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center
In physics, the center of mass of a distribution of mass in space (sometimes referred to as the balance point) is the unique point where the weighted relative position of the distributed mass sums to zero. This is the point to which a force may be applied to cause a linear acceleration without an angular acceleration. Calculations in mechanics are often simplified when formulated with respect to the center of mass. It is a hypothetical point where the entire mass of an object may be assumed to be concentrated to visualise its motion. In other words, the center of mass is the particle equivalent of a given object for application of Newton's laws of motion.
In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes the case for hollow or open-shaped objects, such as a horseshoe. In the case of a distribution of separate bodies, such as the planets of the Solar System, the center of mass may not correspond to the position of any individual member of the system.
The center of mass is a useful reference point for calculations in mechanics that involve masses distributed in space, such as the linear and angular momentum of planetary bodies and rigid body dynamics. In orbital mechanics, the equations of motion of planets are formulated as point masses located at the centers of mass. The center of mass frame is an inertial frame in which the center of mass of a system is at rest with respect to the origin of the coordinate system.
Hello all!
Captains bed with 8 drawers (4 on each side) and center storage (accessible from each side).
Great shape, and very sturdy. Easy to assemble too. 8 bolts is it! (supplied).
Area to place mattress on is 60.5w X 81L.
Will need to pick up in Aumsville Or.
Thank you for looking...
Have a beautiful T/C 10/22 with a Leupold VX Freedom rimfire scope 2-7x33 for sale. It does have a factory threaded fluted barrel. Rifle is in excellent condition.
I have a M&p shield performance center pistol for sale. It’s a 40 cal but also have a 40/9 conversion barrel. So you can shoot 40 or 9 through it with a swap of barrel and mag. Apex trigger with a Wetwerks custom slide.
Nothing wrong with it, I just prefer to carry Arex.
6 shot 357 magnum, has some speed loaders for it and I formed a iwb holster for it. Shoots great, amazing trigger, tritium front sight. I also have an older set of full size grips I can though in for a price.
Only selling to fund car projects
I have a brand new in box Smith and Wesson 986 snub revolver in 9mm. Perfect for carry or home defense!
$1100 shipped to your FFL. Cheapest place I can find online has it for $1219 (not including taxes, shipping, etc.)
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I have a 3-9 rifle scope and mount for a white mountain carbine.
Sell it for $150 or trade it for a rear sight for the white mountain carbine.
It is on a 50 caliber barrel.
Trade the barrel with mounted v scope for a 54 caliber barrel for the white mountain carbine.
S&W 1911 Performance Center 3" (.45)
Perfect little concealable 1911. It’s basically new - purchased from high line firearms a recently… has only shot 50 rounds… fun little gun to shoot. Impulse buy…. Listing for 250 under what I bought it for…
Great condition - really great piece - but my...
Letting go of some stuff to fund another project. Need to sell by Saturday morning.
Transfer at Mancave Centralia (buyer pays)
Performance Center .44 Mag with scope
Less than 50 down the pipe super accurate, like new with case
No trades
$1300
For sale: S&W Model 986 Performance Center 9mm Revolver 7 shot with moon clips with box.
I have only shot 14 rounds (two moon clips) through this revolver. It is like new with no wear marks.
Good Morning
I have a Smith and Wesson Performance Center 1911 that I would like to part with as I am beginning to pursue Night vision equipment.
The Gun has around 400 rounds fired through it and will come with 2 factory mags 2 Wilson combat mags and 1 Wilson combat 10-round mag.
I will also...
For sale is a clean S&W M&P9 Shield Performance Center 9mm with two magazines and two holsters. It is the first generation rather than the second generation model, but it does have the Performance center premium features - ported barrel and Hi Viz sights.
I believe this gun has a low round...
For sale is a wonderful Lefthand T/C Renegade .54 Cal
include in the the sale will be 5lbs of powder (FFG) and round balls plus patches and Maxi-balls
A couple different ram rods also.
$675
Bought this and instantly had buyers remorse. It wasn't the model I wanted and I was not able to return it. So....my loss is your gain as the saying goes. This is the M&P 9 Shield. It is NOT the Plus model if that is something that is important to you. As the Performance Center version it has...