Answer:
28.5 days
Explanation:
The orbital period of a satellite does not depend on the mass of the moon, it depends only on radius of the rotation. Satellites can operate by themselves or as part of a larger system, a satellite formation or satellite constellation.
Therefore , the time period of satellite will be equal to that of the period of the moon which is given as 28.5 days
Answer:
D (Brazil)
Explanation:
According to the key, the country filled in with the darkest color has the highest level of carbon dioxide.
According to the question, "increased levels of carbon dioxide are the result of an industrial economy".
Brazil has the darkest fill in color and therefore is the most industrialized.
Answer:
Energy of each photon is given by 
Explanation:
We have given wavelength of light 
Speed of light 
Plank's constant 
We know that energy of photon is given by 
So energy is given by
Answer:
que estuda os astros são os astronomos
Explanation: