Que 1 : A heave mass is hanging from a string in equilibrium without breaking it . When this same mass is set into oscillations , the string breaks . Explain ?

 

Que 2 : After a good meal at a party u wash ur hands and find that u hav forgotten to bring ur handkerchief . U shake ur hands vigorously to remove ht ewater as much as u can .Why is water removed in this process ???

 

Pls post solutions with explanation !!!!!!

Here are a few questions on the friction -

Que 1 : You are standing with your bag in your hands on the ice in the middle of a pond . The ice is so slippery that it can offer no friction . How can u come out of it ?????

 

Que 2 : While walking on ice , one should take small steps to avoid slipping . This is bcoz smaller steps ensure -

(a) larger friction

(b) smaller friction 

 

Pls post solutions with explanation !!!!!!

Which is the most electropositive element in the periodic table ?????

Cesium (Cs) or Lithium (Li) ???

Pls give proper explanation !!!!!

hey all !

Please tell the mistake in my solution . I have solved the denominator and then applied quotient rule . But the answer I am getting is different . I am getting (x-1)^2 (x-2)^2 (x-3)^2 in the denominator . Numerator is same . Pls explain !!!!!!!

Hey anurag ,

yes , I also got 27 as the answer . My approach is just as yours . I dont think the answer is wrong !!!

Hi Aakriti ,

You can see the explanation on all parts in this post .If there's still a problem ,you can post this problem in expert panel to get there views about this question !

Hey vasanth ,

I solved the denominator and then applied the quotient rule of differentiation . I hope my method is correct ?

Pls check and reply !!!!

Hey sravan ,

can u pls tell me the answer to que-7 from the top (about hell and heaven) . I thought a lot about it but couldn't get it . Pls reply as soon as possible !!!!!!!

Thanks !

Hey all !

well , I also think that weight remains same provided the max. height of projectile is very small as compared to the radius of the earth .Hence , for small heights , weight is mg

Hey toshi ,

can u pls tell the correct answer ???

I think its 12x - 3x^2 - 11 divided by (x-1)^2 (x-2)^2 (x-3)^2

Pls confirm !!!

Hey dude !

I hope u dont mind explaining the answer !!!!!