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HACTEHA [7]
3 years ago
15

A student claims that titanium is the strongest material to fracture. Based on this interaction, which evidence would best suppo

rt the student's claim?
a. Titanium takes the longest time to reach fracture.
b. Titanium has the highest fracture stress value.
c. Titanium deforms the least before fracture.
d. Titanium increases its fracture strength as the load increases.
Engineering
1 answer:
Nataliya [291]3 years ago
8 0

Answer:

b. Titanium has the highest fracture stress value.

Explanation:

Titanium is the strongest material to fracture, according to the student. To support his claim, the evidence should be .. the titanium has the highest stress value for fracture.  

If the materials is having high value of fracture stress it means that it is strong material and it is not easy to break that type of materials.

Therefore the answer will be B.

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Answer:

Check image, right on PLATO

Explanation:

7 0
3 years ago
A thick aluminum block initially at 26.5°C is subjected to constant heat flux of 4000 W/m2 by an electric resistance heater whos
Yanka [14]

Given Information:

Initial temperature of aluminum block = 26.5°C

Heat flux = 4000 w/m²

Time = 2112 seconds

Time = 30 minutes = 30*60 = 1800 seconds

Required Information:

Rise in surface temperature = ?

Answer:

Rise in surface temperature = 8.6 °C after 2112 seconds

Rise in surface temperature = 8 °C after 30 minutes

Explanation:

The surface temperature of the aluminum block is given by

T_{surface} = T_{initial} + \frac{q}{k} \sqrt{\frac{4\alpha t}{\pi} }

Where q is the heat flux supplied to aluminum block, k is the conductivity of pure aluminum and α is the diffusivity of pure aluminum.

After t = 2112 sec:

T_{surface} = 26.5 + \frac{4000}{237} \sqrt{\frac{4(9.71\times 10^{-5}) (2112)}{\pi} }\\\\T_{surface} = 26.5 + \frac{4000}{237} (0.51098)\\\\T_{surface} = 26.5 + 8.6\\\\T_{surface} = 35.1\\\\

The rise in the surface temperature is

Rise = 35.1 - 26.5 = 8.6 °C

Therefore, the surface temperature of the block will rise by 8.6 °C after 2112 seconds.

After t = 30 mins:

T_{surface} = 26.5 + \frac{4000}{237} \sqrt{\frac{4(9.71\times 10^{-5}) (1800)}{\pi} }\\\\T_{surface} = 26.5 + \frac{4000}{237} (0.4717)\\\\T_{surface} = 26.5 + 7.96\\\\T_{surface} = 34.5\\\\

The rise in the surface temperature is

Rise = 34.5 - 26.5 = 8 °C

Therefore, the surface temperature of the block will rise by 8 °C after 30 minutes.

5 0
3 years ago
A 2m high sandy fill material was placed loosely at a relative density of 47%. Laboratory studies indicated that the maximum and
Llana [10]

Answer:

2

Explanation:To find the solution we must first make the transformations to international units,

In this way:

Inches of length (L) to feet =

So we can identify the area by hour:

Once the area is identified, we now identify the number of passes required,

Passes required = Area x number of passes

We transform speed to international units

So we can identify the covered area

where

m = drum widht

p = efficiency

In this way we obtain the number of rollers given by:

No. of Rollers = Passes required / covered area

No of rollers = 48136/40269

No of rollers = 1.19, that is, 2

Read more on Brainly.com - brainly.com/question/13686900#readmore.

6 0
3 years ago
The "Crawler" developed to transport the Saturn V launch vehicle from the assembly building to the launch pad is the largest lan
Illusion [34]

Answer:

a) 152000 slugs

b) 2220000 kg or 2220 metric tons

Explanation:

A body with a weight of 4.9*10^6 lbf has a mass of

4.9*10^6 lbm * 1 lbf/lbm = 4.9*10^6 lbm

This mass value can then be converted to other mass values.

1 slug is 32.17 lbm

Therefore:

4.9*10^6 lbm * 1 slug / (32.17 lbm) = 152000 slugs

1 lb is 0.453 kg

Therefore:

4.9*10^6 lbm / (1/0.453) * kg/lbm = 2220000 kg

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If my current directory is ‘AR’ write the path for my current directory
salantis [7]

Answer:

sorry not having idea about answer

6 0
3 years ago
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