You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
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.
Allright guys i have been in my garage and i have a bucket of the plumb centre fittings brand new still in packs
555500 Center end-feed straight coupling 15 mm x50
555501 Center end-feed straight coupling 22 mm x25
555510 Center end-feed elbow 90 deg 15 mm x150
555511 Center end-feed elbow 90...
smtplumbing
Thread
bucket
center
endfeed
fittings
for sale
pack
plumb
sale
I went to parts center today and cant believe how many people were in there. People were even sitting in the chairs provided, then i realised they dont employ any staff. 1 guy milling around laughing and joking behind the jump. I havent got time to sit around waiting to be served. Anyone else...
I went into Plumb Center late afternoon yesterday desperate for 3 rads after PTS let me down ( I ordered them a week previous and when I went in they hadn't even ordered them, I have a wasted day today now with no work). I tried to order some more at P C but they couldn't find my details and had...
Need a bit of advice.
I just moved into a house and yesterday I noticed that the shower head and valve are not centered. My first thought is that the timber is running in the center and they couldn't center the shower pipes for the head and valve.
1- Do you think that the above was the...
galego
Thread
center
head
issue
probably
shower
shower head
valve
Work is going ok been at this company now for 5 or 6 months and work is varied!
Could be putting a boiler in one week, then on maintenance the next. Anything from replacing syphons, filling valves, washing machine valves, showers, repairing leaks. Then there's the other stuff doing appliance...
Wocester bosch highflow 400 wont start
Got this boiler floor standing Worcester that im unfamiliar with. The boiler won't fire up at all when calling for heating or hot water. Its making alot of noise like air in the system, and the pump is running and is hot to touch. There was no pressure...
Hello all
Please let me know your thoughts on the below idea!
I am thinking of starting a call center (hot line) service for plumbers and trades that don't have an office and are too busy to answer phone calls all day. I have worked in Gas call centers for a number of years and now after...
i see all smart meter installations in the uk,both gas & electric, have been stopped due to serious health & medical conditions
Corporate criminality UK stops all smart meter installations
looks like those smart meters are not as smart as was first thought :sad:
I want to replace a radiator valve in my house and want to replace like for like. The valve has Center Brand or Brand Center wrote in a circle on the top. I dont seem to be able to source this make of valve.
Does anyone know of this make?
thanks.
Evening all. Had a bit of a head scratcher today. called out to a job and the boiler and pump were running when the programmer was off. It was a satchwell/sunvic wiring center, the one with the circuit board in the metal box. I disconnected the wires at the programmer, room stat and cylinder...
Latest news from ********* and we are starting a small trial with
Williams & Co (Trade Only Plumbing & Heating)
They have 23 Branches in the South
These are the first two branches and our plan is to see if Portsmouth and Worthing can retail the PORSADRILL brand.
Installation...
365drills
Thread
center
color
diamond
drills
news
porsadrill
south
table
tile
tile drills
Hi,
this is my first post in this forum and I apologize if my explanation is not highly technical.
I recently moved in a property with:
No Gas, electricity only.
2 bedrooms.
1 bathroom (shower).
1 en-suite (bath).
Economy 7.
The existing boiler, a pulsacoil 2000, wasn't working and after...
rdpi
Thread
align
center
class
cylinder
radiator
radiators
verdana
hia people, i have just been to look at a job for a sports center to upgrade the male and female toilets, can anyone please tell me where is the best place to go for this type of gear, really struggling to find anywhere that dose the vanity units, any help appreciated ..... thank you :)
Hi' i'm struggling to get hold of a pair of replacement male-female brass reducers to use on some old taps. They are 1" to 1/2" (plumbing size NOT actual size). The inner thread (1/2") is 14TPI, the outer (1") is about 25TPI. The only ones I can find have 11tpi on the 1" thread.
They old ones...
alan
Thread
brass
center
reducer
reducers
replacement
should
thread
I bought a compression (threaded) Type A drain off and female 15mm coupler from my local Plumb Center. The thread on the drain off is longer than the female coupler fitting so some of the thread shows when screwed fully on.
Is this normal?
M.Joshi
Thread
15mm
center
compression
coupler
drain
female
plumb
thread
type a
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.