Physics, Chemistry, Mathematics Forums

ok siddhant if u say it is right only 4 x=o

what can u say 4 this

x² can b written as

x+x+x+x+x+x+.......(x times)

After differenciating this can also be written as

1+1+1+1+1+1+1+.... (x times)+

1+1+1+1+1+1+1+.....(x times)+

1+1+1+1+1+1+1+.....(x times)

the above whole thing    x times 

now differenciate u will get

 0+0+0+0+0+0+0+0+.....(x times)

therefore d/dx of x² is 0

Hello,

         can anyone tell me what are the changes in IUPAC rules of nomenclature.also please tell the web adress of IUPAC and also the website where can i ask IUPAC doubts of other concepts (such as atomic structure).

        

in jee numerical should be evaluated with ans +-10 for quesin which students r getting big ans

Welcome to this new advanced forum.  This forum also allows you to post mathematical symbols besides many other features.  You will learn more and more by experimentation.  Don't worry to make mistakes when you post a message as you can change it within next 30 minutes.

Here is an example:

can someone help me out here?

there is an inclined plane,a hollow sphere ,solid sphere ,and disc of same masses'M' and radius 'r'(same for all.)

the plane is rough but the friction is not enough to aid pure rolling

which one will reach he botom of incline earliest.

1.     What is meant by a head-on collision? I mean to ask that if in a question, it is mentioned that two bodies are undergoing head-on collision, then how to use this information while solving the problem?

2.     If all the particles of a system lie in X-Y plane, then is it necessary that the center of mass be in X-Y plane?

3.     If all the particles of a system lie in a cube, then is it necessary that the center of mass be in the cube?

4.     Can the linear momentum be conserved in a non inertial frame? Why/why not?

5.     Does the result “velocity of approach = velocity of separation” hold well in an accelerating truck? Why/why not?

6.     What is the difference between a particle and a rigid body?

1.     On page no 149 of H.C.Verma (vol 1) it is written that in the case of elastic collision in 2 dimensions “ the final motion depends on the angle between the line of force during collision and direction of initial velocity. The momentum of each object must be individually conserved in the direction perpendicular to the force. ”

 

a)     What is this line of force?

b)    Why does the final motion depend on the angle between the line of force during collision and direction of initial velocity?

c)     Why the momentum of each object must be individually conserved in the direction perpendicular to the force?

CAN ANYONE PLEASE TELL ME A GOOD BOOK FOR NOMENCLATURE OF ORGANIC COMPOUNDS.

HELLO FRIENDS,
PLEASE SOLVE THIS PROBLEM.

There is a charged ring of radius R which is charged uniformly with a charge Q.A sphere of equal radius R is constucted with its center on the circumference on the ring.What will be the electric flux through this sphere.

thank you.

(1)The median AD of triangle ABC is bisected at E,BE meets AC in F then AF:AC

(a)1:3 (b)1:2 (c)3:4(d)1:4

(2)CH₃-CH₂-CO-¹⁸O-CH₂-CH₃+NAOH

which bond is broken???