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Standard VI
Physics
Planets
The radius of...
Question
The radius of planet is twice the radius of earth.Both have almost equal average mass densities .If Vp and Ve are escape velocities of planet and tge earth,resp. then find realtion between Ve and V
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Q.
The radius of a planet is nine times of the radius of earth. Both have almost equal average mass-densities. If
V
P
and
V
E
are the escape velocities of the planet and the earth respectively, then
Q.
The radius of a planet is twice that of the earth but its average density is the same, If the escape speed at the planet and at the earth are
v
p
and
v
e
, respectively, then prove that
v
p
=
2
v
e
.
Q.
The ratio of escape velocity on earth
(
v
e
)
to the escape velocity on a planet
(
v
p
)
whose radius and mean density are twice as that of earth is
Q.
V
e
,
V
p
denotes the escape velocity from the earth and another planet having twice the density as the earth, Then
Q.
A planet has radius equal to
2
R
E
and density is equal to
4
ρ
E
. If the value of escape speed at surface of planet is
α
times
v
E
(
v
E
is escape speed on earth,
R
E
is radius of earth and
ρ
E
is the density of earth
)
then -
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