Q)
(chatquestion)...Consider a spherical gaseous cloud of mass density p(r) in free space wherer is the radial
distance from its center. The gaseous cloud is made of particles of equal mass m moving in
circular orbits about the common center with the same kinetic energy K. The force acting on the
particles is their mutual gravitational force. If p(r) is constant in time, the particde number density
n(r) = p(r)/m is [G is universal gravitational constant]
1.
(2019)
ЗК
K
(A)
Tr'm?G
(B)
2nr2m G
K.
(C)
6xr?m?G
K
(D)
Tr'm?G
1 Answer
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