Recent content by srikanth.isro

Homework Statement Is is possible to have a change in kinetic energy without providing an external force. Homework Equations The Attempt at a Solution I want some examples of the above mentioned problem. In radio active decay the alpha particles are coming out from the nucleus...

You can try Schaum's outline series on Differential equations. It gives a lot of worked out problems with application.

By Newton's 3rd law forces come in pairs only. q2 is pulling q3 along the positive x-axis and at the same time q3 is also pulling q2 along the -ve x-axis with the same magnitude. Acctually they are equal and opposite forces.

First thing to be remembered in calculating the force is don't use the sign of the charge in the equation. Try to see the direction in which the charge will move. In the first case the charge q3 will be repelled by charge q1 and it will move towards right with a force 1.18x10^-4N. In the second...

1)P and R can be any matrix of the same order as that of Q and Q must be a null matrix. 2)All the three should be identity matrices of the same order.

I agree with your argument. can you show with a free body diagram how these four forces act on the bird.

i think that there can't be a motion in the horizontal direction with constant velocity when there is an acceleration in the downward direction. If the bird flies at an angle then the vertical component of the force will be compensated by mg and still there will be a net horizontal component of...

Homework Statement Is it possible for a bird to fly in a cage with a constant horizontal velocity when there is an acceleration acting in the vertically downward direction. Homework Equations The Attempt at a Solution

When the charges are at rest, the only force between them is the electrostatic force. But when the charges move with a velocity then a magnetic field is produced around them.