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GRAVITY!!!!
Madge Ledner
Wiki User
∙ 15y agoThere are two forces at work on an orbiting satellite. One is gravity, which attempts to pull the satellite down (considered as a centripetal force). The other is the inertia of the satellite's forward velocity (also called centrifugal force). The orbital speed allows the satellite to fall "past" the Earth as gravity pulls down on it. This appears as a force "opposing" gravity because some of the tangential force vector is applied "outward". If high enough in its orbit, a satellite will encounter little friction from the atmosphere and continue at the same velocity through the vacuum of space. So the stable balance between gravity and inertial velocity keep it circling the planet.
Wiki User
∙ 13y agoIf forces on an object are balanced, then the object has zero acceleration ...
its speed and direction of motion are constant, meaning that it keeps moving
in a straight line. So the forces on a satellite can't possibly be balanced ...
there must be a net force acting on it.
There is! It's called the mutual gravitational attraction between the earth and the
satellite. That's the only force on it, and the only force it needs to maintain orbit.
Wiki User
∙ 14y agoThe inward force on the satellite is the Earth's gravitational attraction. By Newton's Third Law, the satellite will also attract the Earth - in the outward direction. However, there is no outward force on the satellite. (If there was an outward force of the same strength as gravity, then the net force would be zero, and the satellite would move in a straight line, instead of circling Earth.)
Wiki User
∙ 14y agoThe Earth's gravitation, that attracts objects towards the center of the Earth.
Wiki User
∙ 12y agoThere is a delicate balance; the satellite has a lot of tangential velocity and momentum, and the balance between this and the Earth's own gravity keep satellites in orbit.
Wiki User
∙ 14y agoGravity.
Wiki User
∙ 14y agogravity
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A bullet traveling through the body causes tissue destruction through outward forces called?
Lacerbation
Why at height the artificial sateillte not pulled toward the earth?
The satellite is being pulled by the earths gravity all of the time, but the satellite also has an orbital velocity, meaning that is is travelling at high speed. These two opposing forces balance out, the 'sideways' speed of the satellite wants to take it away into space, but the gravity of the earth is always pulling it in. The satellite maintains its speed as there there are no frictional forces to slow it down in space, so it maintains an orbit.
Movement of one object in its object in its orbit around another object in space?
Well it is orbiting and it is caused by gravity, centripetal and centrifugal forces
What force keeps the moon in orbit around the sun?
The force of gravity that they exert on each other, and the velocities of the Moon and Earth which is their "inertia".
What external forces cause changes in the earth's surface?
I think denudation is one of the external forces that causes changes in the earth's surface. Denudation refers to the removal of rock material from the surface of the earth through the process of weathering and erosion.
For the sun to be stable the inward and outward forces within the sun must be?
In equilibrium.
What is the reaction force of the gravitational force by earth on a satellite orbiting earth?
According to Newton's Third Law, there is a pair of forces: Earth attracts satellite; satellite attracts Earth. It really doesn't matter which of the two forces you call the "reaction force".
What forces continually changes a satellites direction?
That's the mutual gravitational force of attraction between the satellite and the central body that it's orbiting.
What forces are at war within a star?
A star is the equilibrium of the outward force a continuous fusion explosion versus the inward force of the gravity of its huge mass.
Centrifugal force is the force that?
Centrifugal force is the outward force of a rotating object. The opposite force is the centripetal force which maintains the object in it's rotational position. In the case of an orbiting satellite it's rotational speed (revolutions per time period) creates the centrifugal force required to overcome the gravitational pull (centripetal force) of the body it is orbiting. ================================== The first answer is a neat, tidy, well-written summary of perhaps the most popular misconception in all of elementary Physics. Centrifugal force is a concept made up to account for the sensation of force that we perceive when we move in a curve. There need not be any outward force on a rotating object, and in general there is none. Centripetal force is real. It's the force required to bend the path of a moving abject away from a straight line. There is no outward force on an orbiting satellite. No force is required, and none exists, to 'overcome' the centripetal gravitational pull. In fact, if there were a force that overcame the gravitational centripetal force, then the forces on the satellite would sum to zero and it would travel in a straight line.
What provides the forces that causes the centripetal acceleration of a satellite in orbit?
When something is moving in circular motion there are two forces that concern the object, excluding forces affecting the motion of the object going around the circle as these would not make the acceleration constant, the force that pushes it inwards towards the centre of circle and the force that pushes it outwards towards the circle, the gravitational field from the mass at the centre of the orbit will provide the inward force, pulling the object inwards towards the centre, and the weight of the satellite will push it outwards towards the edge of the circle Correction- there is only one force- gravity- acting on a satellite in orbit. If it weren't for gravity, the satellite would fly off in a straight line. There is no outward pushing force.
Why does an orbiting satellites speed remain constant?
The satellite will not change speedbecause the gravity of the earth is a perpendicular force which only affectsdirection and not speed. Parallel forces must beapplied in order to change speed, butperpendicular forces only change direction.
What two forces are at work in a star?
In actual stars, all four fundamental forces (strong, weak, electromagnetic, gravity) are at work.
How does the concept of a field eliminate the idea of a action at a distance?
there is no contact between th objects,and the forces are acting at a distance putting this in terms of the field concept, we can say that the orbiting satellite and electron interact with the force fields of the object.
When a star's inward gravity and outward pressure are balance the star is said to be?
Hydrostatic equilibrium occurs when compression due to gravity is balanced by a pressure gradient which creates a pressure gradient force in the opposite direction. The balance of these two forces is known as the hydrostatic balance.
What means to put in compression?
Apply opposing forces inward on an object>--
What are the 2 forces that keep planets orbiting suns?
gravity and inertia
