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Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/mole
sol) heat energy required = mcTmass=d.v=8933 . (.02)^3 = .0712 kg = 71.2 gmmo of moles = 71.2 / 63.55 = 1.12 molesc=24 j/k-mole.T=20H= (1.12) . 24 . 20 =537.6 Joules (ANS)
DC high-current measurement: In common with many simple multimeters, both analogue and digital, the high current range (e.g. 10A) is not only selected using the range selector
the loop shown at right, with
The force acting on a unit positive charge at agiven point in an electric in an electric field of a point charge of asystem at charges is called the electric field or intensity of
Suppose a fluid (say, water) occupies a domain D ⊂ R 3 and has velocity field V=V(x, t). A substance (say, a day) is suspended into the fluid and will be transported by the fluid
what are the structure of the seeds
Resistors of 20Ω ,20 Ω and 30Ω are connected in parallel. What resistance must be added in serieswith the combination to obtain a total resistance of 10 . If the complete
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In a young's double slit interference pattern, the fringe width is 0.1 mm. Determine the fringe width if the wave length of light is increased by 10% and the distance between the s
state and explain malus law?
What makes a good illuminator? Illuminators should perform three separate tasks along with a degree of efficiency. Initially must house a lamp and its transformer, power sourc
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