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IMPULSE:
When a force acts on a body for a very short time, the product of the force and the time for which the force acts, is called the impulse or impulse of force".
Two concentric conducting shells a and b are of radii R and 2R. A charge +q is centred at their center. Shell b is then earthed and a is given charge q. Find the charge on outer su
A 50.0-g toy car travelling with a velocity of 3.00 m/s due north collides head-on with a 180.0-g fire truck travelling with a velocity of 0.50 m/s due south. The toys stick to
A ball leaves a girl's hand with an upward velocity of 6 meters per second. What is the maximum height of the ball above the girl's hand? Ans: A ball leaves a girl's hand w
It is the product of either change in an electric dipole with the distance separating them.
show that in a glass prism that the refractive index n = sin1/2(A+Dmin)/sin1/2A where a = refracting angle. hence if the angle of incidence i on oan air boundary is 60degrees. calc
difference between pure and impure spectrum
Plot the Bremsstrahlung emitted (intensity vs energy) from a copper target for (i) both 15 keV and 30 keV electrons, (ii) for 15 keV electrons at both 10 and 50 mA current and (iii
2. The earth’s rotation about its axis changes measurably over time; see http://en.wikipedia.org/wiki/Leap_second and http://en.wikipedia.org/wiki/Tidal_acceleration for detai
What are basic attenuation mechanisms in a fibre? The fundamental attenuation mechanisms into a fibre are as follows: a. Absorption b. Scattering (Mie and Rayleigh scatte
In an expression ½kx2 for the potential energy accumulates in the spring what does the x represent? Answer: Quite frequently we consider there to be an object at
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