Answer:
The edge length of a BCC unit cell is 352 pm
Explanation:
When all angles are exactly 90 degrees, all lengths are identical, and each axis is designated by a Cartesian coordinate, the cubic unit cell is the smallest repeating unit (x,y,z). Eight atoms are located at each corner of each cubic cell, and eight other cells share each atom.
Is the fcc a cubic cell?Atoms are found at the corners and centers of every cube face in FCC, which is also a cubic structure. Four atoms make up an FCC unit cell, with each corner atom representing a 1/8 atom and each face center atom representing a 1/2 atom. FCC crystals have an APF of 0.74.
Ferrite is the name of the alpha phase. Steels frequently contain the mineral ferrite, which has a Body Centred Cubic (BCC) structure that is less tightly packed than FCC.
For instance, the cubic crystal structure is made up of three different types of unit cells: plain cubic, face-centered cubic, and body-centered cubic.
The following is the formula for calculating edge length:
a = √8 × r where r = radius and a = edge length
Given: r = 158 pm
changing the values in the formula above.
a = √8 × 175 = 352 pm
Therefore, the edge length will be 352 pm.
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True or false: The bus driver is acting like a tourist. True False
Answer:
True
Explanation:
Edge 2022
in order for a survey to accurately generalize the entire population, the survey must
In order for a survey to accurately generalize the entire population, the survey MUST select participants in a RANDOM mode, and sampled individuals must have an EQUAL LIKELIHOOD of being chosen.
Random sampling refers to the sampling methodology by which each item or element of the target population exhibits the same probability of being included in the sample.
Random sampling represents the most reliable methodology of probability sampling.
Because samples are selected in a random mode, any research using a random sampling approach has high internal and external validity.
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What is the polynomial 3y2 (y 7)2 – 15 after it has been fully simplified and written in standard form? 4y2 34 3y2 y 34 4y2 14y 34 4y4 34
Answer:
What is the polynomial 3y2 + (y + 7)2 – 15 after it has been fully simplified and written in standard form?
A) 4y2 + 34
B) 3y2 + y + 34
C) 4y2 + 14y + 34 <<<CORRECT
D) 4y4 + 34
Explanation:
Dec. 2021 Edge Cumulative exam
The polynomial [tex]3y^2 (y 7)^ 2 - 15[/tex] after it has been fully simplified and written in standard form as [tex]4y^4 + 34[/tex].
A polynomial is an expression in mathematics that consists of variables (also known as indeterminates) and coefficients.
It involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables. x2 4x + 7 is an example of a polynomial with a single indeterminate x.
A polynomial is a mathematical expression made up of indeterminates and coefficients that only involves the operations of addition, subtraction, multiplication, and positive-integer powers of variables.
To fully simplify and write the polynomial [tex]3y^2(y-7)^2 - 15[/tex] in standard form, we first need to expand the squared binomial:
[tex](y-7)^2 = (y-7)(y-7) = y^2 - 14y + 49[/tex]
Now we can substitute this expression back into the original polynomial and simplify:
[tex]3y^2(y-7)^2 - 15 = 3y^2(y^2 - 14y + 49) - 15\\= 3y^2y^2 - 42y^3 + 147y^2 - 15\\= 3y^4 - 42y^3 + 147y^2 - 15[/tex]
So the fully simplified polynomial, written in standard form, is:
[tex]3y^4 - 42y^3 + 147y^2 - 15[/tex]
Therefore, the correct answer is [tex]4y^4 + 34.[/tex]
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which statement best explains the difference between polar and nonpolar covalent bonds?
Answer:
Nonpolar covalent bonds involve two atoms that have equal electonegativity whereas polar covalent bonds involve two atoms that are unequal in their electronegativity.
Explanation:
Polar covalent bonding is a type of chemical bond where a pair of electrons is unequally shared between two atoms.If the electronegativity of two atoms is basically the same, a nonpolar covalent bond will form, and if the electronegativity is slightly different, a polar covalent bond will form.
A covalent bond is a force that joins two atoms of non-metallic elements to form a molecule. Atoms share pairs of electrons from their most superficial layer (called the valence layer) to achieve the stability of the molecule that has been formed with the bond and thus comply with the octet rule.
On the other side, electronegativity refers to the tendency of the atom of a given element to attract electrons.
So, the covalent bond between two atoms can be polar or nonpolar.
Polarity depends on the difference in electronegativity of the joining elements. The greater the electronegativity difference, the greater the polar character of the bond. The most electronegative element will be the one that most strongly attracts the shared electrons, then a negative partial charge will be generated on said element, while a positive partial charge will be generated on the other element (less electronegative).
Finally, nonpolar covalent bonding occurs when pairs of electrons are shared between atoms that have the same or very similar electronegativity, favoring an equitable distribution of electrons.
In summary, the correct answer is: Nonpolar covalent bonds involve two atoms that have equal electonegativity whereas polar covalent bonds involve two atoms that are unequal in their electronegativity.
which essential urban need was met by this structure
Answer:
Clean waterExplanation:
Hope this helps :}
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In basketball, hang time is the time that both of your feet are off the ground during a jump. The equation for hang time is t = 2 (StartFraction 2 h Over 32 EndFraction) Superscript one-half , where t is the time in seconds, and h is the height of the jump, in feet. Player 1 had a hang time of 0.9 s. Player 2 had a hang time of 0.8 s. To the nearest inch, how much higher did Player 1 jump than Player 2? in.
Answer:
8in
Explanation:
edge 2020
The amount of height that player 1 jumped higher than player 2 to the nearest inch is; 8 inches
How to substitute values into an equationWe are given the hang time equation as;
t = 2(2h/32)^(½)
Where;
h is height of jump
Hang time of player 1 = 0.9 s
Hang time of player 2 = 0.8 s
Let's make h the subject of the hang time equation to get;
h = 2t²
For player 1;
h1 = 2(0.9)²
h1 = 3.24 ft
Converting to inches gives;
h1 = 38.88 inches
For player 2;
h2 = 2(0.8)²
h2 = 2.55 ft
Converting to inches gives
h2 = 30.72 inches
Difference in jump height = h1 - h2
Difference in jump height = 38.88 - 30.72
Difference in jump height ≈ 8 inches
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A person suffering from anorexia nervosa typically suffers from which of the following health issues? A. low blood pressure B. thin/weak bones C. damage to internal organs D. all of the above Please select the best answer from the choices provided. A B C D
Answer:
The answer is d. all of the above.
Explanation:
The individual suffering from anorexia mainly focus to maintain their body weight and shape. This might damage their internal organs as the individual do not eat proper amount of food. The bones become weak and thin as sufficient amount of energy is not possible in the body. The individual might suffers from the hypotension due to low levels of the ions in the body.
A person suffering from anorexia nervosa typically suffers from all the above options explained. Thus the correct option is D.
What is anorexia nervosa?Anorexia is an eating disorder characterized by unusually low body weight, persistent anxiety about gaining weight, and an incorrect perception of the weight of an individual.
A key priority for anorexics is maintaining their size and physical appearance, which drives them to make hard work and determination that can seriously disrupt their lives.
As a result of their extremely underweight and unhealthful physique, anorexics frequently lack their natural glow, making them appear dull and faded. It also appears as damage to internal organs due to a lack of nutrients.
Therefore, option D is appropriate.
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which of the following could not be used to determine reaction stoichiometry?
Reaction stoichiometry is the type of reaction where there is a total eradication of the quantities that are used in the reaction.
This is used to measure the type of reaction such as corrosion and the likes.
As a result of this, the best way to determine reaction stoichiometry is:
Make sure that the equation is balancedMake the necessary conversion to the SI units to molesMake the necessary calculationsConvert the moles to the required SI unitsPlease note that your question is incomplete, hence i gave you a general overview which should help you get the correct answer.
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A ________ is a membrane-bound sac found in cells that contains digestive enzymes which break down complex molecules or structures. Question 13 options: Chloroplasts Mitochondrion Lysosomes Vacuole
Answer:Lysosomes
Explanation:
membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
write two to three sentences explaining the pun on the name ernest in the passage and how the pun connects to a serious issue or question.
Answer:
Throughout the play, Wilde uses puns to connect the name Ernest to the word earnest. When Cecily says that she has always wanted to marry someone named Ernest, she implies that she also wants someone earnest who “inspire[s] absolute confidence.” In this scene, however, Algernon is lying to her about who he is. His deception suggests that no one can ever have “absolute confidence” that others are being earnest.
Explanation:
Wilde utilizes puns throughout the play to tie the name Ernest to the term earnest.
The Importance of Being Earnest:Ernest is a given name that is derived from the word earnest. The term earnest refers to sincerity, yet Ernest in "The Importance of Being Earnest" is anything but.
Ernest adopts many identities or occupations, but none of them are authentic since he isn't himself. Finally, he understands why it is critical to be "honest" and loyal to himself. At the end of the novel, being "earnest" and being "Ernest" have the same meaning, since the main character, Ernest, learns the significance of being true to oneself.
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What does the underlined word mean in the following sentence? La abuela se rompió un brazo. broke her arm broke her leg broke her nose broke her finger
Answer:broke her arm.
Explanation:
The meaning of the underlined word "rompió un brazo" is;
A: broke her arm.
The underlined word in the sentence is; "rompió un brazo".
Let us analyze each of the options;
Option D; Broke her finger; In spanish this is called; rompió un dedoOption C; broke her nose; In spanish this is called; se rompió la narizOption B; broke her leg; In spanish, this is called; se rompió la piernaOption A: broke her arm; In spanish, this is called; rompió un brazo"Thus, option A is the correct answer.
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Triangle A B C is shown. The length of side A B is 3 n minus 2. The length of side B C is 2 n. The length of side A C is n 3. Triangle ABC is shown in the diagram. The lengths of the sides are in terms of the variable n, where n ≥ 4. Complete the inequality. m∠ < m∠ < m∠
Answer:
b,a,c
Explanation:
Answer:
m∠ B < m∠ A < m∠ C
Which of the following is the best definition of deposition in geology?(1 point) the creation of volcanic rock when liquid magma hits the ocean and cools the creation of volcanic rock when liquid magma hits the ocean and cools the creation of any metamorphic rock the creation of any metamorphic rock laying down of sediment in layers carried by wind, water or ice laying down of sediment in layers carried by wind, water or ice the mixing of many layers of sediment by wind, water or ice
Laying down of sediment in layers carried by wind, water or ice is the best definition of deposition in geology. Thus option C is correct.
What is geology?The main branch of Earth science, geology, studies how the earth was created, as well as its makeup and the processes that impact it. Natural humanity's field of geology is interested with Earth and other celestial objects, the structures or rocks that make them up, and also the mechanisms that cause these shifts over time.
A deposition is the act of depositing sediment that has been carried by the air, water, seas, or ice. Granules, sand, clay, and salts that have been dissolved in the water can all be used to convey sediment.
Salts could later be accumulated through evaporation or organic action. Traditionally, sedimentary rocks are found in strata known as strata. Younger layers sit on top of older levels in unbroken strata. Therefore, option C is the correct option.
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The question is incomplete, the complete question will be :
Which of the following is the best definition of deposition in geology?(1 point)
A:the creation of volcanic rock when liquid magma hits the ocean and cools
B:the mixing of many layers of sediment by wind, water or ice
C:laying down of sediment in layers carried by wind, water or ice
D:the creation of any metamorphic rock
a 15.0 kg block is attached to a very light horizontal spring of force constant 575 n/m and is resting on a smooth horizontal table (figure 1). suddenly it is struck by a 3.00 kg stone traveling horizontally at 8.00 m/s to the right, whereupon the stone rebounds at 2.00 m/s horizontally to the left.
The instantaneous velocity of the 15 kg. mass just after collision can be found by the principle of linear momentum.
a) The speed of the 15 kg. just after collision is 2 m/s.
b) The type of collision is inelastic collision
c) The compression of the spring is approximately 0.323 m.
Reasons:
The given parameters are;
Mass of the block attached to the spring, m₁ = 15.0 kg
Force constant of the spring, K = 575 N/m
Mass of the stone that strikes the block, m₂ = 3.00 kg
Speed of the stone, v₂ = 8.00 m/s
Speed with which the stone rebounds, v₃ = 2.00 m/s
a) The total initial momentum = 3 kg. × 8 m/s = 24 kg·m/s
The final momentum, just after collision = 3 × (-2) kg·m/s + 15 kg ×v₁
By conservation of momentum, we have;
24 kg·m/s = 3 × (-2) kg·m/s + 15 kg ×v₁
[tex]v_1 = \dfrac{24 \, kg \cdot m/s + 6 \, kg \cdot m/s}{15 \, kg} = 2 \, m/s[/tex]
The speed of the 15 kg. just after collision, v₁ = 2 m/s.
b) A collision is elastic when the kinetic energy of the collision is conserved
The initial kinetic energy, K.E.₁ = 0.5 × 3 kg. ×(8 m/s)² = 96 J
The sum of the final kinetic energy are;
0.5 × 3 kg. × (2 m/s)² + 0.5 × 15 kg × (2 m/s)² = 36 J
The initial kinetic energy ≠ The final kinetic energy
Therefore, the collision is not elastic
(c) The kinetic energy given by the block = The elastic potential energy gained by the spring
Kinetic energy of the block, K.E. = 0.5 × 15 kg × (2 m/s)² = 30 J
Elastic energy gained by the block = 0.5 × K × x² = 0.5 × 575 N/m × x²
Therefore;
0.5 × 575 N/m × x² = 30 J
[tex]x^2 = \dfrac{30 \, J}{0.5 \times 575 \, N/m} = \dfrac{12}{115} \, m^2[/tex]
[tex]x = 2 \cdot \sqrt{\dfrac{3}{115} } \approx 0.323[/tex]
The compression of the spring, x ≈ 0.323 m.
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Questions;
(a) The speed of the 15 kg mass immediately after the collision.
(b) Determine the type of collision; Elastic or inelastic collision.
(c) The distance to which the spring is compressed by the block.
People with power commit deviant acts to obtain economic rewards. Please select the best answer from the choices provided T F
Answer:
T
Explanation:
Answer:
False
Explanation:
which expression is equivalent to 3x−12y+223y−56x 3 x - 1 2 y + 2 2 3 y - 5 6 x ?
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
Equivalent to 3x−12y+223y−56x 3 x - 1 2 y + 2 2 3 y - 5 6 x is:
-168 x^2 - 27 x + 221 y (-168 x - 27) x + 221 y 221 y - 3 x (56 x + 9)What are the three fundamental principals of mnemonics?
The three fundamental principles underlying the use of mnemonics are imagination, association, and location.
What is mnemonics?
Mnemonics are memory-enhancing techniques. They are frequently taught in schools to aid in learning and memory.
Chunking or grouping information is a mnemonic technique that simplifies information into groupings, phrases, words, or figures that are simpler to remember.
Chunking is used to arrange things like credit cards, phone numbers, and Social Security numbers. Interesting studies have been done on persons with moderate Alzheimer's disease using a variety of mnemonic techniques, including chunking.
According to the findings of these investigations, chunking can benefit in the early stages of dementia by enhancing verbal working memory.
Therefore, The three fundamental principles underlying the use of mnemonics are imagination, association, and location.
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according to maslow, employment is an example of which type of need?
Employment can be considered as example of safety and security, which are types of human needs according to Maslow.
Maslow theory is about human Physiological needs. Physiological needs can be regarded as biological requirements that are very Essential for human survival.These could be food, drink, shelter as well as clothing.However, there are higher needs that needed to be met for human survive in term of safety and security, and employment is part of it.Employment as a needs helps man to cater for other needs such as shelter, foods, as easy living.Therefore, Maslow let us know that man Physiological needs are very essential for his security.
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a model of memory processing ranging from shallow to deeper processing is called
A model of memory processing ranging from shallow to deeper processing is called: levels of processing model.
What is a memory?A memory can be defined as a terminology that is used to describe the available space on an electronic device that is typically used for the storage of data or any computer related information such as:
ImagesVideosTextsMusicCodesFoldersIn computer science, the levels of processing model refers to a model of memory processing ranging from shallow to deeper processing and it was developed by Fergus Craik and Robert Lockhart in 1972.
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in the law of superposition which layer is the oldest brainly
what is the result of dividing 2x3+6x2+6x+2 by x+1 ?
Answer:
b
Explanation:
hennrhnthnth tj t tjn4n4un4un
What do the descriptive details in this passage convey? Select three options. sensory information related to sound sensory information related to smell suspense and excitement a visual depiction of a character a visual depiction of an object
Answer:
A,C,E
Explanation:
The descriptive details in the passage convey that sensory information related to sound, suspense & excitement a visual and a visual depiction of an object
What is descriptive details?In this context, a descriptive details means some type of details that allow sensory recreations, experiences, objects, imaginings etc
Hence, the descriptive details in the passage convey that sensory information related to sound, suspense & excitement a visual and a visual depiction of an object.
Therefore, the Option A, C and E is correct.
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in 2013 the number of students in a small school is 284
Answer: ok
Explanation:
A bart chart shows election years on the x axis and percentage of voters on the y axis. 2008: Democrats, 66; Republicans, 32. 2012: Democrats, 60; Republicans, 38. Look at the bar graph. What is the best conclusion that someone can draw about the youth vote in recent presidential elections? The same number of youth voted in 2008 as in 2012. Most young voters favor Republican candidates. Most young voters favor Democratic candidates. Young voters represent most of the electorate.
Answer:
Option C- Most young voters favor Democratic candidates.
Explanation:
Edge 2021
Most young voters favor Democratic candidates. The correct option is C.
What is a bar graph?The visual display of data (often grouped) in the shape of vertical or horizontal rectangular bars, with the length of the bars corresponding to the measure of the data, is called a bar graph.
Bar charts are another name for them. One tool used in statistics for processing data is the bar graph.
When displaying the distribution of data points or comparing metric values across several subgroups of your data, a bar chart is employed.
A bar graph allows us to determine which groupings are most numerous or prevalent as well as how different groups stack up against one another.
The most accurate assessment of the youth vote in the most recent presidential elections is that majority of them support Democratic candidates.
Thus, the correct option is C.
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Study the image. Which statement best describes the rock? The rock has fine grains. The grains of the rock are sharp or jagged. The rock is banded. The bands of the rock run from the top to the bottom.
Fine grain are refered to as rocks or grains that has low graininess so that some have enlargement without undue coarseness present. The statement that best describes the rock is that the rock has fine grains.
A rock is commonly referred to as any naturally solid mass, aggregate of minerals or mineraloid matter.Rocks does have chemical composition and are usually grouped into three main groups: igneous rocks, metamorphic rocks and sedimentary rocks
Conclusively, The fine-grained texture shows that the fast cooling lava did not have time to grow large crystals.
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Answer:
A
Explanation:
edge
which graph represents y=⌈x⌉over the domain 3≤x≤6 ?
Answer:
i cant see the graphs
Explanation:
what is the energy conversion during cellular respiration?
describe one way an invasive species, such as the zebra mussel, can decrease the carrying capacity for a native species in an ecosystem.
The zebra mussel is an invasive species that decrease the carrying capacity of native species by competing for limited food resources. Invasive species are harmful to the homeostasis of an ecosystem.
The carrying capacity refers to the maximum population size of a species sustained by specific environmental conditions.
The factors that affect the carrying capacity include the availability of both biotic (e.g., food, presence of invasive species, etc) and abiotic (e.g., water, habitat) resources.
For example, Zebra mussels, and Quagga mussels are invasive species that can decrease the carrying capacity of native mussels by taking away limited food and attaching themselves to the native mussels.
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a ball is thrown straight downward with a speed of 0.80 meters per second. what is the speed of the ball 0.60 seconds after it is released? [ignore air resistance.]
The speed of the ball 0.60 seconds after it is released is 6.8 m/s.
Newton's law of motion is given by:
v = u + gt
where v is the final velocity, u is the initial velocity, g is the acceleration due to gravity and t is the time.
Given that:
u = 0.8 m/s, g = 10 m/s², t = 0.6s. Hence:
v = 0.8 + 10(0.6)
v = 6.8 m/s
Therefore the speed of the ball 0.60 seconds after it is released is 6.8 m/s.
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Using the drop-down menus, choose the best words to answer the questions. Which synonym changes "expensive" to a word with a positive connotation in the sentence "He lived a very expensive lifestyle"? Which synonym changes "ordinary" to a word with a negative connotation in the sentence "She had a very ordinary day at school"? Which synonym changes "wild" to a word with a neutral connotation in the sentence "The horse was very wild"?
Answer:
1 Lavish
2 dull
3 untamed
Explanation:
Just did this question.
The correct words or synonyms are
LuxuriousMundane and Untamed.The explanation of the above synonymsWhich synonym changes "expensive" to a word with a positive connotation in the sentence "He lived a very expensive lifestyle"?
- Luxurious
Which synonym changes "ordinary" to a word with a negative connotation in the sentence "She had a very ordinary day at school"?
- Mundane
Which synonym changes "wild" to a word with a neutral connotation in the sentence "The horse was very wild"?
- Untamed
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