can you please verify these answers and explain if their wrong, i want to understand

6. A venturi tube may be used as the air inlet to an automobile carburetor. If the 2.0-em diameter pipe (Pair - 1.2 kg/m'.) narrows to a 1.0-em diameter, what is the drop in pressure for an airflow of 3.0 m/s in the 2.0-cm section? a. 70 Pa b. 85 Pa 100 Pa d. 120 Pa e. 81 Pa 7. A Boeing 737 airliner has a mass of 20 000 kg and the total area of both wings is 100 m . What is the pressure difference between the top and bottom surface of each wing when the airplane is in a steady, horizontal, cruising flight at a constant altitude? a 1 960 N/m b 3 920 N/m c. 7 840 N/m d. 4 560 N/m2 e. 3 070 N/m 8. The aorta of a person has a cross-section area of 3 (cm2) with blood flow at 20 (cm/s). A deposit farther down reduces the cross-section area to 2 (cm?). What is the velocity of blood flow there? a. 20 (cm/s) b. 30 (cm/s) c. 45 (cm/s) d. 60 (cm/s) e. 10 (m/s) 9. Two rectangular water tanks are filled with water to the same depth. Tank A has a bottom surface of 4 (m?) and Tank B has a bottom surface of 2 (m2). Which of the statements below are correct for the bottom of the tank? a. FA FB and PA=PB d. FA= FB and PA= PB 10. If the temperature is 99.50 F, what is it in Celsius? a. 0 C b. 5.50 C C. 200 C d. 37.50 C 1 1. In the above question, what is the value of the temperature in Kelvin? a. 273 K 6. 278.5 K c. 293 K d. 310.5 K 12. An aluminum flagpole is 60 (m) high when measured on a cold winter day at ( C. By how much its length increase in the summer when the temperature rises to 350 C ? a (Aluminum) = 23 X 10 -6 / C a. 2.4 (cm) b. 4.8 (cm) Co 2.4 (m) d. 4.8 (m)