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Sphere
The set of points in space equidistant from a certain point.
The surface area and volume of a sphere of radius,
r
Surface area,
A
Volume,
V
Moments of inertia
of a solid sphere of radius,
r
and mass,
m
Drag Coefficient
C
d
= 0.45
R
e
< 2e5
A = πd
2
/4
C
d
= 0.2
R
e
> 2e5
A = πd
2
/4
See also:
Ball
,
Circle
,
Density
,
Great Circle
,
Hemisphere
,
Lune
,
Mass
,
Small Circle
,
Spherical Triangles
,
Spherical Trigonometry
.
Science & Engineering Encyclopaedia Version 2.3 © 2001-2008
Dirac Delta Consultants Limited
