why earth has gravity?

Question

Earth is compared to a large magnet.But magnet only attracts magnetic elements like iron , cobult etc , then why can earth attrcts magnetic and nonmagnetic elements both.

Answer 1

Because it has a huge mass (5.9742×10^24 kg)

All object attract other objects through gravity, but you only notice it when there is a huge mass.

The Sun has an even bigger gravitational effect - it keeps all the planets in their orbits.

Gravitational Attraction is given by the formula-: G M m / r

G = Gravitational Constant (6.67 x10^-11)
M = Mass of Larger Mass
m = mass of smaller mass
r = distance of separation

Gravity is a very weak force compared to Atomic and Nuclear forces, but acts over a much larger distances.

Answer 2

All object attract other objects through gravity, but you only notice it when there is a huge mass.

The Sun has an even bigger gravitational effect - it keeps all the planets in their orbits.

Gravitational Attraction is given by the formula-: G M m / r

G = Gravitational Constant (6.67 x10^-11)
M = Mass of Larger Mass
m = mass of smaller mass
r = distance of separation

Gravity is a very weak force compared to Atomic and Nuclear forces, but acts over a much larger distances.HENCE IT ATTTRACTS BOT MAGNETIC & NON MAGNETIC SUBSTANCES

Answer 3

Gravity and magnetism are two completely different forces. Anything with mass has gravity, including the earth, but magnetism depends on the properties of a material's electrons. The earth is magnetic because it has an iron core.

Answer 4

Every planetary body, including the Earth, is surrounded by its own gravitational field, which exerts an attractive force on any object. This field is proportional to the body's mass and varies inversely with the square of distance from the body. The gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g, is approximately 9.80665 m/s² or 32.17405 ft/s². This means that, ignoring air resistance, an object falling freely near the earth's surface increases in speed by 9.80665 m/s (around 22 mph) for each second of its descent. Thus, an object starting from rest will attain a speed of 9.80665 m/s (32.17405 ft/s) after one second, 19.6133 m/s (64.3481 ft/s) after two seconds, and so on. According to Newton's 3rd Law, the Earth itself experiences an equal and opposite force to that acting on the falling object, meaning that the Earth also accelerates towards the object. However, because the mass of the Earth is huge, the measurable acceleration of the Earth by this same force is negligible.

Answer 5

easily an effective question. although, dissimilar power is had to flee earth's gravity because the flexibility on the decrease floor of the earth is at a stabler state than the severe altitudes. as a count number of reality and staggering it may look, a satellite tv for pc easily isn't completely free from the earth's gravitational container. The weightlessness experienced is area is basically an glaring weightlessness and occurs because the satellite tv for pc is transferring at a severe speed compared to the earth's floor. As such, the centrifugal stress precisely cancels the gravitational stress. As for attaching a rocket to a baloon and launching it from there, it is theoretically plausible, yet virtually no longer available because it might require one important of a baloon and then again, dissimilar power will be required you acquire the helium/hydrogen gasoline.

Answer 6

I will try to give the answer for this.
According to Newton's Universal Gravitational Law, there will a force of attraction between two bodies in this universe and this "force of attraction between any two bodies like stars and planets & planets and planets is directly proportional to the product of their masses and inversely proportional to the square of the distance between them".
F=G Mm/r2 where G= universal gravitational constant . And also this law tells that a smaller body is always attracted towards the heavier body. That's why smaller objetcs are attracted towards the earth and all the planets are attracted towards the sun.

Answer 7

Simple, it has a large solid mass, that revolves. It's primarily the revolving that gives us gravity, if the earth stopped spinning suddenly, every thing would be jettisoned out into space. The less mass an object has, the less gravity it will be able to exert.
Also the larger an object is, the more gravity it will have.

Answer 8

coz of the iron and nickel present which act as a magnet-the earths magnetic field is the gravity

Answer 9

I think you like to live on this planet

Answer 10

Because every thing is made of atoms