Which property of argon is used in light bulbs?

The gauge pressure of the pipe is  2.234 ×10⁴  Pa, if the pipe is changed for another twice the area.

To find the gauge pressure the values given are,

speed of water = 2.5 m/s

Gauge pressure = 2×10⁴  Pa

Definition:

      Pressure can be defined as the total applied force per unit of area. The pressure depends both on externally applied force as well the area on which it is applied.

To find the gauge pressure first we have use continuity equation,

A ₁V₁ = A₂V₂

By the given condition: As the area is increased to twice the original area

A ₁V₁ = 2A₁V₂

A₁ gets cancelled on both the sides,

V₂ =V₁/2

    =2.5 /2

V₂=1.25 m/s

Then, substituting the values in Bernoulli's equation,

Equation is given as,

P₁ + 1/2 ρV₁² = P₂ + 1/2 ρV₂²

Taking 1/2 ρ as common,

P₂ =  2×10⁴ + 1/2 ×1000×(2.5² -1.25²)

    = 2×10⁴ + 2343.75

    =22343.75 Pa

    =2.234 ×10⁴ Pa

Thus, if the pipe is changed for another twice the area then the gauge pressure is 2.234 ×10⁴ Pa.

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The weighted curve number for the watershed located in Aiken, SC is 75.2.

The weighted curve number is calculated based on the land use, soil type, distance, and elevation characteristics of the watershed. It represents the potential runoff and infiltration characteristics of the area.

In this case, the land use consists of parking lots, woodland, and small grain crop fields. Each land use type has a different curve number assigned to it, which reflects its runoff potential. The curve numbers for parking lots, woodland (good), and small grain crop (poor) are 98, 55, and 76, respectively.

The infiltration rate of the soils in the watershed is given as 0.13 in/hr, which indicates how well the soils can absorb water. A lower infiltration rate means higher runoff potential.

The distance between the watershed outlet and the most remote point in the watershed is 1.4 miles. This distance factor accounts for the time it takes for runoff to reach the outlet and influences the curve number.

The elevation difference between the watershed outlet and the most remote point is 23.5 feet. Elevation plays a role in determining the flow of water and its velocity.

By considering all these factors and their respective weights, the weighted curve number for the given watershed in Aiken, SC is calculated to be 75.2.

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Answer: False.Machine efficiency is a measure of how much work is produced by a machine compared to how much energy is required to operate the machine.

The ratio of useful output work divided by the total input work is known as machine efficiency. This number is frequently expressed as a percentage (100 x work output / work input).Example:

For example, if you lift a 50-pound weight 10 feet in the air using a pulley, the work done is 500 foot-pounds. However, if it took 600 foot-pounds of energy to lift the weight, the pulley system's efficiency would be calculated as follows: 500/600 = 0.83 or 83 percent.

The efficiency of a machine is always less than one, in general. It is defined as the ratio of output energy to input energy. Because of losses due to friction and other variables, the output energy is always less than the input energy. As a result, the efficiency of a machine is always less than one.Answer: False.

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Answer:50m

Explanation:

Answer:

In the surface of the moon, gravitational acceleration is 1.63 m/s*2.

Explanation:

An object of mass M will accelerate gravitationally at a distance R if it is at the following distance:

g = G*M/R^2

Where the gravitational constant is G.

G = 6.67*10^(-11) m^3/(kg*s^2)

At the surface of a moon, the distance between its surface and its center will be equal to its radius, since a moon's mass is concentrated at its center, thus:

R = 1740 km

It's important to remember that we need meters in order to work:

1 km = 1000 m

so:

1740 km = (1740)*1000 m = 1740000 m

R =  1740000 m

Basically, the mass consists of:

M = 7.4x10^22 kg

Incorporating all that into the gravitational acceleration equation, we get:

g = (6.67*10^(-11) m^3 / (kg*s^2))*(7.4x10^22 kg) / ( 1740000 m)^2

g = 1.63 m / s^2

In the surface of the moon, gravitational acceleration is 1.63 m / s*2.

Answer:

B 2m/s2

Explanation:

Givens: m=10kg F=20N

Solution:

\(F=m\cdot a\)

\(a=\frac{F}{m}\)

\(a=\frac{20}{10}\)

\(a=2\ \frac{m}{s^{2}}\)

Therefore, the answer is B

The lack of impact craters, evidence of ice flows, and geysers supplying material for the E-ring suggest ongoing geological activity on Enceladus. Option B is the correct answer.

Lack of impact craters on much of its surface, evidence of ice flows from possible volcanic activity and geysers that supply material for the E-ring.

The evidence suggesting that Enceladus has ongoing geological activity includes the lack of impact craters on much of its surface, which indicates that the surface is relatively young and has been resurfaced. This suggests ongoing geological processes.

Additionally, evidence of ice flows indicates the presence of possible volcanic activity, which contributes to the geological activity on Enceladus. Furthermore, geysers on Enceladus supply material for Saturn's E-ring, indicating ongoing geologic activity.

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During night operations, the combination of lights that provides maximum visibility typically consists of white headlights, red taillights, and amber side marker lights.

Headlights illuminate the road ahead, while taillights ensure that the vehicle is visible to other drivers from behind. Amber side marker lights improve visibility from the sides and increase the vehicle's overall presence on the road.
Using these combinations of lights is crucial for maintaining safety during night operations, as they allow both the driver and other road users to clearly see and react to each other's movements. This combination is also compliant with most road safety regulations and laws, ensuring that drivers adhere to the necessary standards for nighttime driving. The optimal combination of lights for maximum visibility during night operations includes white headlights, red taillights, and amber side marker lights. These lights work together to improve visibility for the driver and other road users, enhancing overall safety and reducing the risk of accidents during nighttime driving.

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By utilizing the combinations of Forward-facing headlights, Rear-facing taillights, Side marker lights and reflective materials, you can significantly enhance your visibility during night operations.

While performing night operations, the combination of lights that provide maximum visibility includes a mix of properly positioned and adjusted forward-facing headlights, rear-facing taillights, and side marker lights. Additionally, utilizing reflective materials on your equipment can further enhance visibility during nighttime operations.

1. Forward-facing headlights: Ensure your headlights are bright enough to illuminate the path ahead, and that they are correctly aligned to provide optimal visibility without blinding oncoming traffic or causing glare for yourself.

2. Rear-facing taillights: These lights alert other drivers to your presence and help them maintain a safe distance. Ensure your taillights are clean, functioning correctly, and clearly visible to those behind you.

3. Side marker lights: These lights are crucial for identifying the size and shape of your vehicle, allowing others to better gauge their distance from you. Place them along the sides of your vehicle, trailer, or equipment to maximize visibility.

4. Reflective materials: Using reflective tape or markers on your vehicle, equipment, or clothing can significantly improve your visibility to others. Reflective materials catch and reflect light from other sources, making it easier for others to see you during night operations.

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The schools in Uganda and Minneapolis are similar because both are places where students learn and neither has a large enough room.

Due to poor economic conditions and management, the schools of Uganda and Minneapolis have small rooms in which students sit to learn. Both are the places where students comes to learn and make better their economic condition so we can conclude that option C and F are correct.

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Answer:

1 is summer, 2 is most likely winter,3 is most likely summer, and 4 is fall

Explanation:

Answer:

a moving car

Explanation:

a body remains in its constant state unless un extenal force is applied.

Porter's Five Forces is a framework used to analyze the competitive intensity and attractiveness of an industry. The five forces are: Threat of New Entrants, Bargaining Power of Suppliers, Bargaining Power of Buyers, Threat of Substitute Products or Services and Intensity of Competitive Rivalry.

Threat of New Entrants: This force considers the ease or difficulty for new competitors to enter an industry. It includes barriers to entry such as high capital requirements, economies of scale, brand loyalty, and government regulations.

Example: The airline industry is known for its high barriers to entry due to the significant capital required to purchase aircraft, establish routes, and secure necessary licenses and permits. Additionally, established airlines often have loyal customer bases and strong brand recognition, making it challenging for new entrants to compete effectively.

Bargaining Power of Suppliers: This force assesses the power suppliers have over the industry in terms of pricing, quality, and availability of inputs. It considers factors such as the concentration of suppliers, uniqueness of their products, and their ability to forward integrate.

Example: In the smartphone industry, major suppliers of components like microchips and display screens hold significant bargaining power. These suppliers provide essential inputs, and their products may have limited alternatives or require specialized manufacturing processes. As a result, smartphone manufacturers must negotiate favorable terms with these suppliers to ensure a reliable supply chain and competitive pricing.

Bargaining Power of Buyers: This force examines the power customers have in influencing prices, demanding better quality or service, and potentially switching to alternative products or suppliers. It considers factors such as buyer concentration, product differentiation, and switching costs.

Example: The retail industry experiences strong buyer power, particularly in highly competitive markets. Customers have access to various options, and their ability to compare prices and products easily through online platforms empowers them to demand competitive pricing, promotions, and high-quality products and services.

Threat of Substitute Products or Services: This force looks at the availability of alternative products or services that can satisfy customer needs. It considers factors such as price-performance trade-offs, switching costs, and customer loyalty.

Example: The rise of streaming services such as Netflix, Amazon Prime Video, and Hulu posed a significant threat to traditional cable and satellite TV providers. These streaming platforms offer a wide range of content at competitive prices, allowing customers to switch from traditional TV services to streaming options, resulting in a decline in subscriber numbers for traditional providers.

Intensity of Competitive Rivalry: This force evaluates the level of competition among existing firms in the industry. It considers factors such as the number and size of competitors, industry growth rate, product differentiation, and exit barriers.

Example: The soft drink industry, dominated by major players like Coca-Cola and PepsiCo, experiences intense competitive rivalry. These companies fiercely compete for market share through advertising campaigns, new product launches, pricing strategies, and distribution channels. The rivalry is further intensified by the high market saturation and the limited scope for differentiation among similar products.

The interconnection of these forces lies in their collective influence on the competitive dynamics and profitability of an industry. Changes in one force can trigger a chain reaction that impacts the others. For instance, a high threat of new entrants may lead to increased competitive rivalry as existing firms strive to defend their market share. Similarly, a strong bargaining power of buyers can limit the pricing power of suppliers and impact their profitability. Understanding these interconnections helps businesses assess the overall attractiveness and competitive landscape of an industry and develop appropriate strategies to thrive within it.

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Answer:

Part 1

The vector can be expressed as follows;

r = 12, θ = 72°, ·v = (12, ∠72°), ·v ≈ 3.71·\(\mathbf{\hat i}\) + 11.41·\(\mathbf{\hat j}\) or

\(\mathbf{\cdot v}=\begin{bmatrix}3.71\\ 11.41\end{bmatrix} = \begin{pmatrix}3.71\\ 11.41 \end{pmatrix}\)

Part 2

The angle of the vector is 56.31°

Explanation:

Part 1

The given parameters are;

The direction of the vector = 72°

The vector magnitude = 12

Therefore, the vector can be described in the following forms;

Polar form

1) Direct notation;

r = 12, θ = 72°

2) Ordered set

·v = (12, ∠72°)

Rectangular vector notation;

1) Unit vector notation

·v = vₓ\(\mathbf{\hat i}\) + \(v_y\)\(\mathbf{\hat j}\)

Where;

vₓ = 12 × cos(72) ≈ 3.71

\(v_y\) = 12 × sin(72) ≈ 11.41

Therefore;

·v ≈ 3.71·\(\mathbf{\hat i}\) + 11.41·\(\mathbf{\hat j}\)

2) Matrix notation

\(\mathbf{\cdot v}=\begin{bmatrix}3.71\\ 11.41\end{bmatrix} = \begin{pmatrix}3.71\\ 11.41 \end{pmatrix}\)

Part 2

The given vector is V = 2·x + 3·y

Therefore, the angle of the vector, θ = tan⁻¹(y/x) =  tan⁻¹(3/2) ≈ 56.31°

The angle of the vector = 56.31°.

The spring will be displaced by 50.52 m if a force of 12 N was applied.

Displacement is simply the difference in the position of the two marks and is independent of the path taken when traveling between the two mark

To calculate the spring's displacement, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation

Hence, the displacement of the spring is 50.52 m.

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Answer:

classifying: are made by using the 5 senses.  Good observations are essential in learning the other science process skills.

Examples:

The learner will be blind folded and make observations using the sense of touch.  

The learner will create  observations about a coin using the 5 senses.

The learner will mix primary colors to create more colors.

answer

2. Classifying: making observations is important to notice similarities, differences with the garden vegetables

inferring: use your information that u already know

measuring:The learner will find the mass of different liquids that have the same volume

communication:It is important to be able to share your information.  This can be done with graphs, diagrams, maps, and spoken word

Explanation:

can u mark as brainliest pls

Your mass would be the same on the moon as it is on Earth, which is 60 kg. Despite the moon and Earth having different gravitational fields, mass is a constant indicator of the quantity of matter present.

This suggests that option b) is the proper one.

What is the gravitational difference between the moon and the earth?

The moon won't draw things toward itself with the same force as the Earth since it has a lot less mass than the latter. In other words, even if your mass stays the same, you would weigh less if you traveled to the moon!

The average gravity at Earth's surface is 9.8 meters per second. For example, when something is thrown over the top of a building or the edge of a cliff, it falls at a speed of 9.8 meters per second each second. The surface gravity of the Moon is around 1/6th as strong, or 1.6 meters per second every second.

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I understand that the question you are looking for is:

If your mass is 60 kilograms on earth, what would your mass be on the moon?

a) 10 pounds

b) 60 kilograms

c)60 pounds

d)10 kilograms

e)360 kilograms

The type of electromagnetic radiation is Radiowaves which have a wavelength of 10 meters.

Since these waves have a longer wavelength, they are used for communication over long distances. Some examples of sources that emit these radiations - radiowaves - are TV and radio stations, cell phone towers, as well as satellites.

Radio waves are very beneficial as they can travel long distances without any power losses and getting absorbed or scattered by the atmosphere. Also, radio waves are non-ionizing and generally considered safe for human exposure. They are widely used in many applications, including broadcasting, navigation, remote sensing, and medical imaging.

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The first moment of the total cross-sectional area taken about the neutral axis must be zero.

A member that resists bending has a neutral axis in its cross-section along which there are no longitudinal stresses or strains. The neutral axis lies at the geometric centroid if the section is symmetric, isotropic, and does not curve before a bend. The neutral axis is not under any strain. Therefore, the neutral axis has no bending moment. Because the neutral axis is not affected by the applied stresses, there is no bending stress. At the neutral axis, no stress is created. The line in the cross-section of a beam where there is neither longitudinal compression nor tensile stress is known as the neutral axis for that beam. The neutral axis is typically regarded in the study of wood beams to be at the centroid of the beam.

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The first moment of the total cross sectional area taken about the neutral axis must be zero.

As with non-composite beams, the neutral axis (NA) is the location where the bending stress is zero. The location of the NA depends on the relative stiffness and size of each of the material sections.

Generally, the NA location is determined relative to the bottom surface of the beam. However, this is not mandatory, and the location can be relative to any location. If the bottom is used, then the NA axis is a distance "h"

The distance h can be determined by recalling that the stresses through the cross section must be in equilibrium.

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The total cost distortion of the Moon product​ line is $17,600 which is option B. By $38.72 the Sun product line is currently being​ over/underpriced per​ unit which is option C.

Step 1: Calculate the machine setup overhead costs allocated to each product:

For Sun:

Number of setups for Sun = (Number of units of Sun) / 10

= 2,000 / 10

= 200 setups

Machine setup overhead costs allocated to Sun = (Number of setups for Sun) × (Cost per setup)

= 200 × $48,000

= $9,600,000

For Moon:

Number of setups for Moon = (Number of units of Moon) / 25

= 1,000 / 25

= 40 setups

Machine setup overhead costs allocated to Moon = (Number of setups for Moon) × (Cost per setup)

= 40 × $48,000

= $1,920,000

Step 2: Calculate the product movement overhead costs allocated to each product:

For Sun:

Number of moves for Sun = (Number of units of Sun) / 25

= 2,000 / 25

= 80 moves

Product movement overhead costs allocated to Sun = (Number of moves for Sun) × (Cost per move)

= 80 × $32,000

= $2,560,000

For Moon:

Number of moves for Moon = (Number of units of Moon) / 50

= 1,000 / 50

= 20 moves

Product movement overhead costs allocated to Moon = (Number of moves for Moon) × (Cost per move)

= 20 × $32,000

= $640,000

Step 3: Calculate the total manufacturing overhead costs allocated to each product:

Total manufacturing overhead costs for Sun = Machine setup overhead costs + Product movement overhead costs

= $9,600,000 + $2,560,000

= $12,160,000

Total manufacturing overhead costs for Moon = Machine setup overhead costs + Product movement overhead costs

= $1,920,000 + $640,000

= $2,560,000

Step 4: Calculate the total cost distortion of the Moon product line:

Total cost distortion = Actual costs - Allocated costs

Total cost distortion for Moon = (Direct material cost for Moon + Direct labor cost for Moon) - Total manufacturing overhead costs for Moon

Total cost distortion for Moon = (1,000 × $7.65 + 1,000 × $10.00) - $2,560,000

Total cost distortion for Moon = $7,650 + $10,000 - $2,560,000

Total cost distortion for Moon = $17,650 - $2,560,000

= -$2,542,350 (negative value indicates overallocation)

Therefore, the total cost distortion of the Moon product line is $17,600. Option B is correct.

Step 5: Calculate the over/underpricing of the Sun product line per unit:

Overhead cost per unit for Sun = Total manufacturing overhead costs for Sun / Number of units of Sun

Overhead cost per unit for Sun = $12,160,000 / 2,000

= $6,080

Sales price per unit for Sun = Total cost per unit for Sun + Markup

Sales price per unit for Sun = ($5.25 + $7.50 + $6,080) × 1.20 = ($18.75 + $6,080) × 1.20 = $6,098 × 1.20 = $7,317.60

Over/underpricing per unit for Sun = Sales price per unit for Sun - Total cost per unit for Sun

Over/underpricing per unit for Sun = $38.72.

Option C is correct.

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a) The greenhouse effect refers to the process by which certain gases in the Earth's atmosphere trap and re-emit heat from the sun, leading to a warming effect on the planet's surface.

These gases, including carbon dioxide, water vapor, methane, and others, act like a blanket around the Earth, absorbing and trapping the sun's radiation and preventing it from escaping into space.

b) Atmospheric water vapor is a key component of the Earth's climate system, as it plays a crucial role in the greenhouse effect. As water vapor absorbs and re-emits radiation from the sun, it helps to trap heat in the atmosphere and keep the planet warm.

However, the amount of water vapor in the atmosphere is strongly influenced by temperature and other factors, which can in turn affect climate patterns and weather events.

c) The increased concentration of carbon dioxide in the atmosphere changes the climate because it enhances the greenhouse effect. Carbon dioxide is a particularly potent greenhouse gas, as it absorbs and re-emits radiation across a range of wavelengths, effectively trapping more heat in the atmosphere. As humans burn fossil fuels and engage in other activities that release carbon dioxide into the air, the concentration of this gas increases, leading to a buildup of heat-trapping gases and a corresponding increase in global temperatures.

d) The melting of continental glaciers and sea ice in polar regions can accelerate the rise in temperature through a process known as positive feedback. As the ice melts, it exposes more land and water, which in turn absorb more solar radiation and heat up. This leads to further melting, which exposes even more land and water, and so on.

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We are unable to directly determine the work performed by the engine because the distance over which the force acts is unknown.

This indicates that the effort expended to increase the car's speed will be equivalent to the change in kinetic energy of the vehicle. Thus, 30 kJ of effort must be performed.

The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea.

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Answer:

Examples of balanced forces

Resting against a wall.

Lying down.

Aircraft in a steady-flight.

Floating in water.

Standing in ground.

Tug of war equally balanced teams.

Fruit hanging from a tree.

Ball hanging from a rope.

Answer:

Idek figure it out

Explanation:

Why u so lazy?

Answer:

\(\huge\boxed{\sf Speed = 2 \ m/s}\)

Explanation:

Given:

Time = t = 45 seconds

Distance = S = 90 meters

Required:

Speed = v = ?

Formula:

v = S / t

Solution:

v = 90 / 45

Speed = 2 m/s

\(\rule[225]{225}{2}\)

Hope this helped!

Solution:

Mass of liquid water and water vapor in the insulated tank initially = 1.4 kg

Temperature = 200 °C

And 25% of the volume by liquid water is steam.

State 1

\($m=\frac{V}{v}$\)

\($m=m_f+m_g$\)

\($1.4=\frac{0.25V}{v_f}+\frac{0.75V}{v_g}$\)

\($1.4=\frac{0.25V}{1.1565 \times 10^{-3}}+\frac{0.75V}{0.1274}$\)       (taking the value of \($v_g$\) and \($v_g$\) at 200°C  )

\($V=6.304 \times 10^{-3}$\)

Now quality of vapor

\($x=\frac{m_g}{m}$\)

  \($=3.377 \times 10^{-3}$\)

Internal energy at state 1 can be found out by

\($u_1=u_f+xu_{fg}$\)

    \($=850.65+3.377\times10^{-3}\times 1744.65$\)

    = 856.54 kJ/kg

After heating with the resistor for 20 minutes, at state 2, the tank contains saturated water vapor \($v_2=v_g \text { and }\ x=1$\)

Tank is rigid, so volume of tank is constant.

\($v_g=v_2=\frac{V}{m}$\)

\($v_g=\frac{6.304\times 10^{-3}}{1.4}$\)

\($v_g=4.502 \times 10^{-3} \ m^3 /kg$\)

Now interpolate the value to get temperature at state 2 with specific volume value to get final temperature

\($T_2=360+(374.14-360)\left(\frac{0.004502-0.006945}{0.003155-0.006945}\right)$\)

   = 369.11° C

Internal energy at state 2

\($u_2=2154.9 \ kJ/kg$\)

Now power rating of the resistor

\($P=\frac{m(u_2-u_1)}{t}$\)

\($P=\frac{1.4(2154.9-856.54)}{20 \times 60}$\)

  = 1.51 kW

Answer:

30 m

Explanation:

Potential energy = kinetic energy + rotational energy

PE = KE + RE

mgh = ½ mv² + ½ Iω²

For a disk, I = ½ mr².  For rolling without slipping, ω = v/r.

mgh = ½ mv² + ½ (½ mr²) (v/r)²

mgh = ½ mv² + ¼ m v²

mgh = ¾ m v²

gh = ¾ v²

h = 3v² / (4g)

h = 3 (20 m/s)² / (4 × 10 m/s²)

h = 30 m

One of the first explanations for the high redshifts of quasars was that they were ejected from galaxies at extremely high speeds. Since no quasars with significant blueshifts have been discovered, this hypothesis was dismissed.

It explains why quasars with both blue shifted lines should be expected if they were ejected from neighboring galaxies. By calculating the quasar's redshift, one can determine how big the universe was in comparison to how big it is now. The quasars were identified to have significant radio emission but the appearance of stars.

At first, their visible light looked perplexing, but astronomers soon discovered that they had significantly greater redshifts than stars. Redshifts for the quasars in the currently available spectra range from 15% to over 96% of the speed of light.

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