# Sky

## Consider an airplane flying with a velocity of 60 m/s. Calculate the pressure

Consider an airplane flying with a velocity of 60 m/s at a standard altitude of 3 km. At a point on the wing, the airflow velocity is 70 m/s. Calculate the pressure at this point. Assume incompressible flow.

## Calculate the pressure difference between the exit and the inlet

Calculate the pressure difference between the exit and the inlet from the previous problem. The density of water is 62.4 lbm/ft3.

## Consider the incompressible flow of water through a divergent duct. Calculate the water flow velocity at the exit.

Consider the incompressible flow of water through a divergent duct. The inlet velocity and area are 5 ft./s and 10 ft.2, respectively. If the exit area is four time the inlet area, calculate the water flow velocity at the exit.

## At what value of the geometric altitude is the difference h-hG equal to 2% of h?

At what value of the geometric altitude is the difference h-hG equal to 2% of h?

## Consider an airplane flying at a pressure altitude of 33,500 ft. Calculate the outside air temperature.

Consider an airplane flying at a pressure altitude of 33,500 ft. and a density altitude of 32,000 ft. Calculate the outside air temperature.

## During a flight test of a new airplane at a standard altitude of 35,000 ft. What is the ambient air pressure?

During a flight test of a new airplane the pilot radios to the ground that she is in level flight at a standard altitude of 35,000 ft. What is the ambient air pressure far ahead of the airplane?

## Consider an airplane flying at some real altitude. What are the pressure and density altitudes?

Consider an airplane flying at some real altitude. The outside pressure and temperature are 2.65 x 104 Pa and 220 K, respectively. What are the pressure and density altitudes?

## Temperature is given as 1.9399 x 104 Pa. Calculate the standard atmospheric values

Temperature is given as 1.9399 x 104 Pa, 3.1194 x 10-1 kg/m3, and 216.66 K, respectively. Using these values, calculate the standard atmospheric values of pressure, density and temperature at an altitude of 18 km.

## Earth Science and Aerodynamics Questions

Explain profoundly how aerodynamic forces occur on a body? Aerodynamic forces are pressure forces that act on a surface which is the sum of the pressure multiplied by the area around the entire body. The four main aerodynamic forces are: Thrust is a mechanical force… Read More »Earth Science and Aerodynamics Questions

## Functions of Different Storage System In Warehouses

Storage Outdoor Storage Outdoor storage is where you store items outside, usually in an open area. The goods are stored in large open spaces or warehouses with ventilation and temperature controls. This can be done on a large scale or a small scale. Using this… Read More »Functions of Different Storage System In Warehouses