3 years ago

What causes the disease bronchitis?

1 answer:

3 0

Answer:

Acute bronchitis can result from: a virus, for example, a cold or flu virus. a bacterial infection. exposure to substances that irritate the lungs, such as tobacco smoke, dust, fumes, vapors, and air pollution.

Explanation:

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What happens if you are riding your bike and hit something (like a curb) with the front wheel

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You would flip forward or to the side

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Answer:

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Explanation:

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(a) Compute the radius r of an impurity atom that will just fit into an FCC octahedral site in terms of the atomic radius R of t

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Answer:

radius r is 0.414 R

Explanation:

Given data

FCC octahedral site

atomic radius R

to find out

radius r

solution

we know that at FCC octahedral

length of side = 2 R + 2r

and by pythagorean theorem

a = 2√2R

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r = 0.414 R

so radius r is 0.414 R

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