Explain the law of machines?
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How is the index of refraction computed?
is a burning candle a undergoing a physicalchange
What affect does electricity have on soil?
The system shown in the figure is in equilibrium. The metal spheres are identical and each has a mass of 2 kg. The surface areas of the pistons are equal and 100 square centimeters each. The density of water is 1 g per cubic centimeter. Assuming that the frictions and masses of the pistons are negligible, what is the mass of G? ( g = 10N/kg )
What is L.D.R(light dependent resistor)
Please define e.s.u. it is the unit of ...... It is equal to .....
What is the ray of light?
What is the difference between intrinsic and extrinsic semiconductors?
What is parallel force?
What is the cause of brownian motion?
What is radium used for?
What is channel?