What is computer programming

Answer:

the diameter of the stand pipe is 24.456mm

Explanation:

Given that:

Height of the soil sample = 90 mm

Cross section area of the soil sample = 6000 m²

The head fell from 500 mm to 300 mm

i,e

\(H_1 = 500 \ mm\)

\(H_2 = 300 \ mm\)

Time = 1500 s

The permeability of the soil (K) was 2.4x10⁻³ mm/s.

The objective is to determine the diameter of the stand pipe. (in mm)

Using the formula :

\(K = \dfrac{(2.303 )*a*L}{A*t} log(\dfrac{H_1}{H_2})\)

\(2.4*10^{-3}= \dfrac{(2.303 )*a*(90)}{(6000 )*(1500 )} log(\dfrac{500}{300 })\)

\(2.4*10^{-3}= \dfrac{(207.27 *a)}{9000000} *0.22185\)

\(2.4*10^{-3}*9000000= (207.27 *a)}*0.22185\)

21600 = 45.983 a

a = 21600/45.983

a = 469.74 mm

Recall thar:

a = π/4 (d²)

So;

469.74  = 0.7854 ((d²)

d² = 469.74/0.7854

d² = 598.09

d = √598.09

d = 24.456 mm

Hence ; the diameter of the stand pipe is 24.456mm

Answer:

but the way is the way but the WAY is not the way

Explanation:

(yoda voice)

Answer:

umm am i supposed to be laughing?

Explanation:

sorryyy idk what yoda sounds like cuz i think star wars is pretty wack, just my opinion tho so dont get offended

Given:P = 12 kPaρ = 0.182 kg/m³V = 760 m/sA₂ = 53 cm² = 0.0053 m²(a) Upstream throat area The mass flow rate of fluid through the nozzle is given byρ₁A₁V₁ = ρ₂A₂V₂This equation is known as the mass continuity equation.

So, A₁ = (ρ₂/ρ₁)(A₂)(V₁/V₂)A₁ = (0.182/ρ₁)(0.0053)((1130/760))A₁ = (0.182/0.182)(0.0053)(1.4868)A₁ = 0.00784 m²(b) Stagnation TemperatureTotal temperature in the flow (also known as stagnation temperature) is given by the following equation:T₀ = T + (V²/2*Cp)WhereT₀ = stagnation temperatureT = static temperature V= velocityCp = specific heat at constant pressureUsing the ideal gas law, we can determine the static temperature from the given values.ρ = P/(R*T)T = P/(ρ*R)T = 12,000/(0.182*287)T = 234.89 KNow, Cp = (7/2)*R = 29.1 J/mol KSo, T₀ = 234.89 + (760²/(2*29.1))

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The sounds heard during the first phase of blood-pressure measurement are called the Korotkoff sounds.

The kind of sound that is bern heard during blood pressure is Korotkoff sounds which are produced underneath the distal half of the blood pressure cuff.

The sounds can be noticed when cuff pressures are between systolic and diastolic blood pressure.

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A solid line around a component indicates that the component is complete. A dashed line around the component indicates that the component is being shown is not complete.

Answer:

-Computer going blank .

-Mouse pointer freezing.

-Keyboard getting stuck.

Explanation:

Any problems with the computer related to its hardware will consist of issues directly related to the physical components of the PC or computer. So any problem involving the physical component of the computer, then it can be termed as a hardware problem.

Based on the problems given in the option, the hardware issues will be problems with the computer, mouse, and keyboard. These form the physical parts of the computer so they will be a hardware issue.

Thus, the correct answers are the third, fourth, and fifth options.

Answer:

c d e

Explanation:

Directly proportional.

As the inductive reactance is directly proportional to the frequency, by increasing the frequency the inductive reactance of the inductor increases.

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By using the boundary layer equation, the average heat transfer coefficient for the plate is equal to 4.87 W/m²k.

Given the following data:

Surface temperature = 15°C

Bulk temperature = 75°C

Side length of plate = 150 mm to m = 0.15 meter.

Since we have a quiescent room air and a uniform pole surface temperature, the film temperature is given by:

\(T_f=\frac{T_{s} + T_{\infty} }{2} \\\\T_f=\frac{15 + 75 }{2} \\\\T_f = 45\)

Film temperature = 45°C to K = 273 + 45 = 318 K.

For the coefficient of thermal expansion, we have:

\(\beta =\frac{1}{T_f} \\\\\beta =\frac{1}{318}\)

From table A-9, the properties of air at a pressure of 1 atm and temperature of 45°C are:

Next, we would solve for the Rayleigh number to enable us determine the heat transfer coefficient by using the boundary layer equations:

\(R_{aL}=\frac{g\beta \Delta T l^3}{v\alpha } \\\\R_{aL}=\frac{9.8 \;\times \;\frac{1}{318} \;\times \;(75-15) \;\times \;0.15^3 }{1.750 \times 10^{-5}\; \times \;2.416 \times 10^{-5} } \\\\R_{aL}=\frac{9.8\; \times 0.00315 \;\times \;60\; \times\; 0.003375 }{4.228 \times 10^{-10} }\\\\R_{aL}=1.48 \times 10^{7}\)

Also take note, g(Pr) is given by this equation:

\(g(P_r)=\frac{0.75P_r}{[0.609 \;+\;1.221\sqrt{P_r}\; +\;1.238P_r]^\frac{1}{4} } \\\\g(P_r)=\frac{0.75(0.7241)}{[0.609 \;+\;1.221\sqrt{0.7241}\; +\;1.238(0.7241)]^\frac{1}{4} }\\\\g(P_r)=\frac{0.543075}{[0.609 \;+\;1.221\sqrt{0.7241}\; +\;1.238(0.7241)]^\frac{1}{4} }\\\\g(P_r)=\frac{0.543075}{[2.5444]^\frac{1}{4} }\\\\g(P_r)=\frac{0.543075}{1.2630 }\)

g(Pr) = 0.430

For GrL, we have:

\(G_{rL}=\frac{R_{aL}}{P_r} \\\\G_{rL}=\frac{1.48 \times 10^7}{0.7241} \\\\G_{rL}=1.99 \times 10^7\)

Since the Rayleigh number is less than 10⁹, the flow is laminar and the condition is given by:

\(N_{uL}=\frac{h_{L}L}{k} = \frac{4}{3} (\frac{G_{rL}}{4} )^\frac{1}{4} g(P_r)\\\\h_{L}=\frac{0.02699}{0.15} \times [\frac{4}{3} \times (\frac{1.99 \times 10^7}{4} )^\frac{1}{4} ]\times 0.430\\\\h_{L}= 0.1799 \times 62.9705 \times 0.430\\\\h_{L}=4.87\;W/m^2k\)

Based on empirical correlation method, the average heat transfer coefficient for the plate is given by this equation:

\(N_{uL}=\frac{h_{L}L}{k} =0.68 + \frac{0.670 R_{aL}^\frac{1}{4}}{[1+(\frac{0.492}{P_r})^\frac{9}{16}]^\frac{4}{19} } \\\\h_{L}=\frac{0.02699}{0.15} \times ( 0.68 + \frac{0.670 (1.48 \times 10^7)^\frac{1}{4}}{[1+(\frac{0.492}{0.7241})^\frac{9}{16}]^\frac{4}{19} })\\\\h_{L}=4.87\;W/m^2k\)

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Then  you go to find the system requirements are the D. None of these as none of it dictates about the  find the system requirements hen needed.

User necessities describe what the person ought to do . System necessities describe how will the person acquire person necessities while interacting with the device plus nonpurposeful necessities such as "the device ought to cope with one hundred thousand customers on the identical time". So: User requirement : The person ought to see their check results.Where is device necessities.

For packaged products, device necessities are regularly imprinted on the packaging. For downloadable products, the device necessities are regularly indicated at the download page. System necessities may be widely categorized as purposeful necessities, records necessities, pleasant necessities and constraints.

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Answer:

In the case of the production Line, we know that,

No of gasoline cans = 5

probability that 1st can is out of tolerance = 0.03

probability that 2nd can is out of tolerance = 0.03

.

.

probability that the 5th can is out of tolerance = 0.03

Therefore,

probability of 1st can out of tolerance + probability of 1st can not out of tolerance = 1

Probability of 1st can not out of tolerance = 1 -- 0.03 = 0.97

probability of 2nd can not out of tolerance = 0.97

.

.

probability of 5th can not out of tolerance = 0.97

Question A:

Probability that they are all out of tolerance

= P(1st can out of tolerance) * P(2nd can out of tolerance) * P(3rd can out of tolerance) * P(4th can out of tolerance) * P(5th can out of tolerance)  

= (0.03 ) * (0.03) * (0.03) * (0.03) * (0.03) =  2.43 E⁻⁸   (2.43 ˣ 10⁻⁸)

Question B:

Probability that exactly two are out of tolerance

= P(1st can is out of tolerance) * P(2nd can is out of tolerance) * P(3rd can is not out of tolerance) * P(4th can is not out of tolerance) * P(5th can is not out of tolerance)

= (0.03) * (0.03) * (0.97) * (0.97) * (0.97) = 0.0008214057

Explanation:

While changing a soil's basic texture is very difficult, you can improve its structure–making clay more porous, sand more water retentive–by adding amendments. The best amendment for soil of any texture is organic matter, the decaying remains of plants and animals.

Answer:

the function of the regulator in a power supply:-

A voltage regulator is a component of the power supply unit that ensures a steady constant voltage supply through all operational conditions. It regulates voltage during power fluctuations and variations in loads. It can regulate AC as well as DC voltages.

Explanation:

(❁´◡`❁)

Answer:-
The power of regulators to grant significant benefits to, or impose restrictions or penalties on, members of the public – and the extra profits to be gained from avoiding regulations – increases the risks of corruption. Regulators also have a role in collecting and protecting government revenue.

The option which is not a property of the metal aluminium is; Option B;  is resistant to galvanic corrosion

Aluminum is a non - ferrous metal that is lightweight, durable, malleable and corrosion-resistant (not galvanic) which is widely used for components in the transportation and construction industries. Its's properties includes;

From all the listed properties and explanations, it is clear that the only option among those given that is not a property of aluminum is Option B

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The best option in the above scenario is to: "Use proxy servers to mask Internet activities" (Option C)

Note that Proxy servers act as intermediaries between the user's device and the Internet, allowing the user to access websites and online content while hiding their IP address. This can help to protect the organization's IP address from being compromised, as the proxy server's IP address will be the one that is visible to the websites being accessed.

One must realize that using a network-based firewall, IDS, or packet-filtering firewall would not be suitable for this purpose, as these types of security measures are designed to protect the network rather than to mask the activities of individual users.

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Answer:

(a)Tb = 330.12 K (b)Tc =304.73 K (c)19.81 K/m (d) h =60.65 W/m². K

Explanation:

Solution

Given that:

The mass flow rate of engine oil m = 1.81 x 10^-3 kg/s

Diameter of the tube, D = 1cm =0.01 m

Electrical heat rate, q =76 W/m

Wall Temperature, Ts = 370 K

Now,

From the properties table of engine oil we can deduce as follows:

thermal conductivity, k =0.139 W/m .K

Density, ρ = 854 kg/m³

Specific heat, cp = 2120 J/kg.K

(a) Thus

The wall heat flux is given as follows:

qs = q/πD

=76/π *0.01

= 2419.16 W/m²

Now

The oil mean temperature is given as follows:

Tb =Ts -11/24 (q.R/k) (R =D/2=0.01/2 = 0.005 m)

Tb =370 - 11/24 * (2419.16 * 0.005/0.139)

Tb = 330.12 K

(b) The center line temperature is given below:

Tc =Ts - 3/4 (qs.R/k)= 370 - 3/4 * ( 2419.16 * 0.005/0.139)

Tc =304.73 K

(c) The flow velocity is given as follows:

V = m/ρ (πR²)

Now,

The The axial gradient of the mean temperature is given below:

dTb/dx = 2 *qs/ρ *V*cp * R

=2 *qs/ρ*[m/ρ (πR²) *cp * R

=2 *qs/[m/(πR)*cp

dTb/dx = 2 * 2419.16/[1.81 x 10^-3/(π * 0.005)]* 2120

dTb/dx = 19.81 K/m

(d) The heat transfer coefficient is given below:

h =48/11 (k/D)

=48/11 (0.139/0.01)

h =60.65 W/m². K

The initial conditions do not affect the natural frequency of a bar. The factors that affect the natural frequency of a bar are material stiffness (Young's modulus), material density, and boundary conditions (b.c.).

The initial conditions, on the other hand, refer to the initial state of the bar, such as its initial displacement or velocity, when it is subjected to an external force or disturbance. These initial conditions may determine the amplitude or phase of the bar's vibrations but do not impact its natural frequency.

The natural frequency of a bar is primarily determined by its material properties, specifically the material stiffness and material density. Material stiffness, represented by the Young's modulus, indicates how resistant the material is to deformation. A stiffer material will have a higher natural frequency compared to a less stiff material. Material density, on the other hand, affects the mass distribution of the bar and can influence its natural frequency.

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The given statement "A circuit is defined as a completed path for voltage to flow from a source of voltage through a load and back to the source" is false because it overlooks an essential component of a circuit, which is the requirement for a closed loop or pathway for electric current to flow.

In reality, this statement is false. A circuit is actually defined as a closed loop or pathway that allows electric current to flow. It typically consists of various components such as a voltage source (such as a battery or power supply), conductive pathways (such as wires), and loads (such as light bulbs or resistors) that consume the electrical energy. The current flows through the circuit in a continuous loop, returning to the source to complete the circuit.

However, the original statement is incorrect in stating that the voltage itself completes the circuit. Voltage is the potential difference between two points in a circuit, which causes the electric current to flow. Without a complete circuit, voltage alone cannot result in the flow of current.

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When a marble is known to rolls on a track, it is one that is said to have kinetic energy (due to its motion) as well as potential energy (that is due to its position which is said to be relative to some reference point).

The potential energy of the marble is one that is based on its height that is seen above the reference point. The higher the marble is  said to be above the reference point, the  higher potential energy it has.

Therefore, If the track is shifted to go up the height of the marble and when it is above the reference point, the potential energy of the marble is one that will go up.

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The tari's total standard machine-hours allowed for last year's output 600,000 hours

Budgeted at start of year:  $100,000 fixed manufacturing overhead  for 500,000 machine hours

Standard = $100,000 / 500,000 hours = $0.2 fixed overhead / maching hour

At end of year, manufacturing overhead volume was $20,000 favorable which means

$20000 / $1=0.2 = 100000 additional hours.

Total Standard Machine Allowance Allowed for output = 500,000 + 100,000 = 600,000 hours.

the use of one machine running for an hour as a basis for cost estimation and operating effectiveness evaluation. In order to determine the contribution margin per machine hour for a specific product: a. Total cost per unit divided by the quantity of machine hours required to produce each unit of the target product. The manufacturing overhead cost divided by the activity driver yields the predetermined overhead rate. For instance, if machine hours were the activity driver, you would divide overhead costs by the anticipated number of machine hours.

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An interference fit is a design principle used in engineering where the dimensions of two parts are chosen so that one part will always be pressed against the other.

A ball bearing has been selected with the bore size specified in the catalog as 39 mm to 39.02 mm. To provide a locational interference fit, the minimum and maximum shaft diameters need to be determined.

The diameter of the ball bearing can vary from 39 mm to 39.02 mm. The minimum diameter of the shaft should be 39.02 mm because the ball bearing has the maximum bore diameter of 39.02 mm. This will create a tight fit between the shaft and the ball bearing. The maximum diameter of the shaft should be 39.04 mm because this is the maximum clearance that can be provided while maintaining a locational interference fit.

Therefore, the minimum and maximum shaft diameters that would provide a locational interference fit with the ball bearing having a bore size specified as 39 mm to 39.02 mm are 39.02 mm and 39.04 mm.

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The term that is not designed to absorb collision energy is dimples.

What is an energy-absorbing mechanism?

Energy-absorbing mechanism is a safety mechanism that absorbs the kinetic energy that is generated during an impact.

The shock-absorbing material, which is intended to be compressed in a controlled manner under the impact, is the most basic component of this system.

What is the purpose of the design of a crush zone?

Crush zones are engineered areas of a vehicle that are designed to absorb and dissipate energy during a collision.

They are often constructed from a variety of materials, including high-strength steel, aluminum, magnesium, and other composites.

O Slots, crush zones, and reinforcements are all safety features that are designed to absorb collision energy and lessen the impact of a collision on the vehicle and its occupants.

These energy-absorbing mechanisms allow the vehicle to deform or collapse in a controlled manner, slowing down the rate of deceleration and reducing the amount of force transferred to the vehicle's occupants.

Dimples, on the other hand, are not an energy-absorbing mechanism.

Dimples are tiny indentations or bumps on the surface of a material that is often used to reduce aerodynamic drag. They are not designed to absorb collision energy.

Therefore, the answer is dimples.

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Matter can be defined as anything (physical object or body) that has mass and takes up space. Thus, the mass of a physical object measures the amount of matter the object contains.

In Science, water is an example of matter and it exists in three (3) main states or phases such as the following:

Based on scientific records and information, we know that all particles have various degrees of attraction to one another and this can be described as follows:

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Complete Question:

A student is investigating the particles in a glass window, raindrops on the window, and the air around the window. Assume the window, raindrops, and the air are all at 25 degrees Celsius. Identify the particle structure in each sample of matter.

Answer: true

Explanation:

The sampling technique that can be used to selecting the participants will be a random sampling.

It should be noted that sampling simply a method in statistical analysis that predetermined observations are taken from the population.

In this case, the sampling technique that can be used to selecting the participants will be a random sampling. This is need to give everyone an equal chance of being selected.

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Answer:

Soap and water

Explanation:

   then report the injury....

In an electric field, a capacitor is a device that stores electrical energy. It has two terminals and is a passive electrical component. Capacitance refers to a capacitor's effect.

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Answer:

genorator- electrical to mechanical

motor- mechanical to electrical

When answering questions on the platform Brainly, as a question-answering bot, one should always be factually accurate, professional, and friendly. Being concise and not providing amounts of detail is crucial.

Even though ignoring any typos or irrelevant parts of the question is important, it is recommended to read the entire question and provide an answer accordingly.As per the given question:At what rate is the flywheel spinning when the power comes back on?The angular acceleration is given as 10 rad/s^2 and the initial velocity is 5 rad/s. The time for which the angular acceleration acts is 3 seconds.Let’s solve this problem step by step:Initially, the flywheel is rotating at an angular velocity of 5 rad/s.At time t = 0, we can find the initial angular velocity (ω₀) = 5 rad/s.And, the final angular velocity can be determined by the following equation,ω = ω₀ + αtwhereα = angular acceleration, t = timeSubstituting the values, we get,ω = 5 + (10 x 3) = 35 rad/sTherefore, the rate at which the flywheel is spinning when the power comes back on is 35 rad/s.

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