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. 5..
Beside this, what are the factors that determine the speed of a satellite?
Two factors control the instantaneous speed of a satellite: the semi-major axis (a) and the eccentricity of the orbit. Over a complete orbit, then the only factor is the semi-major axis, a, which is equal to the mean altitude of the satellite, measured from the centre of the attracting body.
Secondly, how do satellites maintain speed? A satellite maintains its orbit by balancing two factors: its velocity (the speed it takes to travel in a straight line) and the gravitational pull that Earth has on it. A satellite orbiting closer to the Earth requires more velocity to resist the stronger gravitational pull.
In this way, what is the speed of a satellite orbiting at that height?
Orbital velocity is the velocity needed to achieve balance between gravity's pull on the satellite and the inertia of the satellite's motion -- the satellite's tendency to keep going. This is approximately 17,000 mph (27,359 kph) at an altitude of 150 miles (242 kilometers).
How many satellites are in space?
Currently there are over 2000 artificial satellites orbiting the Earth.
Related Question Answers
What factors affect orbit?
There are two forces that keep the planets in their orbits. - Gravity. Gravity is the primary force that controls the orbit of the planets around the sun.
- Inertia.
- Gravity Working with Inertia.
- Velocity and Gravity.
How do you find the velocity?
Divide the total displacement by the total time. In order to find the velocity of the moving object, you will need to divide the change in position by the change in time. Specify the direction moved, and you have the average velocity.What is the time period of satellite?
The period of a satellite is the time it takes it to make one full orbit around an object. The period of the Earth as it travels around the sun is one year. If you know the satellite's speed and the radius at which it orbits, you can figure out its period.What is Escape Velocity of Earth?
11.186
What do you mean by Orbit?
An orbit is a regular, repeating path that an object in space takes around another one. An object in an orbit is called a satellite. In addition to the planets' orbits, many planets have moons which are in orbit around them.How do you find the centripetal force?
Centripetal force is measured in Newtons and is calculated as the mass (in kg), multiplied by tangential velocity (in meters per second) squared, divided by the radius (in meters). This means that if tangential velocity doubles, the force will quadruple.What is the value of G?
In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s2 on Earth.What is the speed of the sun?
The Sun's orbital speed around the Galaxy: ~200 km/s (720,000 km/h, 450,000 mph) The speed of the ground beneath your feet, as a result of the Earth's rotation: 1000 km/h (600 mph) at the latitude of Sheffield (53 degrees); it goes up to 1670 km/h (1000 mph) at the equator.What is orbital distance?
In physics, you can use orbital distance to determine how long it takes for an object to revolve around another one. For example, you can calculate how long it takes Mars to travel around the Sun, given its distance from the Sun, in astronomical units.Does mass affect orbital speed?
No, the mass of a body orbiting a second body is irrelevant in determining orbital parameters, as long as the first body is much larger than its satellite. You can see this reflected in Kepler's third law: The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.What is considered low Earth orbit?
A low Earth orbit (LEO) is an orbit around Earth with an altitude above Earth's surface of 2,000 kilometers (1,200 mi), and an orbital period between about 84 and 127 minutes. Objects below approximately 160 kilometers (99 mi) will experience very rapid orbital decay and altitude loss.How do weather satellites work?
How do weather satellites work? Weather satellites carry instruments called radiometers (not cameras) that scan the Earth to form images. The first is a "geostationary" orbit, with the satellite at a very high altitude (about 22,500 miles) and orbiting over the equator at the same rate that the Earth turns.What is an orbital radius?
For approximately circular orbits the orbital radius is the distance from an object in space to the body which it is orbiting.Does orbital speed increase with distance?
The velocity of an orbit around some central object can be easily calculated for a circular orbit. We see that for α<−1, the orbital velocity decreases with distance. For a constant force, the orbital velocity actually increases. The velocity would stay constant for a force proportional to r−1.What fuel do satellites use?
Most satellites orbiting the Earth using hypergolic fuel/oxidizer combinations (meaning they combust when they contact each other. For the large geostationary birds I operate, this means Monomethylhydrazine (MMH) for the fuel and Nitrogen Textroxide (N2O4) for the oxidizer.How do you launch a satellite?
How Is a Satellite Launched Into an Orbit? All satellites today get into orbit by riding on a rocket. Many used to hitch a ride in the cargo bay of the space shuttle. Several countries and businesses have rocket launch capabilities, and satellites as large as several tons make it into orbit regularly and safely.Do satellites run out of fuel?
Satellites that have run out of fuel, do generally remain in the same orbit for years. Satellites in low earth orbit gradually burn up into the atmosphere where as higher orbit satellites remain as space junk for tens of years before they enter the atmosphere.Is fuel is necessary for an artificial satellite?
If we consider ideal vacuum conditions , then a satellite(artificial) does not need any fuel while it is set in an orbit around the earth. The sole condition necessary for it to remain int the orbit is the gravitational pull of the earth being balanced by the centripetal force caused due to its rotation.How do things stay in orbit?
How Do Objects Stay in Orbit? An object in motion will stay in motion unless something pushes or pulls on it. Without gravity, an Earth-orbiting satellite would go off into space along a straight line. With gravity, it is pulled back toward Earth. 
