Gravitation and Floatatio
Calculate the force of gravitation due to earth on a man weighing 100 kg standing on the ground? (mass of earth =6×1024kg, Radius of earth=6.4×103km)
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Average distance of the earth from the sun isL1. If one year of the earth = D days, one year of another planet whose average distance from the sun is L2 will be
The weight of an object of mass 10 kg at the centre of the earth is ____.
When the distance between two objects is increased, the force of attraction between them will:
Suppose, the acceleration due to gravity at the Earth's surface is 10 m s−2 and at the surface of Mars is 4 m s−2. A 60 kg passenger goes from the Earth to the Mars in a spaceship moving with a constant velocity. Neglect all other objects in the sky. Which part of figure best represents the weight (net gravitational force) of the passenger as a function of time?
At a place, value of g is less by 1% than its value on the surface of the Earth (Radius of Earth = 6400 km). The place is
As we go below the surface of the earth, the acceleration due to gravity ____.
Few characteristics of a quantity are given below. Find out the name of the quantity.(i)Itiszeroatthecentreoftheearth.(ii) It is measures with a spring balance.(iii)Itisa→rquantity.(iv) It's direction is towards the centre of the earth.