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Does a rocket really need the escape spe...

Does a rocket really need the escape speed of `11.2 km//s` initially to escape from the Earth?

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Calculate the ratio m_(0)//m for a rocket to attain the escape velocity of 11.2km s^(-1) after starting from rest, when maximum exhaust velocity of gases is 1.6km//s .

The escape speed of a body from the surface of the Earth is

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The escape velocity from the earth for a rocket is 11.2 km//sec . Ignoring the air resistance, the escape velocity of 10mg grain of sand from the earth will be (in km//sec )

Given mass of the moon is 1/81 of the mass of the earth and corresponding radius is 1/4 of the earth. If escape velocity on the earth surface is 11.2 km / s , the value of same on the surface of the moon is

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The escape velocity of a rocket launched from the surface of the earth

PHYSICS GALAXY - ASHISH ARORA-GRAVITATION-Discussion Qns
  1. At noon, the sun and the earth pull the objects on the earth's surface...

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  2. As measured by an observer on the earth, be any difference in the peri...

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  3. Does a rocket really need the escape speed of 11.2 km//s initially to ...

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  4. If an artificial statellite is orbiting the earth, it it possible for ...

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  5. If a planet of given density were made larger, its force of attraction...

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  6. An astronaut orbiting the earth in a circular orbit 120km above the su...

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  7. Can two particles be in equilibrium under the action of their mutual g...

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  8. If the gravitational force on an object depends linearly on its mass, ...

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  9. A satellite revolves around the earth in a circular orbit. What will h...

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  10. Gravitational force acts on all objects in properties to their masses....

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  11. The weight of an object is more at the poles than at the equator. Is i...

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  12. Objects at rest on the earth's surface move in circular paths with a p...

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  13. A satellite is revolving around a planet in a circular orbit. What wil...

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  14. Because the earth bulges near the equator, the source of Mississippi R...

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  15. The astronauts in a satellite orbiting the Earth feel weightlessness. ...

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  16. The total energy of the earth + Sun system is negative. How do you int...

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  17. Two air bubbles with radius r are present in water. Are these bubbles ...

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  18. Suppose an earth satellite, revolving in a circular orbit experiences ...

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  19. Objects at rest on the earth's surface move in circular paths with a p...

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  20. When a train moves from west to east at high speed, does its wight inc...

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