Answer: a
Explanation: because i said so
Astronomers find white dwarfs that distinguish them from main sequence stars because white dwarfs get really hot, we can search for their ultraviolet radiation.
<h3>What is a white dwarf?</h3>
A white dwarf is a very hot star that radiated much energy in the form of ultraviolet radiation.
This UV radiation is initially very bright and then these stars become red with time.
In conclusion, Astronomers find white dwarfs they can search for their ultraviolet radiation.
Learn more about white dwarfs here:
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Answer:
A.
Explanation:
To solve this problem it is necessary to take into account the concepts related to angular velocity and centripetal acceleration,
from the cinematic equations of motion we know that
where,
V = Tangential Velocity
r = radius
Angular velocity
While the centripetal acceleration is given by
The displacement of the object is based on gravitational acceleration, so
a = g = 9.8 and the radius would be
Reemplazando:
Therefore the answer is A.
Its Summer in the Argentina.
Correct option is B.