Physics
General
Easy
Question
One can easily " Weight the earth " by calculating the mass of earth using the formula. (in usual notation)
The correct answer is:
Related Questions to study
physics-
Two identical springs are attached at the opposite ends of a rod having length 
and mass 
. The rod could rotate about its mid-point O as shown in figure. Now, if the point 
of the rod is pressed slightly and released, the rod starts executing oscillatory motion. The periodic time of this motion is………
Two identical springs are attached at the opposite ends of a rod having length and mass . The rod could rotate about its mid-point O as shown in figure. Now, if the point of the rod is pressed slightly and released, the rod starts executing oscillatory motion. The periodic time of this motion is………
physics-General
physics-
As shown in figure (A) and (B) , a body of mass is attached at the ends of the spring system, All springs have the same spring constaut k. Now when both systems oscillates along vertical diroction, the ratio of their periodic time is…….
As shown in figure (A) and (B) , a body of mass is attached at the ends of the spring system, All springs have the same spring constaut k. Now when both systems oscillates along vertical diroction, the ratio of their periodic time is…….
physics-General
physics-
A mass on an inclined smooth surface is attached to two springs as shown in figure. The other ends of both springs are attached to rigid surface. If the force constant of both spring is 
, then the periodic time of oscillation for the system is .
A mass on an inclined smooth surface is attached to two springs as shown in figure. The other ends of both springs are attached to rigid surface. If the force constant of both spring is , then the periodic time of oscillation for the system is .
physics-General
physics
The distance of the moon and earth is D the mass of earth is 81 times the mass of moon. At what distance from the center of the earth, the gravitational force will be zero
The distance of the moon and earth is D the mass of earth is 81 times the mass of moon. At what distance from the center of the earth, the gravitational force will be zero
physicsGeneral
physics
Two particle of equal mass go round a circle of radius r. Under the action of their mutual gravitational force. The speed of each particle is …….
Two particle of equal mass go round a circle of radius r. Under the action of their mutual gravitational force. The speed of each particle is …….
physicsGeneral
biology
Match the column
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Match the column
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biologyGeneral
physics
The earth (mass=
kg) revolves around the sun with angular velocity 
rad/sec sec in a circular orbit of radius 1.5
km. The force exerted by the sun on the earth is...N
The earth (mass=kg) revolves around the sun with angular velocity rad/sec sec in a circular orbit of radius 1.5km. The force exerted by the sun on the earth is...N
physicsGeneral
physics-
The figure shows elliptical orbit of a planet about the sun 
. the shaded area SCD is twice, the saded area SAB. If 
is the time tor the planet to move trom 
' and 
and 
is the time to move from A to B then
The figure shows elliptical orbit of a planet about the sun . the shaded area SCD is twice, the saded area SAB. If is the time tor the planet to move trom ' and and is the time to move from A to B then
physics-General
physics
correct form of gravitational law is
correct form of gravitational law is
physicsGeneral
physics
A satellite of the earth is revolving in a circular orbit with a uniform speed v. If the gravitational force suddennly disappears, the satellite will
A satellite of the earth is revolving in a circular orbit with a uniform speed v. If the gravitational force suddennly disappears, the satellite will
physicsGeneral
physics
Two sphere of mass 
and 
are situated in air and the gravitational force between them is F. The space around the masses is now filled with liquid of specific gravity 3. The gravitational force will now be
Two sphere of mass and are situated in air and the gravitational force between them is F. The space around the masses is now filled with liquid of specific gravity 3. The gravitational force will now be
physicsGeneral
physics
The atmosphere is held to the earth by
The atmosphere is held to the earth by
physicsGeneral
physics-
The curves for P.E. (U) K.E. (EEK) of two particle system ae shown in figure, At what points. system will be bound.
The curves for P.E. (U) K.E. (EEK) of two particle system ae shown in figure, At what points. system will be bound.
physics-General
physics-
A sphere of mass M and Radius R2 has a concentric cavity of Radius R1 as shown in figure. The force 
exerted by the shpere on a particle of mass located at a distance 
from the center of shhere varies as 
A sphere of mass M and Radius R2 has a concentric cavity of Radius R1 as shown in figure. The force exerted by the shpere on a particle of mass located at a distance from the center of shhere varies as
physics-General
physics
The gravitational force Fig between two objects does not depend on
The gravitational force Fig between two objects does not depend on
physicsGeneral
