The 'parseInt' method of the 'Integer' class throws a 'NumberFormatException' when it is passed a String argument that it cannot convert to an int. Given the String variable s (which has already been assigned a value), write the code needed to convert the value in s assigning the result to the integer variable i

Answer:

57.14 N/mm2

Explanation:

The minimum required water cement ratio for a workable concrete is 0.40.

The water cement ratio is an important parameter in concrete mix design as it determines the workability and strength of the concrete. A lower water cement ratio generally results in higher strength but may lead to less workable concrete.

A higher water cement ratio may increase workability but can compromise the strength of the concrete. The range of water cement ratios varies depending on factors such as the type of cement, aggregate characteristics, and desired concrete properties. A water cement ratio of 0.40 is commonly used to achieve a balance between workability and strength.

It provides sufficient water for the hydration process while maintaining good workability for proper mixing, placing, and finishing of the concrete. Therefore, option B, 0.40, is the minimum required water cement ratio for a workable concrete mix.

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Answer:

Group dynamics can be understood as how team member's distinct roles and behaviours impact other group members and the group as a whole. Team dynamics are therefore the unconscious, psychological factors that influence the direction of a team's behaviour and performance.

Answer:

  C. 56.56 VAC

Explanation:

The meaning of "average" is unclear in this context.

If the waveform is sinusoidal, or any other symmetrical shape, its average value is zero.

If the waveform is a full-wave rectified sinusoid, its average value is 2/π times the peak, about 50.93 V.

If you are concerned with the RMS value (not the average), that is 1/√2 times the peak, about 56.57 VAC.

Your dryer's heating element, which consists of a metal chamber enclosing a coil of heating wire, will be present if it is electric. In the same way that electricity heats the wire, hot air also heats the chamber.

The cycle will still finish and the dryer will spin if the heating element isn't functioning properly, but it won't become hot enough to help dry the clothing. It is natural for heating elements to degrade with time.

They are used in conventional heating appliances like toasters and hair dryers, industrial furnaces for heating, floors, roofs, pathways for melting snow, dryers, etc.

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a. The 26th percentile of the software engineering manager salaries is approximately $111,417.

b. The 97.5th percentile of the software engineering manager salaries is approximately $171,417. The z-score for a salary of $170,000 is approximately 2.910, indicating that it is not considered an outlier based on the given standard deviation.

a. The 26th percentile can be found using the Empirical Rule. According to the Empirical Rule, in a mound-shaped and symmetric distribution, approximately 68% of the data falls within one standard deviation of the mean, 95% falls within two standard deviations, and 99.7% falls within three standard deviations. Since we know the mean base salary is $126,417 and the standard deviation is $15,000, we can calculate the value of the 26th percentile as follows:

First, calculate one standard deviation below the mean:

$126,417 - $15,000 = $111,417

Since the distribution is symmetric, the 26th percentile will be the same as the 74th percentile, which is one standard deviation below the mean. Therefore, the 26th percentile is approximately $111,417.

b. The 97.5th percentile can also be determined using the Empirical Rule. In this case, since 99.7% of the data falls within three standard deviations of the mean, we can calculate the value of the 97.5th percentile as follows:

First, calculate three standard deviations above the mean:

$126,417 + (3 * $15,000) = $171,417

Therefore, the 97.5th percentile is approximately $171,417.

c. To find the z-score for a salary of $170,000, we can use the formula:

z = (x - μ) / σ

Where x is the given salary, μ is the mean, and σ is the standard deviation. Plugging in the values:

z = ($170,000 - $126,417) / $15,000 ≈ 2.910

A z-score of 2.910 indicates that the salary of $170,000 is approximately 2.910 standard deviations above the mean. It is not considered an outlier based on the z-score alone. Typically, an outlier is defined as a data point that falls outside a certain range, often determined by a specified number of standard deviations from the mean. In this case, whether $170,000 is considered an outlier would depend on the specific criteria or threshold set for defining outliers.

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Why not simply include each step's setup instructions within it? is it due to our desire to maintain DRY (Don't Repeat Yourself) code?

Program testing is known as "unit testing" involves testing individual software components. When developing an application, unit testing is done on the software product. An individual component could be a technique or a specific function.

Unit testing's primary goal is to separate written code for testing to see if it functions as intended. Unit testing is a crucial stage in the development process because, when done properly, it can aid in finding early code issues that could be more challenging to identify in subsequent testing phases.

The core of the testing process consists of unit testing and functional testing. The primary distinction between the two is that during the development cycle, the developer conducts unit testing. The tester does functional testing at the system testing level.

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Answer:

The friction factor is 0.303.

Explanation:

The flow velocity (\(v\)), measured in meters per second, is determined by the following expression:

\(v = \frac{4\cdot \dot V}{\pi \cdot D^{2}}\) (1)

Where:

\(\dot V\) - Flow rate, measured in cubic meters per second.

\(D\) - Diameter, measured in meters.

If we know that \(\dot V = 0.01\,\frac{m^{3}}{s}\) and \(D = 0.05\,m\), then the flow velocity is:

\(v = \frac{4\cdot \left(0.01\,\frac{m^{3}}{s} \right)}{\pi\cdot (0.05\,m)^{2}}\)

\(v \approx 5.093\,\frac{m}{s}\)

The density and dinamic viscosity of the glycerin at 20 ºC are \(\rho = 1260\,\frac{kg}{m^{3}}\) and \(\mu = 1.5\,\frac{kg}{m\cdot s}\), then the Reynolds number (\(Re\)), dimensionless, which is used to define the flow regime of the fluid, is used:

\(Re = \frac{\rho\cdot v \cdot D}{\mu}\) (2)

If we know that \(\rho = 1260\,\frac{kg}{m^{3}}\), \(\mu = 1.519\,\frac{kg}{m\cdot s}\), \(v \approx 5.093\,\frac{m}{s}\) and \(D = 0.05\,m\), then the Reynolds number is:

\(Re = \frac{\left(1260\,\frac{kg}{m^{3}} \right)\cdot \left(5.093\,\frac{m}{s} \right)\cdot (0.05\,m)}{1.519 \frac{kg}{m\cdot s} }\)

\(Re = 211.230\)

A pipeline is in turbulent flow when \(Re > 4000\), otherwise it is in laminar flow. Given that flow has a laminar regime, the friction factor (\(f\)), dimensionless, is determined by the following expression:

\(f = \frac{64}{Re}\)

If we get that  \(Re = 211.230\), then the friction factor is:

\(f = \frac{64}{211.230}\)

\(f = 0.303\)

The friction factor is 0.303.

Strain is a unitless measurement that refers to the amount of deformation of an object as a result of an applied force or stress. The strain gauge is an electrical device that measures strain by detecting changes in electrical resistance. It is made up of a thin metal foil or wire that is bonded to a backing material, such as paper or plastic.

The principle of strain gauge is based on the fact that when a metal conductor is stretched, its resistance increases, and when it is compressed, its resistance decreases. The resistance change is proportional to the amount of strain that the gauge is exposed to. Therefore, by measuring the change in resistance, we can determine the amount of strain that the object has undergone. Strain gauges can be used to measure both tension and compression. When the strain gauge is under tension, the metal foil is stretched, causing it to become longer and thinner. This increases the resistance of the gauge. When the gauge is under compression, the metal foil is compressed, causing it to become shorter and thicker.

This decreases the resistance of the gauge.There are several types of strain gauges, each with its own unique application. Here are a few examples:• Linear strain gauges - used to measure uniaxial strain in one direction.• Rosette strain gauges - used to measure biaxial or triaxial strain in multiple directions.• Weldable strain gauges - designed to be welded directly to a metal surface.• Bolt-on strain gauges - attached to the surface of a bolt or other fastener to measure the strain on the joint.• Strain gauge load cells - used to measure force, weight, or torque.

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Answer:

  f(x) = x -3

Explanation:

Solve for y, then replace y by f(x).

  x - y = 3

  x - 3 = y . . . . . add y-3 to both sides

  f(x) = x -3

Answer:

(x) = x – 3

Explanation:

edge

A major reason for the projected shortage of trained craft professionals is that: b. technology has eliminated many construction careers.

Autonomic computing can be defined as a process which involves the use of both computer hardware and software to manage, analyze, and process, so as to complete a goal-oriented task.

Also, autonomic computing systems are self-managing and it is similar in operations with the autonomic nervous system in humans, and as such it can be used in construction projects and assembly lines for optimum automated production.

In conclusion, automation technology through robots, smart machines and computers has reduced the need for people in many jobs, including trained craft professionals.

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Answer:

installing large side mirrors

Explanation:

You can reduce your vehicle's blind spot by installing large side mirrors.

Check photos (2 pictures)

Answer:

d

Explanation:

yea

Answer:

D

Explanation:

In a bearing cage, the wheel flange is part of the axle, which is supported by a single bearing assembly (usually a ball or cylindrical roller bearing style) near the flange end of the axle.

A wheel hub bearing, hub assembly, wheel hub unit, or hub and bearing assembly, the wheel hub assembly is a crucial part of your steering system contributing to the safe steering and handling of your vehicle.

Most wheel bearing assemblies include the following components: an outer race, an inner race, roller bearings or ball bearings, and a bearing cage in order to hold the rollers or balls in place.

Ball bearings are rolling-element bearings that use balls to maintain the separation and distance between the bearing races. They are designed to reduce rotational friction while supporting both radial and axial loads.

Therefore, in a bearing cage, the wheel flange is part of the axle, which is supported by a single bearing assembly (usually a ball or cylindrical roller bearing style) near the flange end of the axle.

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Modern cars' complex systems perform all the foregoing functions, with the exception of assisting in the preservation of resale value.

Therefore, the answer is "helping retain resale value".

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Complete Question

Complete Question is attached below

Answer:

Option A

Explanation:

From the question we are told that:

inner Diameter of pipe \(d_i=100^c\)

Thickness \(t=50mm\)

Outer diameter of pipe \(d_o=1.1m\)

Length \(l=5m\)

Temperature \(T_i=130^oC\)

Generally the equation for Heat Balance is mathematically given by

\(q*\pi d_oL=mC_p(T_i-T_o)\)

Therefore

\(T_o=T_i+\frac{q*\pi d_oL}{mC_p}\)

\(T_o=130+\frac{100*3.142 *1.1*5}{0.5*4000}\)

\(T_o=129.136^oC\)

Therefore the exit temperature of the water.is \(T_o=129.136^oC\)

Option A

The majority of the energy used in a car comes from the chemical bonds within the gasoline.

When gasoline is burned with air in the engine, the chemical bonds are broken and energy is released in the form of heat. This heat then causes the pistons to move and generates energy to power the vehicle. The spark plugs provide the initial energy needed to ignite the gasoline and air mixture, but the main source of energy comes from the chemical reactions between the gasoline and air. In an automobile engine, when petrol burns, the heat produced causes the gases CO2 and H2O to expand, pushing the pistons outward. The cooling system of the car removes extra heat.

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Most of the energy in a car burning gasoline with air to make heat comes from the chemical bonds of the gasoline.

When gasoline is combusted with oxygen from the air, the energy stored in the chemical bonds is released and converted into heat energy that powers the car's engine. The spark plugs provide the initial ignition to start the combustion process, and the energy stored in the pistons of the engine is used to convert the heat energy into mechanical energy that moves the car's wheels.

However, the majority of the energy in this process is derived from the chemical bonds of the gasoline.

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Answer:

a building project...

Explanation:

The maximum velocity (u_max) in the parabolic laminar flow is 12 cm/s.

In the problem statement, it is given that the incompressible steady flow is uniform with u = U0 = 8 cm/s in the inlet.

Downstream, the flow develops into a parabolic laminar profile with u = az(z0 - z). The fluid is SAE 30 oil at 20°C, and z0 = 4 cm.

First, we need to find the dynamic viscosity of SAE 30 oil at 20°C. SAE 30 oil has a kinematic viscosity (ν) of approximately 300 cSt (centistokes) at 20°C.

To convert this to dynamic viscosity (μ), we need to multiply by the density (ρ) of the oil:

μ = ν * ρ

The density of SAE 30 oil is approximately 0.89 g/cm³ (890 kg/m³). Since 1 cSt is equal to 1 × 10⁻⁶ m²/s, the kinematic viscosity in SI units is 300 × 10⁻⁶ m²/s.

Now, let's convert the density to SI units:

ρ = 890 kg/m³ = 0.89 g/cm³

Thus, the dynamic viscosity (μ) can be calculated as follows:

μ = (300 × 10⁻⁶ m²/s) * (890 kg/m³) = 0.267 kg/(m*s)

Now, we need to find the maximum velocity (u_max) in the parabolic laminar flow, which occurs at the center of the plates (z = z0/2):

u_max = a * z0/2 * (z0 - z0/2)

Since the flow is incompressible, the mass flow rate (Q) remains constant throughout. We can equate the mass flow rate at the uniform flow (Q_inlet) with the mass flow rate at the parabolic flow (Q_parabolic):

Q_inlet = Q_parabolic

ρ * U0 * A_inlet = ∫[ρ * a * z * (z0 - z) * A_parabolic] dz

The area A_inlet and A_parabolic both can be represented as A = b * z, where b is the width of the parallel plates, and z is the distance between the plates.

Therefore, the equation simplifies to:

U0 * b * z0 = ∫[a * z * (z0 - z) * b] dz, with integration limits 0 to z0

U0 * z0 = ∫[a * z * (z0 - z)] dz, with integration limits 0 to z0

8 cm/s * 4 cm = a * ∫[z * (4 cm - z)] dz, with integration limits 0 to 4 cm

32 cm²/s = a * ∫[4z - z²] dz, with integration limits 0 to 4 cm

Now we can integrate and apply the limits:

32 cm²/s = a * [2z² - (1/3)z³] | (0 to 4 cm)

32 cm²/s = a * [(2 * 4² - (1/3) * 4³) - 0]

32 cm²/s = a * (32 - 64/3)

32 cm²/s = a * (32 - 21.33)

32 cm²/s = a * 10.67 cm²

Now we can solve for 'a':

a = 32 cm²/s / 10.67 cm² = 3 cm/s

Finally, we can find the maximum velocity (u_max) at the center of the plates

Now that we have the value of 'a' (3 cm/s), we can find the maximum velocity (u_max) at the center of the plates (z = z0/2):

u_max = a * z0/2 * (z0 - z0/2)

u_max = 3 cm/s * (4 cm)/2 * (4 cm - 4 cm/2)

u_max = 3 cm/s * 2 cm * 2 cm

u_max = 12 cm/s

Thus, the maximum velocity (u_max) in the parabolic laminar flow is 12 cm/s.

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The current in the incandescent bulb is approximately 0.625 Amperes (A).

An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation.

The amount of current in an incandescent bulb rated at 75W and 120V can be calculated using Ohm's Law, which states that current (I) is equal to power (P) divided by voltage (V).

Using this formula, the current can be calculated as:

I = P / V

I = 75W / 120V

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Answer:

The advantages of using a pure sine wave for your appliances and machinery are as follows: Reduces electrical noise in your machinery.

translates to no TV lines and no sound system hum.

Cooking in microwaves is quicker.

Explanation:

The smoothest signal is a sine wave, and sine waves are the basis of all functions.

Every other continuous periodic function is a basis function, which means that it can be described in terms of sines and cosines.

For instance, using the Fourier series, I can describe the fundamental Sinusoidal frequency and its multiples in terms of the triangle and square waves.

Answer:

See explanation.

Explanation:

Since no figure was given I solved a problem that was similar to the one you described that I worked in my mechanics of materials class. The method should be very similar for your figure. See attached image for my work.

If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.

We need to perform a two step process to obtain the maximum shear stress on the shaft. For the solid shaft,

P=2×pi×N×T/60 or T=60×p/2×pi×N

Where P=power transmitted by the shaft=50×10³W

N=rotation speed of the shaft in rpm=730rpm

Pi=3.142

T is the twisting moment

By substituting the values for pi, N and P, we get

T=654Nm or 654×10³Nmm

Also, T=pi×rho×d³/16 or rho=16×T/pi×d³

Where rho=maximum shear stress

T = twisting moment=654×10³Nmm

d= diameter of shaft= 40mm

By substituting T, pi and d

Rho=52Mpa

b. For a hollow shaft, the value for rho is unknown

T=pi×rho(do⁴-di⁴/do)/16

Rho=T×16×do/pi×(do⁴-di⁴)

Where

T= twisting moment=654×10³Nmm gotten above

do=outside shaft diawter=40mm

di= inside shaft diameter =30mm

Pi=3.142

Substituting values for pi, do, di and T.

Rho=76Mpa

Therefore, If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.

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The flap is used to lift the aircraft in the air as it provides them with balance.

The flaps' main function is to produce additional pull during decreased airspeed, therefore allowing the aircraft to fly at much low rpm with a reduced chance of crashing.

The flap is used to lift the aircraft in the air as it provides them with balance.

They are used for dragging the aircraft as it provides them with a certain amount of height with increases and lowers it.

The takeoff speed is slowed so relatedly to the flap as the change in the structure for the dynamic effect of the airspeed.

Flap reduces the takeoff distance as a smaller speed is being created, which reduces the feed with the coefficient of lift.

The class have a chamber it provides some hollow stairs through which they can store the good and services also it is sometimes used for oil storage.

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Answer:

is this a question for hoework