How does the weight of an object vary with respect to mass and radius of the earth?
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0
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1774
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March 21, 2018
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Show that the weight of an object on the moon is 1/6th of its weight on the earth
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0
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5728
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March 21, 2018
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Define acceleration due to gravity. Derive an expression for acceleration due to gravity in terms of mass of the earth (M) and universal gravitational constant (G)
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0
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14867
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March 21, 2018
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Derive expression for force of attraction between two bodies and then define gravitational constant
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0
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18476
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March 21, 2018
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Two objects of masses m1and m2 having the same size are dropped simultaneously from heights h1 and h2, respectively
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0
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2888
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March 21, 2018
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Prove that if a body is thrown vertically upward, the time of ascent is equal to the time of descent
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0
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5809
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March 21, 2018
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Calculate the average density of the earth in terms of g, G and R
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0
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4716
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March 21, 2018
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On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?
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0
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7796
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March 21, 2018
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Give three differences between acceleration due to gravity (g) and universal gravitational constant (G)
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0
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14693
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March 21, 2018
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Prove that if the earth attracts two bodies placed at same distance from the centre of the earth with the same force, then their masses are equal
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0
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25358
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March 21, 2018
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Suppose that the radius of the earth becomes twice of its original radius without any change in its mass. Then what will happen to your weight?
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0
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17357
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March 21, 2018
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What is the source of centripetal force that a planet requires to revolve around the sun? On what factors does that force depend?
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0
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829
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March 21, 2018
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Why does a body reach the ground quicker at poles than at the equator when dropped from the same height?Why does a body reach the ground quicker at poles than at the equator when dropped from the same height?
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0
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10038
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March 21, 2018
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When does an object show weightlessness?
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0
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5162
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March 21, 2018
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Mention any four phenomena that the universal law of gravitation was able to explain
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0
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12401
|
March 21, 2018
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The earth attracts an apple. Does the apple also attract the earth? If it does, why does the earth not move towards the apple?
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0
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2707
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March 21, 2018
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Find the height from the surface of earth at which weight of a body of mass tn reduced to 36% of its weight on the surface. (${{R}_{e}}$ = 6400 km.)
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1
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7461
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December 9, 2017
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Define period of revolution
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1
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8629
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December 24, 2016
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Does the escape speed of a body from the earth depend on
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1
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2057
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December 24, 2016
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Does the change in gravitational potential energy
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1
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1132
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December 24, 2016
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The earth is acted upon by the gravitational attraction of the sun. Why don't the earth fall into the sun?
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0
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2257
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December 24, 2016
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If suddenly the gravitational force of attraction between the earth and a satellite revolving around it becomes zero, what will happen to the satellite?
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0
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1780
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December 24, 2016
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An astronaut by mistake
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1
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1875
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December 24, 2016
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On what factor does the escape speed from a surface depend?
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0
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2318
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December 24, 2016
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If the kinetic energy of a satellite revolving around the earth in any orbit is doubled, what will happen to it?
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0
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2797
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December 24, 2016
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A satellite does not need any fuel to circle around the earth. Why?
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0
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3767
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December 24, 2016
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Derive an expression for work done against gravity?
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0
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6180
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December 24, 2016
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An object of mass m
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1
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592
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December 24, 2016
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Assuming the earth to be a sphere of uniform mass density
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1
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1457
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December 24, 2016
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What is the gravitational potential energy
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1
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778
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December 24, 2016
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