According to the present estimates, the Universe is about ______ years old. A.14 × 107 B.14 × 109 C.14 × 105 D.14 × 1011

According to the present estimates, the Universe is about ______ years old. A.14 × 107 B.14 × 109 C.14 × 105 D.14 × 1011

If a giant star 100 times the diameter of the sun, is 1 parsec from earth, what would its angular diameter be?

I just really need help in astronomy

Object A emits most strongly at 400 nm, while object B emits most strongly at 800 nm. What can we say about their relative temperatures? A’s temperature is the same as B’s. Nothing. Temperature...

What’s a black hole? What’s the difference between a reflecting and refracting telescope?

What’s a black hole? What’s the difference between a reflecting and refracting telescope?

The possible answers are: in front of the star 4 degrees east of the star 4 degrees west of the star 3 degrees west of the star 3 degrees east of the star

I need to know how much we all paid and how much is 17 and 1/2 percent VAT. Is it add or times or is all of the formulas.

A. His Inertia would not change B. His Inertia would increase C. His Inertia would decrease D. It is Unknown how his inertia would change

?-The questions in this homework quiz all refer to the following graph: http://www.up-00.com/VERzSCdj It shows a black body spectrum for an imaginary star. (In reality, while real...

According to Wien's Law, how many times hotter is an object whose blackbody emission spectrum peaks in the blue, at a wave length of 450 nm, than a object whose spectrum peaks in the red, at 700 nm...

A formula from physics is λmax × T = 0.0029. This formula is called Wien's law, and it relates the wavelength of the peak of a blackbody spectrum (your answer to question 1), to the temperature of...

Earth, Jupiter, Saturn, and Uranus all revolve around the sun. Earth takes 1 year, Jupiter 12 years, Saturn 30 years, and Uranus 84 years.

I am stuck on this one question on my science homework, and I would like to know how to answer it so I can be ready for a quiz, too. Please help. Suppose a comet passes the sun every...

I am trying to calculate the number of asteroids in our solar system based on how often they hit the earth. I feel like there must be a mathematical relationship between how many objects there are...

The Hubble Space Telescope is a reflecting telescope in orbit about the earth so that its resolution would not be limited by turbulence in the atmosphere. Its objective diameter is 2.4 m. For visible...

In what order are the planets from the sun

I am having trouble showing that the baryon to photon ratio is η= nb/nγ ~ 2.7x10-8Ωbh2 where nb and nγ are the number density of baryons and photons respectively, Ωb is the baryon...

if a car traveling at constant speed goes 70 miles in 2 hours, how far will it go in 24 hours

The Hubble Space Telescope is a reflecting telescope in orbit about the earth so that its resolution would not be limited by turbulence in the atmosphere. Its objective diameter is 2.4 m. For visible...

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