Answer:
[tex]workdone \: in \: stretching \: a \: spring \: = \frac{1}{2}ke {}^{2} \\ workdone = \frac{1}{2}fe \\ beause \: f = ke \\ f = 1000 \: \: x = 50cm \: = 0.5m \\ w = \frac{1}{2} (100)(0 .5) { }^{2} \\w = 12.5 \: newtonpermetre[/tex]
A longitudinal wave is observed to be moving along a slinky
Explanation:
A longitudinal wave is composed of compressions and rarefactions. An example of a lomgitudinal wave is sound waves. It's a type of wave thay moves parrelel to axis.
The process of writing a polynomial as a product is called
Answer:
Factoring
Explanation:
The opposite can be called distributing
yall tmr my birthday and my SAT i rlly need help on this question
Answer:
B
Explanation:
I added the 1 to 4 and the 5 or more to get the numerator and then plugged in 100 as the denominator to get the probability.
p.s. have the loveliest birthday ever and good luck on your SAT's
Rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round.
The angular speed simply describes the way that things turn which is described in units such as revolutions per minutes, degree per seconds, etc.
What is angular speed?Your information is incomplete as the diagram isn't provided. Therefore, an overview will be given.
It should be noted that angular speed simply means the measure of how fast the central angle of the rotating body changes with respect to time.
The angular speed is simply calculated by multiplying the angle of rotation and the time taken to complete the rotation.
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Which is one way surface water may become groundwater
Surface water becomes groundwater through infiltration.
What is infiltration?Infiltration is a term to refer to the method by which water seeps into the ground to recharge underground water reservoirs. In this process, the water molecules pass through the soil and are grouped in underground water deposits.
Why is groundwater important?Groundwater is important because it is a reservoir of fresh water for consumption. Additionally, these reservoirs help preserve the surrounding vegetation species.
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Calculate the ph when 20.0 ml of 0.150 m koh is mixed with 20.0 ml of 0.300 m hbro (ka = 2.5 × 10⁻⁹)
The pH of the solution is 10.74. the pH refers to the hydrogen ion concentration. It is a measure of the acidity of the solution.
What is pH?pH is the degree of acidity or alkalinity of a solution.
The equation of the reaction is;
KOH + HBrO ==> KBrO + H2O
The number if moles of KOH =20.0 ml x 1 L / 1000 ml x 0.150 mol/L = 0.003 moles KOH
The number of moles of HBrO = 20.0 ml x 1 L / 1000 ml x 0.300 mol/L = 0.006 moles HBrO
Since the reaction is 1:2;
[BrO-] = 0.003 mols / 0.04L = 0.075M
Now the pH, is obtained from;
KBrO + H2O ==> KOH + HBrO
BrO- + H2O ==> HBrO + OH-
Kb of BrO- = 1x10-14 / 2.5x10-9 = 4x10-6
Kb = 4x10-6 = [HBrO][OH-] / [BrO-]
From the ICE table;
4x10^-6 = (x)^2 / 0.075
x = 5.48x10-4 M = [OH-]
pOH = -log 5.48x10-4 M = 3.26
pH = 14 - pOH
pH = 10.74
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The amount of money an accountant makes, m, for working h hours can be represented by the equation m=29.4h. what is the constant of proportionality of the equation?
Which additional fact would prove that quadrilateral wxyz is a parallelogram?
The quadrilateral wxyz has four sides
The additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ
How to prove that wxyz is a parallelogram?For a shape to be a parallelogram, the folllowing must be true
The shape must be a quadilateralThe opposite sides of the shape must be congruentThe opposite sides of the shape must be parallelHence, the additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ
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a student wants to determine whether a certain problem is undecidable. which of the following will demonstrate that the problem is undecidable?
A scenario which demonstrate that the problem is undecidable is when for an instance of the problem, no algorithm written provides a correct YES or NO answer.
What is an algorithm?An algorithm can be defined as a standard formula and procedures with a set of finite steps and instructions that are executed on a computer system, in order to proffer solutions to a specific problem under appropriate conditions.
This ultimately implies that, a scenario which demonstrate that a certain problem is undecidable is when for an instance of the problem, no algorithm can be written by a programmer is capable of providing either a correct YES or NO answer.
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20.1 justifying circumference and area of a circle answers
Answer:
c=2pir and A=2pir its answer i think so
Question 1 with 1 blank rafael y lola 1 of 1 en la clase pero no se hablaron. Question 2 with 1 blank anoche julia y francisco 1 of 1 en el cine a las siete. Question 3 with 1 blank cuando mi prima y yo nos saludamos, siempre 1 of 1. Question 4 with 1 blank elena y yo siempre 1 of 1 con la tarea. Question 5 with 1 blank leonor y david 1 of 1 por correo electrónico
These are the complete sentences using the preterite tense:
Rafael y Lola se vieron en la clase pero no se hablaron.Anoche Julia y Francisco se encontraron en el cine a las siete.Cuando mi prima y yo nos saludamos, siempre nos abrazamos.Elena y yo siempre nos ayudamos con la tarea.Leonor y David se escriben por correo electrónico.What is the preterite tense?In this exercise, the sentences are conjugated in the preterite tense.
The Spanish preterite tense ("pretérito perfecto simple" in Spanish) is used to talk about actions completed at some point in the past.
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The box plot and table represent data on the number of points scored per game for two players, player a and player b, in their last 13 basketball games.
If you were the coach, the player I would want on my team would be player A.
Which player would I want on my team?
The player I would want on my team is the better player.
Statistics of Player A:
Minimum score = 14
Maxium score = 40
First quartile = 25
Median = 31
Third quartile = 33
Statistics for Player B:
Arranging Player B's scores in ascending order: 8, 21, 22, 22, 25, 25, 26, 28, 29, 31, 32, 35, 46
Minimum score = 8
Maxium score = 46
First quartile = 1/4(13 + 1) = 22
Median = 26
Third quartile = 3/4(13 + 1) = 31.5
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What aspects of traditional religion have been integrated into the Christian faith? (5mks)
Answer:
Traditional religion and the Christian faith share a lot of things besides being a daily practice, the most important is believing in ONE supreme god that created us humans and life after death. Traditional religion believes in praying for mercy and forgiveness and believes god reveals himself to people through special dreams or events.
Explanation:
Choose the best spanish word to complete the sentence. ________ (speak) más despacio, por favor. Hablo hablar habla hablan
Answer:
Its actually Habla
Explanation:
The best Spanish word for speak is habla. Thus, option third is correct.
How to complete Spanish sentences?The words must be put in a sequence that makes perfect sense in order for the phrase to be successfully completed.
The subject of the sentence must agree with the verb, meaning that the conjugation chosen is the correct one for the verb in the issue.
In the sentence "más despacio, por habla favor", the verb "habla" which refers to speak. The present tense (indicative) first person singular of the verb "hablar" is "hablo." "Habla" wouldn't be appropriate here. The third-person conjugation may be the cause.
Therefore, Habla is the most appropriate Spanish term meaning talk. So, the third choice is the best one.
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Western and central europe: 740,000 adults and children living with h i v and 12,000 deaths due to h i v. eastern europe and central asia: 1.7 million with h i v and 84,000 deaths. east asia: 750,000 with h i v and 43,000 deaths. south and southeast asia: 7.8 million with h i v and 90,000 deaths. oceania (including australia and new zealand): 81,000 with h i v and 4,000 deaths. middle east and north africa: 460,000 with h i v and 36,000 deaths. sub-saharan africa: 24.7 million with h i v and 2.1 million deaths. which area of the world has the most people living with hiv/aids? the middle east and north africa sub-saharan africa south and southeast asia eastern europe and central asia
Answer:
B. Sub-Saharan Africa
Explanation:
match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. use each word only once.
The correct matching of the words to the right definitions are:
Massive star supernova → 2Nova → 3Electron degeneracy pressure → 1What is the matching of words?The matching of words to an appropriate term is described as an assessment method of identifying or determining the true purpose of that term or an item, the function it serves, and sometimes the definition of the word.
Let's assume we have the disorganized words with some terms:
Words;
massive star supernovanovaelectron degeneracy pressureDefinitions;
The radius of a white dwarf is discerned by an equilibrium between the inward force of gravity and the outward push of A(n) appears when fusion produces iron in the core of a star.A(n) takes place when hydrogen fusion kindles on the surface of a white dwarf in a binary system.The correct matching of the words to the right definitions are:
Massive star supernova → 2Nova → 3Electron degeneracy pressure → 1Learn more about matching words here:
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Choose a physical feature discussed in this unit. In a paragraph of 125 words, discuss its effect on the sub-sahara's physical and human geography
The physical feature in Sub-sahara chosen in this scenario is the river.
What is Sub-sahara?This is an area found in Africa which has realm of plateaus and basins with four main river systems.
The river allows for more influx of people into the area as a result of the presence of water which can be used for agriculture and other important sources .
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Answer:
A very important feature partly in the Sub-Sahara of Africa is the Great Rift Valley which stretches for about 6000km from Syria to Mozambique is a block faulted valley, 30 to 60 miles wide which represents a rift in the African plate of plate tectonics, similar to the ones under the ocean like the mid-Atlantic ridge. It has fertile soil in it, partly from volcanoes like Mt Kilimanjaro, and also many large lakes like Lake Tanganyika, It provided a rich environment due to the soil and the lakes for example, for the Bantu people in the past, many of which had their kingdoms here. Ancient human remains have been found in its soil by Richard Leakey.
Algebra structure and method book 1 mcdougal littell answer key
An example of Algebra structure work is simplify (8-3)+3.
What is algebraic structure?In mathematics, an algebraic structure is known to be a term that is made up of a nonempty set A, a combination of operations on A of finite series and a finite group of identities.
To simply this equation, (8-3)+3.
One has to follow the order of operations using the P.E.M/D.A/S technique, the expression that are in the parenthesis have to be solved first.
2 of 3
(5)+3 = 8
Therefore, the answer is 8
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Calculate, to four decimal places, the first ten terms of the sequence. an = 1 + − 1 2 n
The sum of the first ten terms of the given sequence when approximated to four decimal places is; 9.6758
What is the sum of the sequence?
We are given the formula for the sequence as;
aₙ = 1 + (⁻¹/₂)ⁿ
Thus;
First term; a₁ = 1 + (⁻¹/₂)¹ = 0.5
a₂ = 1 + (⁻¹/₂)² = 1.25
a₃ = 1 + (⁻¹/₂)³ = 0.875
a₄ = 1 + (⁻¹/₂)⁴ = 1.0625
Fifth term; a₅ = 1 + (⁻¹/₂)⁵ = 0.96875
a₆ = 1 + (⁻¹/₂)⁶ = 1.01563
a₇ = 1 + (⁻¹/₂)⁷ = 0.99219
a₈ = 1 + (⁻¹/₂)⁸ = 1.00391
a₉ = 1 + (⁻¹/₂)⁹ = 0.99805
Tenth term; a₁₀ = 1 + (⁻¹/₂)¹⁰ = 1.0098
Thus, sum of all those ten terms is;
S₁₀ = 9.6758
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Approximate the sum of the series correct to four decimal places.
Answer:
Example;
To round off 6.0056 to the nearest hundredths, the thousandth digit is checked and is equal to 5.
Add one unit to the hundredth digit and drop all the digits that come after it.
The answer is therefore, 6.01.
south american country that hosted the first fifa world cup
Answer:
URUGUAY
Explanation:
1.0 l of a buffer is prepared. it contains 0.125 m ha (pka = 4.74) and 0.115 m a−. what is the ph of this buffer after 0.0100 mol of strong acid is added?
Answer:
pH=4.63
Explanation:
pH = pKa + log(base/acid)
Why does it rain more in west ferris than in east ferris
If two supplementary angles are congruent what is the measure of each
90° because l think each right angle is equal to 90°
A parking lot in the shape of a trapezoid has an area of 12,052.1 square meters. the length of one base is 82.4 meters, and the length of the other base is 108.6 meters. what is the width of the parking lot?
Answer:
When you solve for the area of a trapezoid, you have this formula:
A = ((a + b)/2) * h
where: a & b are the bases ; h is the height
We just plug in the figures on the formula to get the needed information.
A = 12,052.10 square meters
a = 82.4 meters
b = 108.6 meters
12,052.10 = ((82.4 + 108.6)/2) h
12,052.10 = 191/2 * h
12,052.10 = 95.5 * h
12,052.10 / 95.5 = h
126.2 = height
The height of the parking lot is 126.20 meters.
Explanation:
17.1 angles of rotation and radian measure answers
The angles of rotation is described as an angle that is created by the beginning and ending positions of a ray that is known to moves in circles (rotates) about its own endpoint.
An example of this type of angle is given in the image attached. The image is an example of an angles that is greater than 180° and less than 0°.
What is Angles of Rotation and Radian Measure?The measurement of a radian of an angle is known to be the length of the arc on the unit circle that is said to be subtended by that angle.
Note that the ways to Measure Angles is by:
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Linear constant and squaring functions are examples of
Answer:
Polynomial functions
Explanation:
I hope this helps.
Linear constant and squaring functions are examples of polynomial functions.
What do you mean by Polynomial functions?Polynomial functions may be characterized as a type of function that significantly involves the utilization of only non-negative integer powers or only positive integer exponents of a variable in equations like the quadratic equation, cubic equation, etc.
These functions are understood by mathematical concepts through which an expression consists of variables and coefficients involving only mathematical operations like addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
Examples of polynomial functions may include linear constants, cubic functions, quadratic and quartic equations, etc.
Therefore, linear constant and squaring functions are examples of polynomial functions.
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Your question seems incomplete. The most probable complete question is as follows:
Linear constant and squaring functions are examples of:
Quadratic functions.Parabola functions.Polynomial functions.What is the volume of the cone? use π ≈ 3. 14. 12. 56 cubic units 18. 84 cubic units 20. 93 cubic units 25. 12 cubic units
Answer:
Explanation:
the following formula is used to find the volume of a cone
V - volume = πr²h/3
where π = 3.14, r - radius and h - height
the height hasnt been directly given
we can find height using Pythogoras theorem for the right angled triangle given
4² + h² = 5²
16 + h² = 25
h² = 25 - 9
h² = 9
h = 3
height = 3
diameter is 4, therefore radius - diameter / 2 = 4/ 2 = 2
radius = 2
substituting values in the volume equation
V = 3.14 x 2² x 3 /3
= 12.56
volume is 12.56 cubic units
Which New Zealand cultural tradition is represented in the photo above?
A.
billy tea and damper
B.
the Waltzing Matilda
C.
haka
D.
Pakeha
C. haka edge 21-22
hope this helps
Unit 11 volume and surface area homework 3 answer key
The surface area in physic refers to the total amount of space or area that is covered by the surface of an object or matter.
What are examples of Surface Areas?The surface area of a Prism for instance is given as:
(2 × Base Area) + (Base perimeter × height);
While the surface area of a Cube is :
6 x A² where a is the length of each side.
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