Recent content by anand

I don't quite understand.

Someone please help...

Actually,the question was of an objective type,and the options involved only the sign of charge.Here are the four options given: a.possible only if q3 is positive b.possible only if q3 is negative c.possible irrespective of sign of q3 d.not possible at all So is the correct option c...

Homework Statement Two point charges + q1 and + q2 are fixed with a finite distance d between them.It is desired to put a third charge q3 in between these two charges on the line joining them so that the charge q3 is in equilibrium.What has to be the charge on q3 to make this possible/...

Homework Statement A combination of two thin convex lenses of equal focal lengths,is kept separated along the optic axes by a distance of 20 cm between them.The combination behaves as a lens system of infinite focal length.If an object is kept at 10 cm from the first lens,its image...

What about the second part?

Homework Statement A wheel of radius R rolls along the ground with velocity V. A pebble is carefully released on top of the wheel so that it is instantaneously at rest on the wheel. (a) Show that the pebble will immediately fly off the wheel if V> sqrt(Rg) (b) Show that in the case where V<...

Not Tipler. All I've done is collect the links to PDF files,from the course websites of various universities.Yes,they contain full solutions to most problems.

I have collected links to solutions of Kleppner and Kolenkow book here: http://physicscosmos.googlepages.com Hope you find it useful.

Thanks a lot!

Yeah,I don't really get it either.Someone please explain.Anyway,thanks in advance.

Here is how I did the first part: First find the total moment of inertia around an axis passing through the pivot.That would be 1/3 ml^2+1/2MR^2+Ml^2 The centre of mass of the system can be found,which is C=(ml/2+Ml)/(m+M) The component of the weight tangential to motion is (M+m)g...

Homework Statement Find the period of a pendulum consisting of a disk of mass M and radius R fixed to the end of a rod of length l and mass m.How does the period change if the disk is mounted to the rod by a frictionless bearing so that it is perfectly free to spin? Homework Equations...

Thanks. But what if I try to resolve the forces along the "upright" x and y axes,i.e,I get N cos(theta)=mg+mv^2/R cos(theta) and N sin(theta)= mv^2/R sin(theta) and the energy equation. Now,how do I find the theta at which N becomes zero(which is when it loses contact,right?)

Homework Statement A small block slides from rest from the top of a frictionless sphere of radius R.How far below the top,x,does it lose contact with the sphere?(Sphere doesn't move) The Attempt at a Solution The angle subtended by the block at the centre of the sphere can be taken...