I'm so confused to this question
What is the difference between Science and Engineering? ​

Answer:

you have to think then go scratch and then calculate and the design  

Explanation:

The statistical analysis of a dataset inform a design process.

Statistical analysis is a kind of tool which helps collect and analyze large amounts of data. This is helpful to identify common patterns of dataset and make trends to convert them into meaningful information.

Designers do make use of statistical analysis of dataset in design process.

Analysis is a key part of design process.  Without analysis, nothing can be done in designing process.

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Answer:

339.4625

Explanation:

correct me if i am wrong

Answer:

  4

Explanation:

Two conductors form a loop for each part of the circuit, so if there is an open, the parts attached to the circuit will be fed from either end of the loop.

Four wires are required at the controller interface, and each device has 4 wires attached.

Structural steels are commonly specified according to various standards, depending on the country and region. The most widely used standards for specifying structural steels are:

ASTM (American Society for Testing and Materials): ASTM standards are widely accepted and used in the United States and many other countries. The ASTM A36 standard is a commonly referenced specification for structural steel.EN (European Norm): The European Norm standards, collectively known as EN, are widely used in Europe for specifying structural steels. Examples include EN 10025 for general structural steels and EN 10210 for hot-finished structural hollow sections.ISO (International Organization for Standardization): ISO standards are internationally recognized and utilized for specifying structural steels. ISO 630 series specifies general technical delivery conditions for structural steels.JIS (Japanese Industrial Standards): JIS standards are widely adopted in Japan and are also referenced in various other countries. JIS G3101 is a well-known standard for general structure hot-rolled steel.

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Answer:

- Ultrasound scanning system

- Magnetic Resonance Imaging (MRI)

- Computed tomography (CT)

- X - Ray scan

Explanation:

\(.\)

Answer:

- USS Ultarsound

- Medical sonography

The critical buckling load of an ideal column of circular cross section can be reduced by increasing the diameter of the column.

The critical load is known to be that factor that is labeled the greatest load that is one which is unable to cause lateral deflection (buckling).

Note that For loads greater than the critical load, the column will tend to decrease laterally. The critical load is known to be one that puts the column in what we call the state of an unstable form of equilibrium.

The critical buckling load is based  on the shape and dimensions of beam section that is said to have constant cross sectional area.

Hence, The critical buckling load of an ideal column of circular cross section can be reduced by increasing the diameter of the column.

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App locker handles all executables, installer packages, and scripts by default through a set of predefined rules and policies.

App locker, a security feature in Windows, is designed to manage access control for applications, scripts, and installer packages. It utilizes a set of predefined rules and policies that are defined by administrators to restrict or allow access to specific programs or scripts. These rules are created based on factors such as file location, digital signatures, publisher information, and more.

By default, App locker allows or denies access to files based on these predefined rules. Administrators can further customize these rules to provide more granular control over the applications and scripts that are allowed to run on Windows machines.

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Answer: Can not help

Explanation:

The term that describes the dominant organizations, institutions, groups, and processes of the pre-Internet era is "Core Crew."

Core Crew refers to a small, tight-knit group of people who were responsible for the creation, development, and maintenance of a particular project or organization. They were the experts and decision-makers, and they controlled the flow of information and resources. "Platform Crowd" refers to the decentralized, networked model of organization that emerged with the rise of the Internet and social media. It is characterized by the participation of a large, diverse group of users who contribute to the creation and dissemination of content and ideas.

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Answer:

answer is C. his seat belt

At room temperature the unit cell for this material is triclinic is 1 unit/cell.

In the problem statement we are given the following equation and information:

V = abc * sqrt(1 - cos^2 alpha - cos^2 beta - cos^2 gamma + 2cos alpha * cos beta * cos gamma)

= (0.497)(0.547)(1.729) √1 - cos2 48.4 - cos² 76.7 - cos² 62.5 + 2 cos 48.4 cos 76.7 cos 62.5

= 0.31n * m ^ 3

Next calculate the repeat unit weight for Nylon 6,6

m = 12A_{C} + 22A_{H} + 2A_{O} + 2A_{N}

= 12(12.01) + 22(1) + 2(16) + 2(14.01)

= 226.14g / m * ol

We can now calculate the number of repeat units per a unit cell. However we must convert V from n * m ^ 3 to c * m ^ 3 which results in V = 3.1 * 10 ^ - 22

n = (rho*VN)/m

= (1.213(3.1 * 10 ^ - 22)(6.02 * 10 ^ 23))/226.14

1 unit/cell.

The complete question is The density of totally crystalline nylon 6,6 at room temperature is 1.213g / c * m ^ 3 Also, at room temperature the unit cell for this material is triclinic with lattice parameters:

a = 0.497nm c = 48.4 deg

b = 0.547nm beta = 76.6 deg

c = 1.729nm y = 62.5 deg

If the volume of a triclinic unit cell, V tr i prime is a function of these lattice parameters as

V tri =abc sqrt 1-cos^ 2 a-cos^ 2 beta-cos^ 2 gamma+2 cos a cos beta cos gamma

determine the number of repeat units per unit cell.

Click on the link to access Table 4.3.

Atomic weights for several elements are included in the following table:

Carbon 12.01 g/mol

Chlorine 35.45 g/mol

Fluorine 19.00 g/mol

Hydrogen 1.008 g/mol

Oxygen 16.00 g/mol

Nitrogen 14.01 g/mol

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The dual problem of a linear programming problem can be found by flipping the inequality signs and re-assigning the objective function as a constraint.

Given the following linear programming problem min 4x1 - 3 x2 subject to 3x1 - x2 ≤ 6 5x1 - 4x2 ≥ 8 x1 - 6x2 =5 x1, x2 ≥ 0To find the dual of the problem, the following steps can be taken:

Step 1: Flip the problem The first step in finding the dual problem is to flip the inequality signs of the constraint of the original problem. The constraints of the original problem are as follows:3x1 - x2 ≤ 65x1 - 4x2 ≥ 8x1 - 6x2 = 5Flipping the inequality signs of the above equations results in the following:3x1 - x2 ≥ 65x1 - 4x2 ≤ 8x1 - 6x2 = 5

Step 2: Re-assign the objective The next step is to re-assign the objective function of the original problem as a constraint. That is, the coefficients of the original objective function are used as constraints in the dual problem. Thus, for the given problem,

we have:4x1 - 3x2 = x0Step 3: Formulate the dual problem The dual problem can now be formulated by using the re-assigned objective function and the flipped inequality signs of the original problem. The coefficients of the original problem form the new objective function of the dual problem, while the flipped inequalities form the constraints of the dual problem. Therefore, the dual problem of the given problem is: minimize 6y1 + 8y2 + 5y3, subject to:3y1 + 5y2 + y3 ≥ 4- y1 - 4y2 - 6y3 ≥ -3Where y1, y2 and y3 are the dual variables corresponding to the original constraints. Thus, the dual problem of the given problem has been found.

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Answer: total heat dissipated from the array is 0.60 Watt

Explanation:

No. of fins 8

Given that:

Wdth (b) = 3 mm = 0.003 m

thickness (t) = 0.4 mm = 0.0004 m

length (L) = 40 mm

combined convection and radiation heat transfer coefficient to be = 8.0 W/m² K.

Tb = 340 K, Tw = 300 K

First we compute for area of  fins A = 0.003 m × 0.00004 = 1.2 × 10⁻⁶ m²

Perimeter of Fin P = 2( 0.003 m + 0.00004 m ) = 0.0068 = 6.8 × 10⁻³  

for 2024 T6 aluminium alloy K = 151 W/m-k from table

Now

m = √ ( hp/ka) = √[( 8 × 6.8 × 10⁻³  ) / (151 × 1.2 × 10⁻⁶ m²)] = 17.327

Lc = L + t/2 = 40 + 0.4/2 = 40.2 mm = 40.2 × 10⁻³

Now heat transfer from on fin :

Q = √( hpKA) × (Tb-Tw) × Tanh(mLc)

= √( 8×6.8 × 10⁻³×151×1.2 × 10⁻⁶) × (340-300) × tanh (0.6965)

= 3.13963 × 40 × 0.602144

= 0.075620 Watt

So total heat dissipated from array of 8 fins = 8 ×0.075620 = 0.60 Watt

Answer:

Oregon had 19 railroad crossing accidents in 2018, up from 10 in 2013. Marion County has more than most counties, logging 28 since 2008.

Explanation:

It provides explicit guidance to improve railroad crossing safety to support ODOT’s mission of a safe and efficient transporta-tion network, but is not a policy plan. Rather, it is an action plan to help ODOT achieve greater railroad crossing safety.

To establish a suitable vertical alignment, the present level highway's 2115-foot length needs to be rebuilt.

The ground's gradient and vertical curves are both included in vertical alignment.

For above given example,

Calculating the maximum permitted gradient is possible.

\(G = (V^2) / (29.83R)\)

where, G is the gradient,

V is the design speed in mph.

R is the curvature's radius in feet.

\(G = (55^2) / (29.83 * 26)\)= 0.72%

Calculating the minimum viewing distance as:

\(S = 1.47Vt + 2.3(t^2) / (3.5K) (3.5K)\)

where t is the perception-reaction time in seconds, K is the coefficient of friction, and S is the minimum sight distance in feet.

The minimum sight distance can be estimated as follows using an assumption of a perception-reaction time of 2.5 seconds and a coefficient of friction of 0.3:

524.3 feet are equal to S = 1.47 x 55 x 2.5 + 2.3(2.52)/(3.5 x 0.3)

Now that we know how long the current level highway is,

The overpass's length and the sag curve's length are equal.

The following equation can be used to determine the length of the crest curve:

\(L = (S^2) / (8G)\)

where L is the length of the crest curve, S is the shortest sight distance, and G is the highest permitted gradient.

\(L = (524.3^2) / (8 * 0.0072) = 188,607.8 ft\)

The length of the sag curve, the length of the crest curve, and the length of the transition curves all make up the entire length of the level highway that needs to be rebuilt.

Assuming a 50-foot-long transition curve, we obtain:

Overall length is equal to 180 + 188,607.8 + (2 x 50) ft.= 2115 feet

Thus, the existing level highway measures 188,887.8 feet in length, which is equal to 2,265,853.6 inches or 2115 feet.

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Your question is incomplete, most probably the complete question is:

Due to crashes at railroad crossing, an overpass (with a roadway surface 26 ft above the existing road) is be constructed on an existing level highway. see illustration below. the existing highway has a design speed of 55 mi/hr. the overpass structure is to be level, centered above the railroad, and 180 ft long.

What is the length of the existing level highway must be reconstructed to provide an appropriate vertical alignment? assume that the sag and crest vertical curves are directly connected (i.e., there is no constant grade section).

We can compute the angle at e by using the fact that the sum of the interior angles of any polygon is equal to (n-2) times 180 degrees, where n is the number of sides of the polygon.

For a five-sided polygon, the sum of the interior angles can be found using the formula:

Sum of interior angles = (5-2) x 180 degrees = 540 degrees

We know the measurements of four of the interior angles:

a = 11736127
b = 96°32°50°
c = 142°54"36"
d = 132°18*24*

To find the measurement of the angle at e, we can subtract the sum of the other four angles from the total sum of the interior angles:

Angle at e = 540 degrees - (a + b + c + d)

Angle at e = 540 degrees - (11736127 + 96°32°50° + 142°54"36" + 132°18*24*)

We need to convert all the angle measurements to degrees:

a = 11736127 degrees
b = 96.5461 degrees
c = 142.9100 degrees
d = 132.3067 degrees

Angle at e = 540 degrees - (11736127 + 96.5461 + 142.9100 + 132.3067)

Angle at e = 540 degrees - 11736198.7528

Angle at e = -11735658.7528 degrees

This answer doesn't make sense because an angle cannot have a negative measurement. It's possible that one of the given angle measurements is incorrect or that we made an error in our calculations.

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The types of materials are best for preventing heat transfer through convection include the following:

In Science, there are three (3) main types of heat energy transmission and these include the following:

Convection can be defined as a heat energy transfer process which typically involves the transfer of heat, as a result of the movement of mass.

Based on scientific research and experiments, convection is generally considered to be a more effective and efficient means of heat transport on planet Earth when compared to conduction.

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The rated load of a crane should not exceed the original capacity specified by the manufacturer.

The original capacity specified by the manufacturer is a crucial reference point for determining the safe and maximum load that a crane can handle. Exceeding the original capacity can pose serious safety risks and potentially lead to accidents or damage to the crane and its surroundings. It is essential to adhere to the manufacturer's specified load limits to ensure the crane operates within its designed capabilities.

The original capacity specified by the manufacturer takes into account various factors such as structural integrity, mechanical components, stability, and safety factors. It undergoes rigorous engineering analysis and testing to determine the maximum load that the crane can safely handle in different operating conditions. The rated load is usually prominently displayed on the crane and specified in the crane's documentation, including manuals and load charts.

Exceeding the original capacity can overload the crane's structural components, strain the mechanical systems, compromise stability, and increase the risk of tipping or collapse. It can also lead to unpredictable behavior, loss of control, and failure of critical components. Therefore, it is vital to strictly adhere to the manufacturer's specified load limits and avoid exceeding the original capacity to ensure safe and reliable crane operations.

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Answer:

letter B

Explanation:

basta yan anwer

A caisson is a watertight enclosure that can be pumped dry so that construction activities, such as the construction of piers can take place. A caisson is a watertight structure or chamber, usually made of wood, metal, or concrete, that is sunk to the bed of a river, lake, or ocean to provide a foundation or support for a bridge, building, or other structure.

A caisson is constructed onshore and then floated to the location where it is to be sunk into the water. Once in place, water is pumped out of the caisson, and construction workers enter the dry chamber to begin work on the foundation or support structure. The use of caissons has been an important development in the construction of bridges and other structures in areas with deep water or unstable soils.

A foundation called a caisson is used in construction on soft or deep water. It involves filling a series of large, watertight cylinders with concrete and sinking them into the ground. The base serves as a solid foundation for any subsequent structures. The construction of large structures like bridges, docks, and caissons is common.

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The best tools for putting out a fire are an inverted beaker for tiny benchtop fires, a fire blanket for clothing fires, and a fire extinguisher for big floor fires.

Class A fires are those that involve solid objects, such wood, paper, or textiles. Class B fires are those caused by combustible liquids like gasoline, diesel, or lubricants. Gas fires are under class C. Metals-related fires fall under class D.

For use with fires involving common combustibles, flammable liquids, and powered electrical equipment, an extinguisher with just an ABC rating is appropriate. A symbol for each kind of hazard should be present on any extinguisher that is approved to be used with multiple hazards.

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Answer:

There are several places where you can buy water sensitive papers in the Philippines:

Scientific supply stores: Many scientific supply stores in the Philippines carry water sensitive papers. You can try searching for stores in your area that specialize in scientific equipment and supplies.

Online retailers: There are several online retailers in the Philippines that sell water sensitive papers. You can try searching for water sensitive papers on websites such as Lazada, Shopee, or Amazon.

Educational supply stores: Some educational supply stores in the Philippines may carry water sensitive papers. You can try searching for stores in your area that specialize in supplies for schools and universities.

Chemical supply companies: Some chemical supply companies in the Philippines may carry water sensitive papers. You can try contacting companies in your area to see if they have water sensitive papers available for purchase.

It is always a good idea to check the availability and price of water sensitive papers at multiple sources to find the best option for your needs.

Explanation:

Given values: Diameter of segment AC, d₁ = 0.5 in Diameter of segment CB, d₂ = 1 inLength of segment CB, L = 10 inUniform distributed torque along segment CB, t = 60 lb.in^(-1) Shear modulus of elasticity, G = 11 × 10³ ksi The formula for maximum shear stress τ is given as,τ = (t × r) / J …(1)

Here,r is the radius of the shaftJ is the polar moment of inertiaThe polar moment of inertia J is given as,J = (π / 2) × (d²₁ + d²₂) …(2 )

Now, substituting the given values in Equation (2), we haveJ = (π / 2) × (0.5² + 1²)J = 0.9817 in⁴

Therefore, substituting the values of t, r, and J in Equation (1), we have,τ = (60 × 0.5) / 0.9817τ = 30.55 psiThus, the absolute maximum shear stress in the shaft is 30.6 psi (approx) and the unit is psi. Therefore, option (c) is correct.

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Blockchain is often used often in the verification and locating of multistep transactions. One of the reasons to consider implementing a blockchain solution is the ability to work on different versions of the same data.

In Blockchain, all node can see all transactions that are taking place in the system and all will get a copy of each of them to update its data and approve it.

See full question below

What is one of the reasons to consider implementing a blockchain solution?

Options:

1.inability to track simultaneous updates by multiple users

2. ability to work on different versions of the same data

3.ability to verify that data has not been tampered with since its creation

4.inability to trace and access data of other users

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Answer:true

Explanation:

The quartiles divide a set of observations into four portions, each representing 25% of the observations, together with the minimum and maximum values of the data set. The interquartile range, a measurement of variation around the median, is calculated using quartiles.

Statistical file: {2, -6, 5}

Quartile Q1: -6

Quartile Q2: 2

Quartile Q3: 5.

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The flow rate in an ideal fluid is directly proportional to the square of the radius. Flow rate is directly proportional to the fourth power of the radius of a viscous fluid. When blood is assumed to be a non-viscous fluid, the flow rate is determined to be decreased by 25% because the radius is decreased by 50%.

However, if the blood is considered a viscous fluid, the flow rate is reduced by 94.6%.Explanation:The rate of flow of fluid is defined as the volume of fluid flowing through a given cross-section of the tube in unit time. In a pipe, the rate of flow is inversely proportional to the length of the pipe, whereas it is directly proportional to the cross-sectional area of the pipe.The formula for flow rate in an ideal fluid is given by:Q = Av where,Q= flow rateA= cross-sectional areav= velocity of fluidThus, if the cross-sectional area of the tube is reduced, the flow rate will also decrease. However, in a viscous fluid, the formula changes, and the flow rate becomes:Q = (π r^4∆P) / (8ηl)where,Q= flow rateA= cross-sectional area∆P= pressure gradientη= viscosity of fluidl= length of the pipeWhen a tube is 50% blocked, the radius decreases to half of its initial value. Thus, the cross-sectional area decreases to one-fourth of the initial value because the cross-sectional area is inversely proportional to the square of the radius.If the blood is non-viscous, the flow rate decreases by 25% because the radius decreases by 50%, which is half the initial value. If the blood is considered a viscous fluid, the flow rate decreases by 94.6% because the flow rate is directly proportional to the fourth power of the radius.

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