pemalar At a higher altitude from the sea level, the air pressure gets lower as there are fewer air molecules. It is possible to determine the air pressure at a high altitude using the equation of motion. The following information is given: the air temperature at the sea level (defined as z=0) is 30C and that the air temperature decreases with increasing altitude z at a steady rate of 5.5C per 1000 m. The molecular weight of air is 29 x 10-3kg/mol and the ideal gas constant is 8.314J/(mol.K). a) Ungkapkan suhu udara T (dalam Kelvin) dalam fungsi ketinggian z (dalam m). Express air temperature T (in Kelvin) as a function of altitude z (in m). (5 markah/marks) b) Dengan andaian udara tidak bergerak, ringkaskan persamaan gerakan. Bagi alasan untuk membatalkan terma-terma dalam persamaan gerakan. Assuming that the air is stationary, simplify the equation of motion. Give reasons for cancellation of the terms in the equation. (5 markah/marks) pemalar At a higher altitude from the sea level, the air pressure gets lower as there are fewer air molecules. It is possible to determine the air pressure at a high altitude using the equation of motion. The following information is given: the air temperature at the sea level (defined as z=0) is 30C and that the air temperature decreases with increasing altitude z at a steady rate of 5.5C per 1000 m. The molecular weight of air is 29 x 10-3kg/mol and the ideal gas constant is 8.314J/(mol.K). a) Ungkapkan suhu udara T (dalam Kelvin) dalam fungsi ketinggian z (dalam m). Express air temperature T (in Kelvin) as a function of altitude z (in m). (5 markah/marks) b) Dengan andaian udara tidak bergerak, ringkaskan persamaan gerakan. Bagi alasan untuk membatalkan terma-terma dalam persamaan gerakan. Assuming that the air is stationary, simplify the equation of motion. Give reasons for cancellation of the terms in the equation. (5 markah/marks)