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4 years ago

What is the flat shape

Engineering

1 answer:

Harlamova29_29 [7]4 years ago

6 0

[C]

The reason why I say this, is because that is the only option that looks like the "flat shape." Notice that the other options have different designs that wouldn't look the same as the flat shape. The flat shape is just a rectangle you piece of cardboard with smaller rectangles at the end of each side. As you can see, shape C shows both smaller rectangles connected without any other design or cur out.

Hope This Helped! Good Luck!

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Air is flowing steadily through a cooling section where it is cooled from 30 °C to 15 °C at a rate of 0.25 kg/s.

Lady bird [3.3K]

Answer:

$C_{day} = 2.261\,USD$

Explanation:

The heat transfer rate rejected to the refrigeration system is:

$\dot Q_{L} = (0.25\,\frac{kg}{s} )\cdot (1.005\,\frac{kJ}{kg\cdot ^{\textdegree}C} )\cdot (30\,^{\textdegree}C-15\,^{\textdegree}C)$

$\dot Q_{L} = 3.768\,kW$

The electric power needed to make refrigeration possible is:

$\dot W = \frac{\dot Q_{L}}{COP_{R}}$

$\dot W = \frac{3.768\,kW}{2.8}$

$\dot W = 1.346\,kW$

The daily energy consumption is:

$\Delta E_{day} = (1.346\,kW)\cdot (86400\,s)$

$\Delta E_{day} = 116294.4\,kJ$

$\Delta E_{day} = 32.304\,kWh$

The cost of electricity consumed by the air-conditioner per day is:

$C_{day} = c\cdot \Delta E_{day}$

$C_{day} = (0.07\,\frac{USD}{kWh} )\cdot (32.304\,kWh)$

$C_{day} = 2.261\,USD$

5 0

3 years ago

Read 2 more answers

Represent each of the following units as a combination of primitive

zimovet [89]

Answer:

a. unit of length: [L]

b. unit of volume: [ $L^3$ ]

c. unit of pressure: $P=\frac{F}{A} \equiv\frac{[MLT^{-2}]}{[L^2]}$ $[ML^{-1}T^{-2}]$

d. unit of power: $N.m.s^{-1}\equiv [ML^2T^{-3}]$

e. unit of force: $[kg.m/s^2]\equiv [MLT^{-2}]$

f. unit of power: $N.m.s^{-1}\equiv [ML^2T^{-3}]$

Force: $F=m.a=m.\frac{v}{t}=m.\frac{x}{t}\div t$

Power: $P=\frac{W}{t}=\frac{F.x}{t}$

where:

F = force

A = area

W = work

t = time

a = acceleration

v = velocity

x = displacement

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3 years ago

An organization is struggling to differentiate threats from normal traffic and access to systems. A security engineer has been a

AnnZ [28]

Answer:

Web application Firewall (WAF)

Explanation:

The Web application Firewall (WAF) will be recommended. This will enormously help any organisation that is having a struggle of differentiating threats from normal traffic and access to systems.

WAF is also going to It aggregate data and provide metrics that will assist in identifying malicious actors. Another vital function of WAF will be to block unwanted web traffic from accessing your site. It will protect against hacks, brute force attacks, DDoS attacks, cross-site scripting, SQL injection, and zero-day exploits.

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4 years ago

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kykrilka [37]

Answer:

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Explanation:

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The keyword cout represents print and it carries out print operation only.

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Assume the values of user_word and user_number to be Charles and 20, respectively.

The output of the above instruction would be

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System.out.print("'"+user_word+"' "+user_number);

In Qbasic, it is

PRINT "'"+user_word+"' "+ user_number

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3 years ago

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Answer:

Light is absorbed and knocks electrons loose. Loose electrons flow, creating a current. The current is captured and transferred to wires.

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3 years ago