Answer:
b
Explanation:
As the coin is rubbed, the particles in the coin vibrate (presenting kinetic energy in the particles i.e. heat). The heat is transferred as thermal energy.
Answer:
Explanation:
The consulate temperature of phenol water is 659 C
Answer: circle graph.
Justification:
A circle graph (also known as pie chart) is excellent to visualize the relative size of different sectors. Being the entire circle 100%, each sector will show the percent of each category.
In the given example, the circle will be divided in 3 different sectors, in which the size is proportional to the percent of each one.
In the given case::
<span>pH less than 8: 20%
</span><span>
</span><span> pH between 8 and 8.5: 50%,
</span><span>
</span><span>pH greater than 8.5: 30%
</span><span>
</span><span>
</span><span>So, a sector whose area is 20% will represent the first category, a sector whose area is 50% will represent the second category, and a sector whose area is 30% will represent the third category. The whole circle is 100%, this is the sum of the 3 categories is 100%.
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The primary difference between them is what they work with and what their goals are. Chemical engineers research and design production processes for things like food or gasoline while nuclear engineers focus on ways to harness and use radiation and nuclear energy.
The correct answer i believe is frcition