ï»¿ A remote sensing satellite of earth revolves in a circular orbit at a height of 0.25 x 106 m above the surface of theÂ earth. if earth 's radius is 6.38 x 106 m and g = 9.8 ms-2 then theÂ orbital speed of the Â satellite isÂ  from Physics Gravitation Class 11 Manipur Board

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A remote sensing satellite of earth revolves in a circular orbit at a height of 0.25 x 106 m above the surface of theÂ earth. if earth 's radius is 6.38 x 106 m and g = 9.8 ms-2 then theÂ orbital speed of the Â satellite isÂ

• 7.76 kms-1

• 8.56 kms-1

• 9.13 kms-1

• 6.67 kms-1

A.

7.76 kms-1

Given, height of a satellite

h = 0.25 x 106 mÂ

Earth's radius, Re = 6.38 x 106mÂ

For the satellite revolving around the Â earth, orbital velocity of the satellite

Â

Given, height of a satellite

h = 0.25 x 106 mÂ

Earth's radius, Re = 6.38 x 106mÂ

For the satellite revolving around the Â earth, orbital velocity of the satellite

Â

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The position co-ordinates of two particles of masses m1Â and m2are (x1, y1, z1) and (x2, y2, z2) respectively. Find the coordinates of the centre of mass.

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Â

Comparing the coefficients of Â , we get

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