Advertisements
Advertisements
प्रश्न
State Kepler’s law which is represented by the relation r3 ∝ T2.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
How does the force of gravitation between two objects change when the distance between them is reduced to half?
Can we apply Newton’s third law to the gravitational force ? Explain your answer.
Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?
Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.
What is meant by the equation :
`g= Gxxm/r^2`
where the symbols have their usual meanings.
What is the difference between gravity and gravitation?
An apple falls towards the earth due to its gravitational force. The apple also attracts the earth with the same force. Why do we not see the earth rising towards the apple? Explain.
State Newton's universal law of gravitation. Express it with the mathematical form of force of gravitation?
Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If `sqrt8` R is the distance between the centres of a ring (of mass 'm')and a sphere (mass 'M') where both have equal radius 'R'.
If the distance between two objects is doubled, the gravitational force becomes:
