An ideal bypass turbojet (no losses in compressor, burner, turbine, nozzle, fan, and fan nozzle) has a bypass ratio 'lj! , of 8: 1 and a maximum turbine inlet temperature of 1200 k. at takeoff the ambient conditions are 298 k and 101 kpa. the bypass nozzle exhaust and core engine nozzle exhaust velocities are identical. what compressor pressure ratio will maximize takeoff thrust? for ease of calculation the approximation f < < 1 may be used (f being the fuel-air ratio for the core engine) and the specific heat ratio 'y may be taken to be 1.4 throughout.

answer: electrons

do you have a formula possibly

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.