What element is represented by this diagram

Answer:

En un proceso isotérmico, es decir, la temperatura no cambia, el trabajo puede escribirse como:

W = n*R*T*Ln(P1/P2)

Donde P1 es la presión inicial y P2 la presión final.

Donde las cantidades:

n =  número de moles

R = constante de los gases ideales

T = temperatura no cambian.

Y sabemos que la ecuación de la energía interna es:

U = C*n*R*T

Donde C es otra constante que depende del gas.

De aca, podemos concluir que ninguna de estas variables cambia en nuestro proceso, por lo que la variación de la energía interna es cero.

U2 - U1 = 0

b) Para el calor cedido o absorbido, la formula básica es:

ΔQ = C*(T2 - T1)

Donde ΔQ es el calor absorbido o cedido por el gas, C es una constante que depende del gas, T2 es la temperatura final del gas y T1 es la temperatura inicial del gas.

Como la temperatura no cambia en el proceso, entonces:

T2 = T1

ΔQ = C*(T2 - T1) = C*0 = 0

No hay calor absorbido ni cedido.

c) Podemos concluir que en un proceso isotérmico la energía interna no cambia, y no hay un intercambio de calor.

Answer:

D. Refracted

Explanation:

At the point when light passes from a less thick to a more thick substance, (for instance passing from air into water), the light is refracted (or bowed) towards the ordinary. The bowing happens on the grounds that light voyages all the more gradually in a denser medium. The answer is D, refracted.

Answer:

the final velocity of the car is 59.33 m/s [N]

Explanation:

Given;

acceleration of the car, a = 13 m/s²

initial velocity of the car, u = 120 km/h = 33.33 m/s

duration of the car motion, t = 2 s

The final velocity of the car in the same direction is calculated as follows;

v = u + at

where;

v is the final velocity of the car

v = 33.33 + 13 x 2

v = 59.33 m/s [N]

Therefore, the final velocity of the car is 59.33 m/s [N]

[tex] \boxed{ \mathrm{Kinetic \: Energy = \frac{1}{2} m {v}^{2} }}[/tex]

_____________________________

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Answer:

Horizontal

Explanation:

It is going more sideways than upwards

Answer:

[tex]F_w=1000Hz[/tex]

Explanation:

From the question we are told that:

Frequency [tex]F=1200[/tex]

Speed [tex]V_w= \frac{1}{5}*343=>68.6m/s[/tex]

Where speed of sound [tex]V_s=343m/s[/tex]

Generally the equation for frequency  that echo from the cliff wall is mathematically given by

[tex]F_w=\frac{V_s-V_0}{Vs+V_w}*F[/tex]

[tex]F_w=\frac{343-0}{343+68.6}*1200[/tex]

[tex]F_w=1000Hz[/tex]

Daniel will earn $2.20 more a week because his pay increase will increase his pay from $8 to $8.40.

The crucial question to respond to is this one. When making your request for a raise, make a list of all the reasons why you desire one.

Don't ask for a raise because your rent increased or because you're annoyed that your coworker doesn't put in as much effort yet is paid the same as you.

Your request should be supported by arguments that are based on your performance and the value you provide to the team and the corporation.

After doing their annual performance review, which may occur at the beginning of the new year or at the conclusion of the first quarter of the year, businesses typically change the pay of their personnel.

Therefore, Daniel will earn $2.20 more a week because his pay increase will increase his pay from $8 to $8.40.

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Answer:

1. 300.15

2. 873.15

3. 221.95

1. -243.15

2. -210.85

3. 295.17

P = 7.3 × 10^-13 Watt

Explanation:

First of all, are you sure that what you have is the right answer?

Anyway, the definition of power dissipated is given by

P = I^2×R

where I is the current and R is the resistance. But we also know from Ohm's law that

V = IR

so we can rewrite the equation for power P as

P = I^2R = I(IR) = VI

= (0.0054 volt)(1.35 × 10^-10 A)

= 7.3 × 10^-13 Watt

When an object absorbs light energy, it reflects none of the colors. The correct option is B.

The change in direction of a wavefront at an interface between two different media so that the wavefront returns to the medium from which it originated is referred to as reflection. Reflection of light, sound, and water waves are common examples.

Objects appear different colors because they absorb certain colors (wavelengths) while reflecting or transmitting others. The wavelengths that are reflected or transmitted are what we see as colors.

If photon energy is absorbed, the energy from the photon is typically manifested as heating the matter.

Light absorption causes an object to become dark or opaque to the wavelengths or colors of the incoming wave: Wood is impervious to visible light.

Thus, the correct option is B.

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Answer:

81.81 kg

Explanation:

[tex]m_1[/tex] = Mass of person = 78.4 kg

[tex]m_2[/tex] = Mass of canister

[tex]u_1[/tex] = Initial velocity of person = 0

[tex]u_2[/tex] = Initial velocity of canister = 3.5 m/s

[tex]v_1[/tex] = Final velocity of person = 2.4 m/s

[tex]v_2[/tex] = Final velocity of canister = 1.2 m/s

The momentum balance in the system is given by

[tex]m_1u_1+m_2u_2=m_1v_1+m_2v_2\\\Rightarrow 78.4\times 0+m_2\times 3.5=78.4\times 2.4+m_2\times 1.2\\\Rightarrow m_2=\dfrac{78.4\times 2.4}{3.5-1.2}\\\Rightarrow m_2=81.81\ \text{kg}[/tex]

Mass of the canister is 81.81 kg.

Answer:

Work

Explanation:

Units are

[tex]kg {m}^{2} {s}^{ - 2} = newtons \times meter[/tex]

Answer: ​ It is an insidious, self-perpetuating problem that affects generations of families. ... Society can intervene to increase host resistance and mitigate poverty's negative ... prevention, quality, potentially avoidable hospital use, and health outcomes. ... These findings point out that low-income status does not have to determine poor

Explanation:

Answer:

it will obviously be decreased by 40p

Answer: Line A

Explanation: Distance AFFECTS the amount. Potential Energy DOESN'T AFFECT the distance.

Line B accurately shows the relationship between distance and the amount of potential energy stored in this system.

The amount of work required to rotate a magnetic dipole from its zero potential state to any desired position is known as the potential energy of the magnetic dipole in a magnetic field.

Here,

Maxwell's equations establish a relation between magnetic potential energy and electrostatic potential energy. The mechanical work of the magnetic force (really, magnetic torque) on the re-alignment of the vector of the magnetic dipole moment is what is known as the potential energy of a magnet or magnetic moment m in a magnetic field B.

The magnetic field's direction and distance have an impact on magnetic PE. A magnet's south pole can get close to its opposite pole's north pole. The two magnets are drawn together by this force. Their potential energy increases with increasing distance. It is possible for two north poles to collide.

The fields of the magnets are perfectly opposite one another. They are forced apart by a repelling force created by the field. Each one repels the other. The closer they are in this situation, the greater their potential energy will be.

Hence,

Line B accurately shows the relationship between distance and the amount of potential energy stored in this system.

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When you say full valence shell, are you talking about a valence electron shell?

I am learning about atoms and i know a little bit

Atoms in Group 18 elements are inert (chemically unreactive) because they have no valance electrons. The correct option is B.

In chemistry, an element's valence or valency is the measure of its ability to combine with other atoms to form chemical compounds or molecules.

The number of atoms of one element combined with one atom of another element to form a molecule is referred to as its valency.

Valency is also referred to as molecular weight. Valency is a measure of an atom's combining power. The number of electrons in an element's outermost shell determines its valency.

Because of their full valence shells, noble gases are unreactive. They do not easily gain or lose electrons because they are already in the most stable electronic configuration.

Thus, the correct option is B.

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Answer:

There are 45 turns in the secondary coil.

Explanation:

Given that,

Input potential of the lamp, [tex]V_{in}=5\ V[/tex]

The output potential of the lamp, [tex]V_{out}=1.5\ V[/tex]

Number of turns in primary coil, [tex]N_P=150[/tex]

We need to find the number of turns needed on the secondary coil. We know that the ratio for a transformer is as follows :

[tex]\dfrac{V_{out}}{V_{in}}=\dfrac{N_s}{N_P}\\\\N_s=\dfrac{V_{out}N_P}{V_{in}}\\\\N_s=\dfrac{1.5\times 150}{5}\\\\N_s=45\[/tex]

So, there are 45 turns in the secondary coil.

Complete question:

An electron is released in a uniform electric field with a magnitude of 8000 V/m. The electron is displaced 2 m as a result. Find the potential difference between the electron's initial and final position.

Answer:

the potential difference between the electron's initial and final position is 16,000 V.

Explanation:

Given;

magnitude of the electric field, E = 8,000 V/m

initial position of the electron, x₀ = 0

final position of the electron, x₁ = 2 m

The potential difference between the electron's initial and final position;

V = E(x₁ - x₀)

V = 8000(2 - 0)

V = 16,000 V

Therefore, the potential difference between the electron's initial and final position is 16,000 V.

Answer:

The product choices along with its competitive prices were provided to the consumers. Practices such as horizontal collusion and resale price maintenance was declared unlawful in 1984. Prevention of monopoly growth was the aim of the competition policy act.

Explanation:

hope this helps you

Answer: [tex]1.4\ \Omega[/tex]

Explanation:

Given

Cross-sectional area [tex]A=0.7\ mm^2[/tex]

Resistivity [tex]\rho =4.94\times 10^{-4}\ \Omega-mm[/tex]

Length of wire [tex]l=2\ m\ or\ 2000\ mm[/tex]

Resistance is given by

[tex]\Rightarrow R=\dfrac{\rho l}{A}\\\\\text{Insert values}\\\\\Rightarrow R=4.9\times 10^{-4}\times \dfrac{2000}{0.7}\\\\\Rightarrow R=1.4\ \Omega[/tex]

Answer: 3300 m/s

F = ma; units: N = kg(m/s/s); where F and a are both vectors, while m, t, and v (speed) are scalars

We are given the mass, force, and the time; however, speed is our unknown.

[F = 16500 N]  [m = 10 kg]  [t = 2 s]  [v = unknown]

What we can do is use kinematics in order to relate v and t with F and m:

For example, we can use V = V₀ + at

Since F = ma can equal a = F/m, we can replace the a variable within the kinematics equation with F/m, so that:

V = V₀ + at

V = V₀ + (F/m)t

In this problem, we can assume the initial value V to equal 0, giving us:

V = (F/m)t

Plugging in the quantities we get:

V = [tex]\frac{16500 N}{10kg}[/tex]· 2s

V = 3300 m/s

To further check whether this is the right manipulated equation to use, we can use dimensional anaylsis to determine that:

V = [tex]\frac{kg(m/s/s) }{kg}[/tex]· s

V = m/s

I hope this helped!

Answer:

 μ= 0.0375,  kinetic

Explanation:

For this exercise we set a reference system with the x axis parallel to the chord

Y axis  

      N - W = 0

      N = W

X axis

      T - fr = 0

the expression for the friction force is

      fr = μ N

we substitute

       T - μ W = 0

       μ = T / W

we calculate

         μ = 1.5 / 40

        μ= 0.0375

coefficient of kinetic friction

Answer:

the kinetic energy of the brick before it reaches the ground is 117.6 J.

Explanation:

Given;

mass of the brick, m = 2 kg

height of the building, h = 6 m

The kinetic energy of the brick before it reaches the ground is maximum.

Based on the principle of conservation of energy, the maximum potential energy = maximum kinetic energy

K.E = P.E = mgh

where;

g is the acceleration due to gravity = 9.8 m/s²

K.E = 2 x 9.8 x 6

K.E = 117.6 J

Therefore, the kinetic energy of the brick before it reaches the ground is 117.6 J.

Answer:

C. Nucleus

Explanation:

The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell.

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Answer:

A.The atoms vibrate faster due to the conduction of heat through atoms in the spoon.