2007-02-12 07:18:42 · 9 answers · asked by biff 1 in Science & Mathematics ➔ Physics
Gravity can also be viewed as a curvature of spacetime. If you put a bowling ball on your bed, it will make an indentation around itself. If you put a marble close enough to it, the marble will roll towards the bowling ball, not because the bowling ball is "pulling" on the marble, but that the marble is falling towards the indentation that the bowling ball's larger mass has created.
2007-02-12 09:54:19 · answer #1 · answered by soulestada 4 · 0⤊ 0⤋
Gravity is the attraction of mass to mass. Not magnetic. Example We had 2 satellites going around the poles and it required much more fuel to keep them separated.
There was when we tried to park a satellite in a synchronous orbit ,We maneuvered it to where we wanted it to be and the satellite would not set there. The gravitational pull varies as the mountains under the satellite. There were also Vallie's where u could park it with no effort .
2007-02-12 15:44:09 · answer #2 · answered by JOHNNIE B 7 · 0⤊ 0⤋
Gravity is the force that pulls on any two objects.
It is directly proportional to the mass of each object, but proportional to the inverse square of the distance between them.
gravitational force = GM1M2 / r^2
is newtons law of gravitation.
on earth, because M1 = mass of earth is so huge, and r is pretty much constant even if you're up a mountain, this formula gives force = Mg
where g = 9.8 m/s^2 and M is the mass of the object.
2007-02-12 15:26:00 · answer #3 · answered by aeronic 2 · 1⤊ 0⤋
Gravity is something that holds you down to the earth. But the moon has no gravity and that is why when you go on the moon you float.
2007-02-12 15:22:38 · answer #4 · answered by Cat girl 1 · 0⤊ 1⤋
That force of nature which manifests itself as a mutual attraction between masses, and whose mathematical expression was first given by Newton, in the law which states " Any two particles of matter attract one another with a force directly proportional to the product of there masses and inversely proportional to the square of the distance between them. F=G m1xm2/d2. Where F is the force of gravitational attraction between bodies of mass m1 and m2, separated by distance d2. G is the constant of gravitation and has the value 6.670x10ng11 Nm2 kg ng2. Sorry equations don't write well in this format
2007-02-12 15:42:33 · answer #5 · answered by patlamb41 2 · 0⤊ 0⤋
Gravity is the force that attracts matter to matter.
2007-02-12 15:24:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
The Earth is made of lots of melted iron and colbolt. So this makes the Earth like a giant magnet. And your body has iron in it. So you are pulled to the Earth. This is called gravity.
2007-02-12 15:27:05 · answer #7 · answered by divaL 3 · 0⤊ 2⤋
Have you ever had something fall and smack you on the head?
Have you ever fallen and thought you broke your butt ?
Wonder why parachutes don't float up?
Or, why your boomerang hits the ground ?
Well, now you have it , that's gravity
2007-02-12 15:39:38 · answer #8 · answered by Anonymous · 0⤊ 0⤋
I'm not sure if scientists know that yet.
2007-02-12 15:27:09 · answer #9 · answered by Sunday P 5 · 0⤊ 0⤋