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2 years ago

What were some challenges engineers faced in designing aqueducts.

Engineering

1 answer:

Harman [31]2 years ago

8 0

Answer:

Valleys and low-lying areas, hills and mountains, were some of the challenges faced by Roman engineers who built Aqueducts. The first aqueduct was built in Rome around 312 BC. By the 3rd century AD, it became common.

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When the grounded conductor is to be spliced in a 12-inch by 12-inch junction box, there shall be at least ? of free conductor l

slamgirl [31]

There should be a 6" free conductor left for splicing

Why there should be 6" splicing?

You must leave the junction box with at least six inches of free conductor wiring when running electrical cables from the box to the box for connecting needs.

Actually, 6-8 inches can be left when running the electric cables, additionally even if the grounded conductor is to be spliced in a 12-inch by 12-inch.

Conductor splicing: A splice, which can be finished using either the crimping or soldering method, is the joining of two or more conductors in a way that produces a permanent electrical termination and mechanical link.

Hence we can conclude that 6 inches is fine for the conductor splicing

To learn more about splicing
brainly.com/question/7668842
#SPJ4

7 0

1 year ago

1. A flywheel is suspended by resting the inside of the rim on a horizontal knife edge so that the wheel can swing in a vertical

sammy [17]

Answer: A fly wheel having a mass of 30kg was allowed to swing as pendulum about a knife edge at inner side of the rim as shown in figure.

Explanation:

8 0

3 years ago

With which type of media are you interacting when you read an online shopping website? A. film B. print C. electronic D. social

irina [24]

With which type of media are you interacting when you read an online shopping website?

A. film

B. print

C. electronic

<h3><u>D. social </u><u>media</u></h3>

Digital media/social media. Normally through ads

8 0

2 years ago

TODO EMPLEADO ESTA OBLIGADO A PRESTAR SUS SERVICIOS LABORALES 72 HORAS A LA SEMANA?

grandymaker [24]

Si depende en que casos se y de que trate su trabajo pero tampoco lo pueden obligar pero como ya dije depende

6 0

3 years ago

An angle is observed repeatedly using the same equipment and procedures producing the data below:32 ∘ 37' 00", 32 ∘ 37' 10", 32

ki77a [65]

Answer:

a) x_average = 34.51077°, b) σ = 2.69°, c) σ = 2.5107°

Explanation:

a) The most likely value of a measure is

x_average = ∑ $x_{i}$ / n-1

The angle measurements are in the Sixty Base System, to simplify the calculations let's reduce the measurements

1° = 60 min

1 min = 60 s

Table 1

Angle angle converted (x-x_average) (x-x_average)²

32 32,000 2,51077 6.3040

37 00” 37,000 2,48923 6.1963

32 32,000 2,51077 6.3040

37 10” 37.00277 2.492 6.2101

32 32,000 2,51077 6.3040

37 10” 37.1667 2.6559 7.0538

32 32,000 2,51077 6.3040

36 55” 36.9167 2.4059 5.7884

With this values in degree the calculation is easier

x_average = (32 + 37 + 32 + 37.00277 + 32 + 37.1667 + 32 + 36.9167) / 8

x_average = 276.08617 / 8

x_average = 34.51077

b) We look for the standard deviation

σ = √ ( $x_{i}$ -x_average)² / n-1

σ = √ 50.4646 / (8-1)

σ = 2.69

c) the deviation from the mean

σ = | x - $x_{i}$ | / n

σ = 20.08611 / 8

σ = 2.5107

8 0

3 years ago