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This aircraft now lands in Hong Kong after a long flight, where it used up 82,900 L of fuel (assume jet fuel has a density of 0.803 kg/L). Assume conditions on the ground are 32.8°C with a pressure of 101.3 kPa. With what minimum speed can the aircraft land to ensure sufficient lift?

A) Use Bernoulli's equation to find the speed
B) Use Archimedes' principle to find the speed
C) Use Newton's second law to find the speed
D) Use Coulomb's law to find the speed

User Apolymoxic
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Final answer:

The minimum speed for aircraft landing to ensure sufficient lift is typically calculated using Bernoulli's equation, which involves factors like aircraft weight, wing area, air density, and wing's lift coefficient. Without specific wing design details, the exact landing speed cannot be determined.

Step-by-step explanation:

To determine the minimum speed at which an aircraft can land and ensure sufficient lift, one would typically use Bernoulli's equation, which relates the speed of a fluid (in this case, air) to its pressure and elevation. We cannot calculate the required landing speed using the information provided, as we would need to know the specifics of the aircraft's wing design and the lift equation specific to those wings. However, the principles used to calculate landing speeds are based on physics, specifically Bernoulli's principle for lift generation. Other options like Archimedes' principle, related to buoyancy, Newton's second law, which relates force, mass, and acceleration, and Coulomb's law, governing electrostatic interactions, are not relevant when calculating the aircraft's landing speed. Important factors that influence the necessary landing speed include the aircraft weight, wing surface area, air density, and the coefficient of lift for the wings. Without these, an exact speed cannot be determined. Bernoulli's principle can provide an approximate answer, realizing that real-world factors such as turbulence can affect the actual lift experienced by the aircraft.

User Radarhere
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