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The speed in orbit, (and the period of the orbit) depends on only the size of the orbit.
The first successful artificial satellites, including the Sputniks and the manned satellites carrying Gagarin and Glenn, were in orbits barely high enough to avoid being brought down immediately by atmospheric drag. Their orbital periods were all about 90 minutes.
With a radius of roughly 4000 miles (earth's radius plus a little extra for orbital altitude), the circumference is (2 pi R) = 26,000 miles.
The speed would have been (26,000 / 90) = about 289 miles per minute = 4.8 miles per second That's about 7.5 times the moon's orbital velocity.
What else can I help you with?
What year was the 1st manned space flight?
The first human spaceflight was undertaken on April 12, 1961, when cosmonaut Yuri Gagarin made one orbit around the Earth aboard the Vostok 1 spacecraft, launched by the Soviet space program and designed by the rocket scientists Sergey Korolyov and Kerim Kerimov.
What did Russia do that sparked the race to conquer space?
The USSR launched the worlds first artificial satellite Sputnik. Sputnik broadcast a radio beacon as it orbited the earth, effectively rubbing the fact that they got there 1st into the Yanks faces.
Is mars the 1st 2nd 3rd planet from the sun?
Mars follows the Earth in the succession of planets orbiting the Sun. It is thus the 4th planet from the Sun.
What planet is 3rd Rock from the Sun?
1st Mercury 2nd Venus 3rd Earth
What three incorrect ideas held back the development of modern astronomy from the time of Aristotle until the 16thy century?
The main factor that delayed development of the model of the solar system was the lack of accurate measurement apparatus and the lack of the will to develop any. Another factor was the lack of a telescope. Therefore the Ptolemaic model of the planets' orbits lasted from the 1st century until the 15th century. The Ptolemaic model with the Earth at the centre was complicated but everyone understood it and accepted that it was correct. It predicted the planets' positions pretty accurately and no-one saw any need to change it. It was only when Tycho Brahe invented new ways of measuring the planets' positions in the late 1500s that he realised that there were inaccuracies in the Ptolemaic model. To improve on the model he invented a new model that differed in some details. Meanwhile Copernicus had devised another new system, similar to Ptolemy's model in some ways but with the Sun at the centre and the Earth in orbit round it. Tycho's model still had the Earth at the centre, while the Moon and Sun orbited the Earth and the other five known planets orbited the Sun. But when Kepler got hold of Tycho's measurements he devised a new system which used Copernicus's idea of placing the Sun at the centre, with all the planets incuding the Earth in orbit round the Sun. Kepler used the novel idea of elliptical orbits, and this model has stood the test of time for over 400 years now.
When did Vasco de Balboa start traveling?
September 1st 1513
How do you get the 2nd torch fast on poptropica in the cave so the 1st doesn't burn out yet?
be fast be fast
When did vasco nunez de balboa start traveling?
September 1st 1513
If aunt Minnie drops a penny into a wishing well and it falls for 3 seconds before hitting the water How fast is it going when it hits?
30 m/s The acceleration due to gravity is 9.81 m/s2. So, after the 1st second, it is traveling 9.81 m/s. After the 2nd second, it is traveling 19.62 m/s. After the 3rd second, it is traveling about 30 m/s.
How can you make your 1st period come fast?
be patient
Is the Baltimore arena safe where do you recommend parking for 1st time visitors traveling with children?
hello
When was the first Earth Day celebrated?
Earth Day was 1st celebrated April 22, 1970.
How fast does carl Benz 1st car go?
30
When was the 1st earth day?
1956
How fast does a 3rd baseman throw the ball to 1st?
75 mph
Earth is closest to the sun on about?
April 1st
Is fast and furious the continuation of the 1st Fast and the Furious?
yes it follows the same story line but its its own movie years later
