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If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.