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Rank in order, from highest to lowest, the temperatures T1=0 degrees K T2=0 degrees C, and T3=0 degrees F .
The order isn't T3, T2, T1.
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- 17. When a pizza comes out of the oven, it has a temperature of 200 °C. This temperature slowly cools down to room temperature, which is 20 °C. At 5:30, the temperature of the pizza is 39.3 °C, at 5:35, it is only 26.3 °C. The temperature of the pizza as a function of time t can be modelled by a function of the form Ta bt +c, where T is the temperature of the pizza (in °C), t is the time in minutes starting from 5:30 and a, b and c are positive constants (and b > 1). Note that we do not measure time from the moment the pizza comes out of the oven: that would complicate the calculations unnecessarily. a. Find the value of the constant c. (Hint: consider the temperature evolution of the pizza in the long term.) b. Find the value of the constant a. (Hint: consider the situation at t = 0.) c. At what time did the pizza get out of the oven?A copper pipe in a house that carries hot water is installed at 22 °C at a length of 16 m. The final temperature of the pipe is 61°C when the hot water is flowing through it. What is the change in length of the pipe, to three decimal places expressed in m?. The hottest temperature on a planet was 864°F recorded on Venus by the Soviet Venera probe and the U.S. Pioneer probe. The coldest place in the solar system is Pluto where the temperature is estimated at 1360.0°F. Calculate each of these temperatures in degrees Celsius.
- ´What's your normal body temperature? It may not be 98.6 °F, the often-quoted average that was determined in the nineteenth cen- tury. A more recent study has reported an average temperature of 98.2 °F. What is the difference between these averages, expressed in Celsius degrees? 4.What would be the temperature of 40.0 g of 22°C water mixed with 60.0 g of 80°C water? Answer in degrees Celsius. Here's the logical pathway to find the answer: The cold water absorbs heat according to Q1 = 40*4.186*(T-22). The hot water loses heat according to Q2 = 60*4.186*(80-T). Q1 must equal Q2, so solve for T, the equilibrium temperature.10g +5 6. A cake is removed from an oven at 320° F and cools to 130° F after 28 min in a room at 77⁰ F. How long after it is removed from the oven will it cool to 86° F? Use Newton's Law of -kt Cooling: T(t) = Tm+ (To-Tm) e where T(t) is the temperature of an object (with initial temperature To) t minutes after it is placed in a medium with temperature Tm.
- A 900 g copper rod at 20 degrees celcius has a length of 1.0000 m. The thermal expansion coefficient of copper is 17 x 10^-6 degrees celcius -1. The specific heat capacity is 0.385 kJ/kg degrees celcius. Question A: The copper is heated to 400 degrees celcius. What is the new length? Give the answer in meters and with 4 digits of precision after the decimal. Question B: The hot copper is then quenched by dunking the entire rod in a bucket with 10 kg of water at 20 degrees celcius. The specific heat capaciy of water is 4.18 kJ/kg degrees celcius. If none of the water turns to steam what is the equilibrium temp of the copper rod and water? Please give the answer in degrees celcius Question C: You measure the equilbrium temp and find that it is 24 degrees celcius. If the latent heat of vaporization of water is 2,260 kJ/kg, what mass of water turned to steam? Answer in gramsThe temperature of human body is 98.4 degree F. Calculate the temperature in degree C and in Kelvin.On a nice winter day at the South Pole, the temperature rises to −33°F. What is the approximate temperature in degrees Celsius? °C
- Q5: A hot-air balloon has a volume of 1100 m³. The density of air at 20 °C is 1.205 kg/m?. The density of hot air inside the balloon at a temperature of 100 °C is 0.946 kg/m. How much weight can the hot-air balloon lift (including the ?balloon itself) 9650 N O 5495 N O 2795 N O 5590 N O 2975 N OA person taking a reading of the temperature in a freezer in Celsius makes two mistakes: first omitting the negative sign and then thinking the temperature is Fahrenheit. That is, the person reads -x°C as X°F. Oddly enough, the result is the correct Fahrenheit temperature. What is the original Celsius reading? Round your answer to three significant figures. °CQ5: A hot-air balloon has a volume of 1100 m3. The density of air at 20 °C is 1.205 kg/m. The density of hot air inside the balloon at a temperature of 100 °C is 0.946 kg/m³. How much weight can the hot-air balloon lift ?(including the balloon itself) 2795 N O 5590 N O 9650 N O 5495 N O 2975 N O