Recent content by cosmicraj

Do any waves other than EMR show Particle Behavior in nature (Like Sound Waves or Water Waves etc)? In Photo Electric Effect We have considered that the light as packets of energy? but it's equation of energy is \hbar \omega (h bar*omega) and this\omega is the angular frequency of wave. I...

Do any waves other than EMR show Particle Behavior in nature (Like Sound Waves or Water Waves etc)? In Photo Electric Effect We have considered that the light as packets of energy? but it's equation of energy is \hbar \omega (h bar*omega) and this\omega is the angular frequency of wave. I...

See the Electrostatic Force can apply for any two point charges

Watch ,MIT OCW lectures by Walter Lewin http://ocw.mit.edu/courses/physics/8-02-electricity-and-magnetism-spring-2002/video-lectures/

For understanding D alembert's pinciple. one should know the principle of virtual work.

thnx

See,the velocity of bee will become zero and reverse its direction ,but train is going in the same directon.it can not change because momentum of bee is nothing compared to the momentum of of train

Hey I think that is possible because you said that m=1 Kg max friction force=1N okay, see when the car will move it's equation will be x comonent F(applied force)-f(friction force)=ma if you raise your applied force you will get acceleration greater than 1m/s2

I could not understand the Principle of virtual work. Suppose we have two (x,y,t) [at two different points].By principle of least action we will get a trajectory such that it minimize lagrangian. Does the principle of virtual work say that it will vary the path a little but having the same...