Geostationary satellites are satellites that are orbiting the Earth above the equator and make one complete orbit every 24 hours. Because their orbital period is synchronized
with the Earth's rotational period, a geostationary satellite can always be found in the
same position in the sky relative to an observer on Earth. (GIVEN: MEarth = 5.98 x 1024
kg)
1. Determine the orbital radius of a geostationary satellite.
2. Determine the orbital speed of a geostationary satellite.
3. Determine the acceleration of a geostationary satellite.

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

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.

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