Recent content by Darkkk
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Graduate Estimation of central temperature of a star
Ah yes I see! I have it now. Thank you for the advice :)- Darkkk
- Post #5
- Forum: Astronomy and Astrophysics
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Graduate Estimation of central temperature of a star
I do know R=8.314 joules per Kelvin but Pc is unknown, I am assuming the proportion relation will be used at the end of the problem to get the temperature in terms of the solar mass. I am just not quite sure what the first step is. Perhaps I ought to sub the Tc given in the question into the...- Darkkk
- Post #3
- Forum: Astronomy and Astrophysics
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Graduate Estimation of central temperature of a star
Problem: Relatively low mass stars can be shown to have their radii dependent on their mass as; R\proptoM1/2 From this, show that the temperature in kelvin at the centre of such a star can be estimated to be \approx24\times106(M/Msolar)1/2 Relevant Equations...- Darkkk
- Thread
- Estimation Star Temperature
- Replies: 4
- Forum: Astronomy and Astrophysics
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What is the mass and lifetime of the φ meson?
OK so this is how far I got with this one... found the mean lifetime using \tau=(h/2\pi)/\Gamma This gave me a value of 1.5x10-22 Is that correct? also still stumped on how to find the mass...- Darkkk
- Post #3
- Forum: Advanced Physics Homework Help
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What is the mass and lifetime of the φ meson?
An electron and a positron are collided head on such that all their energy is used to produce a φmeson. The number of observed φ mesons is found to be inversely proportional to (E−E0)+Γ2/4. where E is the total centre of mass collision energy, E0=1019 MeV and Γ=4.26MeV What is the mass and...- Darkkk
- Thread
- Collision Electron Positron
- Replies: 2
- Forum: Advanced Physics Homework Help