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3 years ago

What must engineers keep in mind so that their solutions will be appropriate?

Engineering

1 answer:

vekshin13 years ago

7 0

Answer:

Context

Explanation:

It is of great value for an engineer to keep the context of his/her experiment in mind.

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How do I quickly learn javascript?

ollegr [7]

Answer:

I think about 1 Month to get into advance level but you become a expert in 6 Months max

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3 years ago

Two balls are chosen randomly from an urn containing 8 white 4 black, and orange balls. Suppose that we win $ 2 for each black b

Scorpion4ik [409]

(-2,-10,-1,-2,-3,-4)

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3 years ago

A structural element for a new bridge is designed for a constant load of 1000 psi. Its mean resistance is 1200 psi and the proba

andrew11 [14]

Answer:

i) SF = 0.83

ii) 10 psi

iii) 3.16 psi

iv) 0.0083

Explanation:

Constant load = 1000 Psi

mean resistance = 1200 psi

Probability of failure = 1.9 * 10^-3

Determine

i) Safety factor

S.F = 1 / (mean load / load design ) = 1 / ( 1200 / 1000 ) = 0.83

ii) Standard deviation

1.9 X 10^-3 = e ( -1/2 ( μ / б) ^3 / (2.5 * 6 )

0.004756 = e^- 20000 / б^3

hence std = 10 psi

iii) Variance

= $\sqrt{10}$ = 3.16 psi

iv) coefficient of variation

Cv = std / mean resistance

= 10 / 1200 = 0.0083

4 0

3 years ago

Air expands through a turbine from 10 bar, 900 K to 1 bar, 500 K. The inlet velocity is small compared to the exit velocity of 1

Elis [28]

Answer:

- the mass flow rate of air is 7.53 kg/s

- the exit area is 0.108 m²

Explanation:

Given the data in the question;

lets take a look at the steady state energy equation;

m" = W" $_{cv$ / [ (h₁ - h₂ ) - $\frac{V_2^2}{2}$ ]

Now at;

T₁ = 900K, h₁ = 932.93 k³/kg

T₂ = 500 K, h₂ = 503.02 k³/kg

so we substitute, in our given values

m" = [ 3200 kW × $\frac{1\frac{k^3}{s} }{1kW}$ ] / [ (932.93 - 503.02 )k³/kg - $\frac{100^2\frac{m^2}{s^2} }{2}$ | $\frac{ln}{kg\frac{m}{s^2} }$ || $\frac{1kJ}{10^3N-m}$ | ]

m" = 7.53 kg/s

Therefore, the mass flow rate of air is 7.53 kg/s

now, Exit area A₂ = v₂m" / V₂

we know that; pv = RT

A₂ = RT₂m" / P₂V₂

so we substitute

A₂ = {[ $(\frac{8.314}{28.97}\frac{k^3}{kg.K})$ × $500 K$ × $(7.54 kg/s)$ ] / [(1 bar)(100 m/s )]} | $\frac{1 bar}{10N/m^2}$ || $10^3N.m/1k^3$

A₂ = 0.108 m²

Therefore, the exit area is 0.108 m²

8 0

3 years ago

When designing a dashboard, how can data analysts ensure that charts and graphs are most effective? Select all that apply.

Burka [1]

When designing a dashboard, how can data analysts ensure that charts and graphs are most effective by Place them in a balanced layout

<h3>What is the work of a data analyst?</h3>

In order to understand the customers of a company better and find ways to use the data to address issues, data analysts evaluate the available information.
Along with sharing it with other stakeholders, they also tell the company's management.
Data analytics is described as a stressful profession by many data experts. In light of this, it is imperative that everyone considering a career in data analytics and science reconsiders their plans and carefully considers their options.
In contrast to popular belief, data analysis is a process that combines both "hard" and "soft" skills.

To learn more about data analysts refer to:

brainly.com/question/28465669

#SPJ4

5 0

1 year ago