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dolphi86 [110]
3 years ago
11

Which of the following terms involves the study of all the systems, devices, knowledge, processes, organizations, items, and peo

ple involved in the operation and creation of practical artifacts?
Technology

Mathematics

Science

Engineering
Engineering
1 answer:
victus00 [196]3 years ago
7 0

Answer: Engineering

Explanation:

Engineering is a most integral aspect of human development since human settlement first began. It has propelled and will continue to propel our progress as a species in the way it knows how.

Engineering is the study of the science of all things that relate to the operation and creation of practical artifacts and the knowledge gained from this study is what is applied to human development and enables our progress in technology.

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If p = .8 and n = 50, then we can conclude that the sampling distribution of pˆ p ^ is approximately a normal distribution.
defon

Answer:

It is true that the sampling distribution of the proportions is approximately a normal distribution.

Explanation:

Solution

Given that:

N = 50

P= 0.8

Thus

p ^ =√p(1-p)/n

p ^=√0.8 (1-0.8)/50

p ^= 0.0566

Therefore,we conclude that the sampling distribution of the proportions is approximately a normal distribution.

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Do volts or amps kill you.
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How many trips would one rubber-tired Herrywampus have to make to backfill a space with a geometrical volume of 5400 cubic yard?
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Answer:

If analyzed by volume capacity, more trips are needed to fill the space, thus the required trips are 288

Explanation:

a) By volume.

The shrinkage factor is:

\frac{5400cu-yd}{1-0.25} =7200cu-yd

The volume at loose is:

V_{loose} =V_{bank} (1+swell-factor)=7200(1+0.2)=8640cu-yd

If the Herrywampus has a capacity of 30 cubic yard:

\frac{8640cu-yd}{30cu-yd/trip} =288trip

b) By weight

The swell factor in terms of percent swell is equal to:

pounds-per-cubic-yard-loose=\frac{pounds-per-cubic-yard-bank}{\frac{percent-swell}{100}+1 }

pounds-per-cubic-yard-loose=\frac{3000}{\frac{20}{100} +1} =2500lb/cu-yd

The weight of backfill is:

8640cu-yd*2500\frac{lb}{cu-yd} *\frac{1ton}{2000lb} =10800ton

The Herrywampus has a capacity of 40 ton:

\frac{10800}{40ton/trip} =270trip

If analyzed by volume capacity, more trips are needed to fill the space, thus the required trips are 288

8 0
3 years ago
How many millimeters are there in a centimeter?
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Explanation:

There are 10 millimeters in a centimeter.

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The resistivity of mercury drops suddenly to zero at a critical temperature, maki mercury a superconductor below that temperatur
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Resistance zero meaning superconductor, so True.

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