An asteroid moving with velocity v is moving towards a star from a very far point. The impact parameter in this case is b. The mass of the star is M and radius of the star is R. Calculate the minimum value of b for which the asteroid will miss the star. (m<

An asteroid moving with velocity v is moving towards a star from a very far point. The impact parameter in this case is b. The mass of the star is M and radius of the star is R. Calculate the minimum value of b for which the asteroid will miss the star. (m<

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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.

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An asteroid moving with velocity v is moving towards a star from a very far point. The
impact parameter in this case is b. The mass of the star is M and radius of the star is R.
Calculate the minimum value of b for which the asteroid will miss the star.
(m<<M).
2GM
(a) b=,1
Rv
2Gm
(b) b=-
v V R
2GM
(c) b=R,1+
Rv
1 GM
(d) b=.
vV R

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