The second law of thermodynamics states that whenever energy changes occur, DISORDER always increases.
<span>The mass of an atom comes from
the protons and neutrons that is found in the nucleus. The number of protons is
the atomic number of an element. To find the number of neutrons, subtract the
atomic number from the mass of an atom. For example, sodium’s atomic number is
11. This will tell us that sodium has 11 protons in it. The atomic mass of
sodium is 23. So subtract 23 form 11 gives us 12. Therefore, there are 12
neutrons in sodium.</span>
Answer:
180m to the east
Explanation:
Displacement is the distance traveled in a specific direction. It is a vector quantity with both magnitude and direction. Therefore, the start and finish position is very paramount.
point A runs 150m east,
70m west
100m east
150m
--------------------------------------------------------→
70m
←---------------------
100m
-----------------------------------→
The displacement of the athlete = 150 - 80 + 100 = 180m to the east
Explanation:
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Two common stars are observed by an astronomer. It turns out that the first one is twice as hot as the second. This indicates that the first emits around 16 times as much energy as the second.
<h3>
Describe about astronomers?</h3>
The two main categories of astronomers are observational and theoretical. Direct observations of celestial objects are made by observational astronomers, who then evaluate the results. Theoretical astronomers, on the other hand, develop and research models of phenomena that cannot be seen. Because a system of stars or a galaxy has a life cycle that lasts millions to billions of years, astronomers must take photographs of various systems at distinct stages in order to understand how they create, develop, and die. They build models or run simulations using these data to theorize about how various astronomical objects function.
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