answersLogoWhite

0

Kepler's third law says the square of the period of a satellite is proportional to the cube of its semi-major axis.

The fact that the Earth's orbit is not a perfect circle complicates matters, since it makes it depend a bit on at just what point in the orbit you cut its velocity in half.

However, if you were to somehow cancel out half the Earth's orbital velocity without destroying the Earth in the process (it's hard to know exactly how one could do this), at the very least its orbit would become a lot more eccentric.

(I've actually just used the very fun Universe Sandbox to simulate this, and it turns out that the Earth's orbit gets a lot more oval and the length of the year drops to a bit under half what it is now ... again, the precise details depend on exactly where in its orbit Earth is. Typically, though, the Earth's new orbit would take it from approximately the distance from the Sun it currently is to considerably inside the orbit of Mercury every year.)

User Avatar

Wiki User

12y ago

What else can I help you with?

Continue Learning about Astronomy

The velocity a rocket must reach to establish an orbit around earth is called?

The velocity a rocket must reach to establish an orbit around the Earth is called orbital velocity. It is the speed required for an object to overcome gravitational pull and maintain a stable orbit around the planet. The orbital velocity depends on the altitude of the orbit and follows Kepler's laws of planetary motion.


The velocity a rocket must reach to establish an orbit in space is?

The velocity a rocket must reach to establish an orbit in space is called orbital velocity. It depends on the altitude of the desired orbit and the mass of the body being orbited. In general, orbital velocity is around 28,000 km/h for low Earth orbit.


What happens to the orbit of earth when the mass of the sun is reduced to 75000?

If the mass of the Sun is reduced, the gravitational force it exerts on the Earth would weaken. This would cause the Earth's orbit to expand slightly, as the balance between the gravitational force and the Earth's velocity would be disrupted. However, the change would be very small given the massive size difference between the Sun and Earth.


Assume that the moon travel at constant speed in a circular orbit around the earth is the moon's velocity is constant?

Yes, since the moon is in a circular orbit around the Earth, its velocity is constant but its direction is changing continuously as it moves around the Earth. This constant velocity is necessary to maintain the circular motion without drifting away or falling into the Earth.


What is an elongated enclosed circle around the earth orbit?

An elliptical orbit is an elongated enclosed circle around the Earth. It is a path that gives the orbit its shape due to the gravitational pull between the Earth and the object. The orbit's shape varies depending on the object's velocity and distance from the Earth.

Related Questions

What is the relationship between the moon's velocity and its orbit around the Earth?

The moon's velocity affects its orbit around the Earth. The moon's velocity must be balanced with the gravitational pull of the Earth to maintain its orbit. If the velocity is too slow, the moon may fall towards the Earth; if it is too fast, the moon may move away from the Earth.


Is the escape velocity from the center of the earth different from the escape velocity from Earth's orbit?

Yes, very much so.


The velocity required to keed a satellite in orbit around the Earth is called?

circular velocity


The velocity a rocket must reach to establish an orbit around earth is called?

The velocity a rocket must reach to establish an orbit around the Earth is called orbital velocity. It is the speed required for an object to overcome gravitational pull and maintain a stable orbit around the planet. The orbital velocity depends on the altitude of the orbit and follows Kepler's laws of planetary motion.


The velocity a rocket must reach to establish an orbit in space is?

The velocity a rocket must reach to establish an orbit in space is called orbital velocity. It depends on the altitude of the desired orbit and the mass of the body being orbited. In general, orbital velocity is around 28,000 km/h for low Earth orbit.


What is the significance of the linear velocity of Earth in relation to its orbit around the Sun?

The linear velocity of Earth is important because it determines the speed at which Earth travels in its orbit around the Sun. This velocity helps maintain the balance between gravitational pull and centrifugal force, keeping Earth in a stable orbit and ensuring that it completes its journey around the Sun in a year.


The average velocity of the earth in its orbit is about miles per hour?

66,000


What happens to the orbit of the earth when velocity is halved?

Kepler's third law says the square of the period of a satellite is proportional to the cube of its semi-major axis. The fact that the Earth's orbit is not a perfect circle complicates matters, since it makes it depend a bit on at just what point in the orbit you cut its velocity in half. However, if you were to somehow cancel out half the Earth's orbital velocity without destroying the Earth in the process (it's hard to know exactly how one could do this), at the very least its orbit would become a lot more eccentric. (I've actually just used the very fun Universe Sandbox to simulate this, and it turns out that the Earth's orbit gets a lot more oval and the length of the year drops to a bit under half what it is now ... again, the precise details depend on exactly where in its orbit Earth is. Typically, though, the Earth's new orbit would take it from approximately the distance from the Sun it currently is to considerably inside the orbit of Mercury every year.)


How long would it take a satellite launched to a distance of 6700 from the center of the earth to orbit the earth?

For stable orbit @ 6 700 000 metres Velocity = sq. root ( G * mass earth / orbit radius ) = 7713.576 metres / sec Time for (sidereal) orbit = (2 * pi * radius) / velocity = 5457.56 seconds.


How is tangental velocity related to the moon falling around the earth?

Tangential velocity is the velocity at which an object moves along a curved path. In the case of the moon orbiting the Earth, the tangential velocity of the moon allows it to stay in its orbit and not fall into the Earth due to the balance between the gravitational force pulling it towards Earth and the centripetal force keeping it in orbit.


Can you consider earth as having a uniform velocity?

No. Earth's rotational velocity is slowing. Do you mean the velocity of Earth's revolution around the sun? The earth speeds up in its orbit until it reaches perihelion, and then slows until it reaches aphelion.


Velocity is the speed and direction a rocket must have in order to orbit he earth?

save