Answer:
C. Heat
Explanation:
HEAT is energy that is transferred due to a difference in temperatures.
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Answer:
C. The number of protons.
Explanation:
All atoms of mercury will remain the same while different isotopes may have different number of neutrons.
For example, mercury has 80 protons, correlating with its atomic number. However, the number of protons, neutrons, and electrons could vary between each atom. If there are 80 protons, then there has to be 80 electrons. This means that the protons have to be the same in order to apply to all atoms of mercury
You might want to visit this website
https://www.nedcc.org/free-resources/preservation-leaflets/4.-storage-and-handling/4.1-storage-metho...
I think rubbing two pieces of woods together will have more friction than wood rubbing against a smooth metal.
<u>Explanation:</u>
The friction offered by surfaces has a great role in deciding the ease of movement of objects along the surface.
The friction of the surface depends upon its roughness. Rough surfaces offer greater friction than smooth surfaces.
In this question wooden pieces have greater friction than that of smooth metal. So rubbing two wooden pieces together will have greater friction than rubbing a wooden piece against a smooth metal.
Explanation:
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