I) M3 SPH400-B 2-D Star Clusters Puzzle II) III) ms m₁ l Let m4 l Challenge A F₁ = each l G m₁m₂ r² m₁ = M₁ = mass l = Earth-sun Distance Find star m₂ v) Reguler Heptagon of the sun = -11 G = 6.67 x 10 Nm² ng" - IV) l l ms l l ---1- 30 199 XI0 ng 6 149.6x10 km the net gravitational force for each star-cluster. VI) Reguler Octago
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
2-D star cluster puzzle
Find the net gravitational force on each star for each star cluster
Let mass of the star = 1.99 x 10^30 kg, l=earth to star distance=149.6 x 10^6 km, G=6.67 x10^-11 N m^2/kg^2. Note that the masses of each star is the same.
1) Triangle
2) Square
3) Pentagon
4) Hexagon
5) Regular heptagon
6) Regular Octagon
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