an object floats in water, with 40 %% of its volume submerged. part a what is its approximate density?

If n and k are equal, the rate of a process that follows Avrami equation is 0.093 s.

Here, n is a constant with an usual range of 1 to 4 and K(T) is indeed a thermally activated, air temp constants (K(T) = Ko exp [E/kT]). The nucleation and growth terms that are time- and temperature-dependent have both been absorbed by constant K(T) in this form.

For volume precipitates inside the placed directly by one-dimensional (1D) growth, the Avrami kinetic notation is equal to 1, for precipitates on the surface followed by 1D growth from the surface inside the material, to 2, for quantity nucleation and 2D growth, and to 4, for volume crystallization and 3D growth.

Avrami Kinetics-compliant reactions occur at a rate of 0.093 s1.

Given data:

n = 1.7

k = 0.007

let's assume y = 0.5

where : n = 1.7, y = 0.5, k = 0.007,

Insert values into equation ( 2 )

t = 10.74 secs

Rate = 1 / t = 1 / 10.74

= 0.093 s⁻¹

We may then state that 0.093 s is the reaction that follows Avrami kinetics.

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Beta decay process is occurring when an unstable nucleus releases radiation in the form of an electron particle .

Radioactive decay is a process that involves the emission or release of a particle or energy as one atom changes its form into another . Radioactive decay can be alpha decay which involves emission of helium ions from the nucleus of an unstable atom . Beta decay is accompanied by the release of an electron and  transformation of a proton into a neutron in the nucleus .Beta decay can be further classified into three processes - electron emission , positron emission and electron capture .

Beta decay process is occurring when an unstable nucleus releases radiation in the form of an electron particle .

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The radio station's broadcast wavelength. 299792458/95700000=3.133m . λ=[tex]\frac{3.10^{8}m/s }{95.90.10^{6}Hz }[/tex] =3.38m

Frequency of a wave is defined as the total amount of waves generated in a second. Frequency is the measurement of the quantity of vibrations per second. As an example, consider the following: If five full waves are created in a second, their frequency is 5 hertz (Hz), or 5 cycles every second.

The two primary frequency distribution types utilized in data analysis are cumulative and relative frequency distributions. Both depend on incidence, which in descriptive and inferential statistics refers to how frequently a particular event happens within a particular data set.

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the total distance traveled is three at T equaling three times the period.

Any position as a function of time can be described as simple harmonic motion using the following two components: The distance between the motion's centre and either extremity is known as amplitude. Period: The time required for a motion to complete one full cycle.

The object moves in a simple harmonic motion with an amplitude of X and a period of T when it is knocked out of balance. As the object moves through equilibrium, its top speed happens. The time T decreases as the spring stiffness increases.

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Assume that the coefficient of kinetic friction among all surfaces is 0. 400.

The newton is the unit of pressure inside the international machine of devices. it is described as 1 kg⋅m/s², the pressure which gives a mass of one kilogram and an acceleration of one meter according to 2nd in step with 2d.

The newton is the standard worldwide unit of pressure. In physics and engineering documentation, the time period newton is generally abbreviated N. One newton is the force required to cause a mass of one kilogram to boost up at a fee of 1 meter per 2nd squared within the absence of other force-producing consequences.

A newton is the international unit of measure for pressure. One newton is equal to a 1-kilogram meter consistent with 2d squared. In simple English, 1 newton of pressure is the force required to boost up an item with a mass of 1 kilogram 1 meter in keeping with 2nd in step with 2d.

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A. The hang time of the ball is 5.52 seconds

B. The horizontal displacement of the ball is 149.04 m

A. How do I determine the hang time?

We'll begin by obtaining the time require for the ball to reach the maximum height. This can be obtained as follow:

v = u - gt (Since the ball is going against gravity)

0 = 27 - (9.8 × t)

0 = 27 - 9.8t

-9.8t = 0 - 27

-9.8t = -27

Divide both sides by -9.8

t = -27 / -9.8

t = 2.76 s

Now, we shall determine the hang time. This is shown below:

T = 2t

T = 2 × 2.76

T = 5.52 s

Thus, the hang time is 5.52 seconds

B. How do I determine the horizonat displacement?

The horizontal displacement of the ball can be obtained as follow:

Horizontal displacement = initial velocity × hang time

Horizontal displacement = 27 × 5.52

Horizontal displacement = 149.04 m

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Complete the equations to show how the following compound can be synthesized from cyclopentanol is cyclopentane.

A ring of five carbon atoms, each connected with two hydrogen atoms above and below the plane, makes up the extremely combustible alicyclic hydrocarbon cyclopentane, with the chemical formula C5H10 and CAS number 287-92-3. It manifests as an odorless, colorless liquid. There is no specific usage for cyclopentane. Cyclopentane itself isn't used in any commercial goods. It is a byproduct of several fuels and blowing agents as a volatile hydrocarbon. Although it is somewhat combustible, it might theoretically be utilized as a refrigerant. The polyurethane foams used to insulate freezers and refrigerators are blown with cyclopentane. Cyclopentane doesn't have any hydro-fluorocarbons in it, unlike certain other substances that are used to insulate refrigerators (HFCs). Equivalent CO2 emissions are significantly reduced as a result of using cyclopentane.

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The velocity vector of 30 m/s is represented by forward arrow of 1.5 cm.

---------(1.5 cm)-----------> 30 m/s

A velocity vector represents the rate of change of the position of an object.

The magnitude of a velocity vector gives the speed of an object while the vector direction gives its direction.

Velocity vectors can be added or subtracted according to the principles of vector addition.

A velocity vector can be represented graphically, by using simple arrow illustration as shown below;

if 1 cm ---------> 20 m/s

? cm ------------> 30 m/s

= 30 m/s/ (20 m/s / cm)

= 1.5 cm

The velocity vector of 30 m/s = ---------(1.5 cm)-----------> 30 m/s

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Both the Earth and the Moon are attracted to one another by gravity, however the Earth is more attracted to the Moon because of the Earth's 9.80 m/s2 gravity acceleration.

A force that keeps the gases in the sun in place. a ball you throw in the air will come crashing down due to this force. the force that keeps an automobile from coasting downhill even when the gas is off.

Our term gravity and its more specific derivation gravitation are derived from the Latin word gravitas, from gravis (heavy), which in turn derives from an even older root word that is believed to have existed due to multiple cognates in related languages.

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The range of a projectile launched in this problem is 62.5 m.

Given that, θ = 45°

v₀ = 25 m/s

Consider, g = 10 m/s²

Projectile motion is a kind of motion in which the object is projected from the earth's surface and moves along a curved path following a constant acceleration under the action of gravity.

For example, the trajectory of water from a pipe, we observe that water does not immediately fall on the earth after it comes out of the pipe. It follows a parabolic route.

The maximum horizontal distance (d) travelled by the object is given by the formula,

d = v₀² sin(2θ)/g = 25²* sin 90°/10 = 62.5 m

Thus, the range is 62.5 m.

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The reaction, 82.1 kilojoules of energy are absorbed.

What is reaction?
A chemical reaction is indeed a procedure that causes one group of chemical substances to change chemically into another. Chemical reactions, which can frequently be described by the a chemical equation, traditionally include changes which only involve this same positions of electrons inside the formation and dissolution of chemical bonds between the atoms, with really no change to a nuclei (no change to a elements present). The study of chemical reactions involving unstable and radioactive elements, where both electronic as well as nuclear changes may take place, is known as nuclear chemistry.

2H2(g) + O2(g) → 2H2O(l)
Thermochemical Equation:
2H2(g) + O2(g) → 2H2O(l) ΔH = -82.1 kJ/mol

Explanation: The thermochemical equation above shows that the reaction between 2 moles of hydrogen gas and 1 mole of oxygen gas will produce 2 moles of liquid water and absorb 82.1 kilojoules of energy for each mole of reaction. This means that for each mole of the reaction, 82.1 kilojoules of energy are absorbed.

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The main distinction between enthalpy and entropy, which exists despite the fact that they are both components of a thermodynamic system, is that enthalpy is represented as the total amount of heat content while entropy is the level of disorder.

SO₂ (g) + 2H₂S (g) ⇄ 3S(s) + 2H₂O (g)

The standard ΔG and ΔH of the products less the standard ΔG and ΔH of the reactants may be used to calculate the ΔG and ΔH of the reaction. So, the reaction's ΔG is:

ΔGr = 3ΔG S(s) + 2ΔG H₂O (g) - ( ΔG SO₂ (g) + 2ΔG H₂S (g))

ΔGr = 3×0 kJ/mol + 2×-228,6 kJ/mol - (-300,4 kJ/mol + 2×-33,01 kJ/mol)

ΔGr = -90,78 kJ/mol

In the same way, ΔHr is:

ΔHr = ΔH S(s) + 2ΔH H₂O (g) - ( ΔH SO₂ (g) + 2ΔH H₂S (g))

ΔHr = 3×0 kJ/mol + 2×-241,8 kJ/mol - (-296,9 kJ/mol + 2×-20,17 kJ/mol)

ΔHr = -146,36 kJ/mol

A ΔH < 0  indicates that heat is being produced by the process. According to Le Chatelier's principle, which states that changes in a system's temperature, pressure, volume, or concentration will result in predictable and opposing changes in the system, raising the temperature will result in the production of less product, while lowering the temperature will result in the production of more product.

As 2 moles of gas produce 5 moles of gas if the pressure decreases the system will try to produce more gas opposing the change, and again if the pressure increases the system will try to produce less gas.

complete Question :

using relative enthalpy and entropy values, determine how the process is affected after each of the following temperature or pressure changes? consider that a more effective reaction produces more product or more product in a shorter amount of time.

Reaction: SO₂ (g) + 2H₂S (g) ↔ 3S(s) + 2H₂O (g)Substance | ΔG kJ/mol | ΔH kJ/molH₂O(g) | -228.6 | -241.8H₂O(l) | -237.1 | -285.8SO₂(g) | -300.4 | -296.9SO₃(g) | -370.4 | -395.2H₂S(g) | -33.01 | -20.17S(s) | 0 | 0Categorize into: "More Effective" ~ "Less Effective" ~ "Equally Effective"

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According to nebular theory, the order in which the solar system formed was

contraction of solar nebula -> condensation of solid particles -> accretion of planetesimals -> clearing the disk

The correct option is a.

As the nebula shrank, the initial rotation accelerated, much like a spinning skater pulling in his arms to spin faster. The rotating cloud shrunk and became flattened into a disc. The center of the disc held the majority of the material. Out in the disc, matter accumulated in smaller clumps. These evolved into the planets. By accretion of the matter that was falling in toward the center of mass, the proto-sun and proto-planets grew. As the contraction increased the pressure, the solar nebula warmed. The solar nebula was heated by the proto-heat, sun's especially the inner nebula. The birth of the sun. By this point, the planets had nearly all of their mass, but a heavy meteor bombardment persisted for another half a billion years or so.

The nebular hypothesis was proposed by a mathematician from France named Pierre Simon Laplace, around 200 years ago.

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I understand that the question you are looking for is:

According to nebular theory, in what order did the solar system form? group of answer choices

a. contraction of solar nebula -> condensation of solid particles -> accretion of planetesimals -> clearing the disk

b.accretion of planetesimals -> contraction of solar nebula -> condensation of solid particles -> clearing the disk

c.contraction of solar nebula -> accretion of planetesimals -> clearing the disk -> condensation of solid particles

d.accretion of planetesimals -> contraction of solar nebula -> clearing the disk -> condensation of solid particles

The frequency becomes  1301.259 Hz when the person is breathing a passage filled with hydrogen instead of air.

Speed of sound in air at temperature Tc

v=331(√(1+(Tc/237)))

At temperature Tc= 37 degree celcius

vc= 352.72 m/sec

The fundamental frequency of the tube

f= v/4L

f=352.72/ 4*.26= 339.15 Hz

for hydrogen gas, the speed of sound at temperature Tc

v=1270 √(1+Tc/273)

v= 1353.305 m/sec

Fundamental frequency f= v/ (4*L)

f= 1353.30/4*0.26

f= 1301.259 Hz

Frequency is an expression of the way regularly a periodic waveform or signal repeats itself at a given amplitude. It can be expressed in hertz (Hz), kilohertz (kHz), megahertz (MHz), and many others.

The frequency feature calculates how often values occur inside a number value, after which returns a vertical array of numbers. For example, use frequency to matter the quantity of taking a look at rankings that fall inside degrees of rankings.

The four one-of-a-kind styles of frequency distributions are ungrouped frequency distributions, grouped frequency distributions, cumulative frequency distributions, and relative frequency distributions.

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EMF induced in loop is - 0.011304 volt.

Given,

radius of the loop , r = 17 cm

= 17 cm (1[tex]0^-^2[/tex]m/ 1cm)

= 0.17 m

area of the loop ,  A  = π[tex]r^2[/tex]

= (3.14)(0.17[tex])^2[/tex]

= 0.045216 [tex]m^2[/tex]

resitance of loop ,   R= 7.5 Ω

(a)

Between t= 0 sec and t= 1sec,

B/dt = 0.5 T/2 s = 0.25T/s

Hence , emf is induced in the loop during the following

time intervals is ,

V = A dB/dt

= (0.045216 [tex]m^2[/tex] )(0.25 T/s)

= 0.011304 volt

(b)

since ,

Between t= 2 sec and t= 4sec,

dB/dt =  0 T / 2 s =  0 T/s

Hence , emf is induced in the loop during the following

time intervals is ,

V = A dB/dt

= (0.045216 [tex]m^2[/tex] )(0  T/s)

= 0  volt

(c)

Between t= 4 sec and t= 6 sec,

dB/dt = ( - 0.5 T/ 2 s ) =  - 0.25 T/s

Hence , emf is induced in the loop during the following

time intervals is ,

V = A dB/dt

= (0.045216 [tex]m^2[/tex] )(- 0.25 T/s)

=  - 0.011304 volt

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Radiogenic heat may be described due to the type of warmth that is released when radioactive isotopes disintegrate. Consequently, we say that, the thermal strength is launched by means of the nuclear disintegration of the radioactive isotopes.

Radio active heating refers to the power dissipated within the interiors of planets, asteroids, satellites, as a consequence of radioactive decay of radioactive isotopes. Radioactive isotopes are characterised by their decay energies and their half lives.

Around 50% of Earth's inner warmness originates from the radioactive decay. Four radioactive isotopes are chargeable for the general public of radiogenic warmness because of their enrichment relative to different radioactive isotopes uranium-238, uranium-235, thorium-232 and potassium-40.

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A raindrop of mass 3.29 × 10⁻⁵ kg falls vertically at constant speed under the influence of gravity and air resistance as it falls 140 m, the work done on the raindrop by the gravitational force is 45.1 mj .

In the question we have ,

Mass = 3.29 × 10⁻⁵ kg

Height = 140 m

Due to the effects of gravity and air , it falls vertically at a constant speed. We need to find the work that gravity gives the raindrops.

W = mgh

Here we know,

g = 9.8 m/s

Therefore,

W = 3.29 × 10 ⁻⁵ kg × 9.8 m/s × 140 m

W = 0.0451388 j

Hence, we get

W = 45.1 mj

Hence, the work done is 45.1 mj

Newton's law of universal gravitation states that all particles generally attract all other particles in the universe with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

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Midlife crisis involves anxiety, unhappiness, and a critical reappraisal of one's life, possibly provoking dramatic changes, is claimed to be common in middle adulthood.

Midlife crisis: A condition which includes anxiety, sadness, and a critical evaluation of one's life, is said to be prevalent in middle adulthood and may lead to drastic changes. As people adjust to midlife, this crises may have an impact on their sense of self and their level of confidence, which may modify their moods, behaviors, emotions, and interpersonal interactions. It is experienced from the age of 40 and lasts till the age of 60.

It is believed that feelings of depression, regret, and worry increase with age. And while many struggle to accept the truth that their lives are just half gone, a midlife crisis is a period that makes them feel young again.

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The following measuring tools can the student use to test the validity of the claim

a. Photogates placed at the beginning, end, and at various locations along the track that the car travels on.

b. A meterstick to measure the distance of the track that the car travels on.

The discipline or branch of science known as physics can be defined as the study of the nature and qualities of matter, motion, and energy with respect to space, force, and time.

In this case, a pupil receives a battery-operated toy car from the manufacturer that is guaranteed to constantly travel at a set pace. To verify the truth of the assertion, the student must devise an experiment.

The following measuring devices should be used by the student in order to verify the veracity of the assertion:

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The process human cells use to generate ATP is called cellular respiration.

In cellular respiration there is a phase of electron transport chain and it produces majority of ATP.

The two ATP-producing processes can be viewed as glycolysis (the anaerobic part) followed by aerobic respiration (the oxygen-requiring part).

Aerobic reaction can be defined as biological and chemical processes that occurs in the presence of oxygen.

Hence, an aerobic reaction requires oxygen before it can take place or occur and it produces adenosine triphosphate (ATP) as one of its end product.

In aerobic respiration, there are two main processes:

It is the electron chain transport, that produces maximum ATPs. This is a stage in cellular respiration.

In mitochondria, between the matrix and inner mitochondrial space, an electron gradient is produced by the function of ETS. This ETS gets electron from NADH and FADH₂. This proton motive force is utilized for ADP and ATP and this production is called oxidative phosphorylation. This is called phosphorylation and along with phosphorylation it also has oxidation. The proton gradient helps in the generation of large amount of ATP molecules through chemiosmosis.

ATP are produced by ATPase enzyme.

Therefore, the process through which majority of ATP is produced is through the process of Electron chain transport.

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The force on the pivot at point b is 1390 N. Considering that a force is a vector quantity, it has both a magnitude and a direction.

Choose a rotation axis.

Στ = 0 (rotational equilibrium)

Στ = +(1.2m)⋅(F1) – (4.6m)⋅(50kg⋅9.8m/s²) = 0

F1 = 1880 N

ΣF = 0 (translational equilibrium)

ΣFy = F1 – F2 – mg

= 1880 N – F2 – (50kg⋅9.8m/s²) = 0

F2 = 1390 N

The force on the pivot is 1390 N

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In a series circuit, the output current of the first resistor flows into the input of the second resistor, resulting in the same current in both resistors.

The current through each resistor is the same when resistors are linked in series. In other words, the current in a series circuit is the same at all locations.

The voltage across each resistor must be the same. The average of the individual resistances in the circuit is the equivalent resistance for the resistors in the circuit. The voltage across each resistor must be the same. Two resistors can be connected in series or parallel to a battery.

Two or more capacitors connected in series will have the same quantity of coulomb.

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The Earth's internal heat is generated from two main sources, namely radiogenic heat and primordial heat. Radiogenic heat is generated from the decay of radioactive elements inside the Earth's interior.

These elements such as uranium, thorium and potassium are found in the mantle and in the core of the Earth. When these elements decay, they release energy in the form of heat. Primordial heat is the heat generated by the Earth since its formation 4.5 billion years ago. This heat is a result of the energy released during the formation of the Earth from the condensation of dust and gas from the solar nebula. The heat from this process is still present in the Earth's interior and is responsible for the movements of the Earth's mantle.

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The simulation to evaluate the hundreds of the 3 coloured and unlabeled weights of various sizes are Gold large-sized weight 100g < M>.

This simulation shows the move phase of a cylindrical mass m sliding in a hole tube with springs and cease caps. The springs exert a Hooke's Law pressure Fs = -kx at the cylinder and the there's a low pace viscous drag (friction) pressure Fdrag=-bv this is decided with the aid of using the damping coefficient b enter field.

The solution is given as follows,

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The complete question is this Use the simulation to compare the masses of the three colored and unlabeled weights of different sizes. To do so, set the spring constant of both springs to the same value. Hang known weights on the left spring and an unknown weight on the right spring, and compare the two. Use as many known weights as necessary to determine the unknown masses, and then place each into the appropriate mass bins in the ranking task below. A. M<50 g

B. M = 50 g

C. 50 g D. M = 100 g

E. 100 g F. M = 250 g

G. M> 250 g

1. Blue medium sized weight

2. Magenta small sized weight

3. Gold large sized weigh

To outside observers at rest, the overall sizes of objects traveling at relativistic speeds are smaller

Relativistic speed is the rate at which relativistic effects matter for the desired level of measurement accuracy of the phenomenon being observed. Relativistic effects are the differences between values calculated by models that take relativity into account and those that do not.

The second premise of special relativity, which grants the speed of light in a vacuum, a special status, is that it travels at 186,000 miles per second (300 million metres per second). Galison said that according to Einstein's theory, light always moves at the same speed for every observer, regardless of that observer's speed.

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The piston in Fig. 3.16 is hit with a hammer and the gas initially at T and P is compressed by dV, after which it settles down the statement that is not true is The work done is less than -PdV .

The reversible extra than irreversible beacuse the important thing function why the irreversible is smaller than the reversible is the significance of the outside strain towards which the irreversible paintings is executed towards.

Particles flow from more positive to less positive chemical potential as Particles have a tendency to transport from better chemical capability to decrease chemical capability due to the fact this reduces the loose energy. In this way, chemical capability is a generalization of "potentials" in physics which include gravitational capability.

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The text can be interpreted in many different ways. The medium used gives the best interpretation of the play is script for stage or film. The medium that would give best interpretation is film.

Stage work involves acting in front of the audience. It is the live performances given by the actors.

Films are recorded acts that are displayed on the screens.

Cinema is a better medium when it comes to interpreting the play.

The audio version lacks the key elements such as sound effects and emotional expression. On the other hand, the film uses lighting and facial expressions to convey certain themes, emotions and also certain feelings.

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From highest to lowest, atoms are ranked according to their energy as follows: 1>4>3>2.

Let's give the energy diagrams a numerical designation.

Arrows from the outer circle to the center are in figure 1.Arrows from the outer circle to the inner circle, which is not the center is shown in figure 4.Arrow from second to the outer circle to the middle is figure 2 and arrow from inner circle to center is figure 3 respectively.

The energy that the electron loses when transitioning from a higher to a lower energy level must be exactly equal to the energy that is released in the photon. Longer arrows indicate larger changes in energy, hence the order of the photon energies must match the order in which the electrons' energy losses occurred.

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The complete question is

The circles in the diagrams below represent energy levels in an atom, and the arrows show electron (blue dot) transitions from one energy level to another. (The spacing between circles represents differences in energy: A larger spacing means a greater difference in energy.) Assuming that the transitions occur as photons are emitted, rank the atoms based on the photon energy, from highest to lowest.

414.96nm wavelength of visible wavelength of light are strongly reflected from the soap bubble. The soap bubble appear to be violet .

Wavelength that are visible are given by the formula (m+0.5 ) λ = 2 n d

n= refractive index of water= 1.33

d= thickness= 390nm

for m=1

(1+0.5)λ = 2(1.33)(390)

λ =691.7nm

for m=2

(2+0.5)λ = 2(1.33)(390)

λ =414.96nm

414.96nm wavelength of visible wavelength of light are strongly reflected from the soap bubble. The soap bubble appear to be violet .

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The repayment of federal tax arrears, child support obligations, garnishments imposed by creditors, bankruptcy decrees, garnishments imposed on student loans, and loan repayments made by government agencies are all examples of involuntary deductions.

Involuntary action is a term used to describe actions that occur without a person's knowledge or consent. There are many involuntary movements, such as digestion, heartbeat, sneezing, etc. The same regions of the brain govern both deliberate and involuntary behaviors.

A movement of the muscles that is usually either under conscious control or unconsciously. The term "voluntary muscles" refers to muscles that can be controlled at will. The term "involuntary muscles" refers to those that are not subject to volition (will control).

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