If there is a strong gravitational attraction between the earth and sun, why don't they collide?
365601
for the earth to get closer to the sun, the sun would have to grow or somehow become heavier
1027284
because the sun's gravitational pull is much greater than the earth's...same reason the moon goes around the earth and not the other way around
345655
Gravity is also like another force. it follows Newton's 3rd law. Earth attracts us and we attract Earth.\n\nBut a = f/m. Since our mass is less, we move with greater acceleration. For earth, mass is huge and the effect is negligible.
223615
if only you could bring planet to standstill then  it would surely hit sun.the movement of planet around sun create a centrifugal force resisting gravitational pull.
336359
The force of attraction between moon and earth is 2.3 x 10^ 20 newton (very strong);\n\n between earth and a molecule of oxygen~ 5x 10^ (-25) newton (weaker);\n\n between two oxygen molecules touching each other ~2x10^ (-42) newton; (weakest).\n\nThe electrical attraction between a hydrogen atom’s nucleus and its single electron is 9x 10^ (-8) newton, whereas the gravitational attraction is only 4x10^ (-47) newton.\n\nThe force of gravitation is negligible only in the case of interaction between elementary particles. \n\nONLY WHEN IFTERACTION BETWEEN ELEMENTARY PARTICLES ARE CONSIERED GRAVITATIONAL FORCES ARE WEEK.\n\nHence it is not correct to call gravitational force as week force.\n\nThe force of attraction between moon and earth is 2.3 x 10^ 20 newton (very strong);
402813
No, I think it'll take too long for them to join together.  They're generally so far apart that the gravitational pull on each other is very very small.  Besides, the universe is constantly expanding, so instead we'll end up in a position where everything is just cold and the density of matter is very small.  That's just one theory, though.
151142
The gravitational attraction is felt between any two objects (assuming that they have mass).  Gravitation is the weakest fundimental force, so the attraction between two 60 kg persons sitting 6 meters apart is 6.67 nN.\nTHe bad news is that you can't prevent this force from acting, however it is a very small force.  I don't think you need to worry about gravity as the source of your 'physical' attraction.
503782
If there were 2 planets, one would probably catch up with the other. The slightest difference in their orbital speeds would lead them to come together and either collide or start orbiting around a point in space between the 2 planets. When they got very close, they would be gravitationally attracted to each other. They would either merge into one planet under gravitional force, or the gravitional force of the larger one might slingshot the smaller one out of this orbit into one further away from or nearer to the sun.\n\nThe distance at which a planet orbits from the sun is dependent just on its speed, not its mass. If the 2 planets had substantially different speeds, they would orbit at different distances from the sun.
430522
Like charges do not attract eachother.\n\nLike gravity does, but charges do not.
426494
The Earth is in receivership of the energy of the Sun. No one thing such as a planet can generate Gravity. Gravity is the product of a transmitter (Sun), a receiver (Earth) and an object on or about the receiver. All planets rotate about the strongest electro-magnetic generator along a predictable plane. Electricity flows in a path of a helix as in $ our dollar sign. The helix is doubled and at the null or the point of crossing is where the dust accumulates and forms planets. Thus we are fixed within the boundaries established when the first two particles of dust magnetically aligned N & S and bonded. We are fixed in position therefore we can not be the hitter. We could be hit by a comet or other foriegn body that are in orbit by another cosmic energy beyond our solar system. Astroids that are dust fragments adrift as a result of other cosmic collisions. Particles adrift will be attracted by like elements which follow magntic trails of moving celestrial bodies in search of a home.
383007
Yes, the first part is true.  Why does that make tides more "believable"?  \n Any two gravitaionally-bound objects will orbit around a common center of gravity.  (which is closer to the more massive object).
308950
In the Sun and stars, massive gravitational forces generate the conditions for fusion to occur naturally. The light we see from the sun is the result of tremendous fusion reactions that convert hydrogen to helium. On earth these conditions are much harder to achieve. Harnessing fusion power on Earth could be one of the best options for long term energy supply
534088
gravitational pull is different in different places on earth. but it is fixed. we cannot change it locally or globally. bcoz it depends on earth's mass, which we cant change.
66192
It is due to the slight orbital eccentricity of Earth rotation around the Sun. Since the orbit is not perfectly circular the distance between the two bodies varies.
315226
because all of these facts can be proven scientifically...it is just a matter of fact that all bodies are attracted to one another with equal and opposite forces.... but the larger the mass the more attraction there is and with gravity the sun has enough mass to keep the earth falling toward it and the earth has enough mass to keep the moon falling toward it and these same forces keep us from flying off the earth.....if you took some physics and chemistry classes it may start to make sense to you but you may still question it until you have taken calculus classes that put out the math to prove it so if you are interested in this maybe you should pursue it more it is all very interesting
677265
The Earth and our body exert forces on each other according to Newton's law of gravity.  Essentially mass attracts other mass.
221678
the earth doesnt fly towards the sun cuz there r more than one force acting upon it...theres the gravitational pull the sun has on the earth as well as the fact that the moon wants to remain in motion in the same direction.this applies to newtons 1rd law of motion(his first law is that an object will remain at rest until acted upon by another object or it will remain in motion until acted upon by an object..in other words,its inertia)...since the earth has both a side movement and the gravitational pull from the sun...those 2 forces cause the earth to orbit around the sun and not fly towards it or away from it. if u dont understand this...email me (pulga0888@yahoo.com) and ill try to explain it better..........now for ur second question...wat makes the earth spin...the earth spins because of the rotation of the magna and stuff in the earths core..well in the convection zone...im pretty sure thats the answer to the second question but im not positive...if u want me to check then email me.