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प्रश्न
Identify the mistake in the given diagram and draw it again.
उत्तर
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संबंधित प्रश्न
Name the scientist who gave the three laws of planetary motion.
Name the scientist who explained the motion of planets on the basis of gravitational force between the sun and planets.
What name has been given to the force with which two objects lying apart attract each other ?
What is the actual shape of the orbit of a planet around the sun? What assumption was made by Newton regarding the shape of an orbit of a planet around the sun of deriving his inverse square rule from Kepler's third law of planetary motion?
The masses of the earth and moon are 6 × 1024 kg and 7.4 × 1022 kg, respectively. The distance between them is 3.8 × 105 km. Calculate the gravitational force of attraction between the two?
Use G = 6.7 × 10–11 N m2 kg–2
The atmosphere consisting of a large number of gases is held to the earth by :
The weight of an object at the centre of the earth of radius R is :
According to one of the Kepler's laws of planetary motion :
A _______ is necessary to change the speed as well as the direction of motion of an object.
If the distance between two masses is doubled, the gravitational force between them becomes less than the previous force.
The value of acceleration due to gravity
The gravitational force between two objects is F. If masses of both objects are halved without changing distance between them, then the gravitational force would become
A boy is whirling a stone tied with a string in a horizontal circular path. If the string breaks, the stone
Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be
The atmosphere is held to the earth by
An apple falls from a tree because of gravitational attraction between the earth and the apple. If F1 is the magnitude of the force exerted by the earth on the apple and F2 is the magnitude of the force exerted by the apple on earth, then
Identical packets are dropped from two aeroplanes, one above the equator and the other above the north pole, both at height h. Assuming all conditions are identical, will those packets take some time to reach the surface of the earth. Justify your answer.
Give scientific reasons.
Any object on earth falls vertically downward and not at an angle to the vertical; nor fly off in a horizontal direction.
