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CBSE Class 9 Answered

state the universal law of gravitation?  
Asked by singhabhishekmgs | 14 Oct, 2019, 02:15: PM
answered-by-expert Expert Answer
Universal law of gravitation states that every object in the universe attracts every other object with a force which is directly poportional to the product of the masses and inversly proportional to the square of the distance between them.
Answered by Utkarsh Lokhande | 14 Oct, 2019, 03:31: PM

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CBSE 9 - Physics
A boy throws a steel ball straight up. Consider the motion of the ball only after it has left the boy's hand but before it touches the ground and assume that forces exerted by the air are negligible. For these conditions, the force(s) acting on the ball is (are): a. A downward force of gravity along with a steadily decreasing upward force b. A steadily decreasing upward force from the moment it leaves the boy's hand until it reaches its highest point on the way down there is a steadily increasing downward force of gravity as the object gets closer to the earth c. Constant downward force of gravity along with an upward force that steadily decreases until the ball reaches it highest point on the way down there is only a constant downward force of gravity d. Constant downward force of gravity only
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CBSE 9 - Physics
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CBSE 9 - Physics
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CBSE 9 - Physics
two satellites of a planet have period 32 day and 256 days if the radius of orbit of former is R, find the orbital radius of the letter
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CBSE 9 - Physics
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CBSE 9 - Physics
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Asked by mannatjohn920 | 15 Feb, 2022, 09:57: AM
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CBSE 9 - Physics
Find the force of gravitational attraction between the earth (m = 6 x 1024 kg) and 80 kg man if he is standing at sea level. The distance of man from earth's center is 6.38 x 106 m.
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CBSE 9 - Physics
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CBSE 9 - Physics
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how does the force of gravitation between two objects change when the distance between them is reduced to half
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