Answer:
Step-by-step explanation:
The order of the top three are
In that order. Copper is used where there is some tolerance for corrosion for it much cheaper than the other two. Gold is used where corosion is a consideration because Gold does not tarnish. Silver is used when conductivity is the primary concern.
Aluminum was tried in house wiring. It is very brittle. I think it was abandoned.
Answer:
Pure silver is best conductor of electricity.
Step-by-step explanation:
Conductivity is the property of materials to which extent a material allows electric current to flow through it.
Metals is defined as the substance which is good conductor of heat and electricity.
Given are list of highly conductive metals,
Pure silver
Pure copper
Pure gold
Aluminium
The presence of free electrons determines a metal’s conductivity.
Silver and copper are metals with single, free-moving electrons.
Pure silver is the most conductive metal of all metals
Running time for 1 day = 15
Running time for 1 week = 15*7= 105
So, yes she has completed her goal
Giulia will complete her running goal in seven days.
To determine if Giulia will complete her running goal in seven days, we need to calculate her total running time. Since she runs for an average of 15 minutes each day, her total running time in seven days would be 15 minutes/day * 7 days = 105 minutes. Therefore, Giulia will be able to complete her running goal of 100 minutes in seven days.
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There are two ways of reflection.
Along x-axis:
(x, y) – (x, -y)
Along y-axis:
(x, y) - (-x, y)
The coordinate of the reflectedpoint is (7, -4).
There are two ways of reflection.
Along x-axis:
(x, y) – (x, -y)
Along y-axis:
(x, y) - (-x, y)
We have,
The point (-7,4) is reflected across the y-axis and then across the x-axis.
This means,
(-7, 4) when reflected across the y-axis we get,
(-7, 4) = (7, 4)
Now,
(7, 4) is reflected across the x-axis.
(7, 4) = (7, -4)
Thus,
The coordinate of the reflectedpoint is (7, -4).
Learn more about reflections here:
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