Use data from Table 31.1 to determine, to two significant figures: a. The distance of Sirius from
Question:
Use data from Table 31.1 to determine, to two significant figures:
a. The distance of Sirius from the Earth in metres.
b. The luminosity (in W) of
i. Canopus
ii. Vega.
c. The radiant flux intensity measured at the Earth from:
i. Sirius
ii. Alpha Centauri.
Where necessary, take:
L⊙ = 3.83 × 1026 W
1 ly ≈ 9.5 × 1015 m
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a The distance of Sirius from the Earth is 86 x 1013 m to two significant figures b i The luminosity ...View the full answer
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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