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Find the height above the earth’s surface , where the value of acceleration due to gravity is ( 3/4 )th the value on the surface . ( take the radius of earth as R ).
02
Oct
Find the height above the earth’s surface , where the value of acceleration due to gravity is ( 3/4 )th the value on the surface . ( take the radius of earth as R ). Find the height above the earth's surface where the value of acceleration due to gravity is ( 3/4 )th the [...]
Find the maximum cahnge in reading of a spring balance if a block of mass m is brought from pole to equater.
02
Oct
Find the maximum cahnge in reading of a spring balance if a block of mass m is brought from pole to equater. Find the maximum cahnge in reading of a spring balance if a block of mass m is brought from pole to equater. October 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
If the radius of Earth is 6000 km, what will be the weight of 120 kg body if taken to a height of 2000 km above sea level ( i.e. surface of the Earth )?
02
Oct
If the radius of Earth is 6000 km, what will be the weight of 120 kg body if taken to a height of 2000 km above sea level ( i.e. surface of the Earth )? If the radius of Earth is 6000 km what will be the weight of 120 kg body if taken to [...]
Where will you weigh more and why: (a) 2 km above the surface of earth or (b) 2 km below the surface of earth?
02
Oct
Where will you weigh more and why: (a) 2 km above the surface of earth or (b) 2 km below the surface of earth? Where will you weigh more and why: (a) 2 km above the surface of earth or (b) 2 km below the surface of earth? October 2, 2020 Category: Uncategorised (JEE Advanced [...]
Two spheres of masses 64 kg and 289 kg are placed a distance 10 m apart . Find the position of a point on the line joining the centres of the two spheres, where the gravitional field is zero.
02
Oct
Two spheres of masses 64 kg and 289 kg are placed a distance 10 m apart . Find the position of a point on the line joining the centres of the two spheres, where the gravitional field is zero. Two spheres of masses 64 kg and 289 kg are placed a distance 10 m apart [...]
A particle is released from rest from the pioint A. Find its accelerations, velocities at B and C, if the particle moves under the gravity of thin spherical shell of mass M and radius R.
02
Oct
A particle is released from rest from the pioint A. Find its accelerations, velocities at B and C, if the particle moves under the gravity of thin spherical shell of mass M and radius R. A particle is released from rest from the pioint A. Find its accelerations if the particle moves under the gravity [...]
Two lead balls of mass m and 2 m are placed at a separation d. A third ball of mass m is placed at an unknown location on the line joining the first two balls such that the net gravitational force experienced by the first ball is 6 Gm^2/2 d^2 . What is the location of the third ball?
02
Oct
Two lead balls of mass m and 2 m are placed at a separation d. A third ball of mass m is placed at an unknown location on the line joining the first two balls such that the net gravitational force experienced by the first ball is 6 Gm^2/2 d^2 . What is the location [...]
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A particle of mass m is moving along the side of a square of side 'a' ,
A ring and a disc are initially at rest ,
Figure shows a hallow sphere inside a lead sphere of radius R ,
side by side ,
with a uniform speed v in the x-y plane as shown in the figure. Which of the following statements is false for the angular momentum L about the origin? ,
Three identical point masses m each are kept at the vertices A, B, and C of a cube having side length ‘a’ (see figure). Another identical mass is placed at the center point D of the cube. (a) Where will you place a fifth identical mass so that the net gravitational force acting on mass at D becomes zero? (b) Calculate the net gravitational force acting on the mass at D.
02
Oct
Three identical point masses m each are kept at the vertices A, B, and C of a cube having side length ‘a’ (see figure). Another identical mass is placed at the center point D of the cube. (a) Where will you place a fifth identical mass so that the net gravitational force acting on mass [...]
Tags:
A particle of mass m is moving along the side of a square of side 'a' ,
A ring and a disc are initially at rest ,
B ,
side by side ,
Three identical point masses m each are kept at the vertices A ,
with a uniform speed v in the x-y plane as shown in the figure. Which of the following statements is false for the angular momentum L about the origin? ,
A binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them . This statement implies that the masses of the two stars are equal (fig.) Assume teh orbitial speed of each speed of each star is v = 200 km/s and the orbital period of each is 20 days. Find the mass M of each star.
02
Oct
A binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them . This statement implies that the masses of the two stars are equal (fig.) Assume teh orbitial speed of each speed of each star is v = 200 km/s and the orbital period of [...]
A thin rod of mass M and length L is bent in a semicircle as shown in figure (a). What is its gravitational force (both magnitude and direction) on a particle with mass m at O the centre of curvature ? (b) what would be the force on m if the rod is in the form of complete circle?
02
Oct
A thin rod of mass M and length L is bent in a semicircle as shown in figure (a). What is its gravitational force (both magnitude and direction) on a particle with mass m at O the centre of curvature ? (b) what would be the force on m if the rod is in the [...]