NewStats: 3,263,591 , 8,180,669 topics. Date: Friday, 06 June 2025 at 05:14 PM 4ssn6z3e3g |
(1) (2) (of 2 pages)
![]() |
Taylor94:9166714247 opay |
![]() |
see
|
![]() |
apply Graham's law of diffusion, then use formula for percentage composition
|
![]() |
dhardline: The Earth is always being pulled towards the Sun by gravity. If the Earth were stationary compared to the Sun, it would fall into the sun under the force of gravity. However the Earth is actually moving sideways compared to the center of the Sun at 3 km/second (~2 miles/second). The Earth is not moving fast enough to "escape" the Sun's gravity and leave the solar system, but it is going too fast to be pulled into the Sun. 1 Like |
![]() |
dhardline: If you throw a ball upwards, you will notice that, for a large chunk of it’s motion, the ball is not falling towards the Earth. It is also not gaining speed or combat the Earth’s gravitational pull. The reason it is not falling towards the Earth is that it is just going too fast in the wrong direction for that to happen. Of course, the ball does eventually return to the Earth. It returns because it is still going too slow to completely get away. It is technically possible top throw the ball so hard that it will never return. Again, it does not gain speed on it’s journey, and nor does it combat the Earth’s gravitational pull. In fact, the motion would be impossible if it did. There is an in-between condition… if you start out very high up and throw the ball at an angle, instead of directly away from the Earth, the thrown ball will arc around and fly back only to miss the Earth and continue on again. It can continue this motion indefinitely, if you are careful enough. This condition is called an orbit. The ball does gain and lose speed, like a pendulum does, unless the path is an exact circle. However, it does not have to combat the Earth’s gravity. In these examples, the energy to “combat” the Earth’s pull was provided before the current motion: someone or some process has to get the ball up very high and throw it, which takes energy … and it is the same with the Moon. The evidence is that the Earth and the Moon formed together, that is when the energy was applied. The “sideways” speed of the Moon stops it from crashing into the Earth. In fact, the Moon is still slowly moving away from the Earth. So technically the Moon does not hit the Earth because it is still climbing (it has not run out of upward speed yet). We don’t expect it to ever fall the Earth, though, because it is slowing into one of the orbital conditions. Technically, the moon is falling to Earth. Constantly. But, it also has motion perpendicular to the pull of Earth’s gravity. These two find a balance in a curve of constant “falling” around the Earth. We call that an orbit. And because there is essentially nothing to slow the moons motion in space (no air, etc.), the moon keeps its motion fairly constant. No need to gain speed because it never loses speed. Now, over very long time scales, the moon is actually moving away from the Earth due to intersections between these two bodies. The Earths rotation is slowing down and the moon moves farther away. Billions of years ago the Earth’s day was hours shorter and the moon much closer. So, the moon is both falling to Earth and moving away from it. Simultaneously. It’s an fascinating world we live in. My point is that the moon maintains an orbit due to its velocity, therefore there is a limit to which it can affect earths gravity, hence it can only cause tidal movements and not complete removal of water from earth's gravitational field. The moon itself does not completely overcomes earth's gravitational pull, it is only maintained due to its orbital velocity. 5 Likes |
![]() |
dhardline:About gravity, I think gravity have much less effect on a fly than on large water bodies, the more massive an object is, the more gravitational pull it will experience. density has a Linear relationship with mass of an object. My point is the force to hold oceans is different from that which holds a fly. Every object experiences gravitational pull differently. The magnitude differs 1 Like |
![]() |
1 Like |
![]() |
na so the flyvid 20 take start, I'm leaving this planet
2 Likes |
![]() |
Pls some one should help me find this limit.
|
![]() |
xcelentattitude:and you didn't come back |
![]() |
solve this differential equation using frobenius method
|
![]() |
[color=#990000][/color]
Juliusmalema:Leading through xenophobia ni? |
![]() |
Pls I want to venture into forex trading. I need someone who can be giving me trade signals. I'll pay for such services.
|
![]() |
Hmmm, nawa. Thank God
|
![]() |
chigoziri2403:one love bro, i agree with you on this 4 Likes |
![]() |
Mtcheeew
|
![]() |
Here is the question. Use error function to integrate this
|
![]() |
i have sure fixed correct score games, i only need serious minded people, my game starts by 5pm, am dropping it here so you can see for yourself, if you want to make money then play it, after winning then inbox me
|
![]() |
Reference: facebook/barry ben Lalasticlala |
![]() |
Lastly
|
![]() |
Continued
|
![]() |
Sorry for the delay
|
![]() |
Continue
|
![]() |
Continue below
|
![]() |
Please view below
1 Like |
![]() |
bigdot1759:dude, iPhone 7 processor is totally different from mtk processor, apple fusion is a more powerful processor when compared to the helio p and x processors. the more powerful the processor the more powerful the camera. 3 Likes |
![]() |
Galaxy s5, iphone 5s or lg g4. All uk used. This is my expert suggestion
1 Like 1 Share |
![]() |
guys shannara chronicles too is top notch
|
![]() |
fztvseries has a better video quality. Way better than o2tvseries
|
![]() |
Game of thrones s7 ep 6 leaked before release date(sunday) and watch
|
(1) (2) (of 2 pages)
(Go Up)
Sections: How To . 46 Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or s on Nairaland. |