A very distant galaxy has an apparent bolometric magnitude
A very distant galaxy has an apparent bolometric magnitude of +23.5. Determine the measured flux of photons (m-2s-1) at the top of the Earth's atmosphere, assuming that the spectrum is the same as that for our Sun.
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A star with a surface temperature of 19,000 K and a radius of 3.7 X 106 km is located at a distance of 520 pc from the Earth. What is the luminosity of this star
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A 2-kHz sound wave traveling in the x-direction in air was observed to have a differential pressure p(x,t) = 10 N/m^2 at x = 0 and t = 50 μs. If the reference phase of p(x,t) is 36 degrees, find a complete expression for p(x,t). The velocity of
A very distant galaxy has an apparent bolometric magnitude of +23.5. Determine the measured flux of photons
Assume there are five numbers stored in locations 20 to 24. Write a machine language program to add these numbers and store the result in location 25.
Rachels points out that Socrates and many other thinkers who believe in God have shown that even if one accepts a religious picture of the world that rightness or wrongness of our actions cannot be understood merely in terms of conformity to divin
A 5.16 multiply.gif 10-5 H solenoid is constructed by wrapping 64 turns of wire around a cylinder with a cross-sectional area of 8.80 multiply.gif 10-4 m2, Determine the change in the length of the solenoid
consider the (100),(110), and (111) planes in silicon. (a) which plane has the highest surface density of atoms. what is that density. (b) which plane has the smallest surface density of atoms. what is that density.
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