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I have taken none of them....
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For extracurricular activities, IIT M is the best :D
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gram atom ~ 1 mole of atoms
gram moleclule ~ 1 mole of molecules
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If it doesn't act towards the centre, it cannot be called centripetal force..
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Mukesh, you've got it wrong....... this is not supposed to be a question....
The force that acts towards the center in circular motion is called centripetal force...... that's how it can be defined... so, it's something like a definition..you cannot question a definition
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No, they cannot be proved wrong... , except in the case when the mass is variable...
Even in this case, the third law is valid....
Actually, you need not consider Newton's laws as laws at all... they follow from the definition of force, and from the principle of conservation of momentum...
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Try to calculate the magnitudes of the two forces between fundamental particles like Protons or electrons... u'll understand the reason
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good, but useless I guess....
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I used to sleep for 6 1/2 hours/night...... 10 PM to 4 30 AM....
and then from 7 50 to 8 30, 12 45 to 1 10(inorganic chem and physics)... about 8 hours on whole.....
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And I've read some posts.. about the percentage of brain that we use.. different parts of the brain have different functions... I've never seen a person with a homogeneous brain... and I have no hopes that I would ever see one.. if anyone here has seen such a person... I'd love to know about them...
It's all about the efficiency... let me give an example.. think about Rahul Dravid's batting in a test match and Sanath Jayasuriya's batting in T20.. and you'd understand what I mean when I say 'efficiency'.....
and about that OM chanting.. it has been an ancient practise... and I give it much credit ... ancient Indians did everything with a purpose, though their followers who couldn't make anything out of them became superstitious about them.. and I've read somewhere that this word 'OM' when chanted makes your muscles stress in such a way that it benifits your body..... its up to you to decide whether you chant that or not....
And as I said, playing sports is still the better way...
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Use it....
that's the best way....
And about meditations and all..... you would soon discover that the best way to concentrate is play some game.. especially cricket... if you already do play cricket, and you turn out to be a good player, just recall if you ever thought of someone else or something else...like samosas, a bike, the morning newspaper, or anything else........ when you face a bowler... esp when he's about to deliver the ball....
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E, as you said is dV/dr...
dV refers to a small change in 'V'.... but the value of V remains constant....... -GM/R as you have said... and doesn't vary with the distance from the centre, r....
hence dV = 0...
therefore, E=0
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Everything's fine except that part where you stressed on a time table...
I don't think that everyone needs a time table.. while there are those students who are very serious and sincere about their studies, there are those who aren't as studious as the others, but still, they have some interest in that...
Such ppl find a time table very hard to follow and I suggest they go by their instincts, just read whatever they feel like reading
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