[ARCHIVED THREAD] - math question (Page 1 of 2)
Posted: 9/15/2014 12:09:48 PM EDT
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the temperature of something is 20 degrees F, and it get twice as hot.
Now what is the temperature of the something? |
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"twice as hot" or "twice as much thermal energy"? There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Not to mention, if we include the possibility of latent heat, we would also need to know how much of the substance is present. |
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...and then rounding to the nearest tenth. Quoted:
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499.7 deg F Based on converting to Kelvin, which starts at absolute zero, and then doubling and converting back. ...and then rounding to the nearest tenth. I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? |
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There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Quoted:
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"twice as hot" or "twice as much thermal energy"? There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Assuming there's no phase change, no pressure change, and that Cp is constant with respect to temperature (which is not true of any material that actually exists), you're looking at 499*F. But it's not a very useful question to ask. |
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I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? Quoted:
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499.7 deg F Based on converting to Kelvin, which starts at absolute zero, and then doubling and converting back. ...and then rounding to the nearest tenth. I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? No. You should look it up. |
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If the local convenience store sells 5 pounds of ice for twodollars and the self serve ice kiosk advertizes "twice the ice for half theprice” how much ice do I get and at what price if I patronize the kiosk asopposed to the convenience store? I want the ice that is twice as cold. |
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No. You should look it up. Quoted:
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499.7 deg F Based on converting to Kelvin, which starts at absolute zero, and then doubling and converting back. ...and then rounding to the nearest tenth. I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? No. You should look it up. I have been doing wrong :-( the magnitude of the degree Celsius is exactly equal to that of the kelvin |
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If the local convenience store sells 5 pounds of ice for twodollars and the self serve ice kiosk advertizes "twice the ice for half theprice” how much ice do I get and at what price if I patronize the kiosk asopposed to the convenience store? cannot compute. |
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Quoted: the temperature of something is 20 degrees F, and it get twice as hot. Now what is the temperature of the something? I'm glad I finished my Physics classes. I got tired of calculating theoretical questions from guys that couldn't match their socks.
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There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Not to mention, if we include the possibility of latent heat, we would also need to know how much of the substance is present. Quoted:
Quoted:
"twice as hot" or "twice as much thermal energy"? There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Not to mention, if we include the possibility of latent heat, we would also need to know how much of the substance is present. Perhaps we could try an analogy; substituting girls for the object in question, and the 1-10 scale for the Farenheit scale. In that case, what is "twice as hot"? |
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87
I can't believe I'm first second with the standard ARFcom science answer. Since I blew that, I'll add some useful information. 0C = 273.16K 0F = 459.688R I'd like to see one of our students derive the equation for converting between degees C and F. Instead of looking on line or in a text book. It'll make you stronger. |
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I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? Quoted:
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499.7 deg F Based on converting to Kelvin, which starts at absolute zero, and then doubling and converting back. ...and then rounding to the nearest tenth. I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? Celsius. |
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Quoted: Celsius. Quoted: Quoted: Quoted: Quoted: 499.7 deg F Based on converting to Kelvin, which starts at absolute zero, and then doubling and converting back. ...and then rounding to the nearest tenth. I am not looking it up, but Kelvin starts at absolute zero, and incements in the same as Fahrenheit (It is Fahrenheit, just starts at absolute) amiright? Celsius. |
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How about I interrupt the nerdfest for just a second with something that's actually useful and fun: What is twice as hot as this? http://i58.tinypic.com/2n63ix.jpg Guilty. Pointy elbows. |
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Quoted: I want the ice that is twice as cold. Quoted: Quoted: If the local convenience store sells 5 pounds of ice for twodollars and the self serve ice kiosk advertizes "twice the ice for half theprice” how much ice do I get and at what price if I patronize the kiosk asopposed to the convenience store? I want the ice that is twice as cold. |
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Quoted:
Perhaps we could try an analogy; substituting girls for the object in question, and the 1-10 scale for the Farenheit scale. In that case, what is "twice as hot"? Quoted:
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"twice as hot" or "twice as much thermal energy"? There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Not to mention, if we include the possibility of latent heat, we would also need to know how much of the substance is present. Perhaps we could try an analogy; substituting girls for the object in question, and the 1-10 scale for the Farenheit scale. In that case, what is "twice as hot"? It depends whether your 1-10 scale is percentage, in which case the answer lies along the bell curve, and would require an integral for solution. The bounds being the hottest person alive, and the ugliest. Or if your 1-10 scale is logarithmic, like the Richter scale (though perhaps not at that significant of an upward slope). Say, a 3 is twice as hot as a 2, or half as hot as a 4. Every integer increment doubles the absolute hotness of the subject. And is the 10 scale a hard cap? Is there an absute maximum level of hotness that can be achieved? And, given that human DNA is very unlikely to produce duplicates within the life span of the Earth, unless we somehow migrate to other planets, that means there will be a method by which we could quantify the hottest person to ever live. Moreover, because the DNA code for that person would be able to be reverse-decoded based on the maximum possible hotness, if human cloning ever reached a suitable level of technology, we could clone that person specifically to produce a race of the absolute hottest women. It would be impossible to ever find anyone hotter. Which, of course, means that at such a point, you obviously couldn't double their hotness. |
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It depends whether your 1-10 scale is percentage, in which case the answer lies along the bell curve, and would require an integral for solution. The bounds being the hottest person alive, and the ugliest. Quoted:
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"twice as hot" or "twice as much thermal energy"? There would be no way of telling if he were asking "twice as much thermal energy" since we do not know what substance the thing is or what atmospheric pressure it is at. Not to mention, if we include the possibility of latent heat, we would also need to know how much of the substance is present. Perhaps we could try an analogy; substituting girls for the object in question, and the 1-10 scale for the Farenheit scale. In that case, what is "twice as hot"? It depends whether your 1-10 scale is percentage, in which case the answer lies along the bell curve, and would require an integral for solution. The bounds being the hottest person alive, and the ugliest. That seems arbitrary. Certainly, you could take the ugliest or prettiest person alive, and imagine the ways that they, theoretically, could be uglier or hotter. Also, why not include historical hotties and uggos? |
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87 I can't believe I'm first second with the standard ARFcom science answer. Since I blew that, I'll add some useful information. 0C = 273.16K 0F = 459.688R I'd like to see one of our students derive the equation for converting between degees C and F. Instead of looking on line or in a text book. It'll make you stronger. 32F=0C 212F=100C 212-32=180 100-0=100 There are 180F for every 100C 100/180=5/9 C= (5/9)F-32 F= (9/5)C+32 Hopefully this is right, I haven't looked up the answer before posting. |
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Quoted: Quoted: Quoted: the temperature of something is 20 degrees F, and it get twice as hot. Now what is the temperature of the something? I believe what you are looking for is the basic formula where: X is blind the whole time, Y is dead, and the only constant is the number 87. |
