A horse accelerates uniformly from 0 to 20 mi/h in 2 seconds. What is the acceleration?A. 10 mi*h-1B. 10 mi*-2C. 10 mih-1s-1D. 10 mi*h-2

No two electrons can have the same set of quantum numbers .

Pauli made a significant advance when he proposed the notion of adding a fourth quantum number to the three that were previously used to represent the quantum state of an electron. Physically speaking, the first three quantum numbers made sense since they had to do with how the electron moved about the nucleus.

The following rule was developed by Austrian physicist Wolfgang Pauli. The quantum numbers of any two electrons cannot be identical.

To put it another way, no two electrons can be in the same state. The Pauli exclusion principle is the name given to this proposition since it forbids electrons from being in the same state.

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Answer:

Explanation:

operantly conditioned; positively reinforced

The solar system models of Ptolemy and Aristotle were Earth-Centered, while the solar system models of Copernicus and Galileo were Sun-Centered.

Ptolemy and Aristotle proposed geocentric models, where the Earth was considered the center of the universe, and the Sun, along with other celestial bodies, revolved around it. They believed that the planets moved in complex paths to account for their observed motions.

On the other hand, Copernicus and Galileo advocated heliocentric models, with the Sun at the center. Copernicus proposed a Sun-Centered model where the planets, including Earth, orbited the Sun in simple and more accurate elliptical paths. Galileo's observations using the telescope further supported the heliocentric model.

These advancements in understanding the solar system challenged the prevailing geocentric views, leading to a significant shift in scientific understanding. The Sun-Centered models of Copernicus and Galileo provided a more accurate explanation for the motions of celestial bodies, eventually leading to the acceptance of the heliocentric model in modern astronomy.

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Answer: \(36.22\ V\)

Explanation:

Given

Energy in a capacitor \(E=7.77\times 10^{-7}\ J\)

Charge \(Q=4.29\times 10^{-8}\ C\)

Energy of a capacitor is given by

\(E=\dfrac{1}{2}CV^2=\dfrac{1}{2}QV\quad [\text{Q=CV}]\)

Insert the values

\(E=\dfrac{1}{2}QV\\\\\Rightarrow 7.77\times 10^{-7}=\dfrac{1}{2}\times 4.29\times 10^{-8}\times V\\\\\Rightarrow V=3.622\times 10\\\\\Rightarrow V=36.22\ V\)

Thus, the voltage around the capacitor is \(36.22\ V\)

Answer:

Greatest gravitational energy is at "C".

The planet has to do work "against" the field to get to "C".

Also, if m v R (angular momentum) is constant then as R increases v must decrease for this term to be constant and KE = 1/2 M v^2  must decrease also to get to point C.

A particle in uniform circular motion requires a net force acting towards the center of the circle. So option A is correct.

The net force acting on a particle moving in a circular path is always directed towards the center of the circle. The motion of a particle in a circular path is characterized by the direction of its velocity and acceleration at each instant in time. These two vectors are always perpendicular to each other.The magnitude of the net force required to keep a particle in uniform circular motion depends on the mass of the particle and its velocity, as well as the radius of the circular path it is following. This force is referred to as the centripetal force and is always directed towards the center of the circle.The centripetal force is provided by some other object, such as a string or a gravitational field, which acts to pull the particle towards the center of the circle. Without this force, the particle would continue to move in a straight line tangent to the circle, rather than in a circular path.Therefore option A is correct.

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Fluid clutches are used on equipment that is subject to frequent stopping.

Fluid couplings are used in various equipment in which the rotational torque must be transferred smoothly and without shock from the motor to the driven machine.

They are characterized by high transmittable torque and power, quick response times, and a good damping effect.

It absorbs and smooths torsional vibrations from the driveshaft, resulting in a longer lifespan of the drive components.

Equipment that is subject to frequent stopping.

For equipment that is subject to frequent stopping, fluid clutches are commonly used.

This is due to the fact that fluid clutches may be started and stopped frequently without causing harm or wear to the machine.

For this reason, fluid clutches are commonly used in machinery that needs a smooth start and stop, which is important to avoid any harm to the machinery.

In addition, fluid clutches are also less likely to slip, making them ideal for continuous running machines.

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Fluid clutches are used on equipment that is subject to frequent stopping. The correct answer is option C.

A fluid clutch is a type of mechanical device that transmits torque and rotational power from one shaft to another via a fluid.

Fluid clutches are used to couple two rotating shafts and control the amount of torque transferred between them.

Fluid clutches are used in many types of industrial machinery, including printing presses, machine tools, and pumps, as well as in cars and other vehicles.

These clutches can handle higher torque and power loads than most other types of clutches, making them well suited for heavy-duty applications.  

They are most commonly used on equipment that is subject to frequent stopping, such as industrial machines and vehicles, but can also be used on equipment that is subject to other forms of stress, such as misalignment and continuous running. So, the correct answer is option C.

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Answer:

Ub = 221.99m/s

Explanation:

(Ma x Ua)+(Mb x Ub) = (Ma + Mb)V

(331 x 3.87)+(208 x Ub) = (331 + 208)88

(1257.8) + (208 x Ub) = 47432

(208 x Ub) = 47432 - 1257.8

(208 x Ub) = 46174.2

Ub = 46174.2/208 = 221.99m/s

Ub = 221.99m/s

Answer:

4.75

Explanation:

M1V1 + M2V2 = M1V3 + M2V4

[(331*3.87) , 90°] + 0 = [(331*0.888) , 90°] + M2V4

M2V4 = 987.042 , 90°

divide through by M2

V4 = 4.75 m/s east

This measurement demonstrates the conductivity of a certain material. When compared to rubber, which has poor electrical conductivity and high electrical resistance, metal, for instance, has high electrical conductivity and low electrical resistivity.

Electrical resistivity's physical opposite is electrical conductivity. This measurement demonstrates how well a certain material can conduct an electric current.

Rubber has a poor electrical conductivity and a high electrical resistivity, whereas metal has a high electrical conductivity and a low electrical resistance.

We are aware of the following thanks to the values that have been provided:

J = 6.00 10 13 A / m 2 and E = 100 V / m

The following equation provides the current density in terms of the electric field:

J = σ E

Here, E is the electric field, J is the current density, and is the electrical conductivity.

σ = J / E

The known values are then substituted.

σ = ( 6.00 × 10 − 13 A / m 2 ) / ( 100 V / m )

σ = ( 6.00 × 10 − 15 / m ) / ( 100 V )

The corresponding unit for V / A is.

Condense the units.

σ = 6.00 × 10 − 15 Ω − 1 m − 1.

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To position two oppositely charged objects to give them the lowest potential energy (PE), they should be placed as close together as possible.

This is because the PE of a charged object is inversely proportional to the distance between the objects. As the distance between the objects decreases, the PE also decreases.

Therefore, to minimize the PE( potential energy ) between two oppositely charged objects, they should be positioned as close together as possible, without actually touching each other.

This configuration represents the state of maximum stability and minimum potential energy, as the attractive electrostatic forces between the objects are maximized when they are in close proximity.

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Two resistors of resistance, 100 and 200 are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in 100 N to that in 200 in a given time is: 4:1 Option 2

This is further explained below.

Generally, Electric circuit, current route. An electric circuit contains a source that powers the current, such as a battery or generator, devices that consume current, such as lights, electricity, or computer, and connecting cables or transmission lines.

In conclusion,The thermal energy created in 100 N to that in 200 in a particular period is divided by both by a factor of 4:1 Option 2

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Answer: 60

Explanation: if u hit it it will have impact and the impact added 10n

When the Bowen ratio is low and negative, it means the surface is wet, and the latent heat flux is significant, while the sensible heat flux is minor. Because of Arctic sea ice's nature, the Bowen ratio is expected to be small and negative.

During summer, the Arctic sea ice's surface temperatures are often above 0° C, with a temperature inversion expanding from the surface to altitudes of some hundred meters.

For such conditions, the sensible heat flux H is expected to be positive, while the latent heat flux H L is expected to be small or zero. The Bowen ratio B is expected to be small and negative.

Let us discuss each term in more detail. Sensible heat flux (H):The rate of heat transfer from the Earth's surface to the atmosphere due to the temperature difference is referred to as the sensible heat flux. The earth surface warms up due to solar radiation, and then the warm surface transfers heat to the cooler air. The air then heats up and rises, creating convection currents that aid in the heat transfer process.

Sensible heat flux is positive when heat moves from the surface to the atmosphere.Latent heat flux (H L ):The heat required for a phase transition, such as a liquid converting to a gas, is referred to as latent heat. The energy required to convert a material from one phase to another is referred to as latent heat. Evaporation and transpiration are the two main processes that contribute to the latent heat flux.

Because Arctic sea ice's surface temperature is typically above the melting point of ice during summer, the latent heat flux is expected to be small or zero.

Bowen ratio (B):The Bowen ratio is a measure of the ratio of sensible heat flux to latent heat flux. It's a dimensionless quantity that helps to understand the surface's evapotranspiration efficiency.

When the Bowen ratio is low and negative, it means the surface is wet, and the latent heat flux is significant, while the sensible heat flux is minor. Because of Arctic sea ice's nature, the Bowen ratio is expected to be small and negative.

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1. Sensible heat flux (H) is negative, indicating heat transfer from the surface to the atmosphere.
2. Latent heat flux (H_L) is positive, indicating heat transfer from the atmosphere to the surface through evaporation.
3. Bowen ratio (B) is negative, indicating that the sensible heat flux is larger than the latent heat flux. The magnitude of the Bowen ratio can vary depending on the specific conditions.

In summer, surface temperatures over Arctic sea ice are often above 0°C, and there is a temperature inversion that extends from the surface to altitudes of a few hundred meters.

1. Sensible heat flux (H): The sensible heat flux is the transfer of heat between the surface and the atmosphere due to temperature differences. In this case, the sensible heat flux is expected to be negative. This means that heat is being transferred from the surface (warmer) to the atmosphere (cooler). The magnitude of the sensible heat flux can vary depending on the temperature difference between the surface and the atmosphere, but it is generally larger when the temperature difference is greater.

2. Latent heat flux (H_L): The latent heat flux is the transfer of heat between the surface and the atmosphere due to the evaporation and condensation of water. In this case, the latent heat flux is expected to be positive. This means that heat is being transferred from the atmosphere (warmer) to the surface (cooler) through the process of evaporation. The magnitude of the latent heat flux depends on factors such as the availability of moisture and the temperature difference between the surface and the atmosphere. It can be larger when there is more moisture available for evaporation and when the temperature difference is greater.

3. Bowen ratio (B): The Bowen ratio is the ratio of sensible heat flux to latent heat flux. It provides information about the relative importance of sensible and latent heat transfer processes. In this case, the Bowen ratio is expected to be negative. This indicates that the sensible heat flux is larger than the latent heat flux. The magnitude of the Bowen ratio can vary depending on the specific conditions, but it is generally larger when the sensible heat flux is dominant.

To summarize:
- Sensible heat flux (H) is negative, indicating heat transfer from the surface to the atmosphere.
- Latent heat flux (H_L) is positive, indicating heat transfer from the atmosphere to the surface through evaporation.
- Bowen ratio (B) is negative, indicating that the sensible heat flux is larger than the latent heat flux. The magnitude of the Bowen ratio can vary depending on the specific conditions.

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Due to the Moon's orbit being five degrees off-center from Earth's orbit around the Sun, lunar eclipses don't happen every month and the Moon typically passes above or below the shadow.

Paul Doherty, a senior scientist at the Exploratorium, explains why this isn't the case: because the moon's orbit is skewed in relation to Earth's path around the sun, it frequently passes below or above Earth. A solar eclipse is not produced at those times because it does not cross the dividing line between the sun and the Earth.

Eclipses of the sun and the moon happen equally frequently. Because Earth's shadow on the Moon during a lunar eclipse is significantly greater than the shadow the Moon casts on Earth during a solar eclipse, lunar eclipses are more widely seen. As a result, a lunar eclipse is more likely to be seen than a solar eclipse.

A entire or partial occlusion of one celestial body by another along an observer's line of sight results in an eclipse. When the Moon moves in front of the Sun, either completely or partially obstructing its disc, a solar eclipse takes place.

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The bond angle of the molecule to the nearest degree is 120 degrees.

According to the valence shell electron pair repulsion theory (VSEPR). We know that the bond angle that an atom has with its neighbors which also call the dihedral angle of the compound is affected by the number of atoms that surround the central atom in the molecule.

Let us recall that when we have two atoms that surround the central atom then we are going to have a three atom compound which has a trigonal planar geometry and has a bond angle of 120 degrees.

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Answer: oxygen

Explanation: Helium burns into carbon and carbon combines with helium to make oxygen.

Answer:

The internal core collapses, and heats up, until it is hot enough to fuse helium into larger atoms, for instance, by combining three helium atoms into carbon. At this same time, some helium will fuse with that carbon to produce oxygen. ... it becomes essentially a free-for-all for creating heavier and heavier atoms.

Explanation:

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Answer:

in a plane flying above Earth

Explanation:

Gravity is the force that draws  objects toward center of the earth. If you throw an object up on the earth's surface, you will notice that it will fall back to the ground due to the earth's gravitational pull on the object.

However, the further one goes from the earth's surface, the lesser the gravitational pull. Therefore the cat will experience less gravitational pull in an airplane flying at a higher altitude.

Answer:

b

Explanation:

because the metalloids are the thing in the middle

The tangential speed which ,the bob  must have so that it moves in a horizontal circle with the string always making an angle θ from the vertical is v = Sin θ ( \(\sqrt[]{Lg/Cos}\) θ)

The linear component of any object's speed that moves in a circle is its tangential speed. At the point when an item moves in a roundabout way a good ways off r from the middle, then the body's speed is coordinated digressively at any moment.

From free body diagram of the bob, tension in x and y is calculated using,

T Cos(θ) = mg

T Sin(θ) =  mv²  / r

Solving the given equation to find tangential speed we get ,

T Cos(θ) /TSin (θ) = mv² / r(mg)

Tan(θ) = v²/ rg

v = (\(\sqrt[]{rgtan}\)θ)

r = L Sin θ

v = Sin θ ( \(\sqrt[]{Lg/Cos}\) θ)

The above equation is the tangential speed, v , that the bob must have so that it moves in a horizontal circle with the string always making an angle θ from the vertical axis.

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Dropping a can from a higher elevation  affects greater impact compare to  dropping a can from a lower elevation.

Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is compressed or stretched, its potential energy increases.

If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy. It is capable of performing more work when raised.

Potential energy is a system attribute, not a property of a single body or particle.

The potential energy of the can on higher elevation is greater than the potential energy of the can on  lower elevation. That is why, dropping a can from a higher elevation  affects greater impact compare to  dropping a can from a lower elevation.

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The electric field strength E at any position may be described as the electric force F exerted per unit positive electric charge q at that point, or simply E = F/q.

The resultant force is doubled if the second, or test, charge is twice as large; nonetheless, their quotient, the measure of the electric field E, stays constant at any given position.

The intensity of the electric field is determined by the source charge rather than the test charge. Strictly speaking, the introduction of a tiny test charge, which has its own electric field, alters the existing field somewhat. The electric field may be conceived of as the force per unit positive charge that would be exerted before the presence of the test charge disturbs the field.

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Answer:

melanie ran 8.3 meters per second

Explanation:

I think thats right, hope it helps.

Answer:

α = 60 degr

Explanation:

To find the magnitude and direction of the resultant force, we can use the law of cosines and the law of sines:

Magnitude:

Let's call the forces A = 10N and B = 20N. The angle between them is 60 degrees. The magnitude of the resultant force R can be found using the formula:

R² = A² + B² - 2AB cosθ

where θ is the angle between the forces. Substituting the values we get:

R² = (10N)² + (20N)² - 2(10N)(20N) cos(60)

R² = 100N² + 400N² - 200N²

R² = 300N²

Taking the square root of both sides, we get:

R = sqrt(300N²) = 10 sqrt(3) N

Therefore, the magnitude of the resultant force is 10 sqrt(3) N.

Direction:

The direction of the resultant force can be found using the law of sines. Let's call the angle between the resultant force and the 10N force α, and the angle between the resultant force and the 20N force β. Then we have:

sin α / R = sin β / B

Substituting the values we get:

sin α / (10 sqrt(3) N) = sin 60 / 20N

Simplifying, we get:

sin α = (10 sqrt(3) N / 20N) sin 60

sin α = sqrt(3) / 2

Taking the inverse sine of both sides, we get:

α = 60 degrees

Therefore, the direction of the resultant force is 60 degrees from the 10N force

Answer:

250

Explanation:

pressure = depth x density of liquid x g

5000 = 2 x density x 10

density = 250

Answer:

If you went to work your trap muscles you don't need a ton of fancy gym equipment. Here are four trapezius exercises you can perform using your own body.

The dura mater forms the tough and fibrous outer sac of the meninges. The meninges are the protective layers that surround the brain and spinal cord. The three layers of the meninges are the dura mater, arachnoid mater, and pia mater.

The dura mater is the thickest and outermost layer of the meninges. It is a fibrous membrane that is attached to the skull and the vertebrae of the spine. The dura mater forms a tough, outer sac that surrounds and protects the brain and spinal cord.

The dura mater is composed of two parts: the outer dura mater and the inner dura mater. The outer dura mater is made up of dense connective tissue that is rich in collagen fibers. It is attached to the skull and the vertebrae of the spine, forming a tough, protective barrier around the brain and spinal cord. The inner dura mater is a thinner layer of connective tissue that is rich in blood vessels and lymphatic vessels. It is also known as the arachnoid mater. The inner dura mater is attached to the outer dura mater, forming a space called the subarachnoid space, which contains cerebrospinal fluid (CSF).

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Answer:

0.8sec

Explanation:

Σf= 7.5-5= 2.5 N to the left

Σf=m*a=>2.5=2a=>a=1.25 m/s²

Lets say that the speed is 1m/s

a=speed-0/x=>x=1/1.25=>x=0.8

Hence the time will be 0.8sec

Answer: Healthy Criticism

Explanation:

Answer:

intellectual curiosity

Explanation: