18. The distance d, in kilometres, to the horizon from a height, h, in kilometres, can be modelled by the formula d= V2rh + h? where r represents Earth's radius, in kilometres. A spacecraft is 200 km above Earth, at point S. If the distance to th

匿名用户最后更新于 2021-12-01 19:18 数学类Mathematics

18. The distance d, in kilometres, to the horizon from a height, h, in kilometres, can be modelled by the formula d= V2rh + h? where r represents Earth's radius, in kilometres. A spacecraft is 200 km above Earth, at point S. If the distance to the horizon from the spacecraft is 1609 km, what is the radius of Earth? S h d

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18. The distance d, in kilometres, to the horizon from a height, h, in kilometres, can be modelled by the formula d= V2rh + h? where r represents Earth&#x27;s radius, in kilometres. A spacecraft is 200 km above Earth, at point S. If the distance to th

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18. The distance d, in kilometres, to the horizon from a height, h, in kilometres, can be modelled by the formula d= V2rh + h? where r represents Earth's radius, in kilometres. A spacecraft is 200 km above Earth, at point S. If the distance to th