Temperature affects the volume, not the weight. It becomes more dense at colder temp, less dense at higher temp, but the weight remains the same until such time as some of the water starts evaporating.Originally Posted by Marmoot
For whom the bell tolls
Temperature affects the volume, not the weight. It becomes more dense at colder temp, less dense at higher temp, but the weight remains the same until such time as some of the water starts evaporating.
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
I'ma get medieval on your ass!
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Hardcore Biker
none of the above, the mass will not change
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Rider in training
That's a toughy
First a few assumptions. The scales will display the correct weight at all altitudes.
Secondly the weight is measured relatively to the surface of the earth.
As you go up gravity will reduce, and so will weight.
As you go down towards the centre of the earth, away from the surface, and assuming you don't go past the centre of the earth, I would expect the weight to reduce. This is because gravity should reduce as the body of earth increases above you (and hence the gravity pulling you towards the surface should increase, until you reach the centre of the earth where the gravitational field will be balanced out).
So my guess is (b).
Forum whore
Sorry, need to clarify.
Temperature does not affect mass.
But temperature affect the equipment measuring the mass (spring rate of the scale, internal friction within the scale mechanisms, etc).
Unless you have an ideal scale. But there is no such thing as ideal scale, and the problem did not stipulate this.
I would prefer the added weight in the deep mine due to the gold, though.
Obviously, you're an entrepreneur and I'm a researcher. Unfortunately this means given the same amount of work, you'll be richer.
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Flat Out Biker
Where do you think gravity is coming from... the earths surface or the centre of the earth ?
I as un uneducated guesser go with (d) at this point
For whom the bell tolls
The Moon... DUH!!!
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
Forum whore
Gravitons.
Rider in training
Gravity comes from everything with mass. You have a gravitational field - it's just very small.Where do you think gravity is coming from... the earths surface or the centre of the earth ?
I as un uneducated guesser go with (d) at this point
Initially at the earth's surface all of the earth's mass is below you, so the only gravitational field that exists is pulling you down.
As you go below the earth's surface some of the earth's mass is now "above" your head. So now there is a gravitational mass "below" you pulling you down, and a mass above your head pulling you up.
The net effect is that as you travel towards the earth's centre gravity should steadily reduce to zero.
At the earth's centre you have half the earth below you and half above you. They both exert an equal but office force on you, which cancel each other out.
That's my thoughts.
One hell of a ride.
This is not a mass debate.
Psyclepath
Er, in fact no, we learnt to use the equipment by taking measurements on every floor of the Physics building in Newcastle.
Only a homo puts an engine back together WITHOUT making it go faster.
One hell of a ride.
The Shearer Scale. Belta.
$1,101,806
Its a perfect set of scales...reads constant irrespective of temp or alt or atmospheric pressure.
Its not a complicated question...its relatively simple and logical.
To dispell drink or evaporation...the 10 kg mass of water could be 10 kg of gold or pebbles from birdlings flat or used traffic infringment notice books from the Police archives....
Psyclepath
Would've been the Keegan scale in them days BD...
Only a homo puts an engine back together WITHOUT making it go faster.
111000101000100010011110
ahh, in that case, we must take into account the density of the mass and its bouyancy at different air pressures/ different altitudes, it may even weigh the most on the mountain because of this
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