Cengage NEET by C.P Singh
A double star is a composite system of two stars rotating about their centre of mass under their mutual gravitational attraction. Let us consider such a double star which has two stars of masses m and 2m and let their separation be L. Their time period of rotation about their centre of mass will be proportional to
14
Sep
A double star is a composite system of two stars rotating about their centre of mass under their mutual gravitational attraction. Let us consider such a double star which has two stars of masses m and 2m and let their separation be L. Their time period of rotation about their centre of mass will be [...]
Two bodies of masses m1 and m2 are initially at rest at infinite distance apart. They are then allowed to move towards each other under mutual gravitational attraction. Their relative velocity of approach at a separation distance r between them is
14
Sep
Two bodies of masses m1 and m2 are initially at rest at infinite distance apart. They are then allowed to move towards each other under mutual gravitational attraction. Their relative velocity of approach at a separation distance r between them is The escape velocity from earth is ves. A body is projected with velocity 2 [...]
Use the assumptions of the previous question. An object weighed by a spring balance at the equator gives the same reading as a taken at a depth d below the earth’s surface at a pole (d
14
Sep
Use the assumptions of the previous question. An object weighed by a spring balance at the equator gives the same reading as a taken at a depth d below the earth’s surface at a pole (d Use the assumptions of the previous question. An object weighed by a spring balance at the equator gives the [...]
Let ω be the angular velocity of the earth’s rotation about its axis. Assume that the acceleration due to gravity on the earth’s surface has the same value at the equator and the poles. An object weighed by a spring balance gives the same reading at the equator as at a height h above the poles (h
14
Sep
Let ω be the angular velocity of the earth’s rotation about its axis. Assume that the acceleration due to gravity on the earth’s surface has the same value at the equator and the poles. An object weighed by a spring balance gives the same reading at the equator as at a height h above the [...]
An object is weighted at the North Pole by a beam balance and a spring balance, giving readings of WB and WS respectively. It is again weighed in the same manner at the equator, giving readings of W′B and W′S respectively. Assume that the acceleration due to gravity is the same everywhere and that the balance are quite sensitive, Choose the wrong option
14
Sep
An object is weighted at the North Pole by a beam balance and a spring balance, giving readings of WB and WS respectively. It is again weighed in the same manner at the equator, giving readings of W′B and W′S respectively. Assume that the acceleration due to gravity is the same everywhere and that the [...]
Tags:
An object is weighted at the North Pole by a beam balance and a spring balance ,
Choose the wrong option ,
giving readings of W′B and W′S respectively. Assume that the acceleration due to gravity is the same everywhere and that the balance are quite sensitive ,
giving readings of WB and WS respectively. It is again weighed in the same manner at the equator ,
A satellite is moving with a constant speed v in circular orbit around the earth. An object of mass ′m′ is ejected from the satellite such that it just escapes from the gravitational pull of the earth. At the time of ejection, the kinetic energy of the object is
14
Sep
A satellite is moving with a constant speed v in circular orbit around the earth. An object of mass ′m′ is ejected from the satellite such that it just escapes from the gravitational pull of the earth. At the time of ejection, the kinetic energy of the object is In the previous problem the minimum [...]
The Earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the Earth. The escape velocity of a body from this platform is fv, where v is its escape velocity from the surface of the Earth. The value of f is
14
Sep
The Earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the Earth. The escape velocity of a body from this platform is fv, where v is its escape velocity from the surface of the Earth. The value of f is The Earth [...]
The escape velocity from earth is ves. A body is projected with velocity 2 ves with what constant velocity will it move in the inter planetary space
14
Sep
The escape velocity from earth is ves. A body is projected with velocity 2 ves with what constant velocity will it move in the inter planetary space The escape velocity from earth is ves. A body is projected with velocity 2 ves with what constant velocity will it move in the inter planetary space September [...]
The escape velocity for a planet is ve. A particle is projected from its surface with a speed v. For this particle to move as a satellite around the planet.
14
Sep
The escape velocity for a planet is ve. A particle is projected from its surface with a speed v. For this particle to move as a satellite around the planet. The escape velocity for a planet is ve. A particle is projected from its surface with a speed v. For this particle to move as [...]
Two identical solid copper spheres of radius R are placed in contact with each other. The gravitational attraction between them is proportional to
14
Sep
Two identical solid copper spheres of radius R are placed in contact with each other. The gravitational attraction between them is proportional to Two identical solid copper spheres of radius R are placed in contact with each other. The gravitational attraction between them is proportional to September 14, 2020 Category: Cengage NEET by C.P Singh [...]