At a certain station, the mean of the average temperature is 25°C and mean of the maximum daily temperature is 46°C . What is the airport reference temperature ?
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- Kelon Mus has another plan to build a mining factory at the surface of Edog-1. This mining factory will emit a massive amount of saturated air parcels which have the same temperature as the surrounding environment (40°C). Describe the vertical movement of the emitted air parcel, and possible changes in regional climate patterns(If the air temperature on the ground is 25˚C, and the dry adiabatic lapse rate is 10˚C, and the environmental lapse rate is 5˚C. Give the temperature of the atmosphere after 1 km above the groundIf a 136.51 g Al rod (c=0.900 J/g°C) is at 100.0°C and placed into 250.0 g of water at 21.8°C, what is the temperature of the system (rod+water) at equilibrium assuming no losses to the surrounding?
- In order to compute the airport reference temperature and the standard temperature with respect to elevation, the monthly mean of average daily temperature and the monthly mean of the maximum daily temperature of the hottest month of the year is found to be 31° C and 42.5° C respectively. The airport reference temperature is:3. A line was measured with a 50-m tape which was found to be 532.28 m. the tape is known to be of standard length at 20o C with coefficient of thermal expansion of 0.0000116 m/o C. If the corrected length of the measured line is 532.37 m. long, at what temperature was the measurement made?A steel tape is 30 meters long at 20 degree Celsius with a pull of 60 N. A rectangular lot is measured using this tape. The sides are recorded as 145 meteres and 113 meters. The average temperature of the tape during measurement is 29.4 degree Celsius with a pull of 60 N.
- 4.2. What is the normal range of the air relative humidity for residential premises? Choose the correct answer:1. 20-40%;2. 20-50%;3. 30-60%;4. 35-70%;5. 40-80%;Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm2. Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. R = 0.287 kJ/kg. K, CP 1.005KJ/kg. K.An electrical current flows through a long bar, generating thermal energy at a rate uniform volumetric of q = 2 × 105 W/m 3. The bar is concentric with a hollow ceramic cylinder, creating an air-filled space between the two. If the external surface temperature cannot exceed 40 °C, what is the minimum speed that the ambient air should be blown? the neighborhood meets at 25 °C and the emissivity of the ceramic is 0.8. If the bar has an emissivity of 0.2, what is the bar surface temperature?
- Calculate the thermal resistance due to convection for the following situations: a. warm water with h = 200 W/m2 K b. warm air with h = 10 W/m2 K c. warm moving air (windy situation) h = 30 W/m2 Kasap pls 10 mins The volume of atmospheric water is 12669km3. The evapotranspiration from land is 7200 km3 per month and from ocean is 505000 km3 per year. Estimate the residence time of water molecules in the atmosphere in a month.A 50 m length of tape is of standard length at temperature of 50.76°C. What would be the error in the length of tape at a temp. of 68°C. Use coefficient of thermal expansion equal to 0.0000116m/°C. a. 0.01 b. 0.02 c. 0.03 d. 0.04