If it's zero degrees outside today and it's supposed to be twice as cold tomorrow, how cold is it going to be?

The phrase "twice as cold" is meaningless unless you use an absolute temperature scale, in which case I assume you mean "half as warm". Zero degrees Fahrenheit is equal to 460 degrees Rankine (absolute scale). Half of 460 is 230. The real answer is that your question is meaningless.

1. What UNITS are those degrees? Fahrenheit or Celsius? 2. What is meant by "twice as cold"? Do you mean half the absolute temperature? Or do you mean twice as much heat flux is leaving your body? Hopefully you don't mean half the absolute temperature, where 0 Celsius is 273.15 K, and thus half the absolute temperature is 136.575 K, which is -136.575 C. THAT IS COLD ENOUGH TO FREEZE YOUR SKIN OFF. Most likely, you mean "twice as much heat flux", because you cannot feel temperature. You can only feel heat flux. This is why you can touch a wooden box and a metal fork and think the metal fork is colder, even though they are both the same temperature. Grossly assuming that the modes of heat transfer off your skin are linear modes of heat transfer, this means that, heat flow off your body is given by the equation: Q_dot = (Tbody - T)/R where R is an assumed constant value called thermal resistance. So: Q_dot_today = (Tbody - Ttoday)/R Q_dot_tomorrow = (Tbody - Ttomorrow)/R Condition of the problem: Q_dot_tomorrow = 2*Q_dot_today Thus: (Tbody - Ttomorrow)/R = 2*(Tbody - Ttoday)/R Cancel R: Tbody - Ttomorrow = 2*(Tbody - Ttoday) Solve for Ttomorrow: Ttomorrow = Tbody - 2*(Tbody - Ttoday) Assuming you meant 0 Celsius, our data is: Tbody:=37 Celsius <<< standard human body temperature; Ttoday:=0 Celsius; Result: Ttomorrow = -37 Celsius

As Mysticsp says, the phrase 'twice as cold' is meaningless. If you mean half the temperature, then it becomes necessary to refer to the absolute temperature scale with an absolute zero of temperature set at -273 degrees Celsius. (Nothing can be colder than this). On this scale 'half the temperature' would be -136.5 degrees Celsius. Pretty chilly!

0 degrees

Well 0 degrees farenheit is 255 kelvin. Half of 255 is 127.5... So it would be approximately -230 degrees farenheit.

Hmmmmm....-32 degrees?

-17

hm...colder than 0? never thought about that...there's probably a formula for that...

-32f

-35c