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A disk defamation horizontally on a frictionless, mass less, rotational motion support such that the disk is spinning freely about a vertical axis through the centre of the disk and perpendicular to the face of the disk. A second disk the same to the first disk is held in place a negligible height immeasurably close however not touching above the first disk. The second disk is aligned therefore perfectly with the first disk that the axis of rotation of the first disk also passes through the centre of the second disk. The person embracing the second disk drops it onto the first disk and the two disks spin as one. Is mechanical energy preserved in this process?
A 30-g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?
Explain about the term intrinsic sensors. Intrinsic sensors: Optical fibers can be utilized as sensors to measure temperature, strain, pressure and other quantities by chang
Explain fitting and fixture. In the industry, all terms are used indistinctly and frequently together. Several manufacturers describe fittings as the fixing elements, as connec
A horizontal ray hitting a prism with n=1.5, tip angle α=4 o . The ray will be deflected by an angle δ=(n-1)α. The ray is further reflected by a vertical mirror. Now, if I want to
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
newtons third law of motion
Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength. λ = 12.27 A o / √V λ = 12.27 A o / √10 4 = 0.1227
A 95.7-nm film of an unknown substance is able to prevent 555-nm light from being reflected when surrounded by air. What is the index of refraction of the substance 2d
Light described at a place by the equation E=100[sin(5*10^15)t + sin(8*10^15)t] falls on the metal surface having work function 2eV.calculate the maximum kinetic energy of photoel
with surface charge density sigma
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