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It is the point on the rocket where it balances it self, with the pull of gravity, and the amount of thrust it applies back on the ground to move up.
In the middle, but it changes constantly as the pressurized liquid leaves the bottle.
There is no gravity in space, therefore there is no gravity to help a rocket landing on the moon.
Yes; the gravity from different sides should cancel, for a net result of zero gravity.
Alright, it is mainly the force of gravity. This is because if there was no gravity, you do not heat energy to fire the rocket up.
I assume you are talking about a model rocket. Center of pressure needs to be below center of gravity in order for the rocket to fly straight. Mathematically, the rocket will tilt around the center of gravity but appear to be pushed from the center of pressure, hence the need for the center of pressure to be below the center of gravity, otherwise the rocket will just corkscrew off the pad. The fins move the center of pressure down.
It is the point on the rocket where it balances it self, with the pull of gravity, and the amount of thrust it applies back on the ground to move up.
You should test your rocket's stability BEFORE you launch! Locate the center of gravity (CG) on your rocket and tie a long string (about 6 feet long) around the body of your rocket at the CG point. Take the other end of the string and swing it over your head around your body. If it flies straight, you're good. If it wobbles or tumbles, then you need to shift the CG more forward of the center point. If you don't know the relationship of "center of gravity" and "center point", you should read up first before you consider launching a rocket. Apogee.com is a great site to learn from. Good luck!
Because you can move the center of the gravity farther.
near the nose of the rocket
It's not. By your use of the term "center of pressure" I'll make a guess that you're talking about model rocketry. In that case, the center of pressure can be above or below the center of gravity, but you must make it lower in order to make your rocket stable.When a rocket in flight is tipped - say by a gust of wind or some such - it rotates about its center of gravity. (This actually is true of any object in mid air or space, not supported by an outside force.) When the rocket is moving straight along its central axis the fins are not really doing anything. But when the rocket is tipped and its velocity vector is not along its axis, then the fins generate a lateral force, which acts through the center of pressure. (That's what "center of pressure" means.) Now, if the center of pressure is above the center of gravity then the force that the fins apply will make the rocket tip further, and the rocket is unstable. If the center of pressure is below the center of gravity then the force from the fins straightens the rocket out, and the rocket is stable.This is much easier to explain with pictures. See the related link for a fully illustrated explanation.
In the middle, but it changes constantly as the pressurized liquid leaves the bottle.
The model rocket rests on the center of gravity, which holds it in place. This makes sure the weight of the object is evenly distributed.Ê Another force that holds the rocket the center of pressure. All the aerodynamic forces of the rocket are centered.
It is always different depending on the object. For example a female humans' center of gravity is in the hip. as a male humans' center of gravity is in the chest. But once you have found the center of gravity in an object the center of gravity should be the same in every object like it.
There is no gravity in space, therefore there is no gravity to help a rocket landing on the moon.
Gravity doesn't change, no matter where you are. One of the characteristics of the forces due to gravity is that they're inversely proportional to the square of the distance between the two masses involved. So as your distance from a planet changes, the mutual forces attracting you and the planet toward each other change in inverse proportion to the square of the distance between you and the center of the planet.
In ballet, he center of gravity should always be in the middle of your body, no matter what you are doing.