On June 26, 1990, the high ternperature recorded at PHX at approxinately 4 prn was 122℉ and the barometric pressure was 29.65 inHg. Assume that the pressue reading is taken in a room where the pressure is equalized with the atmosphere, but the temperature is kept at 20°C
What was the air density at PHX at 4 pm on June 26, 1990?



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