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svetlana [45]
3 years ago
14

A student wants to determine whether an unknown solid is an ionic compound. He puts some in water and finds that it does not dis

solve. He says that this proves the solid is ionic. Which best evaluates the student's reasoning? (2 points) He is incorrect, because water can dissolve ionic solids. The test proves nothing, because water dissolves all solids. He is correct, because polar liquids cannot dissolve ionic solids. The test proves nothing, because it only shows that the solid is a compound.
Physics
1 answer:
elena-14-01-66 [18.8K]3 years ago
8 0

Answer:

b

Explanation:

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A generator has a square coil consisting of 269 turns. The coil rotates at 113 rad/s in a 0.222-T magnetic field. The peak outpu
Natalka [10]

Answer:

length of one side of the coil is 0.1083 m

Explanation:

given data

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solution

we will apply here formula for maximum emf induced in a coil that is

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and here Area A = l²

so

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put here value of A from equation 1

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put here value and we will get

l =  \sqrt{\frac{79.2}{269\times 0.222\times 113}}

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