Question

define sattilite please​

Answer 1

Answer:

an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.

"a communications satellite

Answer 2

A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is a satellite because it orbits the sun.

Orbital speed of any satellite to stay in its orbit of the planet=V

$\huge{V = \sqrt{ \frac{G \times M}{r} } }$

Where,

G is the gravitational constant

$\large{ = 6.673 \times {10}^{ - 11} \frac{N{m}^{2}}{ {kg}^{2} }}$

Note:

Orbital velocity for Earth = 7000 km/h