3 years ago

Witch of the following is the correct definition of convention

Physics

1 answer:

iogann1982 [59]3 years ago

3 0

Answer:

A is the answer .(A) is correct

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Determine the critical crack length for a through crack contained within a thick plate of 7150-T651 aluminum alloy that is in un

Mila [183]

Explanation:

Formula to determine the critical crack is as follows.

$K_{IC} = \gamma \sigma_{f} \sqrt{\pi \times a}$

$\gamma$ = 1, $K_{IC}$ = 24.1

[/tex]\sigma_{y}[/tex] = 570

and, $\sigma_{f} = 570 \times \frac{3}{4}$

= 427.5

Hence, we will calculate the critical crack length as follows.

a = $\frac{1}{\pi} \times (\frac{K_{IC}}{\sigma_{f}})^{2}$

= $\frac{1}{3.14} \times (\frac{24.1}{427.5})^{2}$

= $10.13 \times 10^{-4}$

Therefore, largest size is as follows.

Largest size = 2a

= $2 \times 10.13 \times 10^{-4}$

= $20.26 \times 10^{-4}$

Thus, we can conclude that the critical crack length for a through crack contained within the given plate is $20.26 \times 10^{-4}$ .

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3 years ago

What is the average speed of this car over the entire journey ?

lesya [120]

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Explanation: give brainliest

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2 years ago

1. A car travels a distance of 200 m in 4 seconds. What is the velocity of the car?

dybincka [34]

Answer:

velocity = distance / time taken

= 200/4

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is the correct answer

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3 years ago

A car is initially moving at 35 km/h along a straight highway. To pass another car, it speeds up to 135 km/h in 10.5 seconds at

Aleks04 [339]

Acceleration = (velocity final-velocity initial)/ time
where
velocity final = 135 km/hr x 1 hr /3600 s x 1000m/1km
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velocity initial = 35 km/hr x 1hr /3600 s x 1000 m/1 km
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4. A helicopter is flying at a height of 1.5km. If it has 50MJ of G.P.E., what is the mass of the

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Its its tony lopez

explanation

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3 years ago