Tag: satellites in communication

A remote -sensing satellite of earth revolves in a circular orbit at a height of $ 0.25 \times 10^6 $ m above the surface of earth. if earth's radius is $ 0.25 \times 10^6 $ m above the surface of earth. if earth's radius is $ 6.38 \times 10^6 m $ and $ g= 9.8 m/s^2 $, then the orbital speed of the satellite is :

What kind of battery used by older satellites?

State the chronological order in which the following events took place.
$1$. Launching of APPLE
$2$. Launching of Rohini
$3$. Antarctica expectation
$4$. Indian cosmonaut