Part 1
The density of newly discovered planet is twice that of the earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R the radius of the planet would be
14
Sep
The density of newly discovered planet is twice that of the earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R the radius of the planet would be If R is the radius of the [...]
Two planets have the same average density but their radii are R1 and R2. If acceleration due to gravity on these planets be g1 and g2 respectively, then
14
Sep
Two planets have the same average density but their radii are R1 and R2. If acceleration due to gravity on these planets be g1 and g2 respectively, then then Two planets have the same average density but their radii are R1 and R2. If acceleration due to gravity on these planets be g1 and g2 [...]
If the radius of earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the earth’s surface would
14
Sep
If the radius of earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the earth’s surface would If the radius of earth were to shrink by one percent its mass remaining the same the acceleration due to gravity on the earth's surface would September 14, 2020 [...]
If R is the radius of the earth and g the acceleration due to gravity on the earth’s surface, the mean density of the earth is
14
Sep
If R is the radius of the earth and g the acceleration due to gravity on the earth’s surface, the mean density of the earth is If R is the radius of the earth and g the acceleration due to gravity on the earth's surface the mean density of the earth is September 14, 2020 [...]
Two point masses A and B having masses in the ratio 4 : 3 are separated by a distance of 1 m. When another point mass C of mass M is placed in between A and B the forces A and C is (1 / 3rd) of the force between B and C, Then the distance C from A is
14
Sep
Two point masses A and B having masses in the ratio 4 : 3 are separated by a distance of 1 m. When another point mass C of mass M is placed in between A and B the forces A and C is (1 / 3rd) of the force between B and C, Then the [...]
Two particles of equal mass m go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is
14
Sep
Two particles of equal mass m go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is Two particles of equal mass m go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is September [...]
Two spheres of masses m and M are situated in air and the gravitational force between them is F. The space around the masses is now filled with a liquid of specific gravity 3. The gravitational force will now be
14
Sep
Two spheres of masses m and M are situated in air and the gravitational force between them is F. The space around the masses is now filled with a liquid of specific gravity 3. The gravitational force will now be Water flows through two identical tubes A and B. A volume Vo of water passes [...]
A large cylindrical tank has a hole of area A at its bottom. Water is poured in the tank by a tube of equal cross sectional area A ejecting water at the speed v.
14
Sep
A large cylindrical tank has a hole of area A at its bottom. Water is poured in the tank by a tube of equal cross sectional area A ejecting water at the speed v. A large cylindrical tank has a hole of area A at its bottom. Water is poured in the tank by a [...]
A cylindrical tank has a hole of 1cm^2 in its bottom. If the water is allowed to flow into the tank from a tube above it at the rate of 70 cm^3/sec then the maximum height up to which water can rise in the tank is ( g = 9.8 m/s^2)
14
Sep
A cylindrical tank has a hole of 1cm^2 in its bottom. If the water is allowed to flow into the tank from a tube above it at the rate of 70 cm^3/sec then the maximum height up to which water can rise in the tank is ( g = 9.8 m/s^2) Water flows through two [...]
A large tank is filled with water to a height H. A small hole is made at the base of the tank. It takes T1 time to decrease the height of water to Hη(η>1) and it takes T2 times to take out the rest of water. If T1=T2, then the value of η is
14
Sep
A large tank is filled with water to a height H. A small hole is made at the base of the tank. It takes T1 time to decrease the height of water to Hη(η>1) and it takes T2 times to take out the rest of water. If T1=T2, then the value of η is Water [...]