Q: How do fuses work? Why are they necessary?

The friction heads for the two different pipelines are 3.92 m and 6.29 m, respectively.

Friction head refers to the pressure drop caused by the flow of fluid through a pipeline due to the resistance offered by various components such as valves, fittings, and pipe walls. To calculate the friction heads for the given flow rate of 1.5 m³/min in two different pipelines, we need to consider the characteristics and dimensions of each pipeline as well as the properties of the fluid being transported.

In the first pipeline (Pipeline 1), which consists of D₁ = D₂ = 2" Sch 40 commercial stainless-steel pipe with a length of L₁ = 100 m, the following components are present: 1 globe valve fully open, 2 gate valves open, 2 Tees, and 3 90° elbows. Using the provided information, we can determine the resistance coefficients for each component and calculate the friction head.

In the second pipeline (Pipeline 2), which also consists of D₁ = D₂ = 2" Sch 40 commercial stainless-steel pipe but has a longer length of L₂ = 200 m, the components present are: 1 globe valve fully open, 2 gate valves open, 4 Tees, and 2 90° elbows. Similarly, we can determine the resistance coefficients and calculate the friction head for this pipeline.

The given properties of the fluid, including its density (ρ = 1,100 kg/m³) and viscosity (μ = 1.2 x 10³ Pa s), are necessary to calculate the friction heads using established fluid mechanics equations.

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I think its "a dropped penny sinks at the bottom of a pond". Because, non-contact force is a force that you don't touch, like gravity or weight, that falls but you didn't drop it on purpose nature did or gravity itself did.

The amount of work done by the ideal gas is 2475J.

The magnitude of the work done when a gas expands is therefore equal to the product of the pressure of the gas times the change in the volume of the gas.

w=−PΔV

The negative sign associated with the above equation indicates that the system loses energy. If the volume increases at constant pressure (ΔV > 0), the work done by the system is negative, indicating that a system has lost energy by performing work on its surroundings.

According to this question, an ideal gas initially at 50.0m³ at 1000.0 Pa expands to a volume of 300.0 m³ after heating. The work done can be calculated as follows:

W = -P∆V

W = - (0.0099 × {300000L - 50000L)

W = - (0.0099 × 250000)

W = 2475J

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Answer:

We stay hugely we devour

Explanation:

It's the rock

Answer:

323 m.

Explanation:

The frequency is 640 kHz.

(wavelength) = =

We will now change 640KHz to Hz. This is attainable as follows:

1 KHz = 1000 Hz

Therefore,

640 KHz is equal to 640 KHz 1000 Hz / 1 KHz.

640 kHz = 64×10⁴ Hz

As a result, 640KHz is equal to 64025 Hz.

The following equation connects a wave's wavelength () and frequency (f):

Wavelength x Frequency = Velocity

v = λf

The radio wave wavelength can be calculated using the formula above as follows:

Frequency (f) equals 64 to 104 Hz

The electromagnetic wave's (v) speed is 3 x 108 m/s.

(wavelength) = =

v = λf

3×10⁸ = λ × 64×10⁴

By 64025, divide both sides.

λ = 3×10⁸ / 64×10⁴

λ = 487m

Consequently, the radio wave's wavelength is 487 m.

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ANSWER:

$ 12177

STEP-BY-STEP EXPLANATION:

We must calculate the area of the playground, knowing that the area is equal to length times width, like this:

Now, knowing the area, we can calculate the total cost, like this:

The resurfacing cost is $ 12177

Answer: Because The spectra provided evidence to explain why the sun's atmosphere is so much hotter than its surface. ... Clear evidence now suggests that the heating mechanism depends on regular, but intermittent explosive bursts of heat, rather than on continuous gradual heating.

Explanation:

The light ray will travel approximately 0.708 cm inside the glass before emerging on the far side.

When light travels from one medium to another, its path is bent due to the change in the refractive index of the mediums. In this case, the light ray is traveling from air to glass. The angle of incidence is given as 41 degrees.

To find the distance the light ray travels inside the glass, we can use the formula for the distance traveled by a light ray inside a medium:

d = t * tan(θ)

Where:

d is the distance traveled inside the medium (glass),

t is the thickness of the medium (1.6 cm), and

θ is the angle of incidence (41 degrees).

However, we need to account for the refractive index of the glass, which is given as 1.5. The angle of incidence is measured with respect to the normal, while the angle of refraction (angle between the light ray and the normal inside the glass) can be found using Snell's Law:

n₁ * sin(θ₁) = n₂ * sin(θ₂)

Where:

n₁ is the refractive index of the initial medium (air),

θ₁ is the angle of incidence,

n₂ is the refractive index of the second medium (glass), and

θ₂ is the angle of refraction.

Since n₁ = 1 (refractive index of air), we can rearrange the equation to solve for sin(θ₂):

sin(θ₂) = (n₁ / n₂) * sin(θ₁)

Plugging in the values, we have:

sin(θ₂) = (1 / 1.5) * sin(41)

Now, we can find the angle of refraction, θ₂, and use it to calculate the distance traveled inside the glass:

θ₂ = arcsin((1 / 1.5) * sin(41))

d = t * tan(θ₂)

Substituting the values, we get:

d = 1.6 * tan(arcsin((1 / 1.5) * sin(41)))

Evaluating this expression, we find that the light ray travels approximately 0.708 cm inside the glass before emerging on the far side.

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Your correct answers are:

B. A field that is perpendicular to the flow of charges

C. A magnetic field

When electric charges move through a conductor, two fields are formed: a magnetic field and an electric field. The correct answer is C. a magnetic field and D. an electric field.

A magnetic field is formed around the conductor when electric charges flow through it. This is due to the interaction between the moving charges and the magnetic field lines. The magnetic field is perpendicular to the flow of charges and its strength depends on the magnitude of the current flowing through the conductor.

An electric field is also formed around the conductor. This electric field is established due to the presence of charges and their interaction with each other. The electric field lines are typically radial, originating from the charged particles or the source of the electric field. The electric field exists both inside and outside the conductor.

So, the correct answer is C. a magnetic field and D. an electric field.

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In a head-on proton-proton collision, the ratio of kinetic energy in the center of the mass system to the incident kinetic energy can be approximated using the first two nonzero terms of the Taylor series.
Let's denote the ratio of kinetic energy in the center of the mass system to the incident kinetic energy as R.

To find R, we can use the Taylor series expansion. The Taylor series expansion of a function f(x) centered at a point a is given by:
f(x) = f(a) + f'(a)(x-a) + (f''(a)/2!)(x-a)^2 + ...

In this case, we want to approximate R using the first two nonzero terms. Let's assume that E is the incident kinetic energy and mc^2 is the rest energy of the protons. Since we are considering an extremely relativistic scenario where E is much greater than mc^2 (E >> mc^2), we can use the hint given in the problem that if x >> y, then xy ≈ 0.
So, we have R ≈ 1 + 0 + ... (ignoring higher-order terms)

Therefore, the approximation of R with the first two nonzero terms of the Taylor series when E <> mc^2 is:
R ≈ 1

This means that in the extremely relativistic scenario, the ratio of kinetic energy in the center of the mass system to the incident kinetic energy is approximately 1.

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The height of the building if a ball is thrown upwards at 6m/s from the top of the building is 102.48m.

The height of the building in this question can be calculated using one of the equations of motion as follows:

s = ut + ½at²

Where;

According to this question, a ball is thrown upwards at 6.00 m/s from the top of a building. If the ball hits the ground 4.00 seconds after you throw the ball, the height can be calculated as follows:

s = 6 × 4 + ½ × 9.81 × 4²

s = 24 + 78.48

s = 102.48m

Therefore, 102.48m is the height of the building.

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Answer:

b

Explanation:

When a steel pipe is heated with a 100°C liquid, its temperature increases and it expands due to thermal expansion.

Heating a steel pipe with a 100°C liquid will cause the pipe's temperature to rise. As the temperature increases, the steel pipe undergoes thermal expansion, meaning it expands in size. Steel, like most materials, expands when heated and contracts when cooled.

The extent of expansion depends on the specific properties of the steel and its dimensions. The coefficient of linear expansion, a material-specific property, determines how much the length of the steel pipe will increase with temperature. Additionally, thermal expansion may also cause slight changes in the pipe's diameter.

It is important to consider the potential effects of thermal expansion when working with steel pipes. Engineers and designers take these factors into account to ensure proper allowances for expansion and contraction, especially in applications where temperature fluctuations are common or significant.

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The time taken to reach the maximum height, given that the ball has an initial velocity of 22 m/s is 0.62 s

The time taken to reach the maximum height can be obtained by using the following formula:

t = uSineθ / g

Where

Now, we shall determine the time taken to reach the maximum as follow:

t = uSineθ / g

t = (22 × Sine 16) / 9.8

t = 0.62 s

Thus, the time taken is 0.62 s

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Answer:

Your distance is 100m(meters)

Your displacement is 0

Explanation:

Answer:

THE ANSWER IS

Explanation:

The cloud must spin more quickly in order to maintain angular momentum (if the distance of the mass from the center of the cloud decreases, the rate of spin must increase to compensate).

Stars and planets are created by the collision of enormous cosmic gas and dust clouds. The contents of these clouds as well as the clouds themselves are continually in motion as they revolve in the main gravitational field of the galaxy.

This movement will most likely cause the cloud to rotate somewhat when viewed from a place near its center. This rotation can be described in terms of angular momentum, an immutable measure of its motion.

The conservation of angular momentum explains why ice skaters spin faster when they draw their arms in. As her arms go closer to her axis of rotation, she moves more quickly while keeping the same angular momentum.

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Answer:

There are 4

Explanation:

The sound intensity level (SIL) is a measure of the intensity of sound waves that reach the ear and is measured in decibels (dB).Therefore, the difference in sound intensity levels heard by the father and mother is about 21 db. (74 dB - 53 dB). This means that the father hears a sound that is about 120 times louder than the mother.

The answer the question, we need to know the distance from the baby's mouth to each parent's ear, as well as the intensity of the sound produced by the baby's mouth. Let's assume that the baby's mouth produces a sound of 60 dB at a distance of 30 cm and that the sound intensity decreases as the distance increases according to the inverse square law. Using this law, we can calculate that at a distance of 1.50 m, the sound intensity would be about 33 db. Now, to calculate the difference in sound intensity levels heard by the father and mother, we need to take into account their respective distances from the baby's mouth. Using the inverse square law again, we can calculate that the sound intensity level heard by the father would be about 74 db., while the sound intensity level heard by the mother would be about 53 db. Therefore, the difference in sound intensity levels heard by the father and mother is about 21 db. (74 dB - 53 dB). This means that the father hears a sound that is about 120 times louder than the mother.

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Answer:

more quickly on a hot day

Explanation:

The Answer is B because primary consumers need to get their food from plants.

Answer:

The Answer is B because primary consumers need to get their food from plants

Explanation:

The force on the atom by the point charge changes by a factor of 1/9.

The force between a neutral atom and a point charge follows the inverse square law, which states that the force is inversely proportional to the square of the distance between them. If the distance between the neutral atom and the point charge is tripled, the new distance becomes three times the original distance. According to the inverse square law, the force is proportional to the inverse square of the distance. Therefore, the new force will be (1/3)^2 = 1/9 times the original force, indicating a decrease in force by a factor of 1/9.

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Answer:

The ball will be travelling downward with a speed of 9.8 m/s.

Explanation:

The ball will be travelling downward with a speed of 9.8 m/s.

Explanation:

The acceleration of the ball will be a constant  

9.8 m s 2

(downward), regardless of whether the ball is travelling upward or downward.

The equation that makes this calculation simplest is

v f = v i − g ( Δ t )  

where the negative sign has been used to account for the opposite directions of  v i  and  g . After 3 seconds, v f = 19.6 − ( 9.8 ) ( 3 ) = 19.6 − 29.4 = − 9.8 m s

The negative result tells us that the ball is on its way downward by this time (consistent with our choice of a negative value for the downward acceleration of gravity).

The acceleration of a circular track if a car's speedometer reads 32 m/s and the track has a radius of 56 m is 18.29 m / s²

\(a_{c}\) = v² / r

\(a_{c}\) = Centripetal acceleration

v = Linear / Tangential velocity

r = Radius

v = 32 m / s

r = 56 m

\(a_{c}\) = 32² / 56

\(a_{c}\) = 1024 / 56

\(a_{c}\) = 18.29 m / s²

Centripetal acceleration is the acceleration of an object in circular motion. It is always acting to center point with which the object is rotating about. The velocity used in the formula is tangential velocity which acts perpendicular to the motion of the object.

Therefore, the acceleration of a circular track is 18.29 m / s²

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I agree with Jeremy's statement that adding bulbs in parallel provides more paths for current to flow. When bulbs are connected in parallel, each bulb has its own separate path to the power source. This configuration allows the current to divide among the bulbs, with each bulb receiving the same voltage across it.

In a series circuit, adding bulbs increases the total resistance of the circuit, which, according to Ohm's Law (V = IR), would reduce the current flowing through the circuit. This is because the total resistance in a series circuit is the sum of the individual resistances, resulting in a higher overall resistance and lower current.

However, in a parallel circuit, adding bulbs does not increase the total resistance significantly. Each additional bulb provides an additional path for current to flow, effectively decreasing the overall resistance of the circuit. As a result, more current can flow through the circuit when bulbs are connected in parallel.

Therefore, Jeremy's statement is correct that adding bulbs in parallel provides more paths, allowing more current to flow, while Hector's statement about adding bulbs in series is inaccurate in terms of increasing current flow.

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Answer:

It can be, but no, mostly it won't be, and it will fall.

Explanation:

When you put force on a structure it will most likely fall unless, it's a big statue.

Answer:

D

Explanation:

Because triton orbits neptune backwards it will fall into neptune giving neptune bigger rings

Answer:

100

Explanation:

cause power equal to work over time