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What is meant by the rest mass energy of an electron?
According to the Einstein's Theory of Relativity, the mass of a body (say a particle) occurs on the energy and on the momentum (velocity) with which the particle moves. So, we have a problem: is there a mass value that each observer can relate to? Yes: is the rest mass, that is the mass you could calculate in a frame of reference co-moving with the particle (in which the particle is still), that is the center-of-mass frame and that agree with the minimum value measurable for each observers.
Has Vc a limit? Answer; precisely, but we do not know its limit. But we know it is greater than c.
why value of g at center of earth is zero?
Angle of friction is the angle between the resultant vector(resultant vector:-resultant vector of frictional force and normalforce) and normal force vector.
relativity and conservation law
A pure semiconductor under ordinary conditions behaves like (A) A conductor. (B) An insulator. (C) A magnetic material. (D) A ferro-electric material. A
For the square voltage waveform displayed on an oscilloscope shown in Figure, find (a) its frequency, (b) its peak-to-peak voltage.
Energy gap: 2.4ev. The colour of pure cadmium sulphide is pale yellow. It melts only under at high temperature. It can be prepared in the resistivity range from 10 to
graph
what is elastic fatigue
A 400kVA transformer has a primary winding resistance of 0.5Ω and a secondary winding resistance of 0.001Ω . The iron loss is 2.5kW and the primary and secondary voltages are
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