Three discrete spectral lines occur at angles of 10.4°, 13.9°, and 14.9°, respectively, in the first-order spectrum of a diffraction grating spectrometer. (a) If the grating has 3710 slits/cm, what are the wavelengths of the light?
λ1 = nm (10.4°)
λ2 = nm (13.9°)
λ3 = nm (14.9°)
(b) At what angles are these lines found in the second-order spectra?
θ = ° (λ1)
θ = ° (λ2)
θ = ° (λ3)

Answers

Answer 1

(a) The formula for finding the wavelength of light using a diffraction grating is:

nλ = d(sinθ)

where n is the order of the spectrum, λ is the wavelength of light, d is the distance between the slits of the grating, and θ is the angle at which the spectral line is observed.

For the first-order spectrum, n = 1. We can rearrange the formula to solve for λ:

λ = d(sinθ) / n

Substituting the given values:

For λ1: λ1 = (1/3710 cm)(sin10.4°) = 4.31 × 10^-5 cm = 431 nm

For λ2: λ2 = (1/3710 cm)(sin13.9°) = 5.74 × 10^-5 cm = 574 nm

For λ3: λ3 = (1/3710 cm)(sin14.9°) = 6.14 × 10^-5 cm = 614 nm

Therefore, the wavelengths of the light are:

λ1 = 431 nm

λ2 = 574 nm

λ3 = 614 nm

(b) For the second-order spectrum, n = 2. Using the same formula as above:

For λ1:

λ1 = (1/3710 cm)(sinθ) = (2λ)(d)

Rearranging the formula to solve for θ:

θ = sin^-1(2λ/d)

Substituting the known values:

For λ1: θ = sin^-1(2(431 nm)(3710 slits/cm)) = 21.2°

For λ2: θ = sin^-1(2(574 nm)(3710 slits/cm)) = 28.3°

For λ3: θ = sin^-1(2(614 nm)(3710 slits/cm)) = 30.3°

Therefore, the angles at which the spectral lines are observed in the second-order spectrum are:

θ = 21.2° for λ1

θ = 28.3° for λ2

θ = 30.3° for λ3

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Related Questions

What is the only part in our body we do not stretch?

Answers

Answer:

The quadriceps consists of four muscles: the skinny rectus femoris and the three huge “vasti” — vastus lateralis/intermedius/medialis. The vasti are only elongated by knee flexion, which is limited to about 120˚ when the calf hits the hamstrings. The vasti cannot be stretched strongly.

Answer:Masseter and temporalis

Why it’s unstretchable: The jaw can only open so far.

Why it’s a dang shame: Jaw tension is epidemic, and trigger points in these muscles cause a wide array of strange face and head pains, including toothaches, headaches, and earaches.

What is the energy of an electromagnetic wave that has a wavelength of
7.0 x 10-12 m? Use the equation E= hc where hc = 1.99 × 10-25 J-m.
OA. 2.8 × 10-14 J
OB. 1.4 x 10-36 J
OC. 9.0 x 10-37 J
OD. 7.2 x 1035 J
SUBMIT

Answers

Answer:

A: 2.8 * 10^(-14) J

Explanation:

Formula to find the energy is;

E = hc/λ

Where;

E is energy of a photon (E)

λ is wavelength of the light

c is speed of light

Thus;

E = (1.99 *10^(-25))/(7 * 10^(-12))

E = 2.8 * 10^(-14) J

An island reports that in the year 2000 there were 240 babies born. That same year, 100 individuals died.
What is the growth rate for this island?(Show your work and indicate if it is positive or negative.)

Answers

Answer:

+ 140

Explanation:

You can show the natural growth rate by subtracting the death rate from the birth rate during one year and converting this into a percentage.

Here it would be:

240 - 100 = + 140

// if you want to convert it to percentage, you need to know the size of the population

it would be

140 / (population size) * 100 %

You're holding an open house for Brenda. Walt and Mary walk in and ask you for a flyer that gives details about the property. At this point, what's your relationship with Walt and Mary

Answers

Walt and Mary are my Customers at this point.

To construct proper client relationships you need to: greet clients and approach them in a way that is herbal and suits the character scenario. show customers that you recognize what their desires are. be given that a few humans may not want your merchandise and concentrate on constructing relationships with people who do.

Use the time period clients, with an apostrophe before the “s” to expose a possessive form for a single consumer. Use the time period clients', with an apostrophe after the “s” to show the possessive plural shape of a couple of patrons. Do now not use an apostrophe if there's no possessive indication needed.

The definition of a consumer is a person who buys services or products from a store, restaurant, or different retail vendor. An example of a patron is someone who is going to an electronics save and buys a tv. (Casual) a person, mainly one engaging in a few types of interaction with others.

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An object moving in the air at a constant speed is considered to be in a balanced state. Explain Why

Answers

Answer:

and there is no friction

Explanation:

An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force. An object in motion with a velocity of 2 m/s, East will (in the absence of an unbalanced force) remain in motion with a velocity of 2 m/s, East. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force. Objects resist changes in their velocity.

pls help i’ll give brainliest if you give a correct answer!!

Answers

Answer:

C. The distance traveled by an object at a certain velocity.

Explanation:

YW!

Answer:

third option is the most accurate


A ray diagram shows an object placed between 2F and F of a convex lens.

The image produced is
smaller than the object.

upright.

larger than the object.

virtual

Answers

Answer:

larger than object

Explanation:

the image formed will be on the opposite side of lens and magnified

Answer:

C

Explanation:

A 1436. 32' line has an azimuth of 178 52 13. What is the latitiude and departure of the line?

Answers

Latitude of the line will be = 1436.033

Departure of the line will be   = 28.152

Given

let line be = a = 1436. 32

azimuthal be = x = 178° 52' 13''

This line must have two components , one is horizontal component which is its latitude and other will be vertical component which is departure . Resolving both the components we get,

latitude = a*cos(178° 52' 13'')

             = 1436. 32 * cos(178° 52' 13'')

             = 1436. 32 * (- 0.9998)                              

latitude = 1436.033

departure  =  a * sin (178° 52' 13'')

                  = 1436. 32  *  0.0197

  departure  = 28.152

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Theoretically, what would be the mass of an object accelerated
to 100% the speed of light?

Answers

I know most of the answers will say infinity, but still this needs deeper look about its physical meaning and does it consider a practical logic?

Infinity usually used for something we could not measure, however the reality may be different!

The denominator of the equation would become 0 and the mass would become infinite if the mass's velocity ever surpassed the speed of light.

Speed of light and mass:

The amount of energy needed to accelerate an infinite mass would be infinite as well. The fact that light travels at the speed of c indicates that it has no rest mass.

When a mass particle approaches the speed of light, its energy grows and becomes infinite at that speed, which is why it can never be accelerated to that speed.

Experiments have confirmed this, and it has been demonstrated that nothing goes faster than the speed of light.

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A concrete dam holds back a large reservoir of water
potential or kinetic energy

Answers

Answer:

The water in a reservoir behind a hydropower dam is another example of potential energy. The stored energy in the reservoir is converted into kinetic energy as the water flows down a large pipe called a penstock and spins a turbine.

Explanation:

Hope this helps :))

A concrete dam holds back a large reservoir of water potential energy, the stored potential energy is converted into the kinetic energy which is converted into mechanical energy and then further converted into electrical energy.

What is hydropower?

A dam or other construction that alters the natural flow of a river or other body of water is used to generate hydropower, often known as hydroelectric power.

In order to generate energy, hydropower uses the perpetual, never-ending water cycle, which uses water as a fuel and leaves no waste products behind. Although there are many different kinds of hydropower plants, they are always propelled by the kinetic energy of water moving downstream.

Thus, a concrete dam holds back a large reservoir of water potential energy.

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Interstellar dust is effective at blocking visible light because Choose one: A. the dust is so dense. B. dust grains are so small. C. dust grains are so large. D. dust grains are so few.

Answers

Answer: Interstellar dust is effective at blocking visible light because dust grains are so small.

Explanation: To find the answer, we need to know more about the interstellar dust.

What is interstellar dust?Interstellar dust developed from dying stars as they burn out.This dust can block the visible light as well as UV emerging from the stars, because dust grains can block light at optical wavelengths.it absorbs and scatters blue light more than red. thus, red light can pass through it.If we place a star behind the dust, it will look more redder than its usual color. This is called interstellar reddening.Grains have a typical size of [tex]10^-6 m[/tex].

Thus, we can conclude that, Interstellar dust is effective at blocking visible light because dust grains are so small.

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In a bar magnet the magnetic force seems to come from each end. The ends of a bar magnet are
called the___
What one word completes the sentence?

Answers

Answer: poles

North Pole and South Pole? I hope this help

Determine the amount of work you would need to do in order to stop a 1100kg car with 1400J of kinetic energy.

Answers

Answer:

 W = -1400 J

Explanation:

Let's use the relationship between work and kinetic energy

           W = ΔK

             

kinetic energy is

            K = ½ m v²

therefore in this case

             K₀ = 1400 J

         

Thus

            W = 0 -1400

            W = -1400 J

The negative sign indicates that the work is done against the energy, that is, in the opposite direction to the movement

6th grade science pls help

Answers

Answer:

D

Explanation:

I hope you get a good grade!

1. How much electrical energy is needed to bring two charges Q1= 5.5 x 10-7C and Q2= 1.7 x 10-6 C from infinity to where they are 1 meter apart.

Answers

Answer:

The electrical energy needed is 8.415*10⁻³ N

Explanation:

Energy is the ability of a body to make changes or work.

By separating or joining two electric charges a distance (for example, a radius r) within their electric fields, you are taking away or giving the electric charges energetic potentials, relative to each other. By releasing these charges, they will attract or repel each other, releasing that acquired electrical energy.

In other words, electric potential energy is linked to the particular configuration of a conglomerate of point charges in a defined system.

That is, it calculates the capacity of an electrical system to carry out a task based exclusively on its position or configuration. So, it is a kind of energy stored in the system, or the amount of energy that it is capable of delivering.

Thus, a charge will exert a force on any other charge and the potential energy is the result of the set of charges.

The electric potential energy that has a point charge q in the presence of another point charge Q that are separated by a certain distance r is:

[tex]Ep=K*\frac{Q1*Q2}{r^{2} }[/tex]

where:

Ep is the electric potential energy. It is measured in Newton (N). Q1 and Q2 are the values ​​of the two point charges. They are measured in Coulombs (C). r is the value of the distance that separates them. It is measured in meters (m). K is the constant of Coulomb's law. For vacuum its value is approximately 9*10⁹ N*m²/C²

In this case:

Q1=5.5*10⁻⁷ CQ2=1.7*10⁻⁶ Cr=1 m

Replacing:

[tex]Ep=9*10^{9}\frac{N*m^{2} }{C^{2} } *\frac{5.5*10^{-7}C *1.7*10^{-6}C }{(1m)^{2} }[/tex]

Solving:

Ep= 8.415*10⁻³ N

The electrical energy needed is 8.415*10⁻³ N

The electrical energy is needed to bring two charges Q1 and Q2 from infinity to where they are 1 meter apart is 8.415 x 10⁻³ N.

What is the electric potential?

An electric potential can be defined as the amount of work or energy needed to move a charge from one point to another against the electrical field.

We know that in order to know electrical energy is needed to bring two charges Q1= 5.5 x 10⁻⁷C and Q2= 1.7 x 10⁻⁶ C from infinity to where they are 1 meter apart, we need to calculate electric potential energy between the two charged particles,

[tex]E_P = k\dfrac{Q_1Q_2}{d^2}[/tex]

Substitute the values,

[tex]E_P = 9 \times 10^9 \dfrac{5.5 \times 10^{-7} \times 1.7 \times 10^{-6}}{1^2}\\\\E_P = 8.415 \times 10^{-3}\rm\ N[/tex]

Hence, the electrical energy is needed to bring two charges Q1 and Q2 from infinity to where they are 1 meter apart is 8.415 x 10⁻³ N.

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The center of gravity of the body is at________ position in state of unstable equilibrium. ​

Answers

Answer:

Highest.

Explanation:

This is because, in a state of unstable equilibrium, the center of gravity is at highest which as a result of when the body topples at it's base, there is a shift in the centre of gravity, and the centre of gravity shift position by moving towards the lower position and it does not return to it's former position again.

Mr. Rosa is able to travel at 10m/s. How much time will it take him to travel a distance of 542 meters?
What is the known?
What is the unknown?
Plug it in.
What is your answer?

Answers

// s - displacement, t - time, v - velocity

Known:

s = 542 meters;

v = 10m/s

Unknown:

t - ?

Formula:

t = s / v

Solution:

t = 542 / 10 = 54,2 (s)

Answer:

54,2 s

Make me the brainliest, please

An outfielder throws a baseball to home plate with a velocity of 27 m/s at 35o. It is caught by the first baseman. How long was it in the air

Answers

Answer:

Explanation:

Initial velocity of the ball = 27 m /s .

Its vertical component = 27 sin 35 = 15.48 m /s

Considering vertical displacement to the top point ,

initial velocity u = 15.48 m /s

acceleration due to gravity g = 9.8 ,

velocity at the top v = 0

v = u - gt  

0 = 15.48 - 9.8 t

t = 15.48 / 9.8 = 1.579 s

So time of ascent = 1.579 s

Similarly , time of descent = 1.579

Total time of flight = 2 x 1.579

= 3.16 s

Light described as what two things?

Answers

Answer:modeled as an electromagnetic wave. In this model, a changing electric field creates a changing magnetic field.

Explanation:

What are true statements that reflect why infants experience more fluid and electrolyte changes?

Answers

True statements that reflect why infants experience more fluid and electrolyte changes are that dehydration can upset the  balance of electrolytes in an infant or child and the newborn is at risk of excessive water loss and hypernatremia as the result of high evaporative water loss through the skin.

As infants are not used to the environment around , they are more sensible towards problems such as Dehydration because of fast metabolism.

Dehydration can upset the  balance of electrolytes in an infant or child. Children are especially vulnerable to dehydration due to their small size and fast metabolism, which causes them to replace water and electrolytes at a faster rate than adults.

Infants are particularly prone to the effects of dehydration because of their greater baseline fluid requirements (due to a higher metabolic rate), higher evaporative losses (due to a higher ratio of surface area to volume), and inability to communicate thirst or seek fluid.

The newborn is at risk of excessive water loss and hypernatremia as the result of high evaporative water loss through the skin, insensible water loss (IWL), as well as decreased capacity to concentrate the urine.

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A 1-kg book is at rest on a desk. Determine the force the desk exerts on the book

Answers

Answer:

[tex]\displaystyle F_n = 9.8 \ N[/tex]

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Physics

Forces

SI Unit: Newtons N

Free Body Diagrams

Gravitational Force: [tex]\displaystyle F_g = mg[/tex]

m is mass (in kg)g is Earth's gravity (9.8 m/s²)

Normal Force: [tex]\displaystyle F_n[/tex]

Newton's Law of Motions

Newton's 1st Law of Motion: An object at rest remains at rest and an object in motion stays in motionNewton's 2nd Law of Motion: F = ma (Force is equal to [constant] mass times acceleration)Newton's 3rd Law of Motion: For every action, there is an equal and opposite reactionExplanation:

Step 1: Define

1 kg book at rest

Step 2: FBD

See Attachment

Draw a free body diagram to label the forces acting upon the book. We see that we would have gravitational force from Earth pointing downwards and normal force from the surface of the desk pointing upwards.

Since the book is not moving, we know that ∑F = 0 (sum of forces equal to 0).

Step 4: Find Normal Force

Define Forces [Newton's Law of Motions]:                                                 [tex]\displaystyle \sum F = 0[/tex][Newton's Law of Motions] Substitute in forces:                                         [tex]\displaystyle F_g - F_n = 0[/tex][Newton's Law of Motions] [Addition Property of Equality] Isolate [tex]\displaystyle F_n[/tex]:     [tex]\displaystyle F_g = F_n[/tex][Newton's Law of Motions] Substitute in [tex]\displaystyle F_g[/tex]:                                               [tex]\displaystyle mg = F_n[/tex][Newton's Law of Motions] Rewrite:                                                             [tex]\displaystyle F_n = mg[/tex][Newton's Law of Motions] Substitute in variables:                                   [tex]\displaystyle F_n = (1 \ kg)(9.8 \ \frac{m}{s^2})[/tex][Newton's Law of Motions] Multiply:                                                             [tex]\displaystyle F_n = 9.8 \ N[/tex]

A horse has a momentum of 25 kg*m/s and a velocity of 2.5 m/s. What is the horse mass?

Answers

Answer:  10 kg

==================================================

Work Shown:

We have these variables

p = momentum = 25 kg*m/sm = mass = unknownv = velocity = 2.5 meters per second

Solving for the mass gets us...

p = m*v

25 = m*2.5

25/2.5 = m

10 = m

m = 10

The mass of the horse is 10 kg.

Why does the chord of an electric heater not glow while the heating element does​

Answers

Answer:

The heating element of the heater is made up of alloy which has very high resistance so when current flows through the heating element, it becomes too hot and glows red. But the resistance of cord which is usually of copper or aluminum is very low so it does not glow.

Is it resistant to mud fire ​

Answers

Dirt that you can not burn typically does no longer have any materials that are flammable at decrease temperatures. Mostly due to the fact it is full of water and non-burnable minerals. But a lot of what's in grime can certainly burn if it is dried. Dirt is made of many unique things.

yes

Explanation:

since they are extremely dense they lack the ability to trap air due to its structure

A 65.0 kg skier slides down a
37.2° slope with uk = 0.107.
If the slope is 42.0 m long, and
the skier starts from rest, how
fast is she going at the bottom?
(Unit = m/s)

Answers

She is going at a velocity of 20.63m/s to the bottom.

Friction is a resistive force between a body and the surface it is moving over in mechanics. It is computed mathematically using the friction coefficient and normal force product.

The mass is:  m = 65kg

The coefficient of friction is:  μk = 0.107

The angle is:  θ = 37.2°

W = mg

W₁ = W sin θ = mg sin θ

W = W cos θ = mg cos θ

[tex]F_{N} = W = mgcos[/tex]θ

[tex]F_{f} =[/tex] µ[tex]F_{N}[/tex] = µmg cosθ

[tex]F_{net} = W_{1} - F_{f}[/tex]

       [tex]= mg sin[/tex]θ - µmg cosθ

[tex]F_{net} = ma[/tex]

[tex]ma =[/tex] mg sinθ - µmg cosθ

a = g sinθ - µmg cosθ

  = 9.8 sin (37.2) - (0.107) 9.8 cos(37.2)

  = 9.8 × 0.605 - 0.107 × 9.8 × 0.796

  = 5.929 - 0.834

  = 5.095 [tex]m^2/s[/tex]

∴ Δd = [tex]\frac{1}{2} a ([/tex][tex]t^2[/tex][tex])[/tex]

  [tex]t^2[/tex] = 2Δd / a

  [tex]t^2=[/tex] 2 × 42.0 / 5.095

  [tex]t^2 =[/tex] 16.48

  [tex]t=4.05[/tex]

∴ [tex]v_{2} = v_{1} + at[/tex]

      [tex]= 0+ 5.095 (4.05)[/tex]

      [tex]= 20.63 m/s[/tex]

Therefore, she is going at a velocity of  20.63m/s to the bottom.

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The following figures show four positions (1-4) of a comet during its orbit of the Sun. Also shown is the orbit of the Earth around the Sun. Rank the positions of the comet from left to right based on the size of its tail, from shortest to longest. (Not to scale; tails not shown.)

Answers

3, 1, 2, 4 is the arrangement according to their comet's tail.

The length of a comet's tail depends primarily on the comet's distance from the sun. It is longer when the comet is closer to the sun and shorter or (Negligible) when the comet is farther from the sun.

Due to sunlight's radiation pressure, the comet's tail will always point away from the sun. Small dust particles are pushed away from the sun by sunlight with a stronger force than by gravity pulling them in the opposite direction. As a result, a comet's tail streams behind the nucleus during its inbound transit, but it streams in front of the nucleus during its outbound passage back to the outer solar system. Typically, gas jets produced by thawing frozen volatiles expel dust particles from a comet's surface.

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the unit of acceleration is derived unit why​

Answers

Answer:

Mass is a base unit, acceleration is a derived unit calculated as a function of length and time which are both base units. Any unit definition that is a function of more basic units is considered a derived unit.

how was youll day still in school by the way.

Answers

My day is alright! I just finished school for the day.. and I’m excited for the weekend! How was your day?

15. Which of the following is the correct electron configuration for neon (10Ne)?
A. 1s 2s22p
C. 184 2s2 3s2 2p?
B. 1s 2s2 3s2 2p4
D. 152 282 3s2p5​

Answers

Answer:

1s2,2s2,2p6 or (He) 2s2 2p6

balance the equation
P + 02 → P205 ​

Answers

Answer:

4P + 502 → 2P205

Explanation:

Hence the above equation is balanced.

Explanation:

[tex] \underline{ \underline{ \large{ \text{Given \: chemical \: equation}}}} : [/tex]

[tex] \tt{P \: + O _{2} \: \: \: \: ➞ \: \: P_{2} \: O_{5}}[/tex]

Here , Multiply P2O5 by 2 and O2 by 5 to equalize oxygen :

[tex] \tt{P+ 5O_{2} \: \: ➞\: \: 2P_{2} \:O_{5}}[/tex]

Now , To equalize P atoms , Multiply P by 4

[tex] \boxed{ \large{\tt{ 4P + 5O _{2} \: ➞ \: \: \: \: 2P_{2} \: O_{5}}}}[/tex]

Here , On the left side we have 4P and On the right side ,we have 4P. Again , On the left side , we have 10 O and On the right side , we have 10 O. And yippie , we got the balanced chemical equation !!!

Hope I helped ! ♡

Have a wonderful day / night ! ツ

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Answer these questions in two or three sentences: was the marshall plan successful? how did it help participants? WILL MARK BRAINLIEST!! In those days the Church was not merely a thermometer that recorded the ideas and principles of popular opinion; it was a thermostat that transformed the mores of society.Type of figurative language:Meaning of figurative language:Effect on tone and mood:Effect on audience: A pharmaceutical scientist studying two medications wonders how long different amounts of each medicine stay in someone's bloodstream. The amount of time (in hours) one medication stays in the bloodstream can be modeled by f(x)=-1.25\cdot \ln{\left(\dfrac{1}{x}\right)}f(x)=1.25ln( x 1 )f, left parenthesis, x, right parenthesis, equals, minus, 1, point, 25, dot, natural log, left parenthesis, start fraction, 1, divided by, x, end fraction, right parenthesis, where xxx is the initial amount of the medicine (in milligrams). The corresponding function for the other medication is g(x)=-1.8\cdot\ln\left(\dfrac{2.1}{x}\right)g(x)=1.8ln( x 2.1 )g, left parenthesis, x, right parenthesis, equals, minus, 1, point, 8, dot, natural log, left parenthesis, start fraction, 2, point, 1, divided by, x, end fraction, right parenthesis. Here are the graphs of The primary goal of a data _____ is to create new questions using data. PLS HELPPP WILL MARK BRAINLIEST IM DESPARETEThe patella is a(n) _____________bone found in the ___________________. (2 points)long; appendicular skeletonirregular; appendicular skeletonflat; axial skeletonshort; axial skeleton Literally, mahayana means :________ A. Mind only. B. Big vehicle. C. Great insight. D. Compassionate heart What are the major arguments put forward by proslavery advocates? How would you argue against their statements? Photodecomposition, photomutagenicity and photocytotoxicity of retinyl palmitate under He-Ne laser photoirradiation and its effects on photodynamic therapy of cancer cells in vitro Christi, Joey, and Lisa have 2 1/3, 3 1/2, and 6 5/6 dozen cookies, respectively. How many dozens do they have combined? __________________ are people who have broken the rules but whose violation goes unnoticed. Solve for x if AB = 5x and BC = 3x + 24. The nurse is caring for a client who has a fluid volume deficit. When evaluating this client's urinalysis results, what should the nurse anticipate A 5 year old is diagnosed with tinea corporis following development of lesions on the nonhairy parts of the face, trunk, and limbs. What is a common source of this condition A free rider is Group of answer choices Someone who only purchases resold goods or only uses items they can get for free. Someone who consumes a public good but does not pay for it. Someone who resells items they have purchased. Someone who gives away items they have purchased. Match each word to it's correct meaning.1. chlorophyll2. chloroplast3. palisade layer4. photosynthesissmall oval bodies containingchlorophylllayer of cells near the top surface ofthe leaf that contains the chloroplastsgreen chemical that performsphotosynthesisfood-making process in greenplants What style of argument does henry most closely follow? how can you tell? From the description of Liz as she puts on her skates (lines 11-15), the reader can infer that the narrator sees Liz as being both Which strategies could be used to reverse the current trend occurring in the United States? Check all that apply. cual es el valor de 10=z-6 The theory of rational expectations indicates that households and businesses expectations change ________ and therefore ________ the effectiveness of monetary or fiscal policy.