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The velocity at which a rocket is able t...

The velocity at which a rocket is able to escape from the ___________ of the Earth is called escape velocity.

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gravitational pull
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Assertion : Propulsion of rocket is based on escape velocity . Reason : Velocity which is sufficient to esacpe from Earth's gravitational pull is called escape velocity .

The velocity with which the wave travels through a medium is called __________ .

At what temperature will the average velocity of oxygen molecules be sufficient so as to escape from the earth ? Escape velocity of earth is 11.0 kms^(-1) and mass of one molecule of oxygen is 5.34xx10^(-26) kg. Boltzmann constant =1.38xx10^(-23) " J molecule"^(-1) K^(-1) .

SURA PUBLICATION-LAWS OF MOTION-ADDITIONAL QUESTIONS & ANSWER ( FILL IN THE BLANKS (COVER WHOLE UNIT) )
  1. The mass of rocket decreases with .

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  2. As the mass of a rocket decreases with altitude , it its increases.

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  3. The velocity at which a rocket is able to escape from the of the Ear...

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  4. Force between the is always attractive .

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  5. does not depend on the medium in which it is placed .

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  6. The acceleration of a falling object is due to the Earth's force .

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  7. The reaction force R exerted by lift's surface is known as .

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  8. 'R' of the person that arise , depending on the motion of the light .

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  9. When lift is at rest , the apparent weight is to actual weight .

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  10. The condition for lift falling down freely is .

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  11. The effect take place while falling freely in roller coaster is .

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  12. There is no gravity in the orbiting space station around the Earth . S...

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  13. Newton's law of helps in dicovering new stars and planets.

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  14. The SI unit of gravity is .

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  15. Mass of the Earth is kg.

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  16. The value of Universal gravitational constant is .

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  17. Geometric radius of the Earth is in the equatorial region .

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  18. Geometric radius of the Earth is in the polar region .

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  19. The value of 'g' is maximum in the region .

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  20. The value of 'g' of minimum in the region .

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