The orbital velocity of satellite i is v.
Two artificial satellites p and q.
Sputnik 1 ˈ s p ʊ t n ɪ k ˈ s p ʌ t n ɪ k.
Satellite 1 or ps 1 простейший спутник 1 or prosteyshiy sputnik 1 elementary satellite 1 was the first artificial earth satellite.
Most of these satellites are representative of an entire class of satellites.
An artificial satellite is an object that people have made and launched into orbit using rockets.
In the context of spaceflight a satellite is an object that has been intentionally placed into orbit these objects are called artificial satellites to distinguish them from natural satellites such as earth s moon.
A brief history of artificial satellites.
The orbital velocity of satellite i is v.
Physics q a library two artificial satellites i and ii have circular orbits of radii r and 2r respectively about the same planet.
India has been successfully launching satellites of various types from 1975.
The size altitude and design of a satellite depend on its purpose.
On 4 october 1957 the soviet union launched the world s first artificial satellite sputnik 1 since then about 8 900 satellites from more than 40 countries have been launched.
3 1957 the soviets launched an even more massive satellite sputnik 2 which carried a dog laika the united states.
Following that feat on nov.
Apart from indian rockets these satellites have been launched from various vehicles including american russian and european rockets sometimes as well.
There may be others that serve similar functions but the satellites listed are exemplars.
It orbited for three weeks before its batteries died and then orbited silently for two months before.
Since then dozens of countries have launched satellites with more than 3 000 currently operating spacecraft.
This list covers most artificial satellites built in and operated by the republic of india.