138229 Two identical solid copper spheres of radius $\mathbf{R}$ are placed in contact with each other. The gravitational attraction between them is proportional to:

138230 The distance between the centre of moon and earth is $D$ and mass of earth is 81 times the mass of moon. At what distance from the centre of the earth, the gravitational force will be zero?

138231 Two masses $90 \mathrm{~kg}$ and $160 \mathrm{~kg}$ are separated by a distance of $5 \mathrm{~m}$. The magnitude of intensity of the gravitational field at a point which is at a distance $3 \mathrm{~m}$ from the $90 \mathrm{~kg}$ mass and $4 \mathrm{~m}$ from the $160 \mathrm{~kg}$ mass is (Universal gravitational constant, $G=6.67 \times 10^{-11} \mathrm{~N}-\mathrm{m}^{2} \mathbf{k g}^{-2}$ ).

138232 Two bodies of masses $m_{1}$ and $m_{2}$ initially at rest at infinite distance apart move towards each other under gravitational force of attraction. Their relative velocity of approach when they are separated by a distance $r$ is $(G=$ universal gravitational constant.)

138233 Two bodies of equal masses are some distance apart. If $20 \%$ of mass is transferred from the first body to the second body, then the gravitational force between them

138229 Two identical solid copper spheres of radius $\mathbf{R}$ are placed in contact with each other. The gravitational attraction between them is proportional to:

138230 The distance between the centre of moon and earth is $D$ and mass of earth is 81 times the mass of moon. At what distance from the centre of the earth, the gravitational force will be zero?

138231 Two masses $90 \mathrm{~kg}$ and $160 \mathrm{~kg}$ are separated by a distance of $5 \mathrm{~m}$. The magnitude of intensity of the gravitational field at a point which is at a distance $3 \mathrm{~m}$ from the $90 \mathrm{~kg}$ mass and $4 \mathrm{~m}$ from the $160 \mathrm{~kg}$ mass is (Universal gravitational constant, $G=6.67 \times 10^{-11} \mathrm{~N}-\mathrm{m}^{2} \mathbf{k g}^{-2}$ ).

138232 Two bodies of masses $m_{1}$ and $m_{2}$ initially at rest at infinite distance apart move towards each other under gravitational force of attraction. Their relative velocity of approach when they are separated by a distance $r$ is $(G=$ universal gravitational constant.)

138233 Two bodies of equal masses are some distance apart. If $20 \%$ of mass is transferred from the first body to the second body, then the gravitational force between them

138229 Two identical solid copper spheres of radius $\mathbf{R}$ are placed in contact with each other. The gravitational attraction between them is proportional to:

138230 The distance between the centre of moon and earth is $D$ and mass of earth is 81 times the mass of moon. At what distance from the centre of the earth, the gravitational force will be zero?

138231 Two masses $90 \mathrm{~kg}$ and $160 \mathrm{~kg}$ are separated by a distance of $5 \mathrm{~m}$. The magnitude of intensity of the gravitational field at a point which is at a distance $3 \mathrm{~m}$ from the $90 \mathrm{~kg}$ mass and $4 \mathrm{~m}$ from the $160 \mathrm{~kg}$ mass is (Universal gravitational constant, $G=6.67 \times 10^{-11} \mathrm{~N}-\mathrm{m}^{2} \mathbf{k g}^{-2}$ ).

138232 Two bodies of masses $m_{1}$ and $m_{2}$ initially at rest at infinite distance apart move towards each other under gravitational force of attraction. Their relative velocity of approach when they are separated by a distance $r$ is $(G=$ universal gravitational constant.)

138233 Two bodies of equal masses are some distance apart. If $20 \%$ of mass is transferred from the first body to the second body, then the gravitational force between them

138229 Two identical solid copper spheres of radius $\mathbf{R}$ are placed in contact with each other. The gravitational attraction between them is proportional to:

138230 The distance between the centre of moon and earth is $D$ and mass of earth is 81 times the mass of moon. At what distance from the centre of the earth, the gravitational force will be zero?

138231 Two masses $90 \mathrm{~kg}$ and $160 \mathrm{~kg}$ are separated by a distance of $5 \mathrm{~m}$. The magnitude of intensity of the gravitational field at a point which is at a distance $3 \mathrm{~m}$ from the $90 \mathrm{~kg}$ mass and $4 \mathrm{~m}$ from the $160 \mathrm{~kg}$ mass is (Universal gravitational constant, $G=6.67 \times 10^{-11} \mathrm{~N}-\mathrm{m}^{2} \mathbf{k g}^{-2}$ ).

138232 Two bodies of masses $m_{1}$ and $m_{2}$ initially at rest at infinite distance apart move towards each other under gravitational force of attraction. Their relative velocity of approach when they are separated by a distance $r$ is $(G=$ universal gravitational constant.)

138233 Two bodies of equal masses are some distance apart. If $20 \%$ of mass is transferred from the first body to the second body, then the gravitational force between them

138229 Two identical solid copper spheres of radius $\mathbf{R}$ are placed in contact with each other. The gravitational attraction between them is proportional to:

138230 The distance between the centre of moon and earth is $D$ and mass of earth is 81 times the mass of moon. At what distance from the centre of the earth, the gravitational force will be zero?

138231 Two masses $90 \mathrm{~kg}$ and $160 \mathrm{~kg}$ are separated by a distance of $5 \mathrm{~m}$. The magnitude of intensity of the gravitational field at a point which is at a distance $3 \mathrm{~m}$ from the $90 \mathrm{~kg}$ mass and $4 \mathrm{~m}$ from the $160 \mathrm{~kg}$ mass is (Universal gravitational constant, $G=6.67 \times 10^{-11} \mathrm{~N}-\mathrm{m}^{2} \mathbf{k g}^{-2}$ ).

138232 Two bodies of masses $m_{1}$ and $m_{2}$ initially at rest at infinite distance apart move towards each other under gravitational force of attraction. Their relative velocity of approach when they are separated by a distance $r$ is $(G=$ universal gravitational constant.)

138233 Two bodies of equal masses are some distance apart. If $20 \%$ of mass is transferred from the first body to the second body, then the gravitational force between them