This star is not realistic in the surface layers, where the radiative flux limited temperature gradient becomes lower than the convective temperature gradient. the opacity in these layers is dominated by the h-ion, which has a complex opacity law well approximated for solar abundances by: (3) k(p, t) = 2 x 10-18t6p0.8 cm²/g, with t in k and p in g/cmfind the temperature at which the atmosphere becomes sufficiently transparent to radiation for convection to stop. you'll have to approximate the star's luminosity as being equal to 4tr205bt4, where t is the near-surface layer where convection stops. express your answer to the nearest 500 k, e. g. by choosing a single layer in the model output. show working, including the value of d log(t)/dr that applies when convection stops.

the inner core.

good luck: )

klicker

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.

higher potential

explanation:

because it is in a high speed so it must move into a of high potential

conduct current i mean it makes sense