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IRINA_888 [86]
3 years ago
7

What causes a substance to change states of matter?

Physics
1 answer:
Tatiana [17]3 years ago
3 0

temperature is the answer

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4 years ago
. A 2.0-m wire carries a current of 15 A directed along the positive x axis in a region where the magnetic field is uniform and
Lady bird [3.3K]

Answer:

The resulting magnetic force on the wire is -1.2kN

Explanation:

The magnetic force on a current carrying wire of length 'L' with current 'I' in a magnetic field B is

F = I (L*B)

Finding (L * B) , where L = (2, 0, 0)m , B = (30, -40, 0)

L x B = \left[\begin{array}{ccc}i&j&k\\2&0&0\\30&-40&0\end{array}\right] = (0, 0, -80)

we can now solve

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F = -1200 kmN

F = -1200 kN * 10⁻³

F = -1.2kN

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Hope this helps :)

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3 years ago
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