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Hubble's law (E.P. Hubble; 1925):
A relationship discovered among distance & radial velocity. Further away a galaxy is away from is, the quicker it is receding away from us. The constant of proportionality is Hubble constant, H0. The cause is interpreted such as the expansion of spacetime itself.
Magnitude of K.E. in an orbit is equal to: (1)Half of the potential energy (2)Twice of the potential energy (3)One fourth of the potential energy (4 ) None
Distinguish among diamagnetic and ferromagnetic materials in respect of their (i) intensity of magnetisation, (ii) behaviour in a non-uniform magnetic field and (iii) susceptibilit
A universe is spatially flat, and contains both matter and a cosmological constant. For what value of Om,0 is t0 exactly equal to H0 -1?
Ngan has a weight of 314.5 N on Mars and a weight of 833.0 N on Earth. a. What is Ngan's mass on Mars? b. What is the acceleration due to gravity on Mars, g Mars ?
a loaded trunk weighs 80 kn and accelerates uniformly on a level road from 4.5m/s to 9m/s during 4s.if the frictional resistance to motion is 1.625kn , determine the maximum power
Describe concept about vibrational modes of carbon dioxide molecule. Vibrational Modes of CO 2 molecule While excited, the CO 2 molecule vibrates as masses joined by a spr
a detailed assignment
The weighted rod floats with 6 cm of its length under water [density 1000 kg/m3]. What length is under the surface when the rod floats in brine [density 1200 kg/m3].
Q. Write any three applications of laser in industry. Industrial applications (i) The laser beam is utilized to drill extremely fine holes in diamonds hard sheets etc.
Three inductive loads, each of resistance 4Ω and reactance 9Ω are linked in delta. When linked to a 3-phase supply the loads consume 1.2kW. Calculate (a) The power factor of
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