Propose tidal range power plant which can double its output. Initially, principle operation of tidal range power should be elaborated first followed by its application.

The  first thing a technician need to check if a new drive is not recognized by the operating system are:

The issues on how to fix it are:

Hence, The  first thing a technician need to check if a new drive is not recognized by the operating system are:

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Answer:

wind vane if it can be used to show wind speed and the other is a

Explanation:

please mark 5 star if im right and brainly when ya can

The "Focus Four" Hazards, which account for the majority of fatalities in the building sector, are falls, being struck by an object, being caught in or between, and electrocution.

Injuries caused by a person being squeezed, caught, crushed, pinched, or compressed between two or more items, or between portions of an object, are referred to as caught-in or -between hazards, according to OSHA.

An organised method for evaluating hazards and the risks they pose is provided by the Hazard Identification and Risk Assessment (HIRA) research. HIRA Safety offers the method to manage the risk and aids in determining the goal of a hazard that has been found.

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Efficient and reliable communication and tracking system.

In the aviation industry, having an efficient and reliable communication and tracking system is crucial for ensuring safe and smooth operations. This advanced system enables real-time communication between pilots, air traffic controllers, and ground personnel, allowing for timely updates, instructions, and emergency responses. It also facilitates the tracking and monitoring of aircraft, enhancing situational awareness and enabling proactive measures in case of any deviations or emergencies.

Implementing such advanced communication and tracking systems requires the collaboration of airlines and aviation companies with technology providers and regulatory authorities. They need to invest in the development and deployment of cutting-edge technologies like satellite-based communication systems, ADS-B (Automatic Dependent Surveillance-Broadcast), and data link systems.

These systems should be capable of transmitting and receiving large volumes of data securely and seamlessly. Additionally, airlines and aviation companies need to ensure proper training and familiarization of their personnel with these systems to maximize their effectiveness and utilization in day-to-day operations.

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I inferred you meant emerging technologies we see today.

Explanation:

1. 3D Printing

A three dimensional printing allows a digital model to be printed (constructed) into a physical object.

A box, an industrial design and many more could be printed within minutes.

2. AI voice recognition devices

Another trend in the tech world is the rise in artificial intelligence been used in voice recognition devices that not only recognize one's voice but also take commands from the user.

This technology allows one to listen to the internet, such as listening to music online.

The tech world is ever changing with new technology beyond one's consumption on the increase daily.

Answer:

ALL CAREFULLY ANSWERED CORRECTLY

Explanation:

1) A loaf of Bread PHYSICAL SYSTEM

✓ How can the environment affect the edibility of the bread

✓ What are the constituents that makes up the bread

✓ What process is involved in these constituents mixing to form the loaf.

2) The law of thermodynamics makes us to understand that when heat/energy passes through a system, the systems internal energy changes with respect to the conservation of energy law. That is energy lost = energy gained. Typically, ice would melt in a cup of hot tea because of the thermal energy in the molecules of the hot tea. When you heat a material, you are adding thermal kinetic energy to its molecules and usually raising its temperature. The temperature of the ice raises due to the kinetic energy added to it and it melts to water.

3) The theory of systems view the world as a complex system of interconnected parts. If we consider the society; (financial systems, political systems, etc) we will agree that they individually have their own components and it's the summation of this components that makes the system, this implies that system thinking could be applicable in this kinda of systems as long as they are made up of components.

4) Technology has boosted every sector of our lives and it has the capacity to do more. Restricting it's importance to entertainment alone would be an underusing of its potentials. Engineering students infact should not need any drive to be encouraged about maximizing all it can do in shaping our world.

5) ~ Nature shows its splendid soul

~Never ceases to leave us in amazement

~And we are in love

An object that contains a physical system is a T.V. remote control. Three questions that contain physical systems are:

Sensors, motors, and robots are examples of physical systems. The use of the TV remote controls, traffic lights, security systems, air conditioning systems, and automatic doors are just a few examples given. We give explanations for why we employ physical systems.

A physical system is made up of components or elements that when put together display behavior that its component parts alone do not. (Biological systems and living systems are included in this definition.) The two components of physical systems are matter and energy.

Therefore, a TV remote control is an item that houses a physical system. Three questions are:

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The dependency on hunting decreased from Stone Age to the Bronze Age is because in Bronze Age, people learned to grow crops and keeping domestic livestock, so there was no  reason for hunting.

Stone Age is the age when humans started making tools of stones and used them in hunting and cutting. It was the prehistoric period.

Bronze Age is after the Stone Age where humans know about metals started to use bronze. It is the period between 3300 BC to 1200 BC.

Thus, the dependency on hunting decreased from Stone Age to the Bronze Age is because in Bronze Age, people learned to grow crops and keeping domestic livestock, so there was no  reason for hunting.

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Answer:

Rate of Heat Loss = 336 W

Explanation:

First, we will find the surface area of the cylinder that is modelled as the man:

\(Area = A = (2\pi r)(l)\)

where,

r = radius of cylinder = 30 cm/2 = 15 cm = 0.15 m

l = length of cylinder = 170 cm = 1.7 m

Therefore,

\(A = 2\pi(0.15\ m)(1.7\ m)\\A = 1.6\ m^2\)

Now, we will calculate the rate of heat loss:

\(Rate\ of\ Heat\ Loss = hA\Delta T\)

where,

h = convective heat tranfer  coefficient = 15 W/m²K

ΔT = Temperature difference = 34°C - 20°C = 14°C

Therefore,

\(Rate\ of\ Heat\ Loss = (15\ W/m^2K)(1.6\ m^2)(14\ K)\\\)

Rate of Heat Loss = 336 W

Tensile stress in a thin wall spherical shell is given by

σ = ( p r ) /2t

This is the type of stress that involves pulling out. it is the opposite of compressive stress.

The tensile stress, σ  at the circumference of the shell is the hoop stress. The value equals that of pressure acting on the area.

Therefore:

σ * 2πr * t = p * πr^2

where

2πr = circumference of a circle

πr^2 = area of a circle

p = internal pressure

t = thickness

σ * 2πr * t = p * πr^2

σ = ( p r ) /2t

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An incremental encoder with 500 windows in its track is used for speed measurement.

Speed = 1 rev/s

With 500 windows, we have 500 pulses/s

A. Pulse counting method

Counting period = 1/10Hz=0.1 s

Pulse count (in 0.1 s) = 500 × 0.1 = 50

Percentage resolution = 1/50×100% = 2%

B.Pulse timing method

At 500 pulses/s, pulse period = 1/500s

Percentage resolution = 0.005%

ii. Speed = 100 rev/s

With 500 windows, we have 50,000 pulses/s

a. Pulse counting method

Pulse count (in 0.1 s) = 50,000 × 0.1 = 5000

Speed (Rev/s)  1, 100.0

Pulse-Counting Method (%) 2, 0.02

Pulse-Timing Method (%) 0.005, 0.5

Improves with speed, and hence it is more suitable for measuring high speeds. Furthermore, in the pulse-timing method, the resolution degrades with speed, and hence it is more suitable for measuring low speeds.

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The pressure exerted by water at point A is 4.75 kN/m^2, or 4.75 kPa.

The specific weight of mercury is 13.6 times that of water. Given that the atmospheric pressure at point A is 15 cm and the height difference between points A and B (h2 - h1) is 30 cm, we can determine the pressure difference between the two points.

The specific weight of a fluid is the weight per unit volume of the fluid. In this case, the specific weight of water is denoted by γw, and the specific weight of mercury is denoted by γm. We can express the relationship between these two specific weights as:

γm = 13.6γw

Since the specific weight of a fluid is directly proportional to the pressure it exerts, we can write:

Pm = 13.6Pw

Where Pm is the pressure exerted by mercury and Pw is the pressure exerted by water.

Using the hydrostatic pressure equation, we can relate the pressure difference to the height difference:

Pw = γw * h1

Pm = γm * h2

Substituting the values and known relationships:

Pw = γw * h1 = 13.6 * γw * h2 = 13.6 * Pw

Simplifying the equation:

12.6 * Pw = 59.8 kN/m^2

Dividing both sides by 12.6:

Pw = 4.75 kN/m^2

Therefore, the pressure exerted by water at point A is 4.75 kN/m^2, or 4.75 kPa.

Please note that there is a discrepancy between the given atmospheric pressure (59.8 kN/m^2) and the calculated pressure of water (4.75 kN/m^2). It is possible that there was an error in the provided atmospheric pressure value or in the calculations.

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The height specific of the wall should be measured numerous times throughout its length by the engineer, who should average the results.

A wall's height may vary by several centimeters at various spots along its length, making it challenging to measure with a millimeter ruler. The engineer should measure the wall numerous times along its length and average the data to assure accuracy. The height of the wall should be measured numerous times throughout its length by the engineer, who should average the results. This will provide a more accurate measurement of the wall's height while taking any variations into consideration. In order to obtain the most precise reading, the engineer should measure the wall at spots that are spaced as evenly as possible. The most precise result is obtained by taking several measurements and averaging them.

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The temperature and pressure of an ideal gas are directly proportional

The pressure of the system should be in the range B) 94 psig

The given refrigerator parameters are;

The temperature of the system and the surrounding, T₁ = 75 °F = 237.0389 K

The pressure to which the system was charged with nitrogen, P₁ = 100 psig

The temperature to which the system dropped, T₂ = 50 °F = 283.15 K

The required parameter;

The pressure, P₂, of the system at 50°F

Method:

The relationship between pressure and temperature is given by Gay-Lussac's law as follows;

At constant volume, the pressure of a given mass of gas is directly proportional to its temperature in Kelvin

Mathematically, we have;

\(\dfrac{P_1}{T_1} = \mathbf{\dfrac{P_2}{T_2}}\)

Plugging in the values of the variables gives;

\(\mathbf{\dfrac{100 \ psig}{297.0389}} = \dfrac{P_2}{283.15}\)

Therefore;

\(P_2 = \mathbf{283.15 \, ^{\circ}F \times \dfrac{100 \ psig}{297.0389\ ^{\circ}F} \approx 95.3 \, ^{\circ}F}\)

The closest option to the above pressure is option B) 94 psig

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Answer:

Electrical energy

Assuming that the intrinsic carrier concentration is roughly 1 × 10¹⁰ cm³, the built-in potential is given by: Therefore, the p-n junction has a built-in potential of about -0.18 V.

The difference in electron and hole concentrations on the p-side and n-side of a p-n junction controls its intrinsic potential. The equation can be used to compute it.

\(V_{bi} = \frac{kT}{q} \times \ln \frac{N_{d} \times N_{a}}{n_{i}^{2}}\)

where,

\(V_{bi}\) is the intrinsic potential (measured in volts),

k is the Boltzmann constant (8.62 × 10⁻⁵ eV/K),

T is the temperature (measured in kelvin),

q is the electronic charge (1.6 × 10⁻¹⁹ C),

\(N_{d}\) is the donor concentration (measured in cm³).

Nₐ is the acceptor (measured in cm³), and

\(n_{i}\) is the intrinsic carrier concentration (measured in cm³).

Now,

\(V_{bi} = \frac{kT}{q} \times \ln \frac{(1 \times 10^{17}) \times (2 \times 10^{17})}{n_{i}^{2}}\)

    \(= \frac{(8.62 \times 10^{-5}) \times (300)}{1.6 \times 10^-{19}} \times \ln \frac{2 \times 10^{17}}{n_{i}^{2}}\)

    \(= 0.0259 \times \ln \frac{2 \times 10^{17}}{n_{i}^{2}}\)

\(V_{bi} = 0.0259 \times \ln \frac{2 \times 10^{17}}{(1 \times 10^{10})^{2}}\)

     = \(0.0259 \times \ln \frac{2 \times 10^{17}}{1 \times 10^{20}}\)

     = 0.0259 × ln(2 × 10⁻³)

     = 0.0259 × (-6.9078)

     = -0.18 V

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Answer:

A cost is something you have to give up or sacrifice and a benefit is something that is gained or is helpful.

Explanation:

In a cost-benefit analysis of a system, an engineer is to simply look at the requirements for the system and determine the costs to build the system, both in financial value and energy value.  Additionally, the engineer needs to determine the benefits that would come from choosing a particular path of cost.  If the benefits outweigh the cost for the project, then the solution is accepted.  Else, the cost outweighs the benefit and the solution is rejected.

unlike the c-family of languages that use curly braces to delineate blocks of code, python uses indentation to indicate a statement's membership in a block.

In Python, indentation is used to indicate a statement's membership in a block of code. Python uses consistent and meaningful indentation to define the scope and structure of code blocks, such as loops, conditionals, and functions. The standard convention in Python is to use four spaces for each level of indentation, although some developers may prefer to use tabs or a different number of spaces. The use of indentation in Python promotes readability and helps enforce the logical structure of the code.

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Answer:

Along the zero to measure an object on a ruler

Answer:

∂θ/∂ξ|ξ=1 = 0

Explanation:

(i) To describe the temperature distribution with time and space across the slab, we can use the heat diffusion equation:

ρc_p∂T/∂t = k∂²T/∂x²

where ρ is the density of the oak tree, c_p is its specific heat capacity, T is the temperature, t is time, x is the distance along the thickness of the slab, and k is the thermal conductivity of the oak tree.

Using the given values, the differential equation can be written as:

ρc_p∂T/∂t = k∂²T/∂x²

(ρc_p/k)∂T/∂t = ∂²T/∂x²

Assuming that the slab is initially at a uniform temperature of 303 K, the initial condition can be written as:

T(x, 0) = 303 K, where 0 ≤ x ≤ D

The boundary conditions are:

(1) At the surface of the slab where it is exposed to hot gases at 623 K with a heat transfer coefficient of 65 W/ m² - K:

-k(∂T/∂x)|x=0 = h(T(0,t) - T_g)

where h is the heat transfer coefficient, T_g is the temperature of the hot gases (623 K), and the negative sign is because heat is being transferred from the slab to the gases.

(2) At the other surface of the slab, where it is not exposed to the hot gases and is insulated:

(∂T/∂x)|x=D = 0

(ii) To nondimensionalize the equation, we can introduce the following dimensionless variables:

θ = (T - T_g)/(T_i - T_g)

τ = αt/D²

ξ = x/D

where T_i is the initial temperature of the slab (303 K), α is the thermal diffusivity of the oak tree (α = k/ρc_p), and D is the thickness of the slab.

Using the chain rule, we can rewrite the heat diffusion equation in terms of these dimensionless variables:

ρc_p∂T/∂t = k∂²T/∂x²

(ρc_p/k)∂T/∂t = ∂²T/∂x²

(ρc_p/k)(T_i - T_g)∂θ/∂τ = (k/D²)(T_i - T_g)∂²θ/∂ξ²

(α/D²)∂θ/∂τ = ∂²θ/∂ξ²

Dividing both sides by α/D² and substituting the dimensionless variables, we get:

∂θ/∂τ = ∂²θ/∂ξ²

The initial condition becomes:

θ(ξ, 0) = 0, where 0 ≤ ξ ≤ 1

The boundary conditions become:

(1) At the surface of the slab where it is exposed to hot gases:

-∂θ/∂ξ|ξ=0 = Bi(θ(0,τ) - 1)

where Bi = hD/k is the Biot number, and the negative sign is because heat is being transferred from the slab to the gases.

(2) At the other surface of the slab, where it is insulated:

∂θ/∂ξ|ξ=1 = 0

These are the dimensionless form of the differential equation and boundary conditions that describe the temperature distribution with time and space across the slab.

The differential equation and the corresponding initial and boundary conditions to describe the temperature distribution with time and space across the slab is:

ρc_p ∂T/∂t = k ∂²T/∂x² + Q(x,t)

We can use the heat equation to describe the temperature distribution with time and space across the slab:

ρc_p ∂T/∂t = k ∂²T/∂x² + Q(x,t)

where

ρ is the density of the oak,

c_p is its specific heat capacity,

k is its thermal conductivity,

T is the temperature as a function of position x and time t, and

Q(x,t) is the heat generation rate per unit volume due to the heat from the hot gases.

The initial condition is:

T(x,0) = 303 K

This means that at the beginning of the fire, the temperature of the slab is initially at a uniform temperature of 303 K.

The boundary conditions are:

T(0,t) = T(D,t) = T_i

where

T_i is the ignition temperature of the oak (583 K).

This means that the surface of the slab is exposed to the hot gases at a temperature of 623 K, and the ignition temperature is reached when the temperature of the slab reaches 583 K.

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Answer:

La Comunión o la Cena del Señor es el partir y comer el pan para simbolizar el cuerpo de Cristo partido por nosotros y beber vino para recordar la sangre que derramó por nuestros pecados.

Explanation:

It is true that wt steel shape is produced by cutting a wide flange beam lengthwise in half.

A beam is a structural component that resists loads mostly applied laterally to its axis (an element designed to carry primarily axial load would be a strut or column). Its primary method of deflection is bending. Reaction forces are produced at the beam's support points as a result of the loads placed on it.

As a result of all the forces operating on the beam, internal stresses, strains, and deflections of the beam are caused by shear forces and bending moments within the beams. Beams differ from one another in terms of how they are supported, their profile (the form of their cross-section), equilibrium circumstances, length, and material.

Beams are typically used to describe structural elements in buildings or civil engineering when the beams are horizontal and support vertical loads.

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The compression ratio and the mean effective pressure is 1448.9 kpa.

What is pressure?
The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure (symbol: p or P). The pressure relative to the surrounding air is known as gauge pressure, also written gauge pressure. Pressure is expressed using a variety of units. Some of these come from dividing a unit of force by a unit of area; the standard unit of pressure inside the imperial and U.S. customary systems is the pound-force per square inch (psi), which is equivalent to one newton per square metre (N/m2) in the SI. The atmosphere (atm), which is equal to this pressure, and the torr, which is defined as 1760 of this, are two other ways to describe pressure.

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Yes, SQL statements have the ability to change the contents of a database.

The four most commonly used SQL statements that can change the contents of a database are SELECT, INSERT, DELETE, and UPDATE.
The SELECT statement retrieves data from one or more tables in the database. It allows you to specify the columns you want to retrieve, the table or tables you want to retrieve them from, and any filters or sorting you want to apply to the data.
The INSERT statement adds one or more rows to a table in the database. It allows you to specify the values for each column in the row or rows you are adding.
The DELETE statement removes one or more rows from a table in the database. It allows you to specify the conditions that determine which rows to delete.
The UPDATE statement modifies one or more rows in a table in the database. It allows you to specify the new values for each column in the row or rows you are updating, as well as the conditions that determine which rows to update.
As for interfaces, the following are all interfaces: Connection, Driver, ResultSet, and Statement.
A database interface is a layer of software that sits between an application and a database. It provides a set of functions or methods that the application can use to interact with the database.

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Answer:

Parasite drag and induced drag.

Answer:

i have actually been wondering this also. its a really great tool to have

Explanation:

Answer:

BRAINLY EXPERT✓

Explanation:

Initially called Zidane. pl, the company was founded in 2009 in Poland by Michał Borkowski (currently chief executive officer), Tomasz Kraus, and Łukasz Haluch. The first million unique monthly users were achieved within 6 months after the release.[5]

In January 2011, the company founded Znanija.com, the first international project dedicated to Russian language speakers.[6] Several other versions in multiple languages for the following markets included Turkey (eodev.com), Latin America and Spain (brain. lat), and Brazil (brainly.com.br).

The material engineer is in charge of evaluating the wear and tear of manufacturing process components.

Since the beginning of time, new materials have been essential to human development, prosperity, safety, and quality of life. They rank among the greatest achievements of every era. When it comes to civil, chemical, construction, nuclear, aeronautical, agricultural, mechanical, biomedical, or electrical engineering, new materials always open the door to new technologies.

Engineers and scientists who study materials are still at the forefront of numerous scientific fields. Every time we buy or use a new device, machine, or structure, materials science and engineering has an impact on our lives. Our list of recommended readings contains additional information about the impact of this exciting field.) A realization about every application of materials is what gives rise to the academic field of Materials Science and Engineering: The value of the material is determined by its characteristics. A material may be selected for its strength, electrical properties, heat or corrosion resistance, or a variety of other qualities; However, they all involve properties.

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