Simple temperature ratio question

  • Thread starter Thread starter bpaterni
  • Start date Start date
  • Tags Tags
    Ratio Temperature
AI Thread Summary
The discussion revolves around calculating the melting temperatures of gold and silver based on their given ratio in Celsius and Kelvin. The ratio of melting temperatures is 1.10614 for Celsius and 1.08265 for Kelvin. Participants suggest using the formula Tkelvin = Tc + 273.15 to convert Celsius to Kelvin. A mathematical approach involving substitution is recommended to solve the equations. The conversation highlights the challenge of the problem while emphasizing the need for a systematic method to find the temperatures.
bpaterni
Messages
8
Reaction score
0
1. The ratio of the melting temperature of gold and of silver is 1.10614, if both temperatures are measured using the Celsius temperature scale, and 1.08265 using the Kelvin scale. What are the temperatures?



2. I'm guessing we're supposed to use this to find the answer: Tkelvin = Tc + 273.15



3. This is probably more of a math question, but I'm still baffled as for how to figure it out
 
Physics news on Phys.org
So,
gold / silver = 1.10614
(gold + 273 )/ (silver + 273) = 1.08265

A simple substitution should give you answer
 
Wow, thanks! I'm retarded... :)
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top