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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)
The shear force of a cantilever beam of length L carrying a uniformaly distributed load W Per unit length is how much at fixed end
plz derive a equation to magnetic force between short magnetic dipoles at distance apart?
mechanical wave
The retina – the light detector of the eye: The physical aspects of the retina: 1.The absorption of a light photons in a photoreceptor triggers an electrical signal to the bra
A transformer takes a current of 1A when its primary is connected to a 300V, 50Hz supply, the secondary being on open-circuit. If the power absorbed is 120watts, Determine
Arago spot (D.F.J. Arago) A bright spot which appears in the shadow of a uniform disc being backlit through monochromatic light emanating from a point source.
The earth "spins" (rotates) on its axis based on the action of the materials that accreted to form it, and also on any large collisions it might have undergone. Like the one in the
A commuter train blows its horn as it passes a passenger platform at a constant speed of 40.0m/s. The train horn sounds at a frequency of 305 Hz when the train is at rest. (a) W
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The refractive indices of a double refracting crystal for extraordinary and ordinary ray are 1.584 and 1.592 respectively for wavelength 5600A 0 . Calculate the thic
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