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Viscosity in fluids is the analog of friction in solids. Both are methods by which the kinetic energy of moving bodies can be changed into thermal power. In the absence of friction force, a part of block could slide at constant speed with a horizontal surface in the same way; an object going by a no viscous fluid would experience no viscous drag friction. Lord Rayleigh has noticed out that, in a perfect fluid, a ship's propeller would not work but, on the other hand, a ship could not need a propeller.
If Young' two slit interference experiment is done with white light what could be seen?
A boy throws a ball of mass 20 kg vertically upwards.It raises to a maximum height of 100 m.At what height will the kinetic energy be reduced to 70%?
why The magnitude of known potential difference must be greater than the value of unknown potential difference to be measured.
A thin rod of length 1 m is fixed in a vertical position inside a train, which is moving horizontally with constant acceleration 4 m/s2. A bead can slide on the rod, and friction c
what is the dimension and unit of bulk modulus,stress,strain and moment of interia
1. You now pass the signal + interference through a 2-section 1.0 kHz low pass filter with a rolloff of 40 dB/decade. Make a plot of the waveform of the filter output over the time
Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.
A thin uniform rectangular sign hangs vertically above the door of a shop. The sign is hinged to a stationary horizontal rod along its top edge. The mass of the sign is 2.40 kg and
Why there are two propellers in helicopter
A block of mass 2 kg is pulled up on a smooth incline making angle 30 degrees with horizontal . if block moves with an acceleration of 1 m/s2 , find a) Power delivered by the pull
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