was gravity lighter when the dinisours were about?
2006-12-11 17:44:52 · 7 answers · asked by derekjohnston06@btinternet.com 1 in Science & Mathematics ➔ Physics
Gravity does not have a density - it is a force and therefore cannot be measured as an amount per unit.
It is a relational effect caused by the mass of objects, in this case, "massive" objects (Earth, Moon, Sun).
Each of these 3 bodies create their own gravitational field. The Earth is of such size that the gravity of the sun and moon only has a "negligible" nett effect - the moon's gravity causes the tides, the Sun's keeps us in orbit around it.
What may have changed is the amount of force created by each, with the varying distances relative to each other over time.
2006-12-11 23:53:18 · answer #1 · answered by BushRaider69 3 · 1⤊ 0⤋
a million. Gravity is a function of mass and density. in comparison to three people, the Earth's density and mass has remained particularly plenty consistent for 4.5 billion years. 2. there's a hard and fast courting between mass, orbital distance, and orbital era. there is not any info to point that the scale of a three hundred and sixty 5 days has replaced materially. it would desire to be argued that the Earth is now denser than it replaced into 4.5 billion years in the past because of the accretion technique early interior the Earth's progression, and it may additionally be argued that the Earth is gaining mass from extraplanetary debris alongside with meteorites. the two a type of might have the effects of increasing gravity, however the result might not be measurable. there may well be mathematical calculations that practice on your question; possibly there are some physicists or astronomers accessible who grants those info.
2016-12-11 07:29:39 · answer #2 · answered by motato 4 · 0⤊ 0⤋
No. It is denser now, because excluding all other factors, the Earth recives about 100 million tons per year of meteoric ash that falls to it's surface from meteors burning up in the atmosphere. A lot of it falls into the oceans (71% of Earth's surface is covered with water). So no, it's gaining mass all the time, just using that logic.
2006-12-11 19:19:40 · answer #3 · answered by jwaitebsgl 1 · 0⤊ 0⤋
no the gravity and magnetic pull of the poles, is decreasing by 100% every 1000 yrs
so millions of years ago the pull would have been to dence for much life.
2006-12-11 18:02:03 · answer #4 · answered by Anonymous · 0⤊ 3⤋
All things change in time with evolution
2006-12-11 18:52:37 · answer #5 · answered by Scotty 7 · 0⤊ 1⤋
They're poles apart.
2006-12-11 18:56:44 · answer #6 · answered by Anonymous · 0⤊ 0⤋
it was the same, but the moon had more effect, it was closer
2006-12-11 17:48:06 · answer #7 · answered by Anonymous · 0⤊ 0⤋