Motion graphic of 3D Head up display ( HUD UI ) technology interface screen with futuristic elements graph and chat panel abstract background Motion graphic of 3D Head up display ( HUD UI ) technology ...
In a distance-time graph, the gradient of the line is equal to the speed of the object. The greater the gradient (and the steeper the line) the faster the object is moving.
Polar orbits take the satellites over the Earth's poles. The satellites travel very close to the Earth (as low as 200 km above sea level), so they must travel at very high speeds (nearly 8,000 m/s).
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