Drag (aka N1)
Drag, also known as N1, is the force that opposes the motion of an object through the atmosphere. In space and astronautical engineering, drag is a critical factor in the design and operation of spacecraft, as it can cause orbital decay and limit the useful life of a satellite or spacecraft. Drag is caused by the interaction of the spacecraft with the atmosphere, which can cause heating, vibration, and other effects. Engineers must carefully consider the effects of drag on spacecraft design, including the shape and materials used, as well as the altitude and speed of the spacecraft. In addition, drag can be used to control the orbit of a spacecraft, by using aerodynamic surfaces or other techniques to increase or decrease the drag on the spacecraft.
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