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JBD PUBLICATION-GRAVITATION-EXAMPLE
- A rocket is fired vertically with a speed of 5 km s^-1 from the earth’...
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- Assuming the earth to be a sphere of uniform mass density, how much wo...
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- A body weighs 63 N on the surface of the earth. What is the gravitatio...
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- The escape speed of a projectile on the earth’s surface is 11.2 km s^-...
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- A satellite orbits the earth at a height of 400 km above the surface. ...
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- Two stars each of one solar mass (= 2xxl0^30 kg) are approaching each ...
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- Two heavy spheres each of mass 100 kg and radius 0.10 m are placed 1.0...
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- Define gravitaional field and gravitiaonal intensity.
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- Among the known types of forces in nature,gravitational force is the w...
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- Mention some special features of Newton's law of gravitation.
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- Why are space rockets usually launched from west to east?
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- A tunnel is dug through the centre of the earth. Show that a body of m...
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- A person sitting in an artficial satellite feels weightlessness but a ...
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- Why is G called universal gravitational constant ?
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- How does value of acceleration due to gravity vary with shape of earth
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- A body is taken from the centre of the earth to the top of the mountai...
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- Explain why moon has no atmosphere.
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- It is said that you move the sky when you move figer,how?
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- Establish the relation between 'g' and 'G' .
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- Answer the following :- You can shield a charge from electrical forces...
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