What does the N stand for in this formula?

Time to reach target / s---> B4.1, Distance fallen / m,----> B4.2,

The magnitude of the velocity change increases with lengthier acceleration. When acceleration is constant, the change in velocity is directly proportional to time. If velocity grows by a particular amount during a specific period of time, it ought to do so by an equal amount over an equal period of time.

The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t). This enables you to calculate the change in velocity in meters per second squared (m/s2). ​

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The ionic compound for [tex]MgBr_2[/tex] magnesium.

Magnesium bromide is the chemical compound known as [tex]MgBr_2[/tex].

We are aware that ionic compounds are made up of two ions, one of which is a positive-charged cation and the other a negative-charged anion. For instance, when we separate ionic compounds into their constituent ions, we obtain cations and anion.

(a), Breaking of [tex]$\mathrm{MgBr}_2$[/tex] into ions '

[tex]\left.\mathrm{MgBr}_2_(aq) \longrightarrow \mathrm{Mg}_{(\mathrm{aq})}^{2+}+2 \mathrm{Br}_{\left(a q_1\right)}{ }^2\right[/tex]

Cation formula [tex]$=Mg^{2+} (a q)$[/tex]

Anion Formula [tex]$=\mathrm{Br}^{\ominus}(a q)$[/tex]

(b) Breaking of [tex]$\mathrm{FeCl}_3$[/tex] into ions [tex]$\mathrm{L}$[/tex]

[tex]Fecl_{3(aq)}\rightarrow Fe^{3+}(aq)+3cl^-(aq)[/tex]

i.e Cation formula [tex]$=$ fe^ {+3}[/tex]

Anion formula [tex]$=cl^{\theta}(a q)$[/tex]

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Just as wavelength and frequency are related to light, they are also related to energy. The shorter the wavelengths and higher the frequency corresponds with greater energy.

So the longer the wavelengths and lower the frequency results in lower energy. The energy equation is E = hν. Frequency and wavelength are inversely related to one another, as shown by the equation v = f. For an electromagnetic wave, the connection between frequency and energy is as follows. The electromagnetic wave's energy (E) is equal to its frequency times Plank's constant (h) (f). This relationship is an illustration of a relationship that is directly proportional. The wavelength of the radiation has an inverse relationship with the energy of the photons. A wavelength's frequency and energy (E) drop as it gets longer. You may conclude from these equations that the wavelength gets shorter as the frequency rises. The wavelength lengthens as the frequency drops. The two main categories of waves are electromagnetic and mechanical.

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The percent composition by mass of nitrogen in NH[tex]_{4}[/tex]Oh (gram-formula mass = 35 grams/mole) is equal to 40% N.

Meaning of Nitrogen: Nitrogen (N), a nonmetallic element belonging to Periodic Table Group 15. It is a colorless, flavorless, and odorless gas that makes up the majority of the atmosphere on Earth and is a component of all living things.

You must divide the element's atomic mass (AM), which is 14 for nitrogen, by the total compound's molar mass (MM), then multiply the result by 100 to determine the percent composition of an atom by mass. The following is the formula for calculating percent composition.

[tex]=\frac{14}{35} *100[/tex]

[tex]=\frac{1400}{35}[/tex]

[tex]= 40[/tex]

Therefore the percent composition by mass of nitrogen in NH₄OH is

40% N

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Rita's momentum  is 294 kg.m/s.

The product of a particle's mass and velocity is called momentum. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum.

Given that Rita is riding a 7.0 kilogram bike at a velocity of 15 meters/second.

Mass of Rita = 42 kg.

Hence, her momentum is = mass × velocity

= 7.0 × 42 kg.m/s

= 294 kg.m/s.

Her momentum  is 294 kg.m/s.

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The error in the measurement of the area of the wall is 1.54 x 10⁻³ %.

Percent uncertainty is the ratio of error in measurement to the actual measurement multiplied by 100%.

The actual measurement of the area of the wall is calculated as follows;

Area = L B

where;

Area = 3.1 m  x  4.2 m

Area = 13.02 m²

The error in the measurement of the area of the wall is calculated as follows;

error = 0.01 m x 0.02 m

error = 2 x 10⁻⁴ m²

Percent uncertainty = error / actual measurement  x 100%

Percent uncertainty = ( 2 x 10⁻⁴ / 13.02 ) x 100%

Percent uncertainty = 1.54 x 10⁻³ %

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The equation =c/f relates wavelength and frequency. There is an inverse relationship between wavelength and frequency.

One crucial equation connects them all: The speed of light is equal to the frequency times the wavelength of any electromagnetic wave. If we know the other measurement, we can use this connection to calculate the wavelength and frequency of the any electromagnetic wave.

The distance between the crests of two waves is known as the wavelength, which also applies to troughs. The number of vibrations that pass across a certain area in a second is the frequency, which is expressed in seconds per cycle (Hz) (Hertz). This article discusses how wavelength and frequency relate to one another.

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An experiment with an a = 0.012 tail when N = 6 & Preal = 0.15 powered  is 1.0000

A scientific experiment where you do a series of actions and carefully track their outcomes to learn new knowledge. The students will conduct basic laboratory experiments. run, do, perform, or carry out an experiment.

Because it provides scientists with a set of well-organized steps to perform in order to reply to questions or assertions about the natural world, experimentation is essential to science. Additionally, experimenting produces vital data and results that help to verify the veracity and dependability of assertions made in an endeavor to fully know the world.

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The momentum of the performer and cart will decrease.  The momentum of the juggling pin increases. The overall momentum of the entire system will remain the same.

According to the law of conservation of momentum, the sum of the momentum of a body before and after the collision will be equal.

m₁.u₁ + m₂u₂ = m₁ v₁ + m₂.v₂

where m₁ & m₂ is the mass of objects, u₁ & u₂ are their initial speed while v₁ & v₂ is final speed.

Given the initial velocity of the performer and cart is u₁ = 3.5 m/s

The final velocity of the performer and cart = 3.4 m/s

As the velocity of the performer and cart decreases therefore its momentum will increase.

The juggling pin was at rest initially, but its velocity increased from 0 to 6 m/s. Therefore its momentum increases.

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Realism is characterised by its emphasis on social issues, common difficulties, life's realities, and largely middle- and lower-class people.

1. A propensity to be realistic and practical rather than creative or visionary 2. depicting people and things in literature and art in their true, non-idealized state. likewise see naturalism.

A literary genre known as realism depicts typical day-to-day events as they actually take place in reality. This frequently concentrates on persons from the middle and lower classes and on well-known locations.

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According to diagram, the approximate abundance of oxygen atoms in the galaxy is 1/1000 that of hydrogen.

If we look along the vertical axis, we find that the point for oxygen lies about halfway between the points  10−4 and 10−2, near to 10−3, which is 0.001 or 1/1000. Therefore, the abundance of oxygen atoms is about 1/1000 that of hydrogen.

The general trend in elemental abundance in our galaxy: There is a general trend of increasing abundance with increasing atomic number. Exceptional rule is that elements with odd atomic numbers tend to be more abundant compared to elements with even atomic numbers. These abundances decrease smoothly from atomic number of 6 to atomic number of 20. These abundances fluctuate randomly.

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Answer:e all of the above

Explanation:

In that, it states that similar poles repel, unlike poles attract and that the force is proportional to the inverse square of the distance between two poles.

The pushing or tugging of an object is considered to be exerting force. Whenever two things interact, push and pull are the result. Stretching and crushing are further examples of force expressions.

An external agent known as a force has the power to alter a body's state of rest or motion. There is a direction and a magnitude to it. When applying force, it is important to consider both the direction of the force and the actual application of the force.

You should emphasize this as the main point of your education at this level because a push or a pull is referred to as a force. In our daily lives, forces appear in many different ways.

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Covalent solids exhibit low melting points and boiling points. Therefore, option B is correct.

In a covalent compound, the covalent bond is formed by the mutual sharing of electrons that can hold all molecules together. Shared electron pairs are difficult to give away as nuclei of two elements together share the electrons therefore these types of bonds are stronger.

A covalent network solid can be described as a chemical compound in which the atoms are bonded by covalent bonds in a continuous network. The covalent solids are generally brittle in nature.

The melting points for covalent solids are generally low while high melting points for ionic solids.

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Answer:

answer is c

Explanation:

....................

If a lathe turning at a feed rate is used to decrease a long section the stock metal rod's diameter from a diameter of to, the material's specific energy M RR = 109.96 cm3/min.

At any cross-section section of a canal, measured just above channel bottom, the total energy per cent weight of fluid. Where y is the flow depth, v seems to be the average velocity, & g is gravitational attraction, makes up the formula for specific energy, or E.

The proportion of necessary energy (E) towards the volume of removed material is referred to as specific energy (SE) (V). This variable can be used to calculate how much energy is expended on removing material.

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At a washing station at sea level, the water is pushed 408 meters uphill and flows out of a faucet at 45 meters per second.

According to the needs of the application, the discharge water is pressured. The water is pressurized to 3000psi to 5000psi for cleaning applications. They are extremely highly pressurized in the pressure ranges of 30000psi to 50000psi for cutting purposes. Water that must be pushed in a specific length of time is called a flow rate.

Wastewater or sewage is gathered at a pump station and kept there in a chamber. When the level of collected sewage reaches its maximum, a high-pressure integrated pump is used to lift the sewage through a discharge system. 

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Answer:

The striped magnetic pattern develops because, as oceanic crust pulls apart, magma rises to the surface at mid-ocean ridges and spills out to create new bands of ocean floor. Later, after the planet’s magnetic field flips again, the next stripe of new ocean floor aligns its polarity.

Explanation:

hope this helps!

Kinetic energy decreases and gravitational potential energy increases when the planet moves from position 1 to position 2, but the total energy in the planet-star system stays constant. Hence, option (C) is correct.

A group of non-stellar objects in or out of orbit around a star or star system that are gravitationally bonded together is known as a planetary system.

In general, planetary systems consist of one or more planets, though they can also include other objects such dwarf planets, asteroids, natural satellites, meteoroids, comets, planetesimals, and circumstellar discs.

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In physics, the symbol λ (lambda) is used to represent the wavelength of a wave.
What is wave equation?
Wave equation is an equation that describes the behavior of waves, such as sound and light. It is used to analyze wave patterns and their interactions. Wave equations can be used to describe the propagation of waves in different media, such as air, water, and solids. Wave equations are also used to study wave phenomena, including resonance, diffraction, interference, and scattering.
It is typically used in the wave equation, which describes the relationship between the speed, frequency, and wavelength of a wave. λ is usually represented by the Greek letter lambda and is used to calculate the speed of a wave in a medium or vacuum. λ can also be used to calculate the frequency of a wave when the speed and wavelength are known.
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Elements with 2 electrons are called as Group 2 Elements.

As the name says elements with 2 electrons.

Such elements have 2 electrons in their outermost orbit, due to the presence of these 2 electrons in the outermost orbit such elements are not stable.

So, for becoming stable and completing the octet in the outermost orbit the elements need to lose their 2 electrons which are present in the outermost orbit.

Some common examples of such elements is Magnesium, Calcium, and Strontium.

The valency of such elements is 2.

As we know, valency is nothing but the number of electrons which are either lost or taken by the atom for completing their octet.

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When an object is moved from rest at a point A to rest at point B in a gravitational field, the net work done by the field depends on the mass of the object (4) the path taken between A and B only.

The work done depends on the mass, acceleration due to gravitation and height. Hence, the distance between point A and point B affects the net work done by the objects.

Work done = mass X acceleration due to gravity X height

= W = mgh

where,

Mass of the object = m

Acceleration due to gravity = g

Height between the object = h

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The balance of the equation 2Br2 + CaCO3 + H2O = CaBr2 + CO2 + 2HBrO is ensured by the equal distribution of each element between the reactants and the products.

Bromination can take place in a number of ways, depending on the reactant. A saturated molecule is bromine using the free radical technique. An unsaturated hydrocarbon undergoes bromination through an addition mechanism. An aromatic compound is bromined by an electrophilic substitution procedure.

Meta-bromo-benzoic acid and hydrogen bromide are the end products of the chemical reaction between bromine and benzoic acid described above. The bromine water test is a simple way to tell fructose from glucose. The glucose undergoes an oxidation reaction to produce glucuronic acid after interacting with the bromine water solution. Since bromine water has a modest oxidizing effect, fructose does not oxidize in it.

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Due to the fact that sound waves travel further in water than radar and light waves do, sonar, which stands for Sound Navigation and Ranging, is useful for exploring and mapping the ocean.

How does underwater sonar operate?

By sending ultrasonic waves into the water and listening for the returned echoes, a sonar may find these items. The distribution, density, and movement of a school of fish can be seen on the Sonar display at an angle of 360° or 180° in all directions.

Can sonar identify undersea humans?

To "see" in the water, sonar uses sound waves. To find underwater shipwrecks, bodies of people, and other objects, as well as to determine the circumstances of their drowning, sonar is a very valuable tool.

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The average acceleration is (0.88 m/s2) given that (85 m/s - 60 m/s)/28.57 s.

A. The distance travelled is 0 metres, and the speed is 0.88 metres per second.

B. The distance travelled is 2,000 metres, and the speed is 1.14 metres per second.

C. The distance travelled is 0 metres, and the speed is 70.0 metres per second2.

D. The distance travelled is 2,000 metres, and the speed is 80.0 metres per second.

E. The distance travelled is 0 metres, and the speed is 0.70 metres per second2.

Displacement is a change in position over a predetermined period of time. The displacement is 0 since the initial and final positions are equal.

-

Average acceleration is the result of changing time and velocity. As a result, the average acceleration is (0.88 m/s2) given that (85 m/s - 60 m/s)/28.57 s.

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The mass of an airplane is  79878 kg.

The product of a particle's mass and velocity is its momentum. Momentum is a vector quantity, meaning it has both magnitude and direction. According to Isaac Newton's second equation of motion, the force acting on a particle equals the time rate of change of momentum.

Given that: an airplane is flying at 246 m/s and has a momentum of 1.968 x 10^7 kg-m/s.

Hence, mass of the airplane = momentum of the airplane/speed

=  (1.968 x 10^7 kg-m/s)/246 m/s

= 79878 kg.

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The product of 1.24 and 107 kilograms expressed in standard form is 1.3268 x 10² kg.

A standard form is a form of writing equations, numbers, or expressions using a certain set of rules.

Standard form is a method often used by scientists to express large number into a more condensed form, usually in power of ten.

The product of 1.24 and 107 kilograms expressed in standard form is calculated as;

1.24 x 107 kg = 132.68 kg

in standard form = 1.3268 x 10² kg

Thus, numbers expressed in standard forms makes it very easy to represent and recall the number.

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Answer:

max

Explanation:

in this case Chris said that the car stops which means that its energy has disappear we know that this is wrong because energy can't just disappear energy can't be destroyed and Sam told that energy can't be the towards so it should have become potential energy in order for a body to be up converted into potential energy we need to change its position in respect to gravity in this case is position is not change in respect to gravity where is Max is correct because due to the production of wastage energy each energy and sound energy is produced due to friction and that's what stop the car

The equivalent capacitance between points a and b for the combination of capacitors shown in Figure 1 is equal to C1 + C2 + C3 + C4.

The equivalent capacitance between points a and b for the combination of capacitors shown in Figure 1 can be determined by evaluating the capacitances of each individual capacitor and then adding them together. The capacitance of C1 is directly connected between points a and b, so it is simply C1. The capacitance of C2 and C3 are in parallel, so the equivalent capacitance of these two is C2 + C3. Similarly, the capacitance of C4 is in parallel with C2 + C3, so the equivalent capacitance of the combination is C1 + C2 + C3 + C4. Therefore, the equivalent capacitance between points a and b for the combination of capacitors shown in Figure 1 is equal to C1 + C2 + C3 + C4.

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The speed of paramecium is given. The de-Broglie's wavelength of the particle is 3.313 × 10⁻²¹ m.

Given that, the speed of paramecium v = 1 mm/s = 1 × 10⁻³ m/s

Volume of paramecium = 2× 10⁻¹³ m³

Density of paramecium = 1000 kg/m³

Mass of paramecium is given by the formula, m = ρ v

⇒ 1000 × 2× 10⁻¹³ = 2× 10⁻¹⁰ kg

The de-Broglie's wavelength of the particle is,

λ = h/p = h/mv = (6.626 × 10⁻³⁴)/[2× 10⁻¹⁰ × 10⁻³] = 3.313 × 10⁻²¹ m

where, h is plank's constant

p is momentum

Thus, the required de-Broglie's wavelength of the particle is 3.313 × 10⁻²¹ m.

The question is incomplete. The complete question is 'If the paramecium has a volume of 2E-13m³ and a density equal that of water, what is the de-Brogile wavelength when in motion?

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