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A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then,
29
Aug
A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then, A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. [...]
A remote – sensing satellite of earth revolves in a circular orbit at a height of 0.25 × 10^6 m above the surface of earth. If earth’s radius is 6.38 × 10^6 m and g = 9.8ms^−2, then the orbital speed of the satellite is:
29
Aug
A remote – sensing satellite of earth revolves in a circular orbit at a height of 0.25 × 10^6 m above the surface of earth. If earth’s radius is 6.38 × 10^6 m and g = 9.8ms^−2, then the orbital speed of the satellite is: A remote - sensing satellite of earth revolves in a [...]
A particle of mass M is situated at the centre of spherical shell of same mass and radius a. The gravitational potential at a point situated at a/2 distance from the centre, will be
29
Aug
A particle of mass M is situated at the centre of spherical shell of same mass and radius a. The gravitational potential at a point situated at a/2 distance from the centre, will be A particle of mass M is situated at the centre of spherical shell of same mass and radius a. The gravitational [...]
The mass of wedge shown in figure is M and that of the block is m. Neglecting friction at all the places and mass of the pulley, calculate acceleration of the wedge. Thread is inextensible.
29
Aug
The mass of wedge shown in figure is M and that of the block is m. Neglecting friction at all the places and mass of the pulley, calculate acceleration of the wedge. Thread is inextensible. calculate acceleration of the wedge. Thread is inextensible. The mass of wedge shown in figure is M and that of [...]
The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :
29
Aug
The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is : is The work done to raise a mass m from the surface of the earth to a height h which is equal to the radius of [...]
Infinite number of bodies, each of mass 2 kg are situated on x-axis at distance 1m, 2m, 4m, 8m, respectively, from the origin. The resulting gravitational potential due to this system at the origin will be.
29
Aug
Infinite number of bodies, each of mass 2 kg are situated on x-axis at distance 1m, 2m, 4m, 8m, respectively, from the origin. The resulting gravitational potential due to this system at the origin will be. 2m 4m 8m each of mass 2kg are situated on x-axis at distance 1m from the origin. The resulting [...]
A roller coaster is designed such that riders experience “weightlessness” as they go round the top of a hill whose radius of curvature is 20 m. The speed of the car at the top of the hill is between –
29
Aug
A roller coaster is designed such that riders experience “weightlessness” as they go round the top of a hill whose radius of curvature is 20 m. The speed of the car at the top of the hill is between – A roller coaster is designed such that riders experience "weightlessness" as they go round the [...]
A body projected vertically from the earth reaches a height equal to earth’s radius before returning to the earth. The power exerted by the gravitational force is greatest.
29
Aug
A body projected vertically from the earth reaches a height equal to earth’s radius before returning to the earth. The power exerted by the gravitational force is greatest. A body projected vertically from the earth reaches a height equal to earth's radius before returning to the earth. The power exerted by the gravitational force is [...]
A block of mass m is placed on the inclined sufrace of a wedge as shown in fig. Calculate the acceleration of the wedge and the block when the block is released. Assume all surfaces are frictionless.
29
Aug
A block of mass m is placed on the inclined sufrace of a wedge as shown in fig. Calculate the acceleration of the wedge and the block when the block is released. Assume all surfaces are frictionless. A block of mass m is placed on the inclined sufrace of a wedge as shown in fig. [...]
Two spherical bodies of mass M and 5 M and radii R and 2 R are released in free space with initial separation between their centres equal to 12 R. If they attract each other due to gravitational force only. then the distance covered by the smaller body just before collision is
29
Aug
Two spherical bodies of mass M and 5 M and radii R and 2 R are released in free space with initial separation between their centres equal to 12 R. If they attract each other due to gravitational force only. then the distance covered by the smaller body just before collision is Dependence of intensity [...]