Theo dõi Vietnamese
tìm từ bất kỳ, như là thot:
 
1.
The point in a system of bodies or an extended body at which the mass of the system may be considered to be concentrated and at which external forces may be considered to be applied. Also called barycenter or centroid.
In general, an object with a lower center of mass is more stable. This explains why weebles wobble but they don't fall down.
viết bởi razer 21 Tháng mười hai, 2006
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