Algebra

posted by .

Tire pressure is directly proportional to temp on a temp scale where zero degrees is absolute zero. given that temp in degrees celcius and degrees Fahrenheit are related by the formula F=9/5C +32 and absolute zero is -273.15C, by what % does tire pressure decrease when the temp drops from 80F to 40F? express answer in nearest whole #

  • Algebra -

    converting Kelvin to Rankine, absolute zero is -459.67°F

    so, if the temperature drops by 40°F from 80°F, that is a

    40/(459.67+80) = .0741 = 7.41% drop

    That means a corresponding drop in pressure.

  • Algebra -

    I aggre but you made a mistake

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science, absolute zero

    what is absolute zero? if 0 kelvin is the lowest temperature we can ever get, then does it mean that -273 degree Celsius is the lowest temperature we can reach?
  2. physics

    What would be the final temp when 100 kg of 0 degrees Celcius cold water is mixed with 60 kg of 35 degrees warm water?
  3. Chemistry

    I don't understand this: For the temperature vs time graph for heat and changes of state. The graph starts at -2.1 degrees C The heat of fusion is at 2.0 degrees C The heat of vaporization is on 101.0 degrees C. The graph ends at 103.0 …
  4. Calculus

    The celcius scale is devised so that 0 degrees celcius is the freezing point of water ( at 1 atmosphere of pressure) and 100 degrees celcius is the boiling point of water ( at 1 atmosphere of pressure) . If you are more familiar with …
  5. math

    The temperature in degrees Fahrenheit is equal to 32 more than 9/5 times the temperature in degrees Celsius. One day the high temp. was 95 degrees Fahrenheit. What was the high temp. in degrees celsius?
  6. Statistics

    During September, the average temp of laurel lake is 64.2 degrees. the standard deviation is 3.2 degrees. Assume the variable is normally distributed. For the randomly selected day, find the probability that the temp will be a. above …
  7. Math 4

    Temp. In degrees is 19 degrees Fahrenheit. A blizzard moved in and brought lots of snow and lowered temp. By 27 degrees Fahrenheit, what was the final temp. In Fahrenheit during the blizzard?
  8. Chemistry

    Find the enthalpy of combustion of magnesium using Hess' law given the following data (assume that exactly 100.0 mL of HCl was used in each trial and that HCl is in excess) Magnesium/HCl reaction: Grams of Mg= 0.244g Initial temp= …
  9. math

    One day at 3:00 am the temp was -13 degrees f in Kodiak Alaska. At 10:00 am the temp was 22 degrees f. What was the average change in temp per hour?
  10. math

    the high temp today was 62 degrees. when nighttime comes, the temp will drop 40 degrees. by 4 am the temp will drop an additional 40 degrees. what is the temp at 4 am?

More Similar Questions