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Gravity
One of the four fundamental interactions, gravity is responsible for the fact that any objects with mass attract one another. According to general relativity, it is a space time curvature, but according to quantum mechanics it is the result of exchanges of virtual gravitons.
4,784 Questions
The force that pulls objects toward each other?
There are various forces. Forces are of two types : Contact forces and Non-Contact forces.
Contact forces:
1.Muscular
2.Frictional
Non-Contact forces:
1.Gravitational
2.Magnetic
3.Electrostatic
All these{and many other} pull object towards one another.
Gravity
Why do objects accelerate during free fall?
Earth's gravity pulls all objects toward its center of mass, or in most cases toward the surface.
Gravity is a property of matter,and causes every mass to exert a force on every other mass. In this case, the Earth's gravity applies a force to every object on it, and that force will accelerate an object toward the Earth's center, unless it is prevented by some intervening mass. It will still have the potential to accelerate again if the intervening mass is removed.
Where is the center of gravity in the Tower of Pisa?
The center of gravity in the Tower of Pisa is located at the base of the structure, as the tower leans due to the uneven settling of the foundation soil. This causes the center of gravity to be slightly off-center from the geometric center of the tower, contributing to its characteristic lean.
Who said matter and energy are equal 1905?
Albert Einstein. He came up with the famous equation E=mc2 which explains that energy and mass are 2 different forms of the same thing and massive amounts of energy can be released from tiny amounts of matter.
The most noticeable effect of gravity (or a gravitational pull/field) is a natural tendency for objects with mass to attract one another. All objects have a gravitational pull; however, on Earth it is to actually pull objects downward. This force keeps us residents of earth on the ground. This approach to describing gravity was begun by Isaac newton nearly 400 years ago, and while it allows us to fly airplanes and spacecraft, it is descriptive and doesn't offer a theory of how gravity actually works.
Nobody totally understands exactly how gravitation works, but we know what many of its effects are. We know that gravitation is some kind of interaction between mass, energy and the Universal fabric that we call "Spacetime", and that it acts between objects large and small throughout the Universe.
(1) Gravitation is a relatively weak force, and is usually only noticed when one is dealing with huge masses in excess of trillions of kilograms. This force keeps our air from drifting away from the Earth into outer space, but it doesn't pull you off your feet when you walk near a huge building or even a mountain.
(2) Somehow mass has the ability to alter the shape of nearby Spacetime. An object with as much mass as the Earth creates a sort of "hole" or "well" in Spacetime; you don't float away into outer space because you are trapped in the Earth's Spacetime "well". It takes a lot of energy to climb out of the Earth's "well"; we presently do it by using rockets that burn vast amounts of fuel to push their way up against the Force of Gravitation.
(3) Every object theoretically has its own Spacetime "well" into which other objects can fall; but, it's usually only significant when one is dealing with really large masses.
(4) Sometimes objects don't fall into a "well", but instead wind up orbiting around the "wall" of the "well"; for example, a moon or a ring of moonlets orbit around the "well" of a planet, or a planet orbits around the "well" of a star. The orbiting object is actually traveling in a straight line, but the shape of Spacetime has been bent so that the straight line looks like a circle or ellipse to us. This requires some sophisticated understanding of geometry to visualize and accept.
Demonstration:
You might begin to grasp the concept by performing the following activity. Take a long narrow piece of paper a few centimeters wide and about a meter long; label the 2 furthest ends of the paper A and B. Lay the paper flat and draw a straight line on one side from A to B. Now curve the piece of paper, and tape ends A and B together. Geometrically, your straight line is still a straight line on the paper, but now your straight line looks like a circle because its paper has taken the shape of a circle. This may demonstrate what the subject of Spacetime "bending" is about.
(5) The paths of energy waves (such as beams of light) also appear to change shape as they pass through gravitational "holes" or "wells." Some "wells" are so powerful that they can trap light and never let it out again; we call these irresistible gravitational traps "black holes".
(6) In the Standard Model (a theory of physics that describes subatomic particles and how they interact) gravity is mediated by the exchange of gauge particles. These hypothetical particles are called gravitons. (We do know a bit more about gravitons than the name. For instance, gravitons must have no mass, no electrical charge, they must travel at the speed of light, and they must have a spin number of 2.)
(7) Our biggest problem with trying to understand what gravitation is and how it works is that our understanding of the Spacetime behavior of gravitation (discovered about 100 years ago by Albert Einstein) doesn't appear to have any recognizable connection with our understanding of the behavior of subatomic particles. The branch of physics that studies subatomic particles is called Quantum Mechanics. We need a better theory of gravitation, or a better theory of quantum mechanics; or perhaps there is an as-yet-undiscovered "grand unified theory" or "theory of everything" that will supply the missing puzzle pieces.
(8) Theoretically, gravity is a byproduct of the electrostatic forces of atoms in random motion relative to each other. All mass gives off electromagnetic radiation, all mass is made up of charges, and all charges obey the law of superpositioning. Sometimes atoms attract and sometimes they repel relative to each other, but overall they attract due to the Inverse Square Law, i.e. when they do attract they move further, but the total difference is to an incredibly smaller power. Another form of gravity is inertial; this type of artificial gravity is felt when you turn a corner and feel G-forces. This may be due to electrostatic resistance (perhaps in the aether).
There is also anti-gravity, the opposite and equal reaction that expands the Universe at an accelerated rate.
Answer2:
Gravity works by creating a velocity field around matter, such that v2 = GM/r. This velocity field works on matter in that field creating an Energy
W = -mGM/r + cmV = -mv2 + cmV = -vh/r + cP.
The energy consists of a scalar or potential energy -mGM/r = -mv2 = -vh/r defined by Newton, but Newton and Einstein did not consider the other part of the Gravitational energy, created by the velocity field cmV = cP. This is a vector energy, The vector field operatted on the mass m to produce a vector Momentum P=mV and also the vector energy the Momentum energy, cP. Thus the Law off Gravity operates to create a Quaternion Energy, the sum of a scalar and 3D vectors, W = -vh/r + cP = [-vh/r, cP].
Physics defines energy as a scalar quantity and does not recognize vector energy like cP,
Newton knew about Mpmentum and had a sense of vectors, and used the vector energy in his vector Force dP/dt which I recognized as dcP/dr = cdP/cdt = dP/dt.
The vector energy is the so-called "Dark Energy" and is responsible for the so-called anti-gravity force. The Divergence of the vector energy cP is Del.cP= -cDel.P= -cp/r cos(P). This the centrifugal force opposing the centripetal force of gravity mv2/r = vp/r. These two forces produce the theoretical defined redshift as the Continuity Condition:
d(-vh/r)/dr = cDel.P
vp/r = cp/r cos(P)
v/c = cos(P) is the redshift the designator of Continutity Condition and the balance of forces and the stable orbit. The Vector energy cP prevents the earth from falling into the, prevents the electrons from falling into the nucleus and the Cosmos from collapsing. The vector energy, created by the gravitational field is the missing energy, hidden in plain sight.
To sum up, Gravitational Energy is a Quaternion quantity, W = -vh/r + cP = [-vh/t, cP].
The first derivative of the energy is force F = [d/dr, Del] [-vh/r, cP]
Force F = [vp/r -cDel.P, cdP/dr - Del vh/r + cDelxP]
F = [vp/r - cp/r cos(P), -cp/r 1P + vp/r 1R + cp/r sin(P) 1RxP]
At the Equilibrium Condition or Invariant Condition F=0 and
0 = cp/r[v/c - 1, -1R + v/c 1R] and the Equilibrium Condition is
0 = (v/c -1)[1,1R] amd v/c =1 and v=c at Equilibrium Condition.
This indicates the Cosmos has a stable Condition and is Bounded.
c2 = GM/r is the Boundary Condition and the force is
F0= c4/G = 1.215E44 Newtons
This is How Gravity Works,
Gravity creates a velocity field with mass M and this field acts on
matter m to create a Quaternion Energy W= -vh/r + cP. The scalar enrgy is a Boson and
the vector energy is a Fernion.
How is gravity affected by mass?
The greater the gravity, the greater the weight, even though the mass does not physically change. The stronger pull makes it heavier. The mass of something can never change - weight only describes the mass of something under the pull of gravity while mass is constant no matter where.
How is weight related to gravity?
You need to know gravity's acceleration to find the weight of an object. This explains why you may weigh X amount on Earth and Y amount on Pluto.
Calculate using:
F = M * A
also known as
Weight = Mass * gravity
(On earth, gravity's acceleration is ~9.81m/s/s)
By constantly grabbing boobs of any female (young or old) and some men (biiiiiggg men) and making them move we can safely assume that gravity is a pedifile
What are five facts about gravity?
Five uninteresting facts about gravity are:
- Astronauts cannot cry in space. Gravity pulls your eyes down to earth and so you cry, if you are in space or on a planet (that has less gravity than Earth), a moon or an asteroid there wouldn't be enough gravity to allow you to cry.
- Gravity can cause world war 15 and the growth of plants and other Panda Monsters. Astronauts grow a few inches out in space without the force of gravity pulling them down, but back on Earth they shrink back to their original height.
- you will explode if you eat on the moon
- get a life, stop asking stupid questions!
- yeah its true thanks for helping
Why doesnt mercury fall into the sun Many say it is due to gravity But gravity between what?
the ansewer is not gravity. Gravity is what keeps it around the sun. you see mercury has linear motion, which just means it is going strait. if the sun had no gravity mercury would simply fly past the sun and out of the solar system. Also if mercury had no linar motion it would simply fall strait into the sun. so.. it is the balance of gravity with mercury's linear motion that keeps it in orbit around the sun.
Gravity is the force that pulls all objects to the centre of the earth. It also works in space pulling planets towards the sun and the moon to the earth. Gravity is effected by mass, the greater the mass the heavier the pull of gravity
What is the specific gravity of applesauce?
The specific gravity of applesauce can vary, but it typically falls within the range of 1.006 to 1.040. This measurement depends on factors such as the sugar content and consistency of the applesauce.
What is needed to describe a vector quantity?
To describe a vector quantity, you need both magnitude (size or length of the vector) and direction (the orientation or angle of the vector relative to a reference axis). This information can be represented using coordinates, components, or angles depending on the context. A vector is typically denoted by an arrow above the symbol, such as "→A".
What is gravity's effect on motion?
What is the formula for working out speed if you have time and distance values?
You must divide the distance by the time. (miles divided by hours, or miles per hour) For example, if you're traveling 60 miles in 3 hours your speed is 20MpH (60 divided by 3)
Are spirit levels affected by gravity?
Yes, spirit levels are affected by gravity. The bubble in a spirit level moves to indicate the direction of gravity, allowing for accurate measurements of level and plumb. The bubble moves to the highest point in the vial, which is perpendicular to the force of gravity acting on the level.
Gravity is not energy but a force of attraction between objects with mass. It is responsible for keeping planets in orbit around the sun and objects firmly planted on the ground. Energy can be produced by the movement and interaction of objects influenced by gravity, but gravity itself is not considered a form of energy.
What is the strength of gravity on mercury?
the gravitational force of the mercury is extremely less that is why there is no atmosphere around it.
Improved answer:
In fact the gravitational field is just under 40% of Earth's.
A measure of the pull of gravity on an object of given mass is its?
weight. Weight depends on the mass of the object and the acceleration due to gravity.
Why is water transported in plant tissues against gravity?
Water is transported against gravity in plant tissues through a process called transpiration. This is primarily driven by the cohesion and adhesion properties of water molecules, allowing it to be pulled up through the plant's xylem vessels. Additionally, the process is also facilitated by the transpiration stream, which helps maintain a continuous flow of water from the roots to the leaves.
How much gravity has the sun got?
The gravity of the sun is massive. A 100 lb person would weigh over 2100 lbs on the sun!
What inspired Isaac Newton to develop his law of gravity?
There is a popular story that Isaac Newton was sitting beneath an apple tree when an apple dropped on his head and this inspired him to create his universal theory of gravitation.
The story is probably an exaggeration. In Newton's account of the event he was sitting at his window at his home, Woolsthorpe Manor and watched an apple fall from a tree in the garden which turned his thoughts to gravity.
The real discovery of Newton was not "gravity." The fact that things fall towards the Earth when they are dropped was known in pre-history. It wasn't even to suggest that gravity extended a long way and causes the orbits of the planets. This had already been suggested by Galileo Galilei. What Newton came up with was a formula for how big the force of gravity will be between any two objects and show that this accurately accounts for the motion of the moon and planets.
The formula was so good that it remained in use as the best prediction of gravitational force until Einstein's theory of General Relativity in the 20th Century and is still used today where relativistic effects do not apply.
What is the centre of gravity of trapezium?
Trapezoid The center of gravity of can be estimated by dividing the trapezoid in two triangles. The center of gravity will be in the intersection between the middle line and the line between the triangles centers of gravity.
If everything has gravity why aren't you noticeably pulled by gravity of a mountain or a building?
In fact you are attracted to the building's mass, but by a very tiny quantity.
A number of experiments have been devised to measure this force, and those of Mitchell, and of Cavendish are notable. (Check out Cavendish balance.)
One experiment, the Schiehallion experiment measured the lack of parallelism of measurements made on opposite sides of a mountain, looking at astronomical targets to measure G.
Surveying close to a large mountain mass has an error due to the mass of the mountains, of importance near the Andes and the Himalaya.
