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Gravitational field can also be shown by lines of force. This is same in several ways as that of electric lines of forces. With one dissimilarity, electric charges are negative and positive which causes force of attraction among dislike charges and repulsion among like charges. While in phase of gravitation the force is always of attraction.
A line of force is drawn in such a way that at every point the direction of field is tangent to line that passes by the point. Thus tangent to any point on a line of force gives the direction of gravitational field at that position. Lines of forces are given in such a way that their density is proportional to the strength of field.
What is Power? Power is how fast work is done or energy is used. Example: Remember that cheeseburger (~1/4 pound) I lifted up one meter to do one joule of work? If you now
Copper losses: These losses occur because of ohmic resistance of the transformer windings. If I1 and I2 are primary and secondary currents correspondingly and R1and R2 are the res
Doppler Effect: Wave Fronts Describing the wave fronts of a wave for a moving source. The Doppler effect is a phenomenon experiential whenever the source of waves is moving al
Helium gas with a volume of 2.60 L, under a pressure of 1.30atm and at a temperature of 41.0 degrees, is warmed until both pressure and volume are doubled. a)What is the final temp
Explain the Natural Frequencies and Resonance Standing waves occur when the waves, like those in a vibrating piece of rope, are repeating so that there are places on the rope t
division
Determine the change in Entropy accompanying the isothermal expansion of 5 moles of an ideal gas to 6 times to its initial volume at 330 k. Differentiate between Helmholtz's and
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What is the name of the first American physicist to win two Nobel prizes? Ans: (John) bardeen was the first American physicist who win two Nobel prizes.
It is an instrument used to view pure spectrum. It makes dispersion without deviation with the help of n crown prisms and (n - 1½ flint prisms alternately arranged in a tabular str
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