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Relative humidity usually is highest right before sunrise. Why does this occur?
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- On a winter day, the air temperature is −5°C, and the humidity is 0.001 kg/m3. (a) What is the relative humidity (in percent)? (b) When this air is brought inside a building, it is heated to 35°C. If the humidity isn't changed, what is the relative humidity (in percent) inside the building?On a summer day in Houston, the temperature is 20°C and the relative humidity is 74 percent. (a) What is the humidity? _________kg/m3(b) To what temperature could the air be cooled before condensation would start to take place? (That is, what is the dew point?)__________ °CConsider two identical buildings: one in Los Angeles, California, where the atmospheric pressure is 101 kPa and the other in Denver, Colorado, where the atmospheric pressure is 83 kPa. Both buildings are maintained at 21°C, and the infiltration rate for both buildings is 1.2 air changes per hour (ACH). That is, the entire air in the building is replaced completely by the outdoor air 1.2 times per hour on a day when the outdoor temperature at both locations is 10°C. Disregarding latent heat, determine the ratio of the heat losses by infiltration in the two cities.
- The wind-chill index is modeled by the function W = 13.12 + 0.6215T – 11.37v0.16 + 0.3965TV0.16 where T is the temperature (°C) and v is the wind speed (km/h). When T = -19°C and v = 39 km/h, by how much would you expect the apparent temperature W to drop if the actual temperature decreases by 1°C? (Round your answers to two decimal places.) °C What if the wind speed increases by 1 km/h? ㅇCQuestion 7 1 pts Using a sling psychrometer, you measure the air temperature to be 12°C and the wet-bulb temperature to be 8°C. What is the relative humidity? O 74% O 100% O 16% O 57% Question 8 1 pts Using a sling psychrometer, you measure the air temperature to be 12°C and the wet-bulb temperature to be 8°C. According to the chart in the Lab 8 background page, how humid does it feel? Dry (pleasant) O Sticky (unpleasant) O Muggy (gross) Hint of humidity (still comfortablejIf the average normal temperature decreases with altitude in the troposphere is 6.5 °C/km, calculate the approximate temperature at 6 km if the surface temperature is 16 °C. Lapse rate = 0.005645 degC/m
- Explain how hail forms? You need to understand that the middle part of a cumulonimbus cloud, where the air temperature is between -40° C and 0° C, there exists a combination of ice and supercooled liquid water droplets, which are cloud droplets that remain liquid even though the temperature is below the normal freezing point of liquid water. This should be part of your explanation. How large can hail get? Why are strong updrafts necessary to produce extremely large hail?If the insolation of the Sun shining on seawater is 8.7 × 10² W/m², what is the change in temperature of a 7.0 m² by 14.0 cm thick layer of seawater at the surface in 2.0 hr? (Assume the albedo of the seawater is 0.4, the specific heat of seawater is 0.92 cal/g °C, and the density of seawater is 1.03 g/cm³.) °C AT=Summers in Georgia are brutal. The statement: "It gets so hot and humid during the summer that the temperature makes it 100°F and the humidity is 100%." Is this statement correct? Why or why not?
- The temperature and humidity in the valley in the early afternoon were 29 °C and 30%, respectively. Later, dry winds sweeping across the valley carried away 4.0 grams of water vapor from each cubic meter of air. The temperature during at that time had increased to 32 °C. What was the humidity (in %) then? Humidity vs Temperature Table is below: (°C) (g/ur) 10 9 16 13 21 18 24 22 29 30 32 35 14.3 16.7 12.3 O 16.0 O None of theseOn a winter day when the air temperature is 0 °C, the relative humidity is 50% . Outside air comes inside and is heated to a room temperature of 20 °C . What is the relative humidity of the air inside the room. (Does this problem show why inside air is so dry in winter?)Comparing 1 m3 of air with 100% relative humidity at 0°C and 1 m3 of the air with 100% relative humidity at 30°C, choose the correct statement. Group of answer choices They both have the same amount of water. They both have the same absolute humidity. The air at 0°C has more water in it. The air at 30°C has more water in it.