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Balance of force of gravity by centripetal force
Yes, for any given orbital radius (r) only one velocity will give stable orbit, this is called the critical velocity.
Pick your orbital radius and satellite mass (m)
Use Gmm / r2 to calculate gravitational force (f),
then find velocity from : v = sq root ( (r * f ) / m)
What else can I help you with?
What is Velocity of projection of satellite?
The kinetic energy of an object is energy due to its motion and its mass. Here's the formula: Ek = 1/2 mv2 Kinetic energy is equal to one half times the mass of the object times the square of its velocity. You can see that the velocity factor has a bit more importance because velocity is squared to calculate kinetic energy. To discover the kinetic energy of a satellite, you'll need to know its mass and its orbital speed. Orbital speed will vary depending on the height of the orbit, and its eccentricity. In circular orbits, speed can be constant, and it may range from just under 7 km/sec to just under 8 km/sec. In eliptical orbit, the figures can vary even more ('cause it moves faster when its at perigee - closer to earth, and slower when it's at apogee - farthest away). If you want actual numbers, you'll have to supply the mass of the orbiting body and specify an orbital path. Naturally you've got links to related Wikipedia articles to help you, and those links are below.
What is the minimum velocity needed to place something into orbit?
To orbit around Earth, the centripetal force of the object must equal the gravitational force. Therefore: mv2/r = GMm/r2 v2 = GM/r v = sqrt(GM/r) Plug in G: universal gravitational constant (6.67*10-11 Nm2/kg2), M: mass of Earth (5.97*1024 kg), and r: radius of orbit as measured from Earth's centre (e.g. 1000 km above the ground would correspond to an r of 1000 km + radius of the Earth (6367.5 km = 7367.5 km = 7367500 m)
What does a planet in an elliptical orbit need to do to sweep out equal areas in equal amounts of time?
It needs to change its velocity, which of course it does. I know you realize this, but keep in mind that the planet doesn't 'need' to sweep out equal areas of its orbital plane in equal amounts of time. It's a characteristic of elliptical orbits.
State at which the moon's orbital and rotational periods are equal?
Synchronous rotation occurs when the moon's orbital period (the time it takes to orbit the Earth) and rotational period (the time it takes to rotate on its axis) are equal. This means that the same side of the moon always faces the Earth.
If a body falls freely from infinity then it will be striking the earth with what velocity?
The body will be striking the Earth with a velocity equal to its escape velocity, which is around 11.2 km/s. At this velocity, the body will have enough kinetic energy to overcome the gravitational pull of the Earth and reach the surface.
What is the effect on the orbital velocity of the sattelite if its orbital radius is doubled?
You can calculate this with Kepler's Third Law. "The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit." This is valid for other orbiting objects; in this case you can replace "planet" with "satellite". Just assume, for simplicity, that the satellite orbits Earth in a circular orbit - in this case, the "semi-major axis" is equal to the distance from Earth's center. For your calculations, remember also that if the radius is doubled, the total distance the satellite travels is also doubled.
What is the difference between escape velocity and orbital velocity?
Escape velocity is the velocity that an object needs in order to reach infinite distance, wherein the force will equal to zero. Orbital velocity is the velocity of an object so it can stay in orbit.
What is Velocity of projection of satellite?
The kinetic energy of an object is energy due to its motion and its mass. Here's the formula: Ek = 1/2 mv2 Kinetic energy is equal to one half times the mass of the object times the square of its velocity. You can see that the velocity factor has a bit more importance because velocity is squared to calculate kinetic energy. To discover the kinetic energy of a satellite, you'll need to know its mass and its orbital speed. Orbital speed will vary depending on the height of the orbit, and its eccentricity. In circular orbits, speed can be constant, and it may range from just under 7 km/sec to just under 8 km/sec. In eliptical orbit, the figures can vary even more ('cause it moves faster when its at perigee - closer to earth, and slower when it's at apogee - farthest away). If you want actual numbers, you'll have to supply the mass of the orbiting body and specify an orbital path. Naturally you've got links to related Wikipedia articles to help you, and those links are below.
Can satellites at different heights have equal velocities?
Yes, satellites at different heights can have equal velocities if they are in circular orbits with the same period. In this case, the satellite at a higher altitude will have a slower velocity than the satellite at a lower altitude, but their velocities will be equal at any given point in their orbits.
Why the weight of a satellite and the centripetal force keeping the satellite in orbit is not a valid example of action and reaction to which Newton's Third Law of Motion applies?
First, Newton's Third Law of Motion says that for every action, there is an equal and opposite reaction.In this scenario, the Earth pulls the satellite. The equal and opposite reaction force would be the pull of the satellite on the Earth, not the centripetal force.The Centripetal force is the RESULTANT force on the satellite that accelerates it(although its speed does not change, velocity changes because the satellite changes direction constantly- it moves in a circular path. And for velocity to change, there must be a net force acting on the satellite), and keeps it in orbit. Please post on my message board if you have any other specific questions.
What is the velocity in which the body covers equal displacements in equal intervals of ttime?
The velocity of the body is constant if it covers equal displacements in equal intervals of time. This is because velocity is defined as the rate of change of displacement with respect to time. If the body is covering equal distances at equal intervals, then the velocity remains constant.
When is the instantaneous velocity equal to avg velocity?
Mainly, when the velocity doesn't change. Also, in the case of varying velocity, the instantaneous velocity might, for a brief instant, be equal to the average velocity.
How does satellite create an orbit?
The orbit of every planet is an ellipse with the Sun at one of the two foci.A line joining a planet and the Sun sweeps out equal areas during equal intervals of time.[1]The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbitHERE THE PLANET IS THE SATELLITE AND SUN AS OUR EARTH
When do you say that the velocity of the car is equal?
when a car travels equal distance in equal intervals of time its velocity is uniform and equal
What is the minimum velocity that a stream must have in order to transpport particles with diameter equal to 0.04?
The minimum velocity required to transport particles with a diameter of 0.04 in a stream is known as the critical velocity. It can be calculated using the Shields criterion, which takes into account the particle size, density, and fluid properties. The critical velocity is the velocity needed to start moving the particle and overcoming the forces acting on it due to gravity and drag.
When average velocity and average speed is equal?
For the instantaneous value of average velocity, average speed and average velocity are equal.
What makes the satellite orbit?
A satellite will orbit due to a gravitational field, which is formed by the gravitational force between the satellite and stellar body. This force is equal to the product of the gravitational constant, and the masses of both objects divided by the square of the distance separating them.
