What is satellite? Derive an expression for the orbital velocity of an artificial satellite and hence derive its time period.
Answers
Answer:
Satellite
an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
mark me Brainlist
I need it
Answer:
satellite is an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
Explanation:
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. On 4 October 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1.
The orbital speed can be found using v = SQRT(G*M/R). The R value (radius of orbit) is the earth's radius plus the height above the earth - in this case, 6.59 x 106 m. Substituting and solving yields a speed of 7780 m/s.
The orbital velocity of the satellite depends on its altitude above Earth. The nearer to Earth, the faster the required orbital velocity. ... To maintain an orbit that is 22,223 miles (35,786 kilometers) above Earth, the satellite must orbit at a speed of about 7,000 mph (11,300 kph).