deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars every day. although the actual process also requires water, a simplified equation (with rust shown as fe2o3) is:
Rusting is a very expensive process to humans and is represented by the simplified equation of: 4Fe + 3O₂ → 2Fe₂O₃ .
At the basic level, rust occurs when iron comes into contact with air (oxygen) and they both react to form Iron Oxide which is the chemical name for rust.
The equation is:
Iron + Oxygen → Iron Oxide
4Fe + 3O₂ → 2Fe₂O₃
In conclusion, the simplified equation for rust is 4Fe + 3O₂ → 2Fe₂O₃.
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Which of the following is the best version of the underlined portion of sentence 14 (reproduced below)? The First and Second World Wars dampen enthusiasm for saengerfests in the United States, as anti-German sentiment rose in the midst of these conflicts.
Answer:
The First and Second World Wars dampened enthusiasm for saengerfests in the United States, as anti-German sentiment rose in the midst of these conflicts.
The enthusiasm for saengerfests in the United States waned during the First and Second World Wars.
What led to this?This decline was primarily attributed to the growth of anti-German sentiment amidst these global conflicts.
As patriotic fervor intensified and tensions escalated, public interest in German cultural events like saengerfests dwindled. The negative perception of German heritage during the wars led to a decrease in participation and support for these traditional celebrations.
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Using the Fe [26] game to model nuclear fusion in a star
You will now model nuclear fusion in a low and a high mass star with the Fe [26] game.
Think about the method you want to use to represent gravity in low mass stars. Note: Nuclear fusion is a random process, which means that you need to move your fingers “randomly” too. Hint: don’t look at the screen while you play!
Play the game! Write down your observations in the first column below.
Repeat, this time to simulate gravity pushing light elements together in a high mass star. Write down your observations in the second column below.
Observations for low mass star:
I will represent gravity in the low mass star by slowly moving my hand towards the Fe [26] nucleus, gradually increasing the force of attraction.
During the game, it was difficult to get the lighter nuclei to stick together and form heavier nuclei. It required a lot of patience and precise movements.
Eventually, I was able to create some heavier nuclei, but it was a slow and inefficient process.
How r explain the informationIt seemed that the fusion reactions were occurring at a slower rate due to the weaker gravitational pull in the low mass star.
Observations for high mass star:
To simulate gravity pushing light elements together in a high mass star, I will move my fingers more rapidly towards the Fe [26] nucleus, increasing the force of attraction quickly.
Fusion reactions were occurring much more rapidly in the high mass star than in the low mass star.
It was easier to get lighter nuclei to stick together and form heavier nuclei in the high mass star, as the stronger gravitational pull allowed for more efficient fusion.
The game was more challenging, as the rapid movement required to simulate the strong gravity made it difficult to control and aim the nuclei accurately.
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Choose at least four (4) items from each of the three (3) lists below. Weave these four items into three related or scenes to create a story.
NOTE: Your submission must contain at least three scenes and follow the general rules for 'scene.' Each scene must have a beginning, middle, and end. Each scene should do one or more of the following:
a. Provide exposition
b. Describe character
c. Advance the plot
Choose at least four items from each list and write your scenes.
1.
a poisoned drink
a howling collie
a deserted farmhouse
a purse with $100
a forest fire
a yellow Cadillac
a set of drums
a motorcycle
an airline ticket
a screaming burglar alarm
a broken window
tracks in the snow
a blind guitarist
2.
a tube of lipstick
a diamond necklace
a ringing phone
a face at the window
a rattlesnake
a barber
a newspaper ad
a single glove
a white cat
a piercing scream
a swarm of bees
a glass of champagne
a blonde wig
a dead tree
a mannequin
3.
a pouch of tobacco
a palomino stallion
a walking cane
a garden path
a silver teapot
a moving shadow
a ferris wheel
a picnic basket
a bird
a lace curtain
a raspy laugh
a glowing fireplace
Answer:
answer in below
Explanation:
Complete the sentences to describe any points of discontinuity in the function f (x) = startlayout enlarged left-brace first row startfraction x cubed + 27 over x squared minus 9 endfraction , x less-than 9 second row 2 x, x greater-than-or-equal-to 9 endlayout the function has a removable point of discontinuity when x = . the function has infinite discontinuity when x = . the function has jump discontinuity when x = .
Answer:-3, 3, 9
Explanation:
Makayla is reading a 400 page book.
Answer:
ok good Makayla
Explanation:
Branliest please
Can someone help me get kylerdagaminggod to reply to me thanks :)
Answer:
whos that Imao
2r + 6 2
(x + 2)2 + 2
The expression above is equivalent to
(x + 2)?
where a is a positive constant and xx
What is the value of a ?
Answer:
a = 2
Explanation:
Multiply through by \((x+2)^{2}\)
⇒ (2x + 6) - 2(x + 2) = a
2x + 6 - 2x - 4 = a
6 - 4 = a
2 = a
Hope this helps :)
The quotient of 6x^3+2x^2−x and x is 6x^3+2x^2−x divided by x
The value of the quotient 6x^3+2x^2−x by x is 6x^2 + 2x - 1
How to determine the quotient?The quotient expression is given as:
6x^3+2x^2−x divide by x
The above means that,
We divide 6x^2 by x, we divide 2x^2 by x and we divide -x by x.
So, we have:
6x^3+2x^2−x divide by x = 6x^2 + 2x - 1
Hence, the value of the quotient 6x^3+2x^2−x is 6x^2 + 2x - 1
An expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them. In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Hence, The solution is, 2x+ 2+x, is the expression which is not equivalent to 3x– 2.
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Which of the following describes an investigation to determine a chemical property?
A Measuring the density of a sample of balsa wood
B Determining the melting point of lead
C Measuring the boiling point of sugar water
D Determining the reactivity of baking soda and vinegar
The statement that best describes an investigation to determine a chemical property is as follows:
Determining the reactivity of baking soda and vinegar.Thus, the correct option for this question is D.
What is a chemical property?Chemical property may be defined as an attribute of a specific substance that can significantly be observed in a chemical reaction. It also describes an ability of a substance to undergo a chemical change. Some of the examples of chemical properties are as follows:
Flammability.Toxicity.Reactivity. Combustion.Rate of radioactive decay, etc.According to the question, the process of measuring the density of a sample of balsa wood, determining the melting point of lead, and measuring the boiling point of sugar water are examples of physical properties.
Therefore, the process of determining the reactivity of baking soda and vinegar is an investigation that describes a chemical property. Thus, the correct option for this question is D.
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Which of the following is equal to √3 √2?
The options that are equal to the root √3/2 are options A and C.
How is this so?Given √3/2 is the value.
To Find - The angles for which √3/2 is the value.
Solution -
Sin60° = √3/2
Tan60° = √3
Cos30° = √3/2
Cos90° = 0
Hence, is the value of Sin60° and Cos30°. Options A and C.
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Full Question:
Although part of your question is missing, you might be referring to this full question:
Which of the following is equal to √3/2
(Select one or more answers)
Ans:
sin 60°
tan 60°
cos 30°
cos 90°
x 2 + 2 13 x+ 2 15 =0x, squared, plus, start fraction, 13, divided by, 2, end fraction, x, plus, start fraction, 15, divided by, 2, end fraction, equals, 0 If x=ax=ax, equals, a and x=bx=bx, equals, b are the solutions to the equation above, what is the value of ababa, b?
The values of a and b from the quadratic equation x² + (13/2)*x + 15/2 = 0 are:a = -10/13 and b = -3/13 respectively.
How to solve the quadratic equation?For a general quadratic equation:a*x² + b*x + c = 0
The solutions are:
\(x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}\)
In this case, we have the quadratic equation:
x² + (13/2)*x + 15/2 = 0.
Replacing that in the quadratic formula for the solutions, we will get:
\(x = \frac{-13/2 \pm \sqrt{(13/2)^2 - 4*1*15/2} }{2*13/2}\\\\
x = \frac{-6.5 \pm 3.5 }{13}\)
Then the two solutions are:
x = (-6.5 - 3.5)/13
= -10/13
x = (-6.5 + 3.5)/13
= -3/13
Therefore, the solution to the quadratic equation is = -10/13 and b = -3/13
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Which of the following is not a theme of romanticism.
Explanation:
you need a picture/ or type it out to know what it's saying
How does the different forms of ownership contribute to sustainable job creation
Answer:Job creation and economic growth are related. Job creation is necessary because, the more people work the more the economy become stable. Economic stability is needed before people can start making big investments in themselves and their children.
Explanation:
You start at start at (4, 1). You move down 3 units. (-1, 4). You move left 4 units and down 3 units. Where do you end?
An account that earns a higher rate of interest when you make large deposits is _____.
a basic savings account
a savings account at a credit union
a money market
an IDA
Consider the following figure ABDC with diagonal BC. Sides AB and DC are congruent angle A is congruent to angle D and sides AC and DB are congruent
Quadrilateral ABCD is both a parallelogram and a rhombus.
The figure ABDC with diagonal BC, with the congruent sides AB and DC, angle A is congruent to angle D, and sides AC and DB are congruent is a parallelogram. This is based on the definition of a parallelogram which is a quadrilateral with opposite sides that are parallel and congruent to each other.
Also, opposite angles of a parallelogram are congruent. Therefore, angle A and angle C are congruent. Additionally, angle B and angle D are also congruent because they are opposite angles of a parallelogram.The diagonal of a parallelogram cuts it into two congruent triangles.
Triangle ABD and triangle CBD are congruent triangles, since their sides are congruent, and angles A and D, and angles B and C, are congruent by the given information.
Therefore, their included angles ABD and CBD are also congruent. Because their opposite sides are congruent, quadrilateral ABCD is a rhombus. A rhombus is a parallelogram with all sides congruent. This implies that sides AB, BC, CD, and DA are all equal.
In conclusion, quadrilateral ABCD is both a parallelogram and a rhombus.
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How old was the inaugural poet?
Answer:
22
Explanation:
she was
South Africa won the bid for the 2023 world event. Explain its effects on the following aspect: Positive economic impact of world events on international tourism.
If 2(−3x+c)=−3(2c2+cx)c+5c, what is the value of x in terms of c?
Answer:x-264.62
Explanation:you can set up a proportion
16.0/130 = x/2150
by cross multiplying you get
130x = 34400
divide by 130 and get
x-264.62
The value of the variable x in terms of c will be x = (7c − 6c³) / (3c² − 6).
What is the solution to the equation?The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.
The equation is given below.
2(−3x + c) = −3(2c² + cx)c + 5c
Simplify the equation for x, then the equation will be
2(−3x + c) = −3(2c² + cx)c + 5c
−6x + 2c = −6c³ − 3c²x + 5c
3c²x − 6x = 2c + 5c − 6c³
(3c² − 6)x = 7c − 6c³
x = (7c − 6c³) / (3c² − 6)
The value of the variable x in terms of c will be x = (7c − 6c³) / (3c² − 6).
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. You receive 23 out of 25 points on an exam. What is your score as a percent?
Answer:
92 percent
Explanation:
23÷25=0.92
0.92×100 = 92 percent
Answer:
should be like 94-98
Explanation:
mendel believed that the characteristics of plants are determined by the
Answer:
inheritance of units or factors from both parents
Explanation:
We now call these units genes. Each inherited trait is determined by at least one gene from each parent.
It Is Science I Could Not See Science So I Chose Sat Help
Answer:
See Explanation
Explanation:
Nucleus = the central part of the atom containing protons and neutrons
Electron Cloud = The area of the atom surrounding the nucleus where electrons can be found
Electron = A negatively charged particle that orbits the nucleus of an atom
Proton = A positively charged particle located in the nucleus of an atom
Neutron = A neutral particle located in the nucleus of an atom
Calculate the magnitude of the total resultant force f⃗ r=f⃗ 1+f⃗ 2+f⃗ 3 acting on the mass
Resultant will be (0.54î - 1.75j) N, Magnitude is 1.83 N, and the Direction is - 72.9°, as per the given equation.
What is resultant force?A resultant force is the single force and corresponding torque that are produced when adding vectors to a system of forces and torques acting on a rigid body.
From the free body diagram, the resultant is a vector sum of all the three individual forces.
F₁ = 4(cos 25°î + sin 25°j) = (3.625î + 1.691j) N
F₂ = 6(cos 325î + sin 325j) = (4.915î - 3.441j) N
F₃ = (- 8î) N
Resultant force is
F₁ + F₂ + F₃ = (3.625î + 1.691j) + (4.915î - 3.441j) + (- 8î) = (0.54î - 1.75j) N
Magnitude = √[(0.54²) + (-1.75²)] = 1.83 N
Direction = tan⁻¹ (-1.75/0.54) = - 72.9°
Thus, this is the the magnitude of the total resultant force.
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during a college visit, you should be sure to
Answer:
Explanation:
During a college visit you should be sure to ask questions of current students. Community colleges have smaller campuses than four-year institutions do; as such, you'll likely have much more direct access to students than at larger schools where students are spread across multiple buildings or even campuses.
List three strategies you should use when closely reading an informational passage on the SAT?
Answer:
focus, study, listen, avoid distractions, etc
Explanation:
be kind, education is important, don't cheat, etc. you got this :D
One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was revealed that they watched an average of 151 hours each month with a standard deviation of 32 hours. Assume that the underlying population distribution is normal. Define the random variable X in words
The random variable X represents the number of hours Americans spend watching television each month.
In the given scenario, 108 Americans were surveyed, and it was found that they watched an average of 151 hours each month, with a standard deviation of 32 hours. The random variable X helps us quantify and describe the distribution of this data. By defining X as the number of hours spent watching television, we can analyze and make inferences about the population's television viewing habits. The random variable X in this scenario represents the number of hours an individual American spends watching television each month. Each survey respondent's value of X corresponds to the number of hours they reported watching TV. The random variable X allows us to quantify and analyze the variability in TV viewing habits among the surveyed American population.
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Course 3 chapter 5 triangles and the pythagorean theorem
The pythagorean theorem is used to calculate the lengths of a right triangle
The hypotenuse of the triangle is 6.5 cm
How to determine the hypotenuse of the triangle?From the complete question, we have the following side lengths
Opposite = 5.7 cmAdjacent = 3.2 cmThe hypotenuse of the triangle is then calculated as:
Hypotenuse^2 = Opposite^2 + Adjacent^2
This gives
Hypotenuse^2 = 3.2^2 + 5.7^2
Evaluate the sum
Hypotenuse^2 = 42.73
Take the square root of both sides
Hypotenuse = 6.5
Hence, the hypotenuse of the triangle is 6.5 cm
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how much flower do you need for a cake
Answer:
1 cup also it is flour
Explanation:
Answer:
It truly depends on what kind of cake your trying to make, but if you look up an easy cake recipe then it should tell you. Usually 2-3 cups of flour are at least needed
Explanation:
The defense is allowed to slap or rip the ball away from the offensive player.
O True
False
~A certain rectangular prism has a height of h inches, a width that is 3 inches less than its height, and a length that is 4 inches more than its height. Ifthe area ofthe base of the prism is 60 square inches, what is the volume of the prism, in cubic inches?
Answer:
Volume = 480 cubic inches
Explanation:
We have the following relationships to work with
width w = h -3
length l = h + 4
area of base of prism a = l x w = 60 (1)
area of base in terms of h = (h-3)(h+4) =h² -3h + 4h -12 (2)
Setting (1) = (2) gives
h² + h -12 =60
h² + h -72 = 0
Factoring the LHS we get
(h+9)(h-8) = 0
The solutions for h are
h + 9 = 0 ==> h = -9
h - 8 = 0 ==> h = 8
Since h cannot be negative, h = 8 inches
Volume = base area x h = 60 x 8 = 480 cubic inches
Note
We do not have to calculate length and width separately, but if so,
w = 8 -3 = 5
l = 8 + 4 = 12