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प्रश्न
State Kepler’s law which is represented by the relation r3 ∝ T2.
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उत्तर
Kepler’s law of periods states that: The cube of the mean distance of a planet from the sun is directly proportional to the square of the time it takes to move around the sun.
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संबंधित प्रश्न
Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. If this is true, why don’t we notice such forces ? Why don’t the two objects in a room move towards each other due to this force ?
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A uniform metal sphere of radius a and mass M is surrounded by a thin uniform spherical shell of equal mass and radius 4a (In the following figure). The centre of the shell falls on the surface of the inner sphere. Find the gravitational field at the points P1 and P2 shown in the figure.
How will the force of gravitation between two objects change if the distance between them is:
Almost zero
The force of attraction between any two material objects is called __________.
Why does a ball moving on a table top eventually stops?
State Newton’s universal law of gravitation. Express it with the mathematical form of force of gravitation?
The force of gravitation between two bodies of mass 1 kg each separated by a distance of 1 m in vacuum is ____________.
Four identical particles of equal masses 1 kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be ______.
Ocean tides on Earth are mainly caused by ______.
