PROBLEMS & EXERCISES 1. What is the Fahrenheit temperature of a person with a 39.0C fever? 2. Frost damage to most plants occurs at temperatures of 28.0F or lower. What is this temperature on the Kelvin scale? 3. To conserve energy, room temperatures are kept at 68.0F in the winter and 78.0F in the summer. What are these temperatures on the Celsius scale? 4. A tungsten light bulb filament may operate at 2900 K. What is its Fahrenheit temperature? What is this on the Celsius scale? 5. The surface temperature of the Sun is about 5750 K. What is this temperature on the Fahrenheit scale? 6. One of the hottest temperatures ever recorded on the surface of Earth was 134F in Death Valley, CA. What is this temperature in Celsius degrees? What is this temperature in Kelvin? 7. (a) Suppose a cold front blows into your locale and drops the temperature by 40.0 Fahrenheit degrees. How many degrees Celsius does the temperature decrease when there is a 40.0F decrease in temperature? (b) Show that any change in temperature in Fahrenheit degrees is nine-fifths the change in Celsius degrees. 8. (a) At what temperature do the Fahrenheit and Celsius scales have the same numerical value? (b) At what temperature do the Fahrenheit and Kelvin scales have the same numerical value?