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3 years ago

11

An aluminum oxide component must not fail when a tensile stress of 16.5 mpa is applied. determine the maximum allowable surface

crack length if the surface energy of aluminum oxide is 0.90 j/m2. the modulus of elasticity of this material is 393 gpa.

1 answer:

leva [86]3 years ago

4 0

90 per square surface of the inner difference between both.

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The conversation of cyclopropane to propene in the gas phase is a first order reaction with a rate constant of 6.7x10-⁴s-¹. a) i

Rus_ich [418]

Answer: a) The concentration after 8.8min is 0.17 M

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Explanation:

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$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

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a = let initial amount of the reactant

a - x = amount left after decay process

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b) for concentration to decrease from 0.25M to 0.15M

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kirill115 [55]

C. a metal and a nonmetal

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3 years ago

Read 2 more answers