Question

Part A --An aluminum wing on a passenger jet is 39 m long when its temperature is 23°C. At what temperature would the wing be 8 cm (0.08 m) shorter? (answer in *C)

Part B --On a hot summer day in Washington, D.C., the temperature is 104°F,and the relative humidity is 60%. How much water vapor does each cubic meter of air contain? ( answer in kg)

Part C-- The total volume of a new house is 606 m³. Before the heat is turned on, the air temperature inside is 10°C, and the relative humidity is 40 percent. After the air is warmed to 20°C, how much water vapor must be added to the air to make the relative humidity 40 percent? (answer in kg)

Part D-- The temperature of the air in thermals decreases about 10°C for each 1,000 m they rise. If a thermal leaves the ground with a temperature of 40°C and a relative humidity of 77 percent, at what altitude will the air become saturated and the water vapor begin to condense to form a cloud? (In other words, at what altitude does the temperature equal the dew point?) (answer in m)

Answer 1