Answer:
Explained
Explanation:
Two pieces of the same metal can have different recrystallization temperatures if the pieces have been cold worked to different amounts. The piece of work cold worked to greater extend will have more internal energy to drive the recrystalline process and lower recrystallization temperature.
Yes, its possible that recrystallization to take place in some regions of a part before it does in other regions of the same part if the work has been unevenly strained or if the part have different thickness at different sections.
1) The average velocity is 56 m/min
2) The average velocity is -83 m/min
Explanation:
1)
The average velocity of an object is given by
where
d is the displacement (change in position)
t is the time elapsed
In the graph in the problem, the displacement corresponds to the distance, therefore to the change in the y-variable (
), while the time elapsed is the change in the x-variable (
), so the average velocity can be written as
At point A, we have:
At point B, we have:
So, we have
So the average velocity is
2)
In this part instead, we have the following:
At point F, we have:
At point H, we have:
So, we have
So the average velocity is
Learn more about velocity:
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I have no idea my dude sorry
Answer:
the units of work and energy is joule and unit of power is Watt
