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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.
An object with a mass of 5 kilograms is a distance of 5 meters above the surface of the earth. If the acceleration because of gravity is 10 meters per second squared, the pote
Simple 'spring' balance Punch four holes in an old tin lid with a nail, spacing them partially round the circumference. Pass pieces of string by these holes and tie them togeth
a) What force is needed to give amass of 20kg an acceleration of 30m/s 2 ? b) Find the accelerating force when a car having a mass of 1.7Mg enhances its speed with a constant a
The wrench shown in the figure is designed for access to the bolt at O. The wrench lies in a vertical plane and a horizontal force of P27 (as in question 14) is applied at A perpe
Krusty the Clown and Sideshow Bob have covered themselves in velcro, and shot themselves out of a large cannon so that they stick to a huge rotating velcro wheel (don't try this at
A mild steel closed magnetic circuit has a mean length of 75mm and a cross-sectional area of 320.2mm 2 . A current of 0.40 a flows in a coil wound uniformly around the circuit
applications of statically induced emf and dynamically induced emf
The fundamental particles: Although other atomic particles are known, the three fundamental ones are: Protons. The proton has unit mass and carries a unit positive charge.
A physics student performs a double-slit diffraction experiment on an optical bench, as shown in the figure below. The light from a helium-neon laser has a wavelength of 632.8
what is energy distribution function
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