A conducting sphere of density

floats in a liquid of density

and permittivity k. The sphere is submerged in the liquid to less than half its diameter . What charge must be imparted to the sphere so that it is half submerged into the liquid ? The radius of the sphere is equal to a.

Find the electric field intensity at the center of

1.A quarter ring   2.semi-circular ring         3.3/4 th of the ring        4.a ring

Please calculate yaaaaaaaaaaar . ans is not coming

In my opinion no one can solve this question

A substance decomposes according to second order

rate law.If the rate constant is                              

6.8 x 10^-4   /mole/s,Calculate half - life of the

substance if the initial concentration is 0.05 mole/L.

I am not understanding.someone please explain. rates assured

A living plant acquires a definite of ^14₆C nuclei in  

carbon content.If a

freshly cut piece of wood gives 16.1 counts per minute per grams

 and an old wooden bowl gives 9.6 counts per minute per grams of

carbon , calculate the age of the wooden bowl.The half-life of ^14₆C is                                                                                                                     5770 years.

ANSWER==4304 years

No Ashish answer is 0.47.Please explain how u proceeded?

Is the test conducted by I-desire and paradise in patna is very tough.What is the level of the difficulty

In the thermal decomposition of C₂H₅Br . o  C₂H₄ and HBr , the

pressure changed from an initial value of 200 mm Hg to 390 mm Hg at

the end of the reaction.What fraction remained unchanged when the

pressure of the mixture was 300 mm Hg?

ANSWER==0.47

K depends only on temperature when the reaction is of first order.But it is not given in the question,so how can u substitute the value,please explain/

How can the value of K can be same, it is not given in the question that the reaction is of first order

Yes, ashish ,u are right, but please explain the methods

For the nonequilibrium process A + B ------------P,the reaction is of first order with respect to A and of second order with respect to B.If 1 mole each of A and B are introduced into a 1- liter flask, and the initial rates were 1 x 10^-2 moles/liter .s,Calculate the rate when half the reactants have converted to the products.