V(orbital) = Calcula la velocidad orbital de un satélite que orbita
a una distancia de 200 km de la Tierra. La masa de la tierra es de 5.98 x 1024
kg. Radio de tierra = 6.38 x 106m]:

a..5m/s
b..3m/s
c..2m/s
D..1m/s

7788.08 m/s

Explanation:

Assuming the orbit of the satellite around the Earth is a circular orbit, we can use the equation of velocity in the case of uniform circular motion:

(1)  

Where:

is the velocity of the satellite

is the Universal Gravitational Constant

is the mass of the Earth

is the radius of the orbit, which is the distance from the center of the Earth to the satellite

Substituting the known values in the equation:

(2)  

(3)  This is the orbital velocity of the satellite

As you may note, this result is not among the given options. In fact, physically these options are not logic if we are talking about the orbit of a satellite around the Earth. This is because the satellite must have a considerable orbital velocity in order to keep orbiting and avoid falling to the Earth surface due to its gravitational field and atmosferic drag (since this is a low orbit satellite, according to the given orbital height).

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.