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4 years ago

List and briefly describe two modern's materials needs

Engineering

1 answer:

Angelina_Jolie [31]4 years ago

4 0

Answer:

Modern and smart materials for making the products are improved by developing new materials and find new uses for the existing. As, modern industrialization society is increased demand and quality of the product.

Two modern's materials are:

Carbon Fiber: As, carbon fiber is a strong material and it is light in weight. Designers used it because it is five times strong as steel and two times as stiff. Carbon fiber is basically made out of very thin strands of carbon.

Fiber Optics: It is a new technology as, it is used as transparent solid to transmitted light signals.

You might be interested in

What do shoes have in the toe area?

Savatey [412]

Answer: it called a toe box is the part of a shoe that covers and protects the toes. Toe boxes come in a variety of shapes and styles depending on the type of shoe, but they should always be wide and long enough to accommodate the toes comfortably.

Explanation:

6 0

4 years ago

This disease affects our throat. IDHPHTREAI assemble

Margarita [4]

Answer:

Diphtheria.

Explanation:

Diphtheria can be defined as an acute or highly contagious (infectious) disease of the upper respiratory tract and the nose. It is characterized by the inflammation of the mucous membrane, as well as causing hindrances to proper breath and ingestion through the formation of a false membrane in the throat of living organisms.

Diphtheria is a bacterial disease caused by bacillus Corynebacterium diphtheria excreting a potent toxins in the blood that spreads easily. Therefore, if not treated on time, it could lead to a fatal heart attack, nerve damage or paralysis and death in some cases. Some of the symptoms of diphtheria are fever, sore throat and breathing disorder.

Hence, diphtheria is a disease which affects the throat of living organisms such as humans.

Additionally, diphtheria can be prevented through the use of vaccines or immunization.

5 0

3 years ago

For evolution to occur in a population there must be _______. no new mutations heritable variation among individuals in the popu

Anna007 [38]

Answer:

The correct answer is letter "B": heritable variation among individuals in the population.

Explanation:

According to the natural selection theory, greatly spread after Charles Darwin's research, four (4) conditions are needed for it to take place: <em>reproductions, heredity, variation in organisms, </em>and <em>variation among individuals in the population</em>. Only in the case the four conditions are met, natural selection occurs.

8 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

A 0.3 m pipe carries water at a velocity of 24.4 m/s. At points A and B measurements of pressure and elevation were respectively

Ksju [112]

Answer:

The answer is attached

5 0

4 years ago