Use this equation to estimate the mass of a star being orbited by an exoplanet with a period of 275 Earth-days at a dist
Posted: Wed May 18, 2022 3:46 pm
Use this equation to estimate the mass of a star being orbited by an exoplanet with a period of 275 Earth-days at a distance of 0.7 AU.
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1. By balancing gravitational and centrifugal forces, it is possible to estimate the mass of body being orbited (M) from the orbital distance (r) and time period of rotation (T) of an orbiting body together with the universal gravitational constant (G) using the equation: Use this equation to estimate the mass of a star being orbited by an exoplanet with a period of 275 Earth-days at a distance of 0.7 AU. (i) First give the distance, r, in metres and the period, T, in seconds (2 marks) (ii) Now, look up G and calculate the mass of the star Provide your working as well as your answer (3 marks) (1) B H A с Р. (ii) H P. D 2. Briefly, how and why would you expect the bulk composition of a chondritic meteorite to differ from the bulk compositions of (i) the Gas Giants and (ii) the Moon? (5 marks) (ii)
(i) B H. A С P (ii) H. 2 2 P2 D
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1. By balancing gravitational and centrifugal forces, it is possible to estimate the mass of body being orbited (M) from the orbital distance (r) and time period of rotation (T) of an orbiting body together with the universal gravitational constant (G) using the equation: Use this equation to estimate the mass of a star being orbited by an exoplanet with a period of 275 Earth-days at a distance of 0.7 AU. (i) First give the distance, r, in metres and the period, T, in seconds (2 marks) (ii) Now, look up G and calculate the mass of the star Provide your working as well as your answer (3 marks) (1) B H A с Р. (ii) H P. D 2. Briefly, how and why would you expect the bulk composition of a chondritic meteorite to differ from the bulk compositions of (i) the Gas Giants and (ii) the Moon? (5 marks) (ii)
(i) B H. A С P (ii) H. 2 2 P2 D