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Q. Why does heat makes matter to expand?
Answer:-
Water contracts as it cools similar to all other liquids until it reaches a temperature of about 4 degrees Celsius at which point it expands and begins to form into crystals and expanding approximately 9 percent.
What is dispersion? Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation o
A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of
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The vapour pressure of a substance at 20.0 o C is 38.1 kPa and its enthalpy of vaporisation is 49.6 kJ mol -1 . Estimate the temperature at which its vapour pressure is 80.0 k
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Displacement of aparticle moving along X axis .When velocity is Zero
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obtain expression for potential at point due to uniformly chargeddisc
Q. What are nuclear forces? The force which conquers the electrostatic repulsion between positively charged protons and binds the protons and neutrons inside the nucleus is ca
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