Prior to the discovery and elaboration of Copernicus with the theory of heliocentricism, which states that the sun is the center of the universe and that the planets orbit around it in a circular manner. The theory of geocentrism was first published by another astronomer and philosopher, Ptolemy. As a custom in the early years of the society, people already stood for the idea that the earth is the center of the universe which is easy to believe at that time given that their perspective shows that the sun moves when observed from earth's atmosphere.
Stars don't have moons and planets do
The Terra satellite was sent to space on <span>December 18, 1999 and is still there in 2016. The satellite is able to monitor volcanic eruptions on Earth. The correct answer is D. </span>
Here is your answer
We know that
Velocity = Frequency × Wavelength
Here,
Frequency = 100Hz
Wavelength= .30m
So,
Velocity= 100× 0.30 m/s
v= 30 m/s
HOPE IT IS USEFUL
Flammability because density is stating about magnesium something with melting point and magnetism but Flammability is stating how easily can it be changed into a new substance by using flame.
