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hi! Flux through the faces touching the charge is zero because the Electric field is parallel to them. And flux through each face = ∅/24, since you have 24 faces in the cube diagram you attached.

No, I tried the relation E2 = m2c4+p2c2 also, am not getting right answer. There are no explanations of this in my text graduation textbooks. These are pg level questions. I did substitute E2 = M2c4 (initial energy) and onto r.h.s, p2c2+m2c4+p2c2 - p2c2 is the kinetic energy of the massless...

When x=0, y=1 and there on as x is increasing, value of y is decreasing..

Homework Statement A particle of mass M decays at rest into a massless particle and another particle of mass m. The magnitude of the momentum of each of these relativistic particles is: Homework Equations E = γmc2; p=γmv The Attempt at a Solution Pf-Pi = 0; but the particle is at...

Am unable to get it properly, am no good in mathematics. If u can pls explain it and give an answer since I have an entrance exam next week, I will be very thankful.

am getting 2 cases. either a=1 or sech2 ax=1.

1-tanh2 ax; so for that eq. tanh2 ax = 0 is final result.

first derivative of the equation = 0 gives the slope.

oh! slope is zero.

I have a doubt. x=0 is a root of this eq and since its a linear eq, it has only 1 root?

Is it a?

hi! I didnt get that beta>1 part. You mean to say, the equation has 3 roots-0,1,-1? Please let me know, am too stuck with the same problem.

Can anybody help me with this equation? I need answer for the question, how many real solutions does the equation x-tanh ax = 0 have for a>1?