The kinetic energy correction factor for laminar flow in a circular pipe is:
A 1.23
B 1.54
C 2
D None of these

Answer:

1) 916 kg/m³

2) 9.8566×10⁴ Pa

Explanation:

1) Originally, the water is at the same level on both sides.  When the oil is added, one side goes down 67.5 mm and the other side goes up 67.5 mm.  The top of the oil is 12.3 mm above the water, so the total height of the oil relative to the low end of the water is:

12.3 mm + 67.5 mm + 67.5 mm = 147.3 mm

And the height of the water relative to the low end is:

67.5 mm + 67.5 mm = 135 mm

The pressure at the bottom of the oil equals the pressure of the water at the same elevation.

P = P

ρgh = ρgh

ρh = ρh

ρ (147.3 mm) = (1000 kg/m³) (135 mm)

ρ = 916 kg/m³

2) P = ρgh

P = (1.3608×10⁴ kg/m³) (9.7835 m/s²) (0.74035 m)

P = 9.8566×10⁴ Pa

Answer:

1.5 thats how long it is

Explanation:

good luck

Answer:

Your mass is the same no matter where you go in the universe; your weight, on the other hand, changes from place to place. Mass is measured in kilograms; even though we usually talk about weight in kilograms, strictly speaking it should be measured in newtons, the units of force

In summary, mass is a measure of how much matter an object contains, and weight is a measure of the force of gravity acting on the object. ... The amount of gravity is directly proportional to the amount of mass of the objects and inversely proportional to the square of the distance between the objects.

Explanation:

Answer:

100 N/ 400 N= .25

Explanation:

Answer:

-to defend territory

-to support allies

-to protect economic interests

Explanation:

100% on edge

A nation most likely uses military force-

To defend the nation and its population from immediate danger, military superiority contributes to the maintenance of peace and stability in areas crucial to national interests and finances international security commitments.

The current method used by countries to obtain emergency recruits during times of conflict is drafting. This act, known as conscription in medieval and ancient periods, frequently involved taking young boys against their will from their homes.

Most of the time, leadership is crucial. The Army upholds national laws, accomplishes national goals, and prevents any nation's aggressive actions in order to maintain peace.

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Answer:

water seeks its own level

Answer:

water

Explanation:

Answer:

b. biologucal

Explanation:

it is b. biologucal

The etiology of somatoform disorders may consist of all the following except biological. Option B is correct.

Somatoform disorder,is a mental health illness in which a person experiences physical symptoms as a result of psychological discomfort.

Family with a negative or anxious personality are more likely to acquire somatoform illnesses.

The etiology of somatoform disorders may consist of all the following except biological.

Hence,option B is correct.

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Answer:

The time taken for the paint ball to hit the ground is \(t = 2.143 \ s\)

The distance of the landing point from the tower is \(d = 192.86 \ m\)

Explanation:

From the question we are told that

   The height of the tower is \(h = 45 \ m\)

    The speed of the paintball in the horizontal direction is  \(v_x = 90 \ m/s\)

Generally from kinematic equation we have that

      \(h = ut + \frac{1}{2} at^2\)

Here u is the initial  velocity of the paintball in the vertical direction and the value is 0 m/s , this because the ball was fired horizontally

         a is equivalent to \(g = 9.8\ m/s^2\)

        t is the time taken for the paintball to hit the ground

   So    

       \(45 = 0* t + \frac{1}{2} 9.8 * t^2\)

=>    \(t = 2.143 \ s\)

Generally the distance of its landing position from the tower is

         \(d = v * t\)

=>      \(d = 90 * 2.143\)

=>    \(d = 192.86 \ m\)

The vectors are said to be equal if they have same magnitude as well as same direction.

In case of C and G,

The direction of both the vectors are same but the magnitude of G is more than C.

Thus, C and G are not equal vectors.

In case of E and D,

Both the vectors have opposite direction to each other and the magnitude of D is more than E.

Thus, E and D are not equal vectors.

In case of B and C,

Both the vectors have same direction but the magnitude of C is more than the magnitude of B.

Thus, B and C are not equal vectors.

In case of A and H,

Both the vectors have same direction and both the vectors cover three boxes, thus, the magnitude of the vectors is same.

Hence, A and H are equal vectors.

Answer:

do explain what u need help with?

"Yes, the electronic crime scene is handled completely differently from a traditional crime scene. The electronic crime scene refers to a crime that has taken place in the digital world.

In contrast, a traditional crime scene refers to a crime that has taken place in the physical world, and it is evident that the two scenarios are handled differently.

An electronic crime scene refers to the area or place where electronic evidence is gathered for use in investigations or legal proceedings. Electronic evidence refers to information or data stored, created, or transmitted in electronic devices, including computers, smartphones, flash drives, and other digital devices. The collection of electronic evidence differs significantly from the collection of traditional evidence. The first step is the preservation of electronic evidence. In a traditional crime scene, it is possible to cordon off the area using yellow tapes, close windows, and take photographs of the scene. However, this is not the case with an electronic crime scene since electronic evidence is intangible. This is why digital forensic investigators begin the evidence preservation process by creating a forensic image of the electronic device under investigation. This is done to prevent data loss or alteration before investigations commence.

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Answer:

This is what the Ecological Footprint does: It measures the biologically productive area needed to provide for everything that people demand from nature: fruits and vegetables, meat, fish, wood, cotton and other fibres, as well as absorption of carbon dioxide from fossil fuel burning and space for buildings and roads.

Why it's useful:

Ecological footprint (EF), measure of the demands made by a person or group of people on global natural resources. It has become one of the most widely used measures of humanity’s effect upon the environment and has been used to highlight both the apparent unsustainability of current practices and the inequalities in resource consumption between and within countries.

Scientific experiments follow principles called the scientific method that ensure that accurate tests are performed, reliable results are collected, and reasonable conclusions are drawn. Scientific experiments must follow the basic principles of good research so that the final presented results can be believed to be reliable.

Observations of new physical processes or phenomena occur infrequently, but there are areas of science that are not fully understood. Scientists must verbalize their observations in order to formulate meaningful hypotheses.

It's not enough to just guess why something happens. Scientists must prove their theories to be correct. Predictions are made to test observations under different circumstances. The aim is to learn more about this phenomenon and prove its existence. One of his ways of improving the scientific method is by creating 'models'. Models can be used to infer difficult and unobservable concepts.

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Answer:

Change in internal energy AU = 40 J

Explanation:

Given:

Amount of heat added = 70 J

Work done = 30 J

Find:

Change in internal energy AU

Computation:

The net thermal conductivity into a process less the net work performed by the system represents the shift in internal energy.

Change in internal energy AU = Q - W

Change in internal energy AU = 70 J - 30J

Change in internal energy AU = 40 J

Answer:

force, displacement & cause.

Explanation:

there must be a displacement and the force must cause the displacement.

i hope this helps you ahh

Solar panels have several advantages over other solar energy systems. Here are some of the reasons why solar panels are more advantageous:

Efficiency: Solar panels are highly efficient in converting sunlight into electricity. They use photovoltaic (PV) technology, which directly converts sunlight into electricity without any mechanical processes. This efficiency allows solar panels to generate more electricity per unit of sunlight compared to other solar energy systems.

Versatility: Solar panels can be installed on various surfaces, such as rooftops, building facades, and open spaces. They can be integrated into the existing infrastructure without significant modifications. This versatility makes solar panels suitable for both residential and commercial applications.

Scalability: Solar panels are modular, meaning that multiple panels can be easily connected to form larger arrays. This scalability allows solar panel systems to be customized according to the energy needs of a particular location. Additional panels can be added as energy demands increase.

Longevity: Solar panels have a long lifespan, typically ranging from 25 to 30 years or more. With proper maintenance, they can continue to generate electricity for several decades. This longevity makes solar panels a reliable and cost-effective investment.

Environmentally Friendly: Solar panels produce clean and renewable energy, reducing dependence on fossil fuels and greenhouse gas emissions. By utilizing solar energy, we can contribute to mitigating climate change and promoting sustainable development.

Lower Operating Costs: Solar panels have minimal operating costs once installed. Unlike other solar energy systems that may require additional equipment or complex maintenance, solar panels generally require only periodic cleaning and inspections.

While other solar energy systems, such as concentrated solar power (CSP) or solar thermal systems, have their own advantages in specific applications, solar panels offer a compelling combination of efficiency, versatility, scalability, longevity, environmental benefits, and lower operating costs, making them more advantageous in many situations.

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Mass is how heavy is an object is

The maximum mass that a helicopter winch can lift is 204 kg.

In order to maximize the effectiveness and safety of winching operations, the winch is mounted on the aircraft's side facing the pilot. The winch cable is 90 meters long, and it can handle a maximum load of 600 pounds or 272 kilograms.

Winches have a 2000 N lifting capacity. The formula W = mg, which equals weight in newtons, mass in kilograms, and gravity's acceleration in meters per second squared, or 9.8 m/s2, can be used to convert it to mass.

W = mg

2000 N = m * 9.8 m/s^2

m = 2000 N / 9.8 m/s^2

m = 204 kg

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The full question is

A rescue helicopter lifts two people using a winch and a rescue ring. The mas of the two people is 120 kg. The winch is capable ofexerting a 2000-N force. What is the maximum mass it can lift?

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(k = \frac{1}{2} m {v}^{2} \\ \)

m is the mass

v is the velocity

From the question we have

\(k = \frac{1}{2} \times 40 \times {0.6}^{2} \\ = 20 \times 0.36 \\ = 7.2\)

We have the final answer as

Hope this helps you

Ursa Major is now the object that is closest to the zenith. Using this date and time as a reference, set the star wheel finder to 8 p.m. on April 24. The northern sky contains the constellation Ursa Major.

Its mythology is believed to have prehistoric roots. Its Latin name, which contrasts it with nearby Ursa Minor, the lesser bear, is "greater (or larger) bear." The zenith is a hypothetical point on the celestial sphere that is situated directly "above" a specific location. "Above" refers to a direction that is parallel to the ground and counter to the direction of gravity there (nadir). The celestial sphere's "highest" point is called the zenith.

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The assertion is accurate. 600/3 Determine the gridlines' spacing first; keep in mind that Traces World is 400 pixels by 400 pixels.

The complete question is:

600/3 the first thing you'll need to go is determine the spacing of gridlines remember traces world is 400 pixels x 400 pixels true/false

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Answer:

D. OJ

Explanation:

Answer:

A mineral has a volume of 6 mL and a mass of 12g.

Explanation:

Was this right?

If a star is moved twice as far away, it would appear one-fourth as bright.

The apparent brightness of a star depends on its distance and the inverse square law. According to the inverse square law, the brightness of an object decreases as the square of its distance increases. If a star is moved twice as far away, its distance from the observer would be doubled.

Applying the inverse square law, the brightness would decrease by a factor of four (2^2). This means the star would appear one-fourth as bright as before. The amount of light reaching the observer decreases as the distance increases, leading to a decrease in apparent brightness. Therefore, moving a star twice as far away reduces its apparent brightness to one-fourth of its original value.

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✔ First calculating the speed :

V = d(in m)/t(in s)

✔ You now know the average car's speed, is time it takes to stop it completely, so you can calculate its acceleration :

a = V/t

The equation for energy in the context of fluid dynamics, specifically in Computational Fluid Dynamics (CFD), is typically represented by the conservation of energy equation, also known as the energy equation or the first law of thermodynamics. The equation can be expressed as:

ρ * (du/dt + u * ∇u) = -∇p + ∇⋅(μ * (∇u + (∇u)^T)) + ρ * g + Q

where:

ρ is the density of the fluid

u is the velocity vector

t is time

∇u represents the gradient of velocity

p is the pressure

μ is the dynamic viscosity

g is the gravitational acceleration vector

Q represents any external heat source/sink

The physical meaning of energy in CFD is the total energy of the fluid system, which includes kinetic energy (associated with the motion of the fluid), potential energy (associated with the elevation of the fluid due to gravity), and internal energy (associated with the fluid's temperature and pressure). The energy equation describes how this total energy is conserved and transformed within the fluid system.

In CFD simulations, the energy equation plays a crucial role in modeling the energy transfer, heat transfer, and flow characteristics within the fluid. It helps in understanding how energy is distributed, dissipated, and exchanged within the fluid domain. By solving the energy equation numerically, CFD simulations can predict temperature profiles, flow patterns, heat transfer rates, and other important parameters that are essential for various engineering applications, such as designing efficient cooling systems, optimizing combustion processes, and analyzing thermal behavior in fluid flows.

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The  semi-major axis of an elliptical planetary orbit is equal to the distance between the planets and the Sun at aphelion.

The term semi major axis refers to a half of the of the distance from middle of an ellipse to another end of the ellipse.

Recall that the solar system has the sun at the center if the ellipse. Hence, the  semi-major axis of an elliptical planetary orbit is equal to the distance between the planets and the Sun at aphelion.

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Answer:

40

Explanation: 1 hour and 15 min is 1.25 hour.

50km   -->    1.25 h

x km     -->    1 h

50 km * 1h = x km*1.25h

x = 40 average speed of car is 40

Answer:

A.

Explanation:

Thats my answer

Please make me branlies answer