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Jodokast

join:2012-05-10
reply to Immer

Re: New thing I hate? Questing on Cross Realm

I hate, hate, HATE x-realm zones!

I have truely considered quitting and cancelling the game over it, I have even called Blizzard with my complaint and they told me this is how its going to be.

I have been griefed-trying to do pet battles, they attack me, by peeps from other servers, never someone from my own server, harrassed by trying to quest with my low level alts and 90's zipping around pretagging quest mobs or just plain ganking me

This has really tested my willingness to keep paying for something I hate, sometimes I wonder why am I paying Blizzard for a game that has taken out the fun of playing low levels or trying to do anything in a x-realm zone thats pvp



Immer
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join:2010-01-07
Evans, GA
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reply to cymraeg

ah... the question of where the lbs were being measured was posed to calculate the mass.

-a tonne of people QQ
-metric or 'merican?
-2200 lbs
-measured on earth or on mars?

the answer to the last question validates just how many people are involved in the QQ.

Because you "know" the mass, it is unchanging for you... but he's trying to guess the mass by knowing the reference point for the weight measurement.
--
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Immergruen (resto/boomie) on Nathrezim Server (US)
Agrende (discipline/holy); Esclavizado (blood/unholy)

Intelligence is no substitute for Character.



DarkLogix
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reply to DarkLogix

Also in Physics remember W=weight w=work

and w=mad (mass * acceleration * distance) but it can be broken into (mvd)/t or into (mdd)/tt simplified (md^2)/t^2 but mad is cooler, also an even simpler way is Fd

so Physics says work is mad.


cymraeg
Thread Killer
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join:2011-06-07
Dodge, NE
reply to Immer

i was speaking in terms of weight not mass, 2200 lbs is a metric tonne or 1k kilos, perhaps thats where the confusion lies



DarkLogix
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reply to cymraeg

said by cymraeg:

why are you caps ing weight and mass, i know the difference in the 2, i love it when people think that fat and muscle have different weights, takes me forever to explain the difference between mass and weight.

Now you're getting into density.

Muscle has greater density than fat, thus is more mass per cubic measurement than fat.

But if you're in zero g then your weight is zero but your mass isn't 9Just have some trouble measuring it because most measurements actually measure weight and then convert back to mass.


Immer
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reply to cymraeg

said by cymraeg:

i was speaking in terms of weight not mass, 2200 lbs is a metric tonne or 1k kilos, perhaps thats where the confusion lies

ah, there ya go. Kg measurement would have killed it. but then, we'd have missed out on all of this geekdom!


DarkLogix
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reply to cymraeg

said by cymraeg:

i was speaking in terms of weight not mass, 2200 lbs is a metric tonne or 1k kilos, perhaps thats where the confusion lies

ah kg a measurement of mass as opposed to newtons a measurement of weight.

where as lbs is a measurement of weight not mass. so 1k kilo is only equal to 2200lbs on earth.

cymraeg
Thread Killer
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Dodge, NE
reply to DarkLogix

its both, the density of muscle determines its mass at a specified weight same with fat.

muscle say has a density of .8 and fat .4 , so from this we can say 1 lb of both may have 3 grams of muscle and 15 grams of fat
--
Hen Wlad Fy Nhadau!
"What happened in here?" " Seems to have been a bit of a squabble." "They're all dead!" " More of a tif then."



DarkLogix
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There you go again mixing mass and weight.

Weight depends on g, mass doesn't.


cymraeg
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but the density of the 2 things determines its mass at a specified weight



DarkLogix
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reply to DarkLogix

Density is how tight some mass is packed into a physical space.

Density is related to volume mass isn't. and nether is weight.

To get density in there how much mass does 1 liter of fat have?


cymraeg
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multiply that volume times its density and you would have its mass, i dont follow what youre asking here.

and it would have to be cubic litre



DarkLogix
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reply to cymraeg

said by cymraeg:

but the density of the 2 things determines its mass at a specified weight

Nope, only if the mass of the objects are tightly packed, yes abstractly fat is less dense than muscle but density doesn't make mass, its mass in a given volume that makes density.

If you have a given weight of an object and know the planet you're on then you just divide by 9.81 (for earth) for the mass.

so 1N of fat is 101g of fat. because 1Newton divided by 9.81 and converted from kilo makes it so.


Immer
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/popcorn



DarkLogix
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reply to cymraeg

said by cymraeg:

multiply that volume times its density and you would have its mass, i dont follow what youre asking here.

and it would have to be cubic litre

a liter is a measure of volume so you don't have to put cubic.

cubic would be for if it were a cubic meter.

cymraeg
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Dodge, NE

hah litre, i meant metre, hands working faster than my brain again



DarkLogix
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Answer this question (it'll take some research)

If have an object that weighs 2200N on Pluto and I bring it to Earth what's it weight on Earth?



Nick D
Premium
join:2010-02-04
Orange, CA
reply to StumpMan

Hey here's something for you since we're on the topic of units (also not super relevant)

Car mileage. Measured in Miles/Gallons. But that's just because the numbers are nicer. What's more interesting from a day to day perspective is Gallons/Mile (so I know how much I'm being gouged when driving to work)

Gallons = unit of volume = length^3
Mile = unit of length

Therefore car mileage is length^3/length = length^2 = area

You can actually describe your car as getting a mileage of X acres (its a very small X)

source of this insight: http://what-if.xkcd.com/11/



DarkLogix
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However in the context of gas mileage gallons are used as a measure of energy.

So it'd be better to say miles per joule.



DarkLogix
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reply to cymraeg

You've reminded my why I like physics class.


cymraeg
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reply to DarkLogix

yes, just like your electric bill, youre actually buying joules per month.



Nick D
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join:2010-02-04
Orange, CA
reply to DarkLogix

said by DarkLogix:

However in the context of gas mileage gallons are used as a measure of energy.

So it'd be better to say miles per joule.

Well, kind of, in that a gallon of gasoline has a certain potential energy, and we're trying to measure how much useful output we got from that energy by distance traveled.

But once you start down that route, you can just start applying arbitrary units and eventually we're into furlongs/liter squared or some such nonsense.


DarkLogix
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reply to cymraeg

You going to answer my Pluto quiz before I go or should I just spill the beans as to what the weight would be on earth?


cymraeg
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reply to DarkLogix

haha you have me at a severe disadvantage, its been almost 20 yrs since university.



DarkLogix
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reply to Nick D

said by Nick D:

said by DarkLogix:

However in the context of gas mileage gallons are used as a measure of energy.

So it'd be better to say miles per joule.

Well, kind of, in that a gallon of gasoline has a certain potential energy, and we're trying to measure how much useful output we got from that energy by distance traveled.

But once you start down that route, you can just start applying arbitrary units and eventually we're into furlongs/liter squared or some such nonsense.

Well actually you'd have to say a gallon has X joules of energy but the car is only going to operate at Y efficiency so, but a gallon of 93oct has a greater energy density than 86oct.


DarkLogix
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reply to cymraeg

said by cymraeg:

haha you have me at a severe disadvantage, its been almost 20 yrs since university.

Well I'm about to leave for the gym so I'm going to give away the answer.

if the object weights 2200N on Pluto it'll weight 37,210N on earth, and has a mass of 3793kg.

cymraeg
Thread Killer
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Dodge, NE
reply to DarkLogix

said by DarkLogix:

Answer this question (it'll take some research)

If have an object that weighs 2200N on Pluto and I bring it to Earth what's it weight on Earth?

about 31.5kN
--
Hen Wlad Fy Nhadau!
"What happened in here?" " Seems to have been a bit of a squabble." "They're all dead!" " More of a tif then."


DarkLogix
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if you use
»wiki.answers.com/Q/What_is_the_g···of_Pluto

.58m/s^2 for g(Pluto) and 9.81 for g(Earth)
then w=mg
so

2200/.58*9.81=37,210.34N
as the significant digits are only at most 2 decimal places its safe to drop the trail off there.


cymraeg
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Dodge, NE

well i guess it was about 7% that of earths or after getting the actual math from unexplainable things web site ill cite it later its 1/15 or .07 which number you choose to use is up to you, anyway pluto is 1/455 the size of earth and 1/5.5 the mass so 5.5 x 5.5/ 455= .07
--
Hen Wlad Fy Nhadau!
"What happened in here?" " Seems to have been a bit of a squabble." "They're all dead!" " More of a tif then."



Jobbie
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