Calculate the force of attraction between a cation with a valence of +2 and an anion with a valence of -2, the centers of which are separated by a distance of 2.5 nm.

Answer:

Spring Tides

Explanation:

Phosphorus has three shells according to the Bohr model.

The Bohr model is a simplified atomic model that represents electrons orbiting the nucleus in discrete energy levels or shells. The first shell can hold up to two electrons, the second shell can hold up to eight electrons, and the third shell can hold up to 18 electrons.

Phosphorus has 15 electrons, so according to the Bohr model, the first shell has two electrons, the second shell has eight electrons, and the third shell has five electrons. .

To know more about the Bohr model, here

brainly.com/question/3964366

#SPJ4

Long-run equilibrium is a dynamic process that is influenced by a variety of factors, including market forces, competition, technological progress, and government intervention.

In economics, there are several factors that can contribute to long-run equilibrium, including:

Market forces: In a free market economy, prices are determined by the forces of supply and demand. If the demand for a good or service increases, the price will rise, which will encourage suppliers to produce more, eventually resulting in long-run equilibrium.

Competition: In a competitive market, firms will strive to produce goods and services as efficiently as possible, which will drive down costs and result in lower prices. This will increase demand and eventually lead to long-run equilibrium

Technological progress: Technological progress can lead to increased productivity and efficiency, which can lower costs and increase the supply of goods and services. This can result in lower prices and increased demand, leading to long-run equilibrium.

Government intervention: Government policies such as price controls, subsidies, and taxes can affect the supply and demand for goods and services, and can either help or hinder the achievement of long-run equilibrium.

Learn more about long run equilibrium here

brainly.com/question/13869483

#SPJ4

The new electric field in the capacitor is E = V/d = (Q/A)d/εoεr/d = (Q/Aεoεr).

An electric field is a physical preach and it by the electric charges that extra a force and other charges extracting or appealing them electric conducted by electric charges with a statinary or moving the electric field is a vector field meaning that it is both electric and direction strength of electric field is measured in moles per meter electric field and used in a variety of application from our generation to medical treatment.

Part (a) After inserting the dielectric, the capacitance is now:

The capacitance of a parallel-plate capacitor can be calculated using the equation C = εoεrA/d, where εo is the permittivity of free space, εr is the relative permittivity of the medium between the plates, A is the area of the plates, and d is the distance between the plates. Since the dielectric medium has a relative permittivity of 4.0, the new capacitance of the capacitor is C = εoεrA/d = εo(4.0)(a)/d.

Part (b) After inserting the dielectric, the voltage across the capacitor is now:

The voltage across a capacitor is related to the amount of charge stored on it, which is proportional to the capacitance. Since the capacitance has increased, the voltage across the capacitor has also increased. The new voltage across the capacitor is V = Q/C = Q/(εoεrA/d) = (Q/A)d/εoεr, where Q is the charge stored in the capacitor.

Part (c) After inserting the dielectric, the charge stored in the capacitor is now:

The charge stored in a capacitor is related to the capacitance, so the charge stored in the capacitor has increased due to the increase in capacitance. The new charge stored in the capacitor is Q = Cv = (εoεrA/d)v = (A/d)vεoεr, where v is the voltage across the capacitor.

Part (d) After inserting the dielectric, the electric field in the capacitor is now:

The electric field in a capacitor is related to the voltage across the capacitor and the distance between the plates. Since the voltage across the capacitor has increased and the distance between the plates has not changed, the electric field has increased. The new electric field in the capacitor is E = V/d = (Q/A)d/εoεr/d = (Q/Aεoεr).

To know more about electric field click-
https://brainly.com/question/14372859
#SPJ4

An area where atomic magnets point in the same direction is called a ferromagnetic domain.

Area is a quantity that measures the size of a two-dimensional surface or shape. It is expressed in square units such as square centimetres (cm2), square metres (m2) or square kilometres (km2). Area is used to describe the size of a garden, a house, a room, a city and much more. It can also be used to calculate the amount of material required for a project, such as paint, carpet or tiles. Knowing the area of a shape can help to calculate costs, and to make sure that enough materials are ordered.

In a domain, all the atoms are aligned in the same direction, creating a powerful magnetic field. This magnetic field is responsible for the magnetic properties of materials such as iron and nickel. When a ferromagnetic domain is exposed to an external magnetic field, it will become magnetized and align itself in the same direction. The strength of the magnetic field produced is based on the number of atoms in the domain and the alignment of the atoms.

To know more about area click-
https://brainly.com/question/28012687
#SPJ4

To find the unemployment rate, we first need to determine the number of unemployed individuals in Country X. We can do this by subtracting the number of employed individuals from the labor force:

200,000 - 175,000 people are unemployed.

25,000 unemployed people

(25,000 / 200,000) times 100 equals the unemployment rate.

12.5% is the unemployment rate.

Therefore, Country X has a 12.5% unemployment rate.

To know more about unemployment rate , check out :

https://brainly.com/question/27413958

#SPJ4

Rods play key role in dark adaptation and detect gray, black and white. : true.

Rods are photoreceptor cells in the retina of eye that are specialized for low-light vision and they contain a photopigment called rhodopsin, which is sensitive to light and helps in seeing in dimly lit environments.

In dark conditions, rods become highly sensitive, allowing to see even in very low light levels and this is known as dark adaptation. It takes about 30 minutes for the rods to fully adapt to the dark. As the light levels increase, sensitivity of the rods decreases and cones takes over as the primary source of visual input.

To know more about Rods of eyes, refer

https://brainly.com/question/1758388

#SPJ4

It is untrue to say that an object's speed must be constant if its acceleration is zero.

A shift in velocity can occur in either its magnitude (speed), its direction, or both. Even if the speed may be constant in uniform circular motion, there is always an accompanying acceleration since the direction of the velocity is continually changing.

Explanation: In contrast to velocity, which has both magnitude and direction, speed is a vector and is therefore more than just a number. To keep the velocity constant, the speed must remain constant. A body can change directions while maintaining a constant speed (velocity).

To know more about acceleration visit:-

https://brainly.com/question/12550364

#SPJ4

The capacitance of a capacitor depends on the area of the plates, the distance between the plates, and the permittivity of the dielectric material and the correct option is (D)

The capacitance of a capacitor depends on the area of the plates, the distance between the plates, and the permittivity of the dielectric material between them.

It is clear that capacitance is directly proportional to the area of the plates and the permittivity of the dielectric material, and inversely proportional to the distance between the plates.

Now, let's come back to the question, which asks about the factor that does not affect the capacitance of a capacitor. The options given are the separation between the plates, the size of the plates, the charges on the plates, and none of the above.

The correct answer is option D, i.e., none of the above.

To know more about capacitor here

https://brainly.com/question/17176550

#SPJ4

Answer:

D always downward because it is negative

Georgia’s Power charge for the month (30 days) if their going rate is 11 cents/kWhr wil be $1.82. the correct option is option B.

The energy used by the dryer in 30 minutes can be calculated as follows:

Energy used = Power x Time Energy used = 1.1 kW x 0.5 hours (30 minutes converted to hours)

Energy used = 0.55 kWh

The total energy used by the dryer in 30 days can be calculated as:

Total energy used = Energy used per day x Number of days Total energy used = 0.55 kWh/day x 30 days

Total energy used = 16.5 kWh

The cost of the energy used can be calculated as:

Cost = Total energy used x Rate Cost = 16.5 kWh x $0.11/kWh

Cost = $1.815

Therefore, the answer is (B) $1.82.

Learn more about energy used here brainly.com/question/958081

#SPJ4

Answer:

It would be as if everything on the surface were suddenly  given a speed of over 1000 mph.

V = S / t

V = 25000 mi (1 rotation of earth) / 24 hours in one day)

V > 1000 mph       speed  of objects on surface due to rotation

No, when ABS (Anti-lock Braking System) activates, you do not need to pump the brakes.

ABS is a safety feature in modern cars that prevents the wheels from locking up during hard braking or in slippery conditions, which could cause the car to skid and lose control. When the ABS system detects that a wheel is about to lock up, it rapidly pulses the brakes on that wheel to prevent it from stopping rotating. This helps to maintain traction between the tires and the road, allowing the driver to maintain steering control and come to a stop safely. When ABS activates, you should keep your foot firmly on the brake pedal and let the system do its job. The pulsing or vibrations that you may feel in the brake pedal are normal and indicate that the ABS system is working properly. You should continue to steer the car in the desired direction and avoid any sudden movements, while the ABS system helps to slow down the car safely.

Pumping the brakes can actually interfere with the ABS system and reduce its effectiveness. So, it's important to trust the ABS system and let it do its job to ensure maximum safety during emergency braking situations.

To know more about ABS please refer: https://brainly.com/question/30723642

#SPJ4

Answer:

When traveling in circular motion with constant speed,

the instantaneous acceleration vector necessarily points toward the center.

Thus, the center is “straight up” from the cited point.

(a) Since the center is “straight up” from (4.00 m, 4.00 m),

the x coordinate of the center is 4.00m.

(b) To find out “how far up” we need to know the radius. Using a=

r

v

2

​

 we find

r=

a

v

2

​

=

12.5m/s

2

(5.00m/s)

2

​

=2.00m.

Answer

As the earth is an oblate spheroid, its radius near the equator is more than its radius near poles. Since for a source mass, the acceleration due to gravity is inversely proportional to the square of the radius of the earth, it varies with latitude due to the shape of the earth.

Explanation:

The coating bends light that passes through it and

prevents the light from reaching the user's eyes. The correct answer is option three.

This refers to a layer or film spread over a surface for protection or decoration. Coatings are specified as organic or inorganic according to the nature of their binder. Organic coatings are those that have an organic binder. Inorganic coatings are those that have an inorganic binder such as a silicate.

There are basically three types of coating name:

 Learn more about coating on

https://brainly.com/question/29515649

#SPJ1

On Mars planet were rock formations that looked like bears recently discovered. NASA astronomers have found a bizarre rock formation on the surface of the red planet, resembling a bear's face.

NASA (National Aeronautics and Space Administration) is a United States government agency that is responsible for the country's civilian space program and for research in space exploration, aeronautics, and science. NASA was established in 1958 in response to the Soviet Union's launch of the first artificial satellite, Sputnik. The agency's mission is to explore space, conduct research, and develop new technologies that benefit society.

NASA has achieved many significant accomplishments in space exploration, including sending the first humans to the moon and launching numerous spacecraft to explore the planets and other celestial bodies in our solar system. The agency also operates the International Space Station, a collaborative effort with other countries to conduct research and study the effects of long-term space travel on the human body.

To learn more about NASA visit here:

brainly.com/question/29890206

#SPJ4

Electrons are  responsible for creating electrical charge.

Describe electrical charge.

When two materials rub against one another or come into touch, an electrical charge is produced. Electrons can actually rub off of one thing and onto another when the materials are in touch. This does not imply that any two materials will move electrons when rubbed together.

There are instances when the protons and electrons in an atom's outermost shells are not strongly attracted to one another. It is possible to force these electrons out of their orbits. They can move from one atom to another by exerting force. Electricity is made up of these moving electrons.

To learn more about electrical charge use link below:
https://brainly.com/question/2373424

#SPJ4

This is the downward-pulling force of gravity acting on the mass of the elevator. This is the force the elevator experiences from the cable, which balances out the gravitational pull and supports the elevator's weight.

The force of attraction between two mass-containing objects is known as gravitational force. The gravitational pull between two objects is inversely proportional to their squared distances and inversely proportional to their masses.

Isaac Newton's law of universal gravitation, which asserts that the equation determines the force of gravity between two objects, describes this.

[tex]F = G \times (m1 \times m2) / r^2[/tex]

where F is the force of gravity, G is the gravitational constant approximately [tex](6.67 \times 10^-11 N \frac{m^2}{kg^2}), m1[/tex]

Therefore, gravitational and tension force are the forces.

Learn more about force here:

https://brainly.com/question/13191643

#SPJ4

10 ml is equivalent to 2 teaspoons (tsp).

ml is an abbreviation for milliliter, which is a metric unit of volume commonly used in the scientific and medical fields. On the other hand, tsp is an abbreviation for teaspoon, which is a unit of volume commonly used in cooking and baking.

1 milliliter is equivalent to approximately 0.20288 teaspoons (tsp). Therefore, to convert milliliters to teaspoons, we can use the following conversion factor:

1 ml = 0.20288 tsp

To convert 10 ml to tsp, we can simply multiply 10 ml by the conversion factor:

10 ml x 0.20288 tsp/ml = 2.0288 tsp

Rounding to the nearest tenth, we get:

10 ml ≈ 2.0 tsp

Therefore, 10 ml is equivalent to 2 teaspoons (tsp).

To know more about Unit conversion here:

https://brainly.com/question/19420601#

#SPJ11

Answer:

1. C. can be affected

2. B. in the opposite direction as the electric field

3. C. the charge's velocity and the magnetic field

4. I am sorry I have no answer for this one :(

Explanation:

1. Yes they actually can be affected because they are interacting with another magnectic field

2. The force exerted on a negatively charged particle by the electric field is always in " the direction opposite that of the electric field itself. "

3. In the context of the electric field as the set of almost all electric field vectors in a region of space, the most simplest kind of an electric field is a uniform electric field

When a boxer moves into an oncoming punch, the force experienced is (C) increased

The reason that moving into an oncoming punch increases the force experienced is due to the principles of momentum and force. When two objects collide, the total momentum of the system is conserved,

A boxer moving into an oncoming punch, the force experienced is increased. This is because the force of the punch is added to the force of the boxer's movement. When the boxer moves into the punch, the relative speed between the punch and the boxer is increased, which increases the momentum and thus the force of the impact.

In addition, moving into the punch can also reduce the distance over which the punch is applied, which further increases the force experienced.

Read more about Conservation of Momentum:

https://brainly.com/question/30631749

#SPJ4

A terrestrial telescope is a refracting telescope used to view distant earthly objects. The light source is the light falling from a distant object.

A terrestrial telescope is used to view enlarged, erect images of distant objects on the earth surface. There are three lenses in a terrestrial telescope. Objective lens, eye lens and erecting lens.

The working principle is refraction. The three convex lenses converge the rays to produce an image. The light from a distant object fall on the telescope. The incident rays falling on the objective lens is refracted and the intermediate image is formed. This image falls on the erecting lens and another intermediate image is formed.

The image from the erecting lens will act as the object for the eye lens. As light passes through the eye lens, an enlarged erect image is formed.

So the light source is the light from the distant object.

For more information regarding terrestrial telescope, kindly refer

https://brainly.com/question/16870574

#SPJ4

A group of atoms with like poles pointing in the same direction is referred to as a magnetic field or simply a magnetic.

A magnetic field is a field that is created by a magnet or a moving electric charge. The field exerts a force on other magnets or moving electric charges, and is described mathematically as a vector field. In a magnetic field, all of the like poles (north or south) will be pointing in the same direction, producing a net magnetic force. This force can be used to do work, such as generating electricity or producing mechanical motion.

Magnetic fields are an important part of our everyday lives and play a crucial role in many technologies, such as electric motors, generators, and MRI machines. They are also a fundamental aspect of the universe, as they are produced by the motion of electrically charged particles in stars and other celestial objects.

To know more about Magnetic field, visit:

brainly.com/question/14411049

#SPJ4

If the time period of the pendulum in earth is 1 seconds, then the length  L is 0.24 m. If length in mars is L/2 and acceleration due to gravity is 1/3rd of that of earth, the time period of the pendulum on mars is 1.216 seconds.

The time period of oscillation of a pendulum is the time taken to complete oscillation. It is related to the length l, and acceleration due to gravity g as:

T = 2π √l/g

T for earth = 1 s

g for earth = 9.8 m/s²

then l = T/4π² × g

l = 1/4π²× 9.8 m/s²

 = 0.24 m

If in mars L = L/2 = 0.24 /2 = 0.12 m

g = 9.8 m/s²/3 = 3.22m/s²

Then time period T = 2π × √0.12 m/3.22m/s²

T = 1.216 s.

Therefore, the time period of the Rover's pendulum in mars is 1.216 seconds.

Find more on period of oscillation:

https://brainly.com/question/14596666

#SPJ9

Answer:

Explanation:

The speed of a wave is a product of its wavelength and frequency

Wavelength is inversely proportional to frequency

Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies.

The answer is shorter

Bodily injury due to slips and falls is considered a physical hazard from conditions involving: surface residues.

In general, injuries can be caused by:

Learn more about bodily injury at

https://brainly.com/question/4401423

#SPJ4

If the Earth's axis were vertical instead of tilted, there would be no seasonal variation in the amount of incoming solar radiation at the equator.

Currently, the Earth's axis is tilted at an angle of approximately 23.5 degrees relative to its orbit around the sun. This causes the amount of incoming solar radiation at the equator to vary over the course of the year, with the highest amounts of incoming radiation occurring during the solstices and the lowest amounts occurring during the equinoxes.

If the axis were vertical, the amount of incoming solar radiation would be more consistent throughout the year, but the poles would receive less solar radiation overall.

To know more about the solar radiation, here

brainly.com/question/16525532

#SPJ4

a. The Arrhenius equation

What is  Arrhenius equation?

The Arrhenius equation is a mathematical expression that describes the relationship between the rate constant of a chemical reaction and temperature. The equation states that the rate constant of a reaction is proportional to the frequency factor (A), which is related to the activation energy (Ea) and the absolute temperature (T) according to the following formula:

k = Ae^(-Ea/RT)

where:

k is the rate constant,

A is the frequency factor,

Ea is the activation energy,

R is the gas constant, and

T is the absolute temperature.

The Arrhenius equation is a useful tool for predicting the effect of temperature on the rate of a chemical reaction. By measuring the rate constant at different temperatures, it is possible to determine the activation energy of the reaction, which provides important information about the mechanism of the reaction. The Arrhenius equation is widely used in the fields of chemistry, biology, and material science to study the kinetics of reactions and to design and optimize processes that involve chemical reactions.

To know more about Arrhenius equation , visit:

https://brainly.com/question/13467424

#SPJ4

The correct answer is a. The Arrhenius equation. The dependence of the rate constant on temperature is expressed by the arrhenius equation.

The Arrhenius equation is a mathematical expression that describes the relationship between the rate constant of a chemical reaction and temperature. The equation states that the rate constant of a reaction is proportional to the frequency factor (A), which is related to the activation energy (Ea) and the absolute temperature (T) according to the following formula:

[tex]k = Ae^(-Ea/RT)[/tex]

where:

k is the rate constant,

A is the frequency factor,

Ea is the activation energy,

R is the gas constant, and

T is the absolute temperature.

The Arrhenius equation is a useful tool for predicting the effect of temperature on the rate of a chemical reaction. By measuring the rate constant at different temperatures, it is possible to determine the activation energy of the reaction, which provides important information about the mechanism of the reaction. The Arrhenius equation is widely used in the fields of chemistry, biology, and material science to study the kinetics of reactions and to design and optimize processes that involve chemical reactions.

To know more about Arrhenius equation , visit:

brainly.com/question/13467424

#SPJ4