Solution of task 13.3.16 from the collection of Kepe OE

If the total amount of your purchases from the seller Михаил_Перович more than:
- 200 $ the discount is 15%
- 100 $ the discount is 10%
- 50 $ the discount is 7%
- 20 $ the discount is 5%
- 10 $ the discount is 3%
- 5 $ the discount is 2%
- 1 $ the discount is 1%

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13.3.16
The space station moves in a circular orbit of radius R = 7 • 106 m around the Earth.
Determine the speed of the station in km / s, if the earth's mass is 5.976 • 1024 kg, the gravitational constant is 6.672 • 10-11 N • m2 / kg2.
(Answer 7.55)