An airplane is flying at 300 mi/h at 4000 m standard altitude. as is typical, the air velocity relative to the upper surface of the wing, near its maximum thickness, is 26 percent higher than the plane’s velocity. using bernoulli’s equation, calculate the absolute pressure at this point on the wing. neglect elevation changes and compressibility.

57330.17766 Pa

Explanation:

= Pressure at 4000 m = 61660 Pa

= Density at 4000 m = 0.8194 kg/m³

(Values taken from table of properties of air)

= Velocity of jet =

= Velocity at max thickness

From Bernoulli's equation

The absolute pressure at this point on the wing is 57330.17766 Pa

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

the answer is b i think