that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5×10^8 km.
Sahay Sir > Question Answers > that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5×10^8 km.
A star 2.5 times the mass of the sun and collapsed to a size of the 12km rotates with a speed of 1.5 rev per second. (Extremely compact stars of this kind are known as neutron stars. Certain observed stellar objects called pulsars are believed to belong this category ). Will an object placed on its equator remain struck to its surface due to gravity ? (Mass of the sun =2×10^30kg).
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Sep
A star 2.5 times the mass of the sun and collapsed to a size of the 12km rotates with a speed of 1.5 rev per second. (Extremely compact stars of this kind are known as neutron stars. Certain observed stellar objects called pulsars are believed to belong this category ). Will an object placed on [...]
Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal table. What is the gravitational force and potential at the mid point of the line joining the centers of the spheres? Is an object placed at that point in equilibrium? If so, is the equilibrium stable or unstable?
20
Sep
Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0 m apart on a horizontal table. What is the gravitational force and potential at the mid point of the line joining the centers of the spheres? Is an object placed at that point in equilibrium? If so, is the equilibrium [...]
Two starts each of one solar mass (=2×10^30kg) are approaching each other for a head on collision. When they are a distance 109km. their speeds are negligible. What is the speed with which they collide? The radius of each star is 10^4km. Assume the stars to remain undistorted until they collide. (Use the known value of G).
20
Sep
Two starts each of one solar mass (=2×10^30kg) are approaching each other for a head on collision. When they are a distance 109km. their speeds are negligible. What is the speed with which they collide? The radius of each star is 10^4km. Assume the stars to remain undistorted until they collide. (Use the known value [...]
A satellite orbits the earth at a height of 400 km above the surface. How much energy must be expended to rocket the satellite out of the earth’s gravitational influence? Mass of the satellite =200 kg; mass of the earth =6. 0×10^24 kg; radius of the earth =6.4 x 10^6 m, G = 6.67 x 10^11 N-m^2/Kg^2.
20
Sep
A satellite orbits the earth at a height of 400 km above the surface. How much energy must be expended to rocket the satellite out of the earth’s gravitational influence? Mass of the satellite =200 kg; mass of the earth =6. 0×10^24 kg; radius of the earth =6.4 x 10^6 m, G = 6.67 x [...]
The escape speed of a projectile on the earth’s surface is 11.2 km `s^(-1)`. A body is projected out with thrice this speed. What is the speed of the body far away from the earth? Ignore the presence of the sun and other planets.
20
Sep
The escape speed of a projectile on the earth’s surface is 11.2 km `s^(-1)`. A body is projected out with thrice this speed. What is the speed of the body far away from the earth? Ignore the presence of the sun and other planets. How will you 'weigh the sun' that is estimate its mass? [...]
How will you ‘weigh the sun’, that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5×10^8 km.
19
Sep
How will you ‘weigh the sun’, that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5×10^8 km. How will you 'weigh the sun' that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5×10^8 km. September 19, 2020 Category: Chapter 7 - [...]