10^6 Watts for an answer, but the key says the answer is only 83 Watts... Can someone help me? "One end of a 33cm long Al rod with d=2cm is k…
1 answer.
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09.06.2009
What is the greatest heat absorber known to man?
I am trying to make an energy efficient airconditioner without spending too much money.
5 answers.
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05.06.2009
How are Work and Internal Energy in the equation Q=W+dU related to Pressure and Temperature in the ideal gas law?
I know that volume is directly related to Work and temperature is related to Internal Energy, but what how does pressure fit in? In the ideal gas law or Gay-Lussac's law, what is the difference betw…
1 answer.
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26.04.2009
why is it in accourate to say that heavy objects sink and light objects float?
heres a nother one---- a one-kg block of iron and a one kg block of aluminum are submerged in water. upon which does the greater buoyant force act? why compared with an empty shi would a ship loaded…
2 answers.
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26.04.2009
what is the byoyant force that acts on a 100-ton ship?(make things simple, give your answer in tons) 1 answer.
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26.04.2009
does the buoyant force on a floating object depend on the weight of the boject itself or on the weight of the fluid desplaced by the object? or are these both the same for the special case of floati… 1 answer.
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28.02.2009
Air Speed VS Ground Speed
What is the relationship?
1 answer.
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