The radius of earth is 6371 km The surface area is : 4pi r^2 = 4 * 3.14 * 6,371^2 = 509 805 891 km ...

5 Answers · Science & Mathematics · 03/06/2012

... force = mass x centripetal acceleration (http://en.

**wikipedia**.org/wiki/Centripetal_force) F = ma, where centripetal... = 250 x (26.39)2 / 13.7 (have converted km /h to m/s to maintain same unit with radius, to give answer in...1 Answers · Science & Mathematics · 22/05/2013

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**wikipedia**.org/wiki/Scale_height ) Therefore, all you... to find out how many times is 100 km larger than 8 km for you to find out how much ...1 Answers · Science & Mathematics · 01/11/2017

... = X · d / 206,265 Here is the source: http://en. wikipedia .org/wiki/Small-angle_approximation

3 Answers · Science & Mathematics · 15/07/2012

Periapsis 420,000 km Apoapsis 423,400 km Mean orbit radius 421,700 km http://en.

**wikipedia**.org/wiki/Io_%28moon%291 Answers · Science & Mathematics · 16/05/2010

...get you into low earth orbit Just to answer the question though, about 60,000,000 km /(1129 ft/s) = 5.5ish years, the distance between the two varies, I...

4 Answers · Science & Mathematics · 31/05/2008

It's within the Earth's interior. It's why the Earth wobbles. http://en.

**wikipedia**.org/wiki/Barycentric_coordinates_%28astronomy%293 Answers · Science & Mathematics · 17/06/2012

...to get the first ever accurate measure of the size of the Earth. use

**Wikipedia**to read up on him and learn the full details I am too...1 Answers · Science & Mathematics · 25/09/2014

no europe is bigger europe 10,180,000 sq km canada 9,984,670 sq km USA 9,629,091 sq km http://en.

**wikipedia**.org/wiki/List_of_countries_and_outlying_territories_by_total_area#Countries_by_total_area2 Answers · Science & Mathematics · 10/12/2011

**Wikipedia**defines Low Earth Orbit as between 160 - 2000 km (100 - 1240 miles) above the Earth's surface. According to...1 Answers · Science & Mathematics · 22/02/2009