Which of these statements correctly describes a key difference between aerobic activity and anaerobic activity?

Physics

1 answer:

Digiron [165]3 years ago

3 0

C I think lol but I have to keep typing

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The modulus of elasticity for a ceramic material having 4.7 vol% porosity is 317 GPa. (a) Calculate the modulus of elasticity (i

elena-s [515]

Answer:

The answer is below

Explanation:

a) Given that the modulus of elasticity (E) = 317 GPa, to find the modulus of elasticity (in GPa) for the nonporous material ( $E_o$ ), we use the formula:

$E_0=\frac{E}{1-1.9P+0.9P^2}\\\\where\ P=4.7\%=0.047,hence:\\\\ E_0=\frac{317}{1-1.9(0.047)+0.9(0.047)^2}\\\\E_0=347.3\ GPa$

b) If the porosity P = 11.1%, then the modulus of elasticity is:

$E=E_0(1-1.9P+0.9P^2)=347.3(1-1.9(0.111)+0.9(0.111)^2)=278\ GPa$

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3 years ago

True or false

Ahat [919]

Answer:

False

Explanation:

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3 years ago

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A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s?

natulia [17]

A red racecar accelrates at a constant rate of 5 m/s2. How much time does it take to increase its speed from 50 m/s to 60 m/s?

A.17 s

B.0.058 s

C.0.25 s

D.2.0 s

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3 years ago

Place the following in order from MOST to LEAST elastic: Solids; Liquids; Gases.

Zigmanuir [339]

Sorry for the inconvenience I jus need the 5 points

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3 years ago

45. What is the wovelength of a 30. Hertz periodic

Leviafan [203]

The wavelength is 2m.

Hence, Option c) 2m is the correct answer

Given that;