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sir in books like hc verma i have seen if centre of mass remains at rest... then mx = mX...how?
Ask question #Minimum 4. Determine the strength of a lens needed to allow a person with a far-sighted eye with a near point of Pnar= 2.0 m (near point means the closest distance f
What is Equipotential Surface Equipotential Surface - surface of constant potential. No work is required in moving charges with such a surface. Electric fields are perpend
Two 1100-kg cars are travelling 95 km/h in opposite directions when they collide and are brought to rest. Estimate the change in entropy of the universe as a result of this collisi
It explains that when an object is immersed partly or completely in a liquid, it loses in weight similar to the weight of the liquid displaced by it. Let w1 be weight of an obje
Rayleigh-Jeans law For any blackbody at thermodynamic temperature T, the radiancy R onto a range of frequencies among nu & nu + dnu is provided by R = 2 pi nu 2 k T/c 2 .
Q. What is an optical fibre and dispersion? Write the expression for angle of deviation.
Q. How greatly does automotive oil weigh? Answer:- As a rough guide engine oil typically weighs about 0.87 kg/litter or about 7.2 pounds per US gallon. Regrettably a rough
2 upright plane mirrors are 4 meters apart and facing each other. A man stands 1 meter in front of them. Determine the distance between the second images in the mirror
what will happen if we place a glass with the size of the earth at a distance of 10 light years apart
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