Assignment

Infinite number of masses each of mass $2 \mathrm{kg}$ are placed on z-axis at a distance of $2 \mathrm{m} ,$ $4 \mathrm{m} , 8 \mathrm{m}.....$ from origin. The gravitational potential at the origin is

The weight of a body (weighing $60 \mathrm{N}$ on the surface of earth) at the centre of earth is

The gravitational force between two spherical body each of mass $6.67 \mathrm{kg}$ separated by a distance of $6.67 \mathrm{m}$ in air is

The relation between acceleration due to gravity at pole $\left(g_p\right)$ and equator $\left(g_e\right)$ for earth can be related as

The escape speed on the earth surface is nearly _____ $\mathrm{km} {\mathrm{s}}^{-1}$

When two bodies are brought closer, then the gravitational force between them will _____

Shorter the orbit of planet around the sun, _____ is the time taken to complete one revolution.

Define orbital speed of satellite. What is its value for a satellite close to earth surface?