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The system of two weights with masses m1 and m2 are connected with weightless spring as shown in Fig.6.211 The system is resting on the support S. Find the acceleration of each of the wights just after the support S is quickly removed.
29
Aug
The system of two weights with masses m1 and m2 are connected with weightless spring as shown in Fig.6.211 The system is resting on the support S. Find the acceleration of each of the wights just after the support S is quickly removed. as shown in the figure. The string breaks suddenly. Immediately after the [...]
If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct?
29
Aug
If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct? If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude which of the following is not [...]
A compass needle which is allowed to move in horizontal plane is taken to a geomagnetic pole. It
29
Aug
A compass needle which is allowed to move in horizontal plane is taken to a geomagnetic pole. It A compass needle which is allowed to move in horizontal plane is taken to a geomagnetic pole. It August 29, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years Solved 1988 - 2019 Physics and [...]
Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2m?
29
Aug
Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2m? as shown in the figure. The string breaks [...]
Dependence of intensity of gravitational field (E) of earth with distance (r) from centre of earth is correctly represented by
29
Aug
Dependence of intensity of gravitational field (E) of earth with distance (r) from centre of earth is correctly represented by Dependence of intensity of gravitational field (E) of earth with distance (r) from centre of earth is correctly represented by August 29, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years Solved 1988 [...]
A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass = 5.98 × 10^24 kg) have to be compressed to be a black hole?
29
Aug
A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass = 5.98 × 10^24 kg) have to be compressed to be a black hole? A spherical planet has a mass Mp and diameter Dp . A particle of mass [...]
On applying a force F, point P is displaced vertically down by y from equilibrium positionl. Find force F in terms of the force constant k of the spring and displacement y, for the cases (a) and (b), as shown in fig.
29
Aug
On applying a force F, point P is displaced vertically down by y from equilibrium positionl. Find force F in terms of the force constant k of the spring and displacement y, for the cases (a) and (b), as shown in fig. as shown in fig. for the cases (a) and (b) On applying a [...]
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of Earth. The escape velocity of a body from this platform is fve, where ve is its escape velocity from the surface of the earth. The value of f is
29
Aug
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of Earth. The escape velocity of a body from this platform is fve, where ve is its escape velocity from the surface of the earth. The value of f is The earth is [...]
The ratio of escape velocity at earth(ve) to the escape velocity at a planet(vp) whose radius and mean density are twice as that of earth is:
29
Aug
The ratio of escape velocity at earth(ve) to the escape velocity at a planet(vp) whose radius and mean density are twice as that of earth is: The ratio of escape velocity at earth(ve) to the escape velocity at a planet(vp) whose radius and mean density are twice as that of earth is: August 29, 2020 [...]
Two disks of masses m(1) and m(2) are connected by a spring of force constant k. The lower disk of mass m(2)lies on a table and the upper disk is vertically above it. What vertical force F should be applied to the upper disk so that when the force is withdraw, the lower disk is lifted off the table?
29
Aug
Two disks of masses m(1) and m(2) are connected by a spring of force constant k. The lower disk of mass m(2)lies on a table and the upper disk is vertically above it. What vertical force F should be applied to the upper disk so that when the force is withdraw, the lower disk is [...]