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Anarel [89]
3 years ago
10

Why isn't iron used to make coin

Physics
2 answers:
AleksandrR [38]3 years ago
7 0
If iron were used to make coins then it would rust easily,because of its exposure to water, air etc..
Anna007 [38]3 years ago
7 0
Iron is highly reactive, particularly to oxygen and water. This means it will oxidize, or rust.
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Varvara68 [4.7K]

Answer:

-10.8°, or 10.8° below the +x axis

Explanation:

The x component of the resultant vector is:

x = 3.14 cos(30.0°) + 2.71 cos(-60.0°)

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The y component of the resultant vector is:

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y = -0.777

Therefore, the angle between the resultant vector and the +x axis is:

θ = atan(y / x)

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θ = -10.8°

The angle is -10.8°, or 10.8° below the +x axis.

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