Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A particle of mass 10 g is kept on the surface of a uniform sphere of masss 100 kg and radius 10cm. Find the work to be done against the gravitational force between them to take the particel far away from the sphere (you may take G=6.67× 10^−11 N/m2 k g^2)
06
Oct
A particle of mass 10 g is kept on the surface of a uniform sphere of masss 100 kg and radius 10cm. Find the work to be done against the gravitational force between them to take the particel far away from the sphere (you may take G=6.67× 10^−11 N/m2 k g^2) Find the percentage decrease [...]
The value of acceleration due to gravity at the surface of the earth is 9.8 m/s^2 and the mean radius is about 6.4×106m. Assuming that we could get more soil some where, estimate how thick would an added uniform outer layer on the earth have to have the value of acceleration due to gravity 10 m/s^2 exactly ?
06
Oct
The value of acceleration due to gravity at the surface of the earth is 9.8 m/s^2 and the mean radius is about 6.4×106m. Assuming that we could get more soil some where, estimate how thick would an added uniform outer layer on the earth have to have the value of acceleration due to gravity 10 [...]
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estimate how thick would an added uniform outer layer on the earth have to have the value of acceleration due to gravity 10 m/s^2 exactly ? ,
The value of acceleration due to gravity at the surface of the earth is 9.8 m/s^2 and the mean radius is about 6.4×106m. Assuming that we could get more soil some where ,
The radius of earth is about 6400 km and that of Mars is 3200 km. The mass of the earth is about 10 times the mass of Mars. An object weighs 200 N on the surface of Earth. Its weight on the surface of mars will be:
06
Oct
The radius of earth is about 6400 km and that of Mars is 3200 km. The mass of the earth is about 10 times the mass of Mars. An object weighs 200 N on the surface of Earth. Its weight on the surface of mars will be: Find the percentage decrease in weight of a [...]
Find the percentage decrease in weight of a body, when taken 16 km below the surface of the earth. Take radius of the earth as 6400 Km.
06
Oct
Find the percentage decrease in weight of a body, when taken 16 km below the surface of the earth. Take radius of the earth as 6400 Km. Find the percentage decrease in weight of a body when taken 16 km below the surface of the earth. Take radius of the earth as 6400 Km. October [...]
A body weighs 64 N on the surface of the earth. What is the gravitational force ( in N ) on it due to the earth at a height equal to one – third of the radius of the earth?
06
Oct
A body weighs 64 N on the surface of the earth. What is the gravitational force ( in N ) on it due to the earth at a height equal to one – third of the radius of the earth? A body weighs 64 N on the surface of the earth. What is the gravitational [...]
A ring of radius R = 4 m is made of a highly dense material. Mass of the ring is m1 = 5.4 × 10^9 kg distributed uniformly over its circumference. A highly dense particle of mass m2 = 6 × 10^8 kg is placed on the axis of the ring at a distance x0 = 3 m from the centre. Neglecting all other forces
06
Oct
A ring of radius R = 4 m is made of a highly dense material. Mass of the ring is m1 = 5.4 × 10^9 kg distributed uniformly over its circumference. A highly dense particle of mass m2 = 6 × 10^8 kg is placed on the axis of the ring at a distance x0 [...]
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A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
Suppose earth’s orbital motion around the sun is suddenly stooped. Find the time ( in days ) taken by the earth to fall into the sun.
06
Oct
Suppose earth’s orbital motion around the sun is suddenly stooped. Find the time ( in days ) taken by the earth to fall into the sun. Suppose earth's orbital motion around the sun is suddenly stooped. Find the time ( in days ) taken by the earth to fall into the sun. October 6, 2020 [...]
A projectile of mass m is fired from the surface of the earth at an angle α=60∘ from the vertical. The initial speed υ0 is equal to root G Me / Re . How high does the projectile rise ? Neglect air resistance and the earth’s rotation.
06
Oct
A projectile of mass m is fired from the surface of the earth at an angle α=60∘ from the vertical. The initial speed υ0 is equal to root G Me / Re . How high does the projectile rise ? Neglect air resistance and the earth’s rotation. A particle of mass m is subjected to [...]
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A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
Gravitational acceleration on the surface of plane fo root 6 /11 g. where g is the gravitational acceleration on the surface of the earth. The average mass density of the planet is 23 times that of the earth. If the escape speed on the surface of the earth is taken to be 11 km/s the escape speed on the surface of the planet in km/swill be
06
Oct
Gravitational acceleration on the surface of plane fo root 6 /11 g. where g is the gravitational acceleration on the surface of the earth. The average mass density of the planet is 23 times that of the earth. If the escape speed on the surface of the earth is taken to be 11 km/s the [...]
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A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
A particle is fixed vertically upwards with a speed of 15 km/s . The speed of the particle ( in km/s ), when it goes out of the earth’s gravitational pull is 5 alpha. Find the value of alpha.
06
Oct
A particle is fixed vertically upwards with a speed of 15 km/s . The speed of the particle ( in km/s ), when it goes out of the earth’s gravitational pull is 5 alpha. Find the value of alpha. A particle is fixed vertically upwards with a speed of 15 km/s . The speed of [...]