Atransport aircraft whose wing span is 35.8 m is flying at 262 kts at an altitude where the lateral relative density parameter i2= 24.4. the dimensionless controls-fixed lateral directional characteristic equation is 4 5.8 20.32 + 79.0 0.37 = 0 (a) what can be deduced about the lateral-directional stability of the aircraft from inspection of the characteristic equation? (b) solve the characteristic equation approximately; determine estimates for the time constants of the nonoscillatory modes and the frequency and damping ratio of the oscillatory mode (c) comment on the acceptability of this aircraft

-4 on

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2