Where will it be profitable to purchase $1$ kilogram sugar
At poles
At equator
At $45^°$ latitude
At $40^°$ latitude
If density of earth increased $4 $ times and its radius become half of what it is, our weight will
A particle of mass $10\, g$ is kept of the surface of a uniform sphere of mass $100\, kg$ and a radius of $10\, cm .$ Find the work to be done against the gravitational force between them to take the particle far away from the sphere. (you make take $\left.G=6.67 \times 10^{-11} Nm ^{2} / kg ^{2}\right)$
A body welghs $200 \;\mathrm{N}$ on the surface of the earth. ......$N$ will it weigh half way down to the centre of the earth?
Obtain an expression for the variation in effective gravitational acceleration $g'$ with latitude due to earth’s rotation.
In both figures shown below a hole along the diameter of earth. In first, a particle is released from $A$ and it oscillated with time period $T_1$. In second figure, same particle is released from point $B$ and it oscillates with time period $T_2$ then [$O$ is centre of earth]