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Calculate the mass and mean density of t...

Calculate the mass and mean density of the earth from the following data :
`{:(,"Gravitational constant",(G),=6.6xx10^(-11)Nm^(2)kg^(-2)),(,"Radius of the earth",(R ),=6.37xx10^(6)m),(,"Acceleration due to gravity",(g),=9.8ms^(-2)):}`

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The correct Answer is:
`5.5 xx 10^(3) kg m ^(-3)`
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Calculate the mass and density of the earth. Given that Gravitational constant G = 6.67 xx 10^(-11) Nm^(2)// kg^(2) , the radius of the earth = 6.37 xx 10^(6) m and g = 9.8 m//s^(2) .

Calculate the acceleration due to gravity on the earth from the following data G= 6.6 xx 10 ^(-11) N m^(2) Kgm^(-3) Mean density of the earth = 5xx 10 ^(-3) kgm Radius of the earth = 6.4 xx10 ^(6) m .

The acceleration due to gravity g and mean density of earth rho are related by which of the following relations ? (G = gravitational constant and R = radius of earth)

Calculate the acceleration due to gravity on the earth 's surface , given that gravitational constant G = 6.7 xx 10^(-11) SL unit , radius of he earth = 6. 4 xx 10 ^(6) m and mean density of earth = 5.5 xx 10^(3) kg m^(-3) .

Calculate the angular momentum of the earth rotating about its own axis. Mass of the earth = 5.98 xx 10^(27) kg, mean radius of the earth =6.37 xx 10^(6)m,M.I of the earth = (2)/(5)MR^(2) .

Calculate the force of attraction between two balls each of mass 10kg when their centres are 10 cm apart. The value of gravitational constant G = 6.67 xx 10^(-11) Nm^(2) kg^(-2)

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NN GHOSH-GRAVITATION-EXERCISE
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  2. Compare the minimum velocity with which a particle must be...

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  4. How many hours would make a day if the earth were rotating at such a h...

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  5. The mass of Mars is one - tenth that of the earth and its diamet...

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  6. Calculate the escape speed of an atmospheric particle which is...

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  7. Two masses, 800 kg and 600 kg, are at a distance 0.25 m apart. Compute...

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  8. A man can jump vertically to a height of 1.5 m on the earth. Calculate...

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  9. A body weights 20 kg on the surface of the earth . What will be its i...

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  10. Find the self gravitationl potential of (a) a thin unifrom spherica...

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  11. A projectile is fired vertically from the earth's surface with an init...

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  12. A short , straight and frictinless tunnel is bored through the centr...

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  13. Two particle of mass m and M are initially at rest at inifinte ...

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  14. Three identical particles each of mass "m" are arranged at the corner...

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  15. An iron ball o fradius 1 m and density 8000 kg m^(-3) is placed in ...

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  16. A particles is fired vertically from the surface of the earth with a...

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  17. Calculate the pressure caused by gravitational copmression at the cen...

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  18. A planet of mass moves alng an ellipes around the sun so that i...

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  19. In a double star, two stars (one of mass m and the other of mass 2m) d...

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  20. Two satellites A and B of equal mass move in the equatorial plane of t...

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