Is water wet?
I need an argument.

Electric utility power blackouts will result in short electric power outages for the organization.

When the electrical power network, often known as the electrical grid, is down, there are power outages. Power outages can have a variety of causes, but they always tend to affect entire regions or cities rather than simply a single residence. For example, the Northeast blackout of 2003 left 50 million people without power from New York to Canada’s capital Ottawa.  

A place experiences a blackout when all power is lost. Power outages of this kind generally affect a sizable population over perhaps extraordinarily broad areas. Blackouts are particularly difficult to quickly fix because they typically result from significant damage to electrical generation facilities (such as structural damage from violent wind storms or lightning strikes). As a result, these types of outages can, in the worst-case scenarios, last for several weeks.

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Answer:

[tex]1275 kg*m/s[/tex]

Explanation:

We'll use the momentum equation:

[tex]p=mv[/tex]

where:

p = momentum

m = mass

v = velocity

Since we're doing the magnitude of momentum of the system, we'll add the mass of the cyclist and the mountain bike together:

[tex]70.0 kg + 15.0kg=85.0 kg[/tex]

Given that, we can now substitute our given values into the momentum equation:

[tex]p=mv\\p=85.0kg*15.0m/s[/tex]

Our final answer is:

[tex]p= 1275 kg*m/s[/tex]

An electric motor has an effective resistance of 29. 4 ω and an inductive reactance of 42. 6 ω. When working under load. the rms voltage across the alternating source is 442 v.  The rms current will be  8.54 A

AC stands for “Alternating Current,” meaning voltage or current that changes polarity or direction, respectively, over time. AC electromechanical generators, known as alternators, are of simpler construction than DC electromechanical generators.

RMS or root mean square current/voltage of the alternating current/voltage represents the D.C current/voltage that dissipates the same amount of power as the average power dissipated by the alternating current/voltage. For sinusoidal oscillations, the RMS value equals peak value divided by the square root of 2.

I (RMS) = RMS voltage / [tex]\sqrt{R^{2}+ X_{L} { ^{2} }[/tex]

           =  442 / [tex]\sqrt{29.4^{2} + 42.6^{2} }[/tex]

           = 442 / [tex]\sqrt{864.36 + 1814.76}[/tex]

           = 442 / [tex]\sqrt{2679.12}[/tex]

           = 8.54 A

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Tension reinforced section is when you have steel reinforcement (rebar) on the tension controlled region where the rebar is used to counteract the lack of tensile strength in concrete. When reinforcement is only present in the tension zone, you have a singly reinforced beam.

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Answer:

Approximately [tex]143\; {\rm T}[/tex] assuming that this transmission line is straight and infinitely long.

Explanation:

Lookup the permeability of free space: [tex]\mu_{0} = 4\, \pi\; {\rm T \cdot m \cdot A^{-1}[/tex].

Consider an infinitely-long straight wire in empty space carrying a current of [tex]I[/tex]. At a distance of [tex]r[/tex] from this wire, the magnitude of the magnetic field from the wire would be:

[tex]\begin{aligned} B &= \frac{\mu_{0}\, I}{2\, \pi\, R}\end{aligned}[/tex].

In this question, it is given that [tex]I = 500\; {\rm A}[/tex]. At a distance of [tex]R = 7.0\; {\rm m}[/tex] from this wire, the magnitude of the magnetic field from this cable would be:

[tex]\begin{aligned} B &= \frac{\mu_{0}\, I}{2\, \pi\, R} \\ &= \frac{(4\, \pi \; {\rm T \cdot m \cdot A^{-1}}) \, (500\; {\rm A})}{(2\, \pi)\, (7.0\; {\rm m})} \\ &\approx 143\; {\rm T}\end{aligned}[/tex].

A circuit with an impedance of 5 ohms and a voltage of 100 volts has a current flow of 20 A.

The expression of an electronic component, circuit, or system's resistance to alternating and/or direct electric current is called impedance, indicated by the letter Z. Resistance and reactance are two distinct scalar (one-dimensional) phenomena that combine to form impedance, a vector (two-dimensional) variable.

[tex]Z^{}[/tex] = [tex]\frac{V}{I}[/tex]

(for a pure resistor where Z=R,preserving the form of the DC Ohm's law).

[tex]I=\frac{V}{Z}[/tex]

[tex]I = \frac{100}{5}[/tex]

I = 20 A

Therefore, A circuit with an impedance of 5 ohms and a voltage of 100 volts has a current flow of 20 A.

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The components that are a possible representation of vector w if the magnitude of vector -3w is ||-3w||=15 are:

From the question, we were given:

|-3w| = 15

3|-w| = 3|w| = 15

Hence:

|w|  = 15/3

|w| = 5

If vector w is represented by <-3,4>, then:

 [tex]\sqrt{(-3)^2 + (4)^2} \\\\\\\sqrt{25} = 5[/tex]

If vector w is represented by <0,-5>

 [tex]\sqrt{(0)^2 + (-5)^2} \\\\\\\sqrt{25} = 5[/tex]

Therefore, The components that are a possible representation of vector w if the magnitude of vector -3w is ||-3w||=15 are:

See full question below

Which components are a possible representation of vector w if the magnitude of vector -3w is ||-3w||=15?

<1,-9>

<-3,4>

<4,5>

<-5,-3>

<0,-5>

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The tension in the wire, the wave's speed, its frequency, and its average power are used to calculate the wave's amplitude.

To find the answer, we have to know about the simple harmonic motion.

                                 P = (¹/₂)(T/v²)(ω²)(A²)(v)

                                 P = (¹/₂)(T/v)(ω²)(A²)

                                 P = (¹/₂)(T/v)(2πf)²(A²)

where; U is the average power of the wave, T is the tension e wire, ω angular frequency of the wave, A is amplitude of the wave, v is the speed of the wave and f is frequency of the wave.

Thus, the tension in the wire, the wave's speed, its frequency, and its average power are used to calculate the wave's amplitude.

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According to Stephanie, is the optimal production quantity per cycle. The best output rate each cycle for each day of the week, as determined by Step 1 by Stephanie, might be: To calculate each model's daily demand, multiply the weekly demand for each model by 5.the total number of protons and neutrons found in an atom's nucleus.

The mass number is an production that roughly equates to the atomic mass's numerical value. Despite being unitless, the mass number is assigned atomic mass units (amu). The average atomic mass of any molecule or polyatomic ion can be determined from its composition by summing the rate masses of the constituent atoms.

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The current that will flow in the secondary coil will be 23.5 Amperes

Power is the rate per unit time, at which electrical energy is transferred by an electrical circuit.

The SI unit of power is the watt and is given by Voltage * Current

Let's solve the question:

Given:

Voltage ( Primary ) = Vp = 114 V

Current ( Primary ) = Ip = 6 A

Voltage ( Secondary ) = Vs = 29 V

Current ( Secondary ) = Is = ?

In Ideal Transformer Primary Power = Secondary Power

Therefore, Vp * Ip = Vs * Is

                  114 * 6 = 29 * Is

                   684 = 29 Is

                   Is = 23.5 Amperes

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The power required will be equal to 463.3 watt

Power is defined as the rate of work

[tex]P=\frac{W}{t}[/tex]

here P is power , W is work done , t is time taken

work done is defined as force times displacement

here s is displacement

here total force will be the weight of the firefighter plus the weight of gear

therefore F=(90+40)×9.8 N

so substituting value in equation of power we get

P=[tex]\frac{25480}{55}[/tex]

p=463.3 watt

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Heat is transferred from the sun-warmed surface of the earth to the cooler overlying troposphere via conduction.

Conduction, convection, latent heating, and water phase transitions all help to carry heat from the Earth's surface, which has been warmed by the Sun, to the cooler troposphere above.

Latent heat flux is the worldwide transfer of latent heat energy via water and air currents. Here, we demonstrate how air circulation transports latent heat energy horizontally to cooler regions, where it condenses into rain or is deposited as snow, releasing the heat energy that was previously trapped there.

When air is heated from below by sunshine or by coming into contact with a warmer land or sea surface, convection occurs and the air below becomes less dense than the air above.

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Polynomials can be classified based on the number of terms is contains which may be monomial, binomial, or trinomial.

Polynomials are algebraic expressions that contains a constant that is multiplied by one or more variables.

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The complete question:

Classify each polynomials based on the number of terms it contains.

-2x^2-x+3.5

10xyz^3

-x^2y^2+2y

8x^2+0.25

x^3y^4+2x^2y-3z

(a) The mass of the block is 5.1 kg.

(b) The magnitude of the normal force of the block is 46.98 N.

(c) The maximum static frictional force between the block and the incline is 23.49 N.

(d) The gravitational force parallel to the plane is 17.1 N.

(e) The block will not slide after being placed on the incline since the parallel force is less than the maximum static frictional force.

(f) The acceleration will be in the direction of the static frictional force.

The given parameters in the question;

The mass of the block is calculated as follows;

W = mg

where;

m = W/g

m = (50) / 9.8

m = 5.1 kg

Fₙ = mg cosθ

Fₙ = W cosθ

Fₙ = 50 x cos(20)

Fₙ = 46.98 N

Fs = μs(Fₙ)

Fs = 0.5 x 46.98 N

Fs = 23.49 N

F = W sinθ

F = 50 x sin(20)

F = 17.1 N

F(net) = F - Fs

F(net)  = 17.1 N - 23.49 N = -6.39 N

Thus, the block will not slide after being placed on the incline since the parallel force is less than the maximum static frictional force.

a = F(net)/m

a = -6.39/5.1

a = -1.25 m/s²

The acceleration will be in the direction of the static frictional force.

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The answer is 12,500 cm³.

First, let's find the volume in m³.

Volume = Mass ÷ Density

Now, to convert from m³ to cm³ :

m³ × 10⁶ = cm³

Explanation:

i think it give out energy when it melts

The average emf induced is "ωBA volts".if we know the value of ω, B & A we can easily calculate the value. Faraday's law of induction determines the typical emf produced by spinning a coil's turn in the earth's magnetic field.

Discussion:

According to this equation, the magnetic flux through a closed loop changes at a time rate equal to the negative of the induced emf in the loop.

Calculation:

This flux value is constant and no electromagnetic field (EMF) is produced when the loop is positioned in the earth's magnetic field without moving. When the magnetic field starts rotating, the area and magnetic field strength stay constant, but the angle between the plane of the area's normal and the field lines continues to alter or fluctuate. Due to the magnetic flux's relationship to angle and the time dt at which an average emf is produced in the coil, this results in a change in the net magnetic field across the loop.

The flux φ = BAcosθ

E = - dφ/dt = - d(BAcosθ)/dt

As "B" & "A", both are constant

so, E= - BAd(cosθ)/dt

where, θ = the function of time

θ = ωt

where, ω = angular frequency (rad/sec)

E = -BAd(Cosωt)/dt

E = - (-ω)BA Sinωt = ωBA Sinωt

E = ωBASinωt

E = -d(BACosθ)/dt

The plane is now parallel to the field, and the normal is now perpendicular to the field.

θ=90°

Therefore, E= ωBASin90° = ωBA(1) = ωBA

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The  research team should compare all their test results along with other kinds of similar personality tests to know if they will have similar type of results.

It is known to be Myers-Briggs Personality Type Indicator and this is said to be a kind of a self-report inventory that is made to know a person's personality type, along with their strengths, and preferences.

Note that the questionnaire was made or created by Isabel Myers along with her mother Katherine Briggs and it is one that is based on their work with the use of Carl Jung's theory of personality types.

Hence, The  research team should compare all their test results along with other kinds of similar personality tests to know if they will have similar type of results.

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Answer:

Giant impacts in its early history may have torn away much of its original crust and mantle.

So Mercury has a giant iron core, but why?

There are three general ideas.

1. Mercury was once the core of a gas giant that vaporized when the Sun became a fully-fledged star. This gas giant was probably more like Uranus or Neptune than Jupiter or Saturn.

There are significant issues here, especially that Mercury's existing surface has been exposed to space since the solar system's initial beginnings. On Mercury, remnants of the first massive bombardment have been found.

2. Mercury formerly had a deeper mantle and was a bigger terrestrial planet. During the early history of the solar system, a dwarf planet made a massive impact that robbed the planet of its mantle.

The existing surface of Mercury has been exposed to space since the very beginning of the solar system, which raises major issues once more.

Due to the factors in explanation 1, characteristics from the first significant bombardment have been found on Mercury. The quantity of low temperature volatiles that are trapped and sometimes sublimate out of the crust, causing hollows, is also a major issue. By such an impact, these low temperature volatiles—such as sodium, sulphur, magnesium, etc.—would have been completely pushed out.

3. A mostly iron-rich body developed, and "rock steam"—a gaseous mixture of atomic oxygen and silica—condensed and accreted onto it from the protoplanetary disk near the Sun. Small rock particles with lower temperature volatiles were subsequently formed into a crust. Additionally, it appears that iron was concentrated in the inner region of the protoplanetary disk by the Sun's early, extremely powerful magnetosphere.

Whilst there are a few minor issues with this, this appears by far the most likely scenario.

Its crust and mantle may have been significantly altered during its early history by massive collisions.

The extremely hot and dense core of Earth is called the core. Under the mainly solid mantle and the chilly, brittle crust is the ball-shaped core. The radius of the core is about 3,485 kilometers, and it can be located around 2,900 kilometers (1,802 miles) beneath the surface of the Earth (2,165 miles). Earth is more ancient than the core.

Approximately 4.5 billion years ago, Earth was a uniform ball of hot rock. The ball warmed up considerably more due to radioactive decay and residual heat during planetary formation. After roughly 500 million years, the temperature of our new planet reached 1,538 degrees Celsius (2,800 degrees Fahrenheit), which is the temperature at which iron melts. The iron catastrophe refers to this critical moment in Earth's history.

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When a proton slows from 0. 8c up to 0. 6c, it’s kinetic energy decreases by what factor of 1/4.

Kinetic energy of a proton having a charge Q and Voltage V is given by:

Kinetic energy = Q×V

Where, Q is the charge

            V is the Voltage

Kinetic energy is directly proportional to the charge on a proton.

Let the kinetic energy of proton having charge 0.8C be KE₁ and kinetic energy of proton having charge 0.6C be KE₂

Hence KE₁ = 0.8 × V

KE₂ = 0.6 × V

Now, KE₁ / KE₂ = 0.8 V / 0.6 V

⇒          KE₁ / KE₂ = 4 / 3

⇒         KE₂ / KE₁ = 3/4

⇒         KE₂ = 3/4 times KE₁

Hence, the final kinetic energy becomes 3/4 times the initial kinetic energy.

The kinetic energy decreases by a factor of:

Change = KE₁ - KE₂

Change = KE₁ - 3/4KE₁

Change = 1/4 KE₁

Hence, the kinetic energy decreases by a factor of 1/4

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Answer:

1. A proton's magnetic moment arises from a fundamental quantum property called spin, which causes the proton to behave as a tiny bar magnet with a north and a south pole. When placed in an external magnetic field, the proton's spin can either align with the field or flip to orient itself against the field

2. The force can change the direction (velocity) of the proton but not its speed (magnitude).

The time for one complete oscillation will not depend on any of the factors listed. Option D

A pendulum is composed of a string that is vertically suspended and the end of the string has a mass attached to it. The period of the pendulum refers to the umber of oscillations that occur after the pendulum is displaced through  small angle.

Given that the period of a pendulum is;

T = 2π√l/g

T = period of the pendulum

l = length of the pendulum

g = acceleration due to gravity

Hence, the time for one complete oscillation will not depend on any of the factors listed. Option D

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Missing parts;

For a mass suspended on a spring in the vertical direction, the time for one complete oscillation will depend on: a)the value for g (the acceleration due to gravity) b)the distance the mass was originally pulled down c)the maximum speed of the oscillating mass d)the time doesn't depend on any of the above

Your hand feels colder when it transitions from warm to "colder" (room temperature) water.

Your hand feels colder when you move it from the warm water to the "colder" (room temperature) water. Skin surface temperature will decrease in a constant ambient environment as a result of sympathetic nerve activity increasing and blood flow decreasing as a result of cutaneous receptors triggered by ice-water immersion of one hand in the palm skin of the non-immersed opposite hand.

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A skater can spin faster by pulling her arms closer to her body or spin slower by spreading her arms out from her body due to conservation of angular momentum.

What is conservation of angular momentum?

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A Final statement or concluding statement

As, Pressure(P)=(Force(F))/(Area(A)) . So, By Lying down flat on the ice and crawl towards shore will help to get off the ice safely.

Pressure and area of contact are related in such a way that they are inversely proportional to each other.

As the area shrinks, so does the pressure.

Consider the difference between the pressure exerted by a finger pressing on the skin and the pressure exerted by a needle attached to a syringe.

When pressed, the finger may cause a slight depression on the skin but may not cause any pain.

When the same force is applied to a needle, however, the pressure produced  is sufficient to puncture the skin.

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The break up of the supercontinent Rodinia and changes in climate due to increased weathering and carbon dioxide drawdown are likely causes of snowball earth.

Rodinia was a supercontinent that assembled 1.1–0.9 billion years ago and broke up 750–633 million years ago. The extreme cooling of the global climate around 717–635 million years ago (the so-called Snowball Earth of the Cryogenian period) and the rapid evolution of primitive life  are thought to have been triggered by the breaking up of Rodinia

The results revealed the breakup of Rodinia occurred over the same geological time period as carbon dioxide declined and temperatures fell. That, Meert said, pointed to Rodinia's breakup as the cause of Snowball Earth

The break-up of a supercontinent may have caused a 'Snowball Earth'. The Earth might have been sent into an ice age by the break-up of a supercontinent 750 million years ago, creating a global snowball. The break-up probably caused an increase in rainfall and weathering of rock

Just as shattering a rock into pieces increases its exposed surface area, so breaking up the supercontinent increased the amount of land exposed to the elements and resulted in a more active hydrological cycle

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Newton's reformulation of kepler's third law allows us to measure the masses of bodies in orbit around each other, if we can measure the distances and periods of revolution

Isaac Newton made a reformulation of the 3rd law of Kepler with regards to the orbital periods of a planet and this helped to measure the masses of bodies in orbit around each other, if we can measure the distances and periods of revolution

This refers to the law of physics that states that the square of the orbital periods of a planet is directly proportional to the cube of the semi-major axis of its orbit

Hence, there was a reformulation of the 3rd law of Kepler by Isaac Newton with regards to the orbital periods of a planet and this helped to measure the masses of bodies in orbit around each other, if we can measure the distances and periods of revolution

This shows that the distances and periods of revolution are key aspects to neasyre the  masses of bodies in orbit around each other,

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Atmospheric pressure is about 100000 pa. at h ≈ 10 m depth in water does this pressure double

Water pressure is the result of the weight of all the water above pushing down on the water below. As you go deeper into a body of water, there is more water above, and therefore a greater weight pushing down. This is the reason water pressure increases with depth.

The atmospheric pressure at a point is defined as the force acting normally on a unit area around that point, due to the total height of the air column of the atmosphere above it.

Pressure in depth = Atmospheric pressure + (rho) * g * h

where

rho = density of water

g = acceleration due to gravity

h = depth in water

P = Po + rho * g * h

2 * [tex]10^{5}[/tex] =  [tex]10^{5}[/tex]  + [tex]10^{3}[/tex] * 9.8 * h

h = 10.20 m

h ≈ 10 m

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Answer:

It won't increase according to Boyle's law

Explanation:

Volume of a gas varies inversely as the pressure so as more fixed volume of gas is added to the chamber the pressure reduces