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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.
Mediocrity principle: The principle that there is nothing specifically interesting regarding our place in space or time, or about ourselves. This principle possibly first made
What is the ratio of mass of an electron to the mass of a proton: (1) 1 : 2 (2) 1 : 1 (3) 1 : 1837 (4) 1 : 3 Ans: 1: 1837
A concentric tube heat exchanger is comprised of a thin wall inner tube of 25.4 mm diameter and an outer tube of 47 mm diameter. The heat exchanger is used for cooling lubricating
Actually vectors are divisible but not directly. A vector is multiplied by the inverse of the vector to be divided.In other way, its magnitude an be divided and multiplied by a uni
A train locomotive whose mass is 1 x 106 kilograms is travelling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomo
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
For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.
For a blackbody, the frequency at which maximum energy is emitted is 3 x 10 13 Hz: A. Give a wavenumber for the wavelength of the infrared emission? B. What is the tempe
We here at Brilliant assume that you work through these problems using some sort of writing utensil. Take your pen or pencil, balance it on its tip, and let go. It falls over. How
(1) F or supplying power from on alternating current power grid to equipment which uses a different voltage. (2) Electrical power transmission over long dist
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