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A galaxy in the constellation UrsaMajor is receding from the earth at 15,000 km/s. If one of the characteristic wavelengths of the light the galaxy emits is 550 nm, what is the corresponding wavelength measured by astronomers on the earth?
For the intermediate calculations, see that
Here the sign convention for v, that v positive for an approaching source and negative for a receding source. In this problem,
u/c = - ((1.50 x 107 km/s)/(3.0 x 108 m/s)) = -0.050.
Therefore,
Faraday's laws of electrolysis (M. Faraday) Faraday's first law of electrolysis At time of electrolysis the amount of chemical change is proportion
What is the fractional change in the resistance of an iron filament when its temperature changes from 25.0°C to 50.0°C?
Number of neutron in C 12 is (1)6 (2)7 (3)8 (4)9 Ans: (1)6
a) The molar mass of air is 28.97 kg/kmol and the universal gas constant is 8.314 kJ/(kmolK). Show by calculation that the particular gas constant of air is around 0.287 kJ/(kgK)
Q. Find the effectual resistance between A and B. 1/R p = 1/R 1 + 1/R 2 R p = R 1 R 2 / (R 1 + R 2 ) = 15 X15 / 30 = 7.5 ohm
#question kalari meter
The magnetic induction at a point 15 cm from a long straight wire carrying a current is 4 X 10 -6 T Compute the current. (J - 12) B = μ o I/2πa I = 2πa X B/μo Current I
how to make an affective assignment on inertial frame of reference and using it the explanation of relative motion? to be noted i am a university student.
what is radiation
If a great point-mass is removed by a weightless, inextensible and perfectly flexible string from a rigid support, then this arrangement is known as a simple pendulum.
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