Two long parallel wires carry currents of 20 a and 5. 0 a in opposite directions. the wires are separated by 0. 20 m. what is the magnetic field midway between the two wires? group of answer choices

A Final statement or concluding statement

When inspecting a transmission case for defects, measure seal surface openings by using a(n) dial caliper

For taking precise measures, a dial caliper is a calibrated precision measuring device. Normally, minor amounts of movement and material thickness are measured with dial calipers.

They are particularly well-liked for machining and automotive applications.

Most dial calipers have a measuring range of 150mm (6 inches), however there are other calipers with measuring ranges of 100mm (4 inches) and 300mm (12 inches). Dial calipers do not require batteries because they use a rack and pinion  mechanism.

As a result, they are both environmentally and economically  friendly.

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Diagram A shows two laser beams, one blue and one red, that are incident on a mirrored surface. Diagram B shows two laser beams, one blue and one red, that are incident on a transparent block of glass then The blue and red laser beams reflect at the same angle, and they refract at different angles.

A laser emits a very focused beam of light that can be used in a variety of equipment and technologies. Light Amplification by Stimulated Emission of Radiation is what the letters in the term laser stand for. The word "laser" is an acronym for "Light Amplification by Stimulated Emission of Radiation." In a laser beam, the light waves are "coherent," which means they are all traveling at the same speed and wavelength. To do this, excited electrons are passed through an optical "gain medium," which could be a solid substance like glass or a gas.

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Answer:

Kinematics of the parabolic movement

To solve the problem we will apply the kinematic equations of linear motion, which are an essential part in the characterization of parabolic motion. In this case we require the definition of acceleration described mathematically as,

a

=

v

f

−

v

i

t

Here,

v

f

=

Final Velocity

v

i

=

Initial Velocity

t

=

Time

Answer and Explanation: 1

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According to the information provided we have to

{eq}\text{Initial Velocity} = v_i = 4.0\text{ m/s}\\ \text{Initial Velocity} = v_f = 0.80\text{

1. The volume of the air is 2500 cm³

2. The pressure in the tyre is 2.27 atm

P₁V₁ = P₂V₂

Where

P₁V₁ = P₂V₂

2.5 × 1000 = 1 × V₂

V₂ = 2500 cm³

Thus, the volume of the air is 2500 cm³

P₁V₁ = P₂V₂

2.5 × 1000 = P₂ × 1100

Divide both sides by 1100

P₂ = (2.5 × 1000) / 1100

P₂ = 2.27 atm

Thus, the pressure in the tyre is 2.27 atm

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We can conclude that The star is moving toward us; shift to a shorter wavelength.

The transfer of an electron to a higher energy level, such as n = 1 or n = 2, occurs when a hydrogen atom absorbs a photon. The Balmer series refers to this group of hydrogen emission spectra.

The phrase "blueshift" describes how light waves change as an object approaches toward us in space, shifting wavelengths toward the blue end of the spectrum. Change to a shorter wavelength when the star approaches us. A shorter wavelength indicates a blueshift (shift to the blue end of the spectrum), which indicates that the object is travelling in our direction.

Therefore, We can conclude that The star is moving toward us; shift to a shorter wavelength.

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Betelgeuse is the 10th brightest star in the night sky comparing to other stars. And it is the second brightest in Orion's constellation.

Betelgeuse is the tenth brightest star in the night sky and, after Rigel, the second brightest in Orion's constellation. it is a distinctly reddish semiregular variable star with the widest apparent magnitude range of any first-magnitude star, ranging from +0.0 to +1.6. Betelgeuse is the brightest star in the night sky at near - infrared wavelengths. Its Bayer name is Orionis, which is Latinized to alpha Orionis and abbreviated alpha Ori or Ori

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Magnetic Flux is the magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity

The magnetic flux or field lines linking a coil depends on;

According to the question, the Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called magnetic flux

To obtain a large induced electromotive force, we cause a coil of many turns to move at a high speed across a strong magnetic field.

According to Faraday's law, which state that whenever there is a change in the magnetic lines of force, an electromotive force is induced, the strength of which is proportional to the rate of change of the flux linked with the circuit.

Therefore, Magnetic Flux is the magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity

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A person is submerged of about 97.9%.

The average density of the human body is given as 979 kg/ m³.

    Law of floatation can be defined as the volume of the liquid displaced when a body floats on the liquid surface is equal to the body submerged in the water.

As body has the stable equilibrium state, the buoyancy of the fluid will be equal to the weight.

Weight of the body floating = Weight of the body immersed in fluid

  Law of floatation = Density of the floating object / density of fluid

 As fluid is the freshwater here, the density of fluid will be 1000 kg/ m³.

                               = (979 kg/ m³) / ( 1000 kg/ m³)

                               = 97.9 %

A person is submerged when floating gently in fresh water about 97.9%.

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Answer:

n1 sin θ1 = n2 sin θ2      Snell's Law       (θ1 is the angle of incidence)

sin θ2 = n1 / n2 * sin θ1

sin θ2 = 2.4 / 1.33 * sin θ1

sin θ2 = 1.80 * .407 = .734

θ2 = 47.2 deg

By using the equations for parabolic motion, we proceed to present the answers for the paragraph seen in the picture: a) t ≈ 0.553 s, b) s = 2.212 m, c) s = 11.060 m.

A system is on parabolic motion if such system can be represented as a particle, that is, a system whose geometry is negligible, and its motion is a combination of horizontal movement at constant velocity and vertical uniformly accelerated movement due to gravity and all viscous and rotational effects are negligible.

The time required for the droplet to reach the ground is:

1.5 m = (1 / 2) · (9.807 m / s²) · t²

t = √[2 · (1.5 m) / (9.807 m / s²)]

t ≈ 0.553 s

And the horizontal distance traveled by the droplet is:

s = (4 m / s) · (0.553 s)

s = 2.212 m

Now, we apply the same procedure for the case of sneezing person:

1.5 m = (1 / 2) · (9.807 m / s²) · t²

t = √[2 · (1.5 m) / (9.807 m / s²)]

t ≈ 0.553 s

s = (20 m / s) · (0.553 s)

s = 11.060 m

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The current flows out of the junction will be Ten Ampere.

To find the answer, we have to know about the Kirchoff's Current Law (KCL).

Thus, we can conclude that the current flows out of the junction will be Ten Ampere.

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Mathematical order in atomic spectra was discovered by physics pioneers Balmer, Rydberg, and Ritz.

Atomic spectra are defined as the spectrum of the electromagnetic radiation emitted or absorbed by an electron during transitions between different energy levels within an atom.

When an electron gets excited from one energy level to another, it either emits or absorbs light of a specific wavelength. The collection of all these specific wavelengths of the atom in a given set of conditions like pressure, temperature, etc. is the atomic spectra of atoms. There are three types of atomic spectra and they are :

Using the Rydberg formula, it becomes easy to calculate the spectral lines. Following is the formula:

[tex]\begin{array}{l}\frac{1}{\lambda }=RZ^{2}(\frac{1}{{n}’^{2}}-\frac{1}{n^{2}})\end{array}[/tex]

Where,

R is the Rydberg constant (1.09737*107 m-1)

Z is the atomic number

n is the upper energy level

n’ is the lower energy level

λ is the wavelength of light

Spectral series of single-electron atoms like hydrogen have Z = 1.

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Answer:

It took [tex]\bf 4.07 \space\ \mathrm{s}[/tex] to travel.

Explanation:

To calculate the time taken to travel a distance of 122 m at a speed of 30 m/s, we can use the formula for speed:

[tex]\boxed{speed = \frac{distance}{time}}[/tex].

We can substitute the known values, and then solve for time:

[tex]30 = \frac{122}{\mathrm {time}}[/tex]

⇒ [tex]\mathrm{time } = \frac{122}{30}[/tex]

⇒ [tex]\mathrm{time } \approx \bf 4.07 \space\ \mathrm{s}[/tex]

Modem enables digital computers to communicate across different media, including telephone wires, cable lines, and radio waves.

A modulator-demodulator or modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. Modems converts or modulates the analog signals coming from telephone wire into digital form for example in form of 0 s and 1 s.

To transmit digital data, the sending modem must first modulate, or encode, a computer's digital signal into an analog signal that can travel over the phone line. The receiving modem must then demodulate, or decode, the analog signal back into a digital signal recognizable to a computer.

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If the observer and source are moving toward each other, then the frequency increases and the wavelength decreases.

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The difference between the observed points and the regression line points is equal to the correlation.

The strength and direction of a relationship between two or more variables are described by the statistical measure of correlation, which is given as a number. However, a correlation between two variables does not necessarily imply that a change in one variable is the reason for a change in the values of the other.

Regression expresses the relationship as an equation, whereas correlation assesses the strength of the linear link between two variables. The square of the correlation coefficient, also known as Pearson's r, between the observed and predicted values in a regression is sometimes referred to as R2.

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Simultaneous prompting method  involves providing a prompt with a 0 second delay and never increasing that delay.

The simultaneous prompting method is a technique created to reduce errors. It entails using a controlling prompt (i.e., one that causes the learner to give the right answer every time) right away after the instruction.

As a result, the learner never makes a mistake and always has access to reinforcement. It is a teaching strategy without flaws. To avoid or minimise errors, this prompt is always given with a zero-second delay or right away after the target stimulus (cue). Prior to training sessions, probe sessions are used to evaluate skill mastery.

Therefore, Simultaneous prompting method  involves providing a prompt with a 0 second delay and never increasing that delay.

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Answer:

Geothermal energy is heat that is generated within the Earth. It is a renewable resource that can be harvested for human use.

the location of the following countries are very near to sea level giving them easy access to the energy.

This is what I think is the answer.

pls tell me if any mistakes..

I hope it was helpful..

The thermodynamic efficiency of a heat engine that rejects heat at a rate of 20 mw when heat is supplied to it at a rate of 60 mw is 66.67%.

It is given that,

Rejected heat at the rate of 20 mw and supplied heat a rate of 60 mw.

It is required to find the thermodynamic efficiency of a heat engine.

As we know that

Work Done = Heat Supplied - Heat Rejected

Work Done = 60 mw - 20 mw

Work Done = 40 mw

So the efficiency of heat engine will be:

[tex]\eta=\frac{Work done}{Heat energy supply}[/tex]

[tex]\eta=\frac{40}{60}[/tex]×[tex]100\\[/tex]

η = [tex]\frac{2}{3}[/tex]×[tex]100\\[/tex]

η = 66.67%

Thus, thermodynamic efficiency of a heat engine that rejects heat at a rate of 20 mw when heat is supplied to it at a rate of 60 mw is 66.67%.

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Liquid and gas  forms of water will be present in a 1. 0 l flask at 303 k containing a visible amount of liquid water(the vapour pressure of water at 303 k is 31. 8 mmHg).

Because the problem mentions that there is liquid water visible in the flask, liquid must be one of the correct options. Additionally, liquid water has a vapour pressure of 31.8 mmHg at the given temperature, meaning there will 31.8 mmHg of gaseous water present as well, so the correct answer is liquid and gas.

Vapour pressure or equilibrium vapour pressure is defined as the pressure exerted by a vapour in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. The equilibrium vapour pressure is an indication of a liquid's evaporation rate.

It relates to the tendency of particles to escape from the liquid (or a solid). A substance with a high vapour pressure at normal temperatures is often referred to as volatile. The pressure exhibited by vapour present above a liquid surface is known as vapour pressure.

As the temperature of a liquid increases, the kinetic energy of its molecules also increases. As the kinetic energy of the molecules increases, the number of molecules transitioning into a vapour also increases, thereby increasing the vapour pressure.

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the answer is the mantle.

When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: chemical reaction

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

Whereas , When matter undergoes physical change, it doesn't become a different substance. Therefore, physical changes are often easy to reverse.

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Charge appeared on the plates of a 6.0 μf capacitor when it is charged to 40V is 240μC.

Capacitance of the capacitor is determined by the area of the plate of Capacitor and distance between the plates of capacitor.

Capacitor is dependent on the area of the plates, distance between the plates and medium present between the plates.

It is not dependent of the charge and voltage across the capacitor.

We know that Q = CV, where Q is the charge on capacitor, C is the Capacitance and V is the voltage applied across the capacitor.

Q = 6 × 10⁻⁶ × 40

Q = 240× 10⁻⁶ C

Q = 240 μC

Hence the charge on the plates of the capacitor is 240 μC.

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Decreases, increases

As the volume of the container decreases, the pressure of the air within it increases.

When the temperature is held constant, pressure decreases as volume increases and vice versa.

The amount of force delivered perpendicularly to an object's surface in relation to its area is known as pressure. Its abbreviation is "p" or "P."

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The change in Potential energy is =  662,292.459  J.

Here, to calculate the potential energy change we use the formula,

[tex]W= F \times d \times cos\theta[/tex]

Or, [tex]W= m\times g \times d \times cos\theta[/tex]

Here we are given,

d= Distance the car makes = 62. 2 m.

[tex]\theta[/tex] = Angle that the car make along the hill =  28. 3°

F= The amount of force affect on the car = [tex]m\times g[/tex] .

m= Mass of the car = 1234 kg.

g= Acceleration of gravity = 9.8 [tex]m/s^2[/tex]

Now we substitute the known values in the above equation,

[tex]W= m\times g \times d \times cos\theta[/tex]

Or, [tex]W= 1234 \times 9.8 \times 62.2 \times cos(28.3)[/tex]

Or, [tex]W= 662,292.459 J[/tex]

From the above calculation we can conclude that the amount of work done on the car is, 662,292.459 J.

We know, from the work energy theorem that,

The change in Potential energy = The work done on the mass.

So, From the above theorem the change in potential energy is 662,292.459 J.

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Answer:

v = λ f      wavelength * frequency

v = λ / P

v = 4.5 n / .007 sec = 643 m/s

Answer:

It's called, "Cytopathic effects."

a) U =  0 J

k = 0.383 J

E = 0.383 J

b) U = 0.0228 J

k = 0.155 J

E = 0.383 J

c) U = 0.1104 J

k = 0.272 J

E = 0.383 J

d) U = 0.248 J

k = 0.177 J

E = 0.383 J

The equations for kinetic energy is:

k= 1/2*m*[tex]v^{2}[/tex]

The equation for elastic potential energy is:

U= 1/2*ks*[tex]x^{2}[/tex]

Where,

m= mass of the block

v= velocity

ks= spring constant

x= displacement of the spring

U= 1/2*ks*[tex]x^{2}[/tex]

U= 1/2*552*[tex](0)^{2}[/tex]

  = 0 J

Kinetic energy:

k= 1/2*m*[tex]v^{2}[/tex]

k= 1/2*(1.05)*[tex](0.855)^{2}[/tex]

k= 0.383 J

Mechanical energy:

E= k + U

E= 0.383+0

E= 0.383 J

There will be no work done by friction or any other dissipative force, hence this energy will be conserved, or it will remain constant (like air resistance). This indicates that only spring potential energy will be created from the kinetic energy (there is no thermal energy due to friction, for example).

(b) spring potential = ?

U= 1/2* 457 N/m*[tex](0.01)^{2}[/tex]

U= 0.0228 J

Since the mechanical energy must remain constant, we may calculate the kinetic energy using the mechanical energy equation:

E= k + U

0.383= k + 0.0228

k= 0.383 - 0.228

k= 0.155

(c)spring constant when x= 0.02

U= 1/2*552*[tex](0.02)^{2}[/tex]

U= 0.1104 J

Using the equation of mechanical energy:

E= k +U

0.383= k+ 0.1104

k= 0.383 - 0.1104

k= 0.272 J

(d) U= 1/2*552*[tex](0.03)^{2}[/tex]

U= 0.2484 J

E= 0.383 J

k = E - U

k= 0.383- 0.206

k= 0.177

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The nebular hypothesis explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.

What hypothesis explains how our solar system probably formed?

What is the nebular theory ?

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