The average distance between Earth and the Sun is 1.5\times10^{11}m. (a)

David Troyer

David Troyer

Answered question

2021-12-15

The average distance between Earth and the Sun is 1.5×1011m.
(a) Calculate the average speed of Earth in its orbit (assumed to be circular) in meters per second. (b) What is this speed in miles per hour?

Answer & Explanation

zesponderyd

zesponderyd

Beginner2021-12-16Added 41 answers

We know the average distance [dg] from the Earth to the Sun =1.5×1011m 
The travel distance d1 is given: 
d1=2π×dg=2π×1.5×1011=9.424×1011m 
And v1 is given by: 
v1=d1t=9.424×1011m1year=9.424×1011m365.25day×24×3600s3×104ms 
The speed of Earth on average =29862.85ms 
Speed is given by:
v2=29862.85ms×36001609.346.7×104mih 
Therefore, (a) v1=3×104ms, (b) v2=6.7×104mih

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