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What are the forces acting on a satellite that is in a circular orbit about the Earth at an altitude at which air resistance is negligible?
Wiki User
∙ 14y ago
There's just gravity acting as the centripetal force keeping the satellite in its circular orbit. This force is equal to GMEm/r2 = ma = mv2/r.
Wiki User
∙ 14y ago
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Why do Satellites travel in a circular path?
Satellites orbit the Earth or other bodies due to a careful balance of their velocity and the gravitational attraction of the body. Essentially gravity pulls them down but their velocity moves then out (Newton's Fist Law of Motion) at the same rate. They keep missing the body they orbit.The path is not necessarily circular since the gravity over the Earth varies with the density of the ground below the satellite. They are also satisfied to be in an elliptical orbit (closer at some times than others). The moon is a good example of a satellite in an almost circular elliptical orbit. comets have wildly elliptical orbits.
Which physical quantity is conserved of an earth satellite?
Velocity of satellite and hence its linear momentum changes continuously due to the change in the direction of motion in a circular orbit. However, angular momentum is conserved as no external torque acts on the satellite.
Where is the acceleration of a satellite directed?
Straight toward the center of mass of whatever body it's orbiting. If the orbit happens to be circular, then that's the center of the circle.
What does the work-energy theorem say about the speed of a satellite in circular orbit?
Not very much, I would say. There is no work being done in this situation so there's no change in kinetic energy. So the satellite's speed remains constant. But we already knew the speed was constant. Perhaps I'm missing something.
How does plasmid allow for antibiotic resistance?
A plasmid (conjugative plasmid) that has a resistance gene on it, can transfer itself to another bacterial cell (called conjugation) or assist in the transfer of a non-conjugative plasmid that has a resistance gene to another cell (called mobilization). Whichever way it happens, once the plasmid is transfered to the new cell, this cell too may show signs of resistance to the particular antibiotic. This is one of the ways of the speard of resistance amongst bacteria
Does a circular orbit satellite accelerate towards earth?
Yes.
What is the circular path the shuttle makes in space?
low-orbit (satellite)
Does Archimedes principle holds a good for a satellite moving in a circular orbit?
no
What is a satellite orbit?
A satellite's orbit is just the path it follows around the Earth or some other planet.Satellites' orbits can be elliptical or circular.
Why does a body becomes weightless in an artificial satellite?
for the circular motion of a satellite a centripetal force is requid. these force is supplied by the gravitional force between the earth and satellite this is trueall objects in the satellite is zero ie, the object in a satellite feel weightlessness
How are a sphere and a cone alike and different?
Spheres are spherical, with no base, and have no flat surfaces. Cones have a flat, circular base, with a circular altitude protruding from the edges of the circle. The altitude's diameter slowly diminishes until all edges reach eachother.
The velocity required to keed a satellite in orbit around the Earth is called?
circular velocity
What is an example of Circular acceleration?
a satellite in orbit; it is moving at constant speed but is accelerating outward in circular acceleration, balanced by gravity acceleration (centripetal force).
What are some examples of forces that can act on objects to move them in a circular path?
-- Gravity (satellite in circular orbit) -- Electrostatic force -- Tension in a string (yo-yo) -- Constraint (marble in a circular track)
Where is a satellite when it stays at the same point above earths surface?
That's a "geostationary" satellite. It's roughly 22,000 miles above the equator, in a circular orbit.
How high should be the satellite to be a geostationary?
In order to appear motionless in the sky, the satellite must be in an orbit that is -- circular -- over the equator -- 22,400 miles above the surface
If a satellite's radial velocity is zero at all times its orbit must be elliptical or parabolic?
circular.
