it is exactly protoplanetary disk.
YES it does. Planetary motions (orbits) are partly the consequences of the Law of Conservation of Angular Momentum. Simply, the motion of the original "proplyd" or protoplanetary disk, is retained by the planets formed from it. While "inertia" is often thought of as the tendency of bodies at rest to remain at rest, it can also refer to the tendency of bodies in motion to remain moving in a straight line unless acted upon by a force. The gravitational force between the Sun and a planet is such a force. The combination of inertia and gravity causes the planet to orbit the Sun. The planets orbits are ellipses (Kepler's First Law), so the speed of the planet varies as it moves around the Sun. Here again conservation of angular momentum is involved. In fact, Kepler's Second Law is a consequence of the conservation of angular momentum.
Astronomers think that the Sun and all the planets formed from a "proplyd," or protoplanetary disk. Over time, gravity caused materials in close orbit to accrete, or bunch up. Those embryonic planets in close orbits had relatively smaller "supplies" to build with (on the other hand, a greater proportion of those supplies were metals). Something of a trade-off was present between the size of the orbit (more space for the stuff to be in) and the richness of the orbital track (with the Sun sucking in the vast majority of the material, the inner orbits were thicker with stuff, offsetting the fact that there was less space for the stuff to be.) Apparently the optimal, or close to it, position was occupied by what was to become Jupiter, which collected some 318 times the material the Earth got, although it was mostly hydrogen and helium, whereas we got a lot of iron. Saturn was the next in line with 95 times Earth's mass. Of course, where the planets are now is not necessarily where they formed, so the prime collecting field of the early Solar System could have been inside or outside Jupiter's orbit.
Opinions on the matterYes I do think Lil Wayne was involved in killing people during his life time. When he was younger he was in gangs and I think during that time he had killed 2 to 3 people. But this is my opinion and I may be wrong.Whether Lil Wayne has or has not actually killed someone I am not sure. However, he does have a couple tattoos under his eyes that form teardrops. If you didn't know, these teardrop-tattoos are a gang affiliation symbol that are marked for every person you kill. One teardrop, killed one person. He does have a couple under his eyes, so I assume when he has killed a couple people before.Lil Wayne did not kill anybody, if he did he would be in jail. Most people think that he killed people because of his bloody tear drops, but if you're totally obsessed with Weezy like I am you would know that he said in an interview that those represent the people in his life that are close to him that died. There are three tear drops: one is for his grandmother that died, one is for his step father that died Reginald (Rabbit) Carter, and the last one was for one of his friends that died in Hurricane Katrina.People are just assuming Lil Wayne has killed someone because he is a black rapper in America. But no he never did.