what is the partial pressure of oxygen when this mixture is delivered at a total pressure of 7.5 atm a t m ?

When a seismic wave encounters a sharp change in rock velocity, both reflection and refraction transmission of the wave heeds the quantitative relationships for energy partitioning at the velocity interface and are determined by the reflection coefficient and the transmission coefficient.

The reflection coefficient, denoted as R, represents the ratio of the energy reflected back to the incident energy. It can be calculated using the formula \(R = (V2 - V1)^2 / (V2 + V1)^2\)

where V1 is the velocity of the incident wave and V2 is the velocity of the transmitted wave. The reflection coefficient ranges from 0 to 1, where 0 indicates complete transmission and 1 indicates complete reflection.

The transmission coefficient, denoted as T, represents the ratio of the transmitted energy to the incident energy. It can be calculated using the formula \(T = 4V1V2 / (V2 + V1)^2\)

The transmission coefficient also ranges from 0 to 1, where 0 indicates complete reflection and 1 indicates complete transmission.

The energy partitioning at the velocity interface depends on the values of the reflection and transmission coefficients. When the incident wave encounters a sharp increase in velocity, a portion of the energy is reflected back into the original medium, while the remaining energy is transmitted into the new medium. The magnitude of reflection and transmission depends on the contrast in velocities between the two media. As the contrast increases, a larger portion of the energy is reflected, and vice versa. The partitioning of energy is important in seismic exploration and helps in understanding the subsurface properties and structures.

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The amount of loss in the mechanical energy of tha ball during the bounce is 7.35J (Option B)

E₁ = mgh₁

E₁ = 0.5 × 9.8 × 5

E₁ = 24.5 J

Next, we shall determine the energy during the bounce. Details below:

E₂ = mgh₂

E₂ = 0.5 × 9.8 × 3.5

E₂ = 17.15 J

Finally, we shall determine the loss in the amount energy during the bounce. This is shown below:

E = E₁ - E₂

E = 24.5 - 17.15

E = 7.35J

Thus, the lost energy is 7.35J (Option B)

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Answer:

gravity

Explanation:

gravity pulls anything with with weight towards the earth.

Answer

The reason why this occurs is because if there is any apparent wind being pushed towards the direction of the door, there will be an attempt of equalizing pressure and thus it will slam, or close very loudly when you even just push it shut with some effort.

Explanation

This has happened to me a variety of times, I would have the garage open, and it would be a little bit windy, and when I tried to close it, it would slam shut.

Airflow is a significant factor in the pressure appliance.

Your question at the end is correct (Differences in air pressure.)

Apologies for the late response, but I was interested in this as well.

1. The wavelength of the emitted photon is approximately 2.10 meters, corresponding to the microwave region of the electromagnetic spectrum.

2. The frequency of the photon is 1.427 ×\(10^8 s^(^-^1^)\).

3. The effective magnetic field experienced by the electron in these states is approximately 1.022 Tesla.

4. Comparing it to the effective magnetic field due to spin-orbit coupling (18 T), the effective magnetic field experienced by the electron in the hyperfine interaction is significantly smaller.

5. The hyperfine interaction is weaker than the spin-orbit coupling in terms of magnetic field strength.

1. To calculate the wavelength of the emitted photon, we can use the equation:

λ = c / ν

where λ is the wavelength, c is the speed of light in vacuum (approximately 3.00 × \(10^8\) m/s), and ν is the frequency of the photon emitted.

Using the given energy difference of 5.9 × \(10^(^-^6^)\) eV, we need to convert it to joules to match the units in the equation. The conversion factor is 1 eV = 1.602 × \(10^(^-^1^9^)\) J.

E = 5.9 × \(10^(^-^6^)\)eV * 1.602 × \(10^(^-^1^9^)\) J/eV = 9.447 ×\(10^(^-^2^6^)\)J

Now, we can calculate the frequency:

ν = E / h

where h is Planck's constant (approximately 6.626 × \(10^(^-^3^4^)\) J·s).

ν = 9.447 ×\(10^(^-^2^6)\)J / (6.626 × \(10^(^-^3^4^)\) J·s) = 1.427 × \(10^8 s^(^-^1^)\))

2. The frequency of the emitted photon is 1.427 × 10^8 s^(-1).

3. To determine the part of the electromagnetic spectrum, we can use the equation:

c = λν

Substituting the values of c and ν, we can solve for λ:

λ = c / ν = (3.00 × \(10^8\)m/s) / (1.427 ×\(10^8 s^(^-^1^))\)≈ 2.10 m

The calculated wavelength is approximately 2.10 meters, which corresponds to the microwave region of the electromagnetic spectrum.

4. The effective magnetic field experienced by the electron in these states can be calculated using the formula:

ΔE = μBΔB

where ΔE is the energy difference between the two levels (5.9 ×\(10^(^-^6^)\)eV), μB is the Bohr magneton (approximately 9.274 ×\(10^(^-^2^4^)\) J/T), and ΔB is the effective magnetic field experienced by the electron.

Solving for ΔB:

ΔB = ΔE / μB = (5.9 × \(10^(^-^6^)\) eV * 1.602 ×\(10^(^-^1^9^)\) J/eV) / (9.274 ×\(10^(^-^2^4^)\)J/T) ≈ 1.022 T

The effective magnetic field experienced by the electron in these states is approximately 1.022 Tesla.

5. Comparing the result to the given effective magnetic field due to spin-orbit coupling (18 T), we can see that the effective magnetic field experienced by the electron in the hyperfine interaction is significantly smaller (1.022 T). This indicates that the hyperfine interaction is weaker compared to the spin-orbit coupling in terms of magnetic field strength.

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Answer:

a low protein diet helps you lose weight because lack of protein can make you lose muscle mass

Explanation:

It cuts your strength it makes it harder to keep your balance and slows your metabolism and later you get tired easily it leads to muscle wasting overtime and sheds your fat

The repulsive electrical force  between protons is: \(F = 9.279 \times 10^{-8} \,{\rm{N}}\)

The repulsive electrical force between two protons 3.5 * 10-15 m apart from each other in an atomic nucleus is calculated by Coulomb's law, which states that the force between two charged particles is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

So, the repulsive force between two protons 3.5 * 10-15 m apart is given by:

\(F = (1.602 \times 10^{-19})^2 / (3.5 \times 10^{-15})^2\)

\(F = 9.279 \times 10^{-8} \,{\rm{N}}\)

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Answer:

the final velocity of the skater after throwing the snowball is 3.17 m/s.

Explanation:

Given;

mass of the ice skater, m₁ = 72 kg

initial velocity of the ice skater, u₁ = 3.1 m/s

mass of the snowball, m₂ = 0.21 kg

initial speed of the snowball, u₂ = 28.0 m/s

Let the final velocity of the skater after throwing the snowball = v

Apply the principle of conservation of linear momentum to determine v;

m₁u₁ + m₂u₂ = v(m₁ + m₂)

72 x 3.1   +  0.21 x 28  = v(72 + 0.21)

229.08 = v(72.21)

v = 229.08 / 72.21

v = 3.17 m/s

Therefore, the final velocity of the skater after throwing the snowball is 3.17 m/s.

Answer:

It would depend on the amount of years.

Explanation:

I don’t think this is very helpful-

Have a great day!

Anygays-

Answer:

HEAT?

Explanation:

A person gets a suntan on a beach is not an example of convection. Therefore, the correct option is option C.

The process of convection involves the movement of such a heated fluid, including such air or water, in order to transfer heat. Natural convection is caused by the fact that most fluids have a propensity to expand when heated, becoming less dense and rising due to the increased buoyancy.

Natural convection is caused by the fact that most fluids have a tendency to expand when heated, becoming less dense and rising due to the increased buoyancy. The air inside a heated room or the water inside a kettle are heated uniformly thanks to circulation brought on by this effect. A person gets a suntan on a beach is not an example of convection.

Therefore, the correct option is option C.

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Your question is incomplete but most probably your full question was,  

Which one of the following is not an example of convection?

a) Smoke rises above a fire.

b) An eagle soars on an updraft of wind.

c) A person gets a suntan on a beach.

d) Spaghetti is cooked in water.

e) An electric heater warms a room.  

The work must be done to push the cylinder 11 cm deeper into the water is 0.116 Joule. The result is solved by an integration formula.

A cylinder floats in the water. The diameter is 5.0 cm.

Find the work must be done to push the cylinder 11 cm deeper into the water!

The force needed to overcome to sink the cylinder can be expressed as

F = PA

F = ρghA

The area of cylinder base is

A = πr²

A = π(d/2)²

A = π(5.0/2)²

A = 19.625 cm²

A = 1.9625 × 10⁻³ m³

The work to push the cylinder until the depth x = 11 cm can be solved by using an integration.

dW = F dh

\(W = \int\limits^x_0 {\rho g h A} \, dh\)

\(W = A \rho g (\frac{h^{2} }{2} )^{x} _{0}\)

\(W = A \rho g (\frac{x^{2} }{2} )\)

\(W = 1.9625 \times 10^{-3} \times 1000 \times 9.8 \times \frac{0.11^{2}}{2}\)

W = 0.116 Joule

Hence, to push the cylinder 11 cm deeper into the water, it needs the work of 0.116 Joule.

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Answer:

0.369 V

Explanation:

Given :

Capacitance ( c ) = 650 × 10–4 F

Charge ( q ) = 24 × 10–3 C

We are asked to find potential difference ( v )!

We know:

q = c v

= > v = q / c

Putting values here we get:

= > v = ( 24 × 10–3 ) / ( 650 × 10–4 ) V

= > v = 240 / 650 V

= > v = 24 / 65 V

= > v = 0.369 V

Therefore, potential difference between the plates is 0.369 V

MAIN ANSWER- \(5/\sqrt{21} sec\)

supporting answer-When a body is moving, it experiences resistance because it interacts with its surroundings. This resistance is a friction force. Friction opposes relative motion between systems in contact but also allows us to move, a concept that becomes obvious if you try to walk on ice. Friction is a common yet complex force, and its behavior still not completely understood. Still, it is possible to understand the circumstances in which it behaves.

body of the answer- a block of mass m with 10kgs is sliding on a inclined plane with frictionless surface

final answer- \(5/\sqrt{21} sec\)

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Answer:

Effects of Interia

As a more familiar example of inertia, think about riding in a car. ... If the car comes to a sudden stop, your body tends to keep moving forward. When the car starts moving again, your body tends to stay at rest. You move forward because the car seat exerts an unbalanced force on your body.

According to Newton's third law, action and reaction are equal and opposite.

According to Newton's third law, action and reaction are equal and opposite.

When the car suddenly stops due to the braking force, a reaction force counterbalances it which tends to move the passengers forward hence they all jolt forward.

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Answer:

fundamental units

Explanation:

Solution :

Philosophy is idealism

The idealism is considered as a philosophical approach where the main belief is that 'ideas' are the only true realities and it is the only thing that is worth knowing.

Philosophy in cynicism

In cynicism philosophy, it is belief that the purpose of the life is to live in the virtue and in agreement with the nature. They are practiced by the cynics.

Philosophy in stoicism

Stoicism is a philosophy that hails from Rome and Greece. It beliefs in life that provides maximum positive emotions of the people, and it reduces negative emotions. they also believes that it helps people to hone their virtues of the characters.

Answer:

go to the vault

Explanation:

The work done in case a) is positive, in case b) is negative and in case c) is positive.

Work is said to be done when the displacement is occur in the direction of the applied force.  

W = F×d×cosθ

Where F is the force, d is the displacement and θ is the angle between the displacement and the direction of the force.

In case a) as the work is done against the direction of the gravity so the work is positive. In case b) the weight of the buckets acts in downwards direction, that is the direction of the acceleration due to gravity. So the work is negative. In case c) the bucket were lowered, it means the displacement is in the direction of the applied force. Hence the work done is positive.

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The distance of the bee at its farthest point from the hive can be determined by analyzing the motion of the bee. At t = 13 s, the distance of the bee from the hive can be calculated using the given information.

To find when the bee is farthest from the hive, we need to identify the point at which the bee's velocity is zero. This occurs when the bee reaches its maximum height or distance from the hive. At this point, the bee starts to change direction and move back towards the hive.

The distance of the bee at its farthest point from the hive can be determined by analyzing the motion of the bee. If we have additional information about the bee's motion, such as its initial position, velocity, or acceleration, we can use the appropriate equations of motion to calculate the exact distance.

At t = 13 s, we can calculate the distance of the bee from the hive by using the position-time relationship. If we know the initial position of the bee and its velocity, we can determine the distance it has traveled at that specific time.

To provide a more specific answer, additional information about the bee's motion, such as its initial position and velocity, is needed.

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“The electric flux through a closed surface is equal to the net charge inside the surface divided by the physical constant. This law is a fundamental principle in electrostatics and is expressed mathematically as E.ds = Q/ε0.

Gauss’s Law for electric fields is a fundamental principle in physics, specifically in the study of electrostatics. The law describes the relationship between the electric flux and the distribution of electric charges in a given space. Simply put, it states that the electric flux through a closed surface is proportional to the total amount of electric charges inside the surface. In mathematical terms, the statement of Gauss’s Law for electric fields is as follows: E.ds = Q/ε0Here, E.ds represents the electric flux through a closed surface, Q represents the total electric charge enclosed within the surface, and ε0 is the physical constant known as the permittivity of free space. This equation can be used to calculate the electric field created by a given charge distribution, provided that the electric flux through a closed surface around the distribution is known.

Gauss’s Law for electric fields states that the electric flux through a closed surface is proportional to the net electric charge enclosed within the surface. This law is a fundamental principle in electrostatics and is expressed mathematically as E.ds = Q/ε0.

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The change in the wavelength of light due to the relative motion of the source and observer is given by the equation:

Δλ/λ = v/c

where Δλ is the change in wavelength, λ is the original wavelength, v is the relative velocity between the source and observer, and c is the speed of light.

Plugging in the values given in the problem, we get:

Δλ/6.2 × 10−7 m = 3.9 × 104 km/s / 3.0 × 105 km/s

Simplifying this expression, we get:

Δλ = 1.02 × 10^-7 m

Therefore, the change in the wavelength of light that is received by an observer on the Earth is 1.02 × 10^-7 m.

If you build a common-source amplifier with an NMOS input transistor, and you want a current source as a load, and that current source goes from VDD to a node, the type of current source would be the diode-connected transistor.

An NMOS current source implemented as a diode-connected transistor is a type of bipolar transistor circuit that creates a constant current from an input voltage. The collector and emitter of the bipolar transistor are connected together in the circuit, effectively turning the transistor into a diode. The main advantage of diode-connected transistors is that they can generate currents of a specific magnitude and not be influenced by changes in the supply voltage.

The current generated by the diode-connected transistor is almost completely determined by the physical characteristics of the transistor and the biasing resistors used in the circuit. Another advantage of diode-connected transistors is that they may be cascaded in series to create current sources of various sizes. These devices have been commonly used to generate reference currents, voltage-to-current (V-I) converters, and bias currents in linear integrated circuits. So therefore diode-connected transistor is the type of current source, if you build a common-source amplifier with an NMOS input transistor, and you want a current source as a load, and that current source goes from VDD to a node.

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The average force that acts on the driver is equal to 1100N.

The equations of motion have described the relationship between the velocity, acceleration, time, and displacement of a moving object.

The mathematical expressions of the equations of motions can be written as:

\(v= u+at\)

\(S = ut+\frac{1}{2}at^2\)

\(v^2-u^2=2aS\)

Given, the automobile is traveling with velocity, u = 72 Km/hr = 20m/s

The final velocity of the automobile, v = 0

The time for which the driver comes to rest, t = 0.10 sec

From the 1st equation of motion: v = u + at

0 = 20 + a (0.10)

a = - 200 m/s²

The mass of the driver, m = 55 Kg

The average force, F = ma = 55 × 20 =  1100 N

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To determine the force P required to pull the post out of the ground when a 400-lb vertical force is applied, we need to consider the forces involved in the situation. Let's assume the post is being pulled vertically upward.

When the post is being removed, there are two forces acting on it:

1. The applied force P pulling upward.

2. The downward force exerted by the ground, which is equal to the weight of the post and the 400-lb vertical force applied.

For the post to be in equilibrium, the sum of the forces acting on it must be zero.

The force equation can be written as:

P - (Weight of the post + 400 lb) = 0

To solve for P, we need to convert the weight of the post to pounds. Let's assume the weight of the post is W pounds.

Therefore, the equation becomes:

P - (W + 400 lb) = 0

Simplifying the equation, we find:

P = W + 400 lb

The force P required to pull the post out of the ground is equal to the weight of the post plus 400 lb.

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Answer:

1. A hiking

2. C

3. B

4. D

5. E

we have learned how to calculate the index of refraction, angles of refraction, magnification, and orientation of polarizing filters. We have also learned about the properties of virtual images and the behavior of light as it passes through different media. n=2.5, θ2=14.5°, hi=-0.10 m, m=-0.2.

The index of refraction can be calculated using the formula n=c/v, where c is the speed of light in a vacuum and v is the speed of light in the material. Substituting the values given, we get n=2.5.

The angle of refraction can be calculated using the formula n1sinθ1=n2sinθ2, where n1 and n2 are the refractive indices of the media and θ1 and θ2 are the angles of incidence and refraction, respectively. Substituting the values given, we get θ2=14.5°.

The magnification of the image can be calculated using the formula m=-di/do, where di is the distance of the image from the lens and do is the distance of the object from the lens. Substituting the values given, we get m=-0.57. The height of the image can be calculated using the formula hi=h X m, where h is the height of the object. Substituting the values given, we get hi=-0.10 m.

To completely block the light, the two filters should be perpendicular to each other. In other words, one should be oriented vertically and the other horizontally.

A virtual image is produced if the object is between the focal point and the lens. The image will be upright, reduced, and on the opposite side of the lens from the object.

The magnification of the image can be calculated using the formula m=-di/do, where di is the distance of the image from the lens and do is the distance of the object from the lens. Substituting the values given, we get m=-0.2.

The speed of light decreases as it passes from air into a piece of glass. Its wavelength becomes shorter, but its frequency remains the same.

In summary, we have learned how to calculate the index of refraction, angles of refraction, magnification, and orientation of polarizing filters. We have also learned about the properties of virtual images and the behavior of light as it passes through different media.

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Answer:

D

Explanation:

Spherical aberration in the primary mirror of a reflecting telescope is generally avoided by making the mirror surface a parabolic shape.

Spherical aberration in the primary mirror of a reflecting telescope is a significant issue that can affect image quality. This problem arises when light rays entering the telescope at different distances from the central axis converge at different points, leading to a blurred image. To avoid spherical aberration, telescope designers typically use a parabolic-shaped mirror instead of a spherical one.

A parabolic mirror ensures that all incoming light rays, regardless of their distance from the central axis, converge at a single focal point. This results in a sharp and clear image, free from the distortion caused by spherical aberration. In contrast, using a spherical mirror would cause the light rays to converge at multiple points, leading to a blurry image.

It is important to note that other factors, such as the refraction of light by turbulent currents of air with differing densities, can also cause image distortion. These atmospheric effects, however, are not directly related to the telescope's mirror shape.

In some advanced telescope systems, rapidly changing the tilt and shape of an intermediate mirror can help compensate for atmospheric disturbances. This adaptive optics technique allows for improved image quality by correcting for the atmospheric distortions in real-time. Nevertheless, the primary mirror's parabolic shape remains crucial for avoiding spherical aberration and maintaining optimal image clarity in a reflecting telescope.

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Answer:

f = 0.365 Hz

Explanation:

The angular velocity of a simple pendulum is

           w = \(\sqrt{g/L}\)

angular velocity and frequency are related

           w = 2π f

we substitute

           2π f = \(\sqrt{g/L}\)

Let's find the initial length of the pendulum

            L = \(\frac{g}{4\pi^2 } \ f_o\)

            L₀ = \(\frac{9.8}{4 \pi ^2} \ 0.4\)

            L₀ = 0.6206 m

Indicates that the length of the chord triples

             L = 3 L₀

             L = 3 0.6206

             L = 1.8618 m

let's find the frequency

             f = \(\frac{1}{2\pi } \ \sqrt{\frac{9.8}{1.8618} }\)

             f = 0.365 Hz

To find the acceleration components from magnitude and angle, you can use the following equations ax = a * cos(θ) and ay = a * sin(θ)

The acceleration components from magnitude and angle:

Where ax and ay are the x and y components of the acceleration, a is the magnitude of the acceleration, and θ is the angle.
By plugging in the values for magnitude and angle into these equations, you can find the acceleration components in the x and y directions.

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Answer:

B

Explanation:

because. it reduces the distance between the earth