The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.
The combustion of ethane in the presence of excess oxygen yields carbon dioxide and water: 2c2h6 (g) + 7o2 (g) → 4co2 (g) + 6h2o (l) the value of δs° for this reaction is ________ j/k⋅mol.
The value of entropy change (δs°) for this chemical reaction is equal to -620.4 J/molK.
What is entropy change?The entropy change of a chemical reaction can be defined as the difference between the total entropy change that is associated with the products and the total entropy change for the reactants.
In Chemistry, the standard entropy of formation for the given chemical compounds and element are:
[tex]S_{O^2}= 205\;J/molK[/tex]
[tex]S_{C_2H_6}= 229.6\;J/molK[/tex]
[tex]S_{H_2O}= 69.9\;J/molK[/tex]
[tex]S_{CO_2}= 213.6\;J/molK[/tex]
Mathematically, the entropy change of a chemical reaction is given by this expression:
[tex]\Delta S_{rxn}=\sum [n \times products]-\sum [n \times reactants]\\\\\Delta S_{rxn}=\sum [4S_{CO_2}+ 6S_{H_2O}]-\sum [2S_{C_2H_6}+ 7S_{O_2}]\\\\\Delta S_{rxn}=\sum [(4\times 213.6) + (6 \times 69.9)]-\sum [(2\times 229.6) + (7 \times 205)]\\\\\Delta S_{rxn}=\sum [854.4 + 419.4]-\sum [459.2 +1435]\\\\\Delta S_{rxn}=\sum [1273.8]-\sum [1894.2]\\\\\Delta S_{rxn}=-620.4\;J/molK[/tex]
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A 2-column table with 4 rows. The first column labeled elevation (meters) has entries 500, 1000, 1500, 2000. The second column labeled temperature of air (degrees celsius) has entries 11. 8, 8. 5, 5. 3, 2. 0. As elevation increases, temperature decreases. At which elevation will sound travel fastest? 500 meters 1,000 meters 1,500 meters 2,000 meters
Answer:
500 on edge :)
Explanation:
Answer:
A The first one! 500!
Explanation:
I got it right.
Hi, Does anyone have Collabify too?
Answer:
probably
Explanation:
there are a lot of people
A regular deck of cards has 52 cards. assuming that you do not replace the card you had drawn before the next draw, what is the probability of drawing three aces in a row?
The probability of drawing three aces in a row is the likelihood of drawing three aces
The probability of drawing three aces in a row is 0.000181
How to determine the probability?In a standard deck of 52 cards, there are 4 aces.
Given that the selection is without replacement; then we have the following selections:
First: 4 aces in 52 cardsSecond: 3 aces in 51 cardsThird: 2 aces in 50 cardsThe probability is then calculated as;
[tex]P = \frac{4}{52} * \frac{3}{51} * \frac{2}{50}[/tex]
Evaluate the products
[tex]P = 0.00018099547[/tex]
Approximate
[tex]P = 0.000181[/tex]
Hence, the probability of drawing three aces in a row is 0.000181
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scalable flexible and adaptable operational capabilities are included in
Ans The NRF guiding principles
Explanation:
The NRF is built on scalable, flexible, and adaptable concepts.
Scalable, flexible, and adaptable operational capabilities are indeed included in the (NRF)National Response Framework's five key principles.
The National Response Framework (NRF) is a comprehensive guide developed by the United States Department of Homeland Security to facilitate effective response and recovery efforts during emergencies, disasters, and incidents. The NRF's five key principles, known as the "Five Mission Areas," outline the fundamental aspects of emergency management. These mission areas include:
1. Prevention: Activities aimed at preventing emergencies or disasters from occurring. This involves measures such as risk assessment, hazard mitigation, and public education to minimize the likelihood of incidents.
2. Protection: Actions focused on safeguarding individuals, critical infrastructure, and key assets from potential threats and hazards.
3. Mitigation: Efforts to reduce the impact and severity of disasters by implementing measures to minimize the potential damage and disruption caused by hazards.
4. Response: Immediate actions are taken to address and manage the consequences of an incident. This includes coordinating emergency response activities, mobilizing resources, conducting search and rescue operations, providing medical assistance, and ensuring public safety.
5. Recovery: Activities aimed at restoring affected communities and rebuilding the impacted areas after an incident. This includes facilitating the recovery process, providing assistance to individuals and businesses, restoring critical services, and rebuilding infrastructure.
In summary, scalable, flexible, and adaptable operational capabilities are integral to the National Response Framework's five key principles, as they enable effective emergency management and response during various incidents and disasters.
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#SPJ2
Sort ideas related to three types of education into the correct categories
The ideas are to be categorized into either the "University or College", "Vocational school" or On-Job training class".
What entails the University or College?Its required two, four or more yearsIts is the most expensive optionIt is required in many field as pre-requisiteWhat entails the Vocational school?Its has technical training emphasisIt is usually two yearsWhat entails the On-Job training class?It is usually for weeks opr monthIt is for specific jobsRead more about education
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Answer:
this is the answer, here is an image that shows that answer
Explanation:
A camera is mounted on a tripod feet high at a distance of feet from george, who is feet tall. look at the model to the right. if the camera lens has angles of depression and elevation of , will george's feet and head be seen by the lens? if not, how far back will the camera need to be moved to include george's feet and head?
To capture his feet and head, the camera will need to be moved at least one foot backward. This is an Angles of Elevation and Depression theorem exercise.
What is the Angle of Elevation Theorem?The angle of elevation is the angle between the line of sight and the horizontal line when an observer looks up. While the Angle of Depression refers to the angle that is formed when the observer looks down.
The formulas are given as:
tan θ = y/x ⇒ θ = tan -1 (y/x).
How to calculate the distance required for the camera to capture Geroge completelyLet us assume that x is the distance in feet that the tripod must be moved back.
Recall that the angle of depression and elevation as given in the question (full version attached) is 20°
The height of the Tripod is 4 feet, at a distance of 10 feet, therefore,
tan (20°) * (10 + x) = 4
⇒
x =4/tan (20°)-10
x= 4/(10.989909678 - 10)
x = 0.9899
x ≈ 1 feet.
Hence the camera must be moved back about 1 feet to capture Geroge..
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If two supplementary angles are congruent what is the measure of each
90° because l think each right angle is equal to 90°
Math accelerated chapter 8 equations and inequalities answer key
In math equations and inequalities, they are said to be both mathematical sentences that is created to link two expressions such as the use of symbol >, <, ≤ or ≥. when two items are in a state of inequality.
What is equation and inequality?An equation is known to be a type of mathematical statement that depicts the equal state of two expressions. It is often depicted with the symbol = which shows equality.
While an inequality is known to be a mathematical statement that shows that two given expression is said to lesser than or more than one another.
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A wave travels 600 m/s at a frequency of 200 hz. what is its wavelength?
The wavelength of the wave traveling at the given velocity and frequency is 3m.
Given the data in the question;
Velocity of wave; [tex]v = 600m/s[/tex]Frequency; [tex]f = 200Hz = 200s^{-1}[/tex]Wavelength; [tex]\lambda = \ ?[/tex]WavelengthWavelength is simply defined as the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.
It is expressed as;
[tex]\lambda = \frac{v}{f}[/tex]
Where v is velocity and f is frequency.
To determine the wavelength of the wave, we substitute our given values into the expression above.
[tex]\lambda = \frac{v}{f} \\\\\lambda = \frac{600m/s}{200s^{-1}} \\\\\lambda = \frac{600ms/s}{200}\\\\\lambda = 3m[/tex]
Therefore, the wavelength of the wave traveling at the given velocity and frequency is 3m.
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A sales tax of 6% is added to the price of an item. if marisa buys an item, which expression indicates how much she will pay in all?
Answer:
n+6% of n
Explanation:
Let's just say n is the amount of money needed to buy that product. If 6% tax is added to that amount then that amount's 6% will be the added tax.
Answer:
n+0.06n.
Explanation:
Find out where cancún, guadalajara, and oaxaca are located in mexico and describe one interesting attraction you can find at each one.
The location and interesting attractions of the different cities of cancún, guadalajara, and oaxaca are; Described in the answer below
Where is the location of some cities?Cancun: It is a city located in the southeastern part of Mexico, in the state of Quintana Roo, in the Yucatan peninsula and one of the most famous destinations in Mexico. One thing that you can see here is the Mayan ruins known as "El Rey."Guadalajara: This city is located in western Mexico and is the capital of the state of Jalisco. One of the most important touristic attractions of this city is the Hospicio Cabañas.Oaxaca: This city is located in the state of Oaxaca at the Centro District in the Central Valleys region of the state, on the foothills of the Sierra Madre. One of the most important attractions of Oaxaca is the festival of the "Guelaguetza."Read more about City Location at; https://brainly.com/question/15563495
From a point 54.0 feet from the base of a flagpole, the angle of elevation to the top of the flagpole is 68.5°. find the height of the flagpole.
The flagpole forms a right-triangle with its base and its top
The height of the flagpole is 137.1 feet
How to determine the height?To determine the height, we make use of the following tangent trigonometry ratio
[tex]\tan(68.5) = \frac{h}{54.0}[/tex]
Where:
h represents the height of the flagpole.
So, we have:
[tex]h = 54.0 * \tan(68.5)[/tex]
Evaluate
[tex]h = 137.1[/tex]
Hence, the height of the flagpole is 137.1 feet
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Nate’s ice-cream cone has a diameter of 4 cm and a height of 14 cm. what is the approximate volume of the ice-cream cone?
Answer: 58.643 cm^3
Explanation:
Volume of a cone = (1/3) * π * r^2 * h
Half of the diameter is the radius, so r = 2 and h = 14.
Plug in: V = (1/3) * π * 2^2 * 14 = 58.643 cm^3 :)
What concept would not be a correct addition to the student's explanation about how energy flows and matter cycles through an ecosystem?
Plants use cellular respiration to break down molecules and then they use them is NOT correct to explain how energy flows and matter cycles in an ecosystem.
How do energy and matter flow in the ecosystem?The ecosystem can be considered as the interaction between abiotic (e.g., water) and biotic factors (organism) in a given area.
In an ecosystem, the matter cycle and energy flow by crossing across different trophic levels.
The trophic levels are composed of organisms that show a special localization in the food web (e.g., herbivores).
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Maslow’s hierarchy of needs is an organized progression from one’s most basic needs to less basic or discrete needs.
It should be noted thy Maslow’s hierarchy of needs is an organized progression from one’s most basic needs to less basic or discrete needs.
What is Maslow’s hierarchy of needs?Maslow’s hierarchy of needs serves as the organization of human needs from top yo bottom of the needs scale.
The needs are are classified as;
physiological (food and clothing) safety (job security) love and belonging needs self-actualization.Therefore, the given statement is correct.
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Answer:
It's True
Explanation:
8-5 skills practice using the distributive property page 33
This exercise refers to the explanation of what distributive property is especially in relationship to addends.
What is distributive property?The process of obtaining the product of the addition of two or more addends by a figure that gives the same result as multiplying each addend individually by that figure and then adding their products together is referred to as distributive property.
How is Distributive Property Applied?A great example of distributive property is given below:
When asked for the answer of 5 (6 +1), applying distributive property, we have:
5(6+1) = 5 x 6 + 5 X 1 = 35.
Note that the 5 outside the bracket is used to multiply everything inside the bracket, hence the effect of Distributive Properties.
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Consider the following claim: group behavior can increase the chances for an individual and a species to survive and reproduce
__________ is the source error that can be avoided by locating questions sensitive to bias and changing or dropping them.
Answer: social desirability .
Explanation: your welcome <3 .
Big ideas math geometry student journal answer key chapter 9
An example of Big ideas math geometry student journal question is what percentage of 260 is 65?
What is Big Ideas Math?This is known to be a very popular Core Curriculum that has been set for Middle School and High School Mathematics. It was found to be written by Ron Larson and Laurie Boswell.
To solve for the percentage of 260 that is 65, one has to categorized them
Percentage will be p:
So the equation will be:
p. 260 - 65
p = 65/ 260
p = 0.25 which is approximately 25 percent.
Therefore a percentage of 260 that is 65 is 25%.
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Big ideas math algebra 1 student journal answer key
Answer:
thats not a real question and just look lt up
Explanation:
The term “Kiwi” as a nickname for New Zealanders comes from __________.
a. the Maori term for “non-Maori,” or person of European descent
b. the Maori term for “native” or “first”
c. the flightless bird native to the country
d. the Chinese gooseberry, called kiwifruit in New Zealand
Answer: C “The flightless bird native to the country”
Explanation:
None of the other answers make sense and I also took the quiz and got this question right.
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:
some cofactors participating in reactions of the citric acid cycle are given. identify the position or positions each cofactor has in the cycle by selecting the appropriate letter or letters designating that position in the cycle diagram.
The cofactor and the appropriate letter or letters showing the position in the cycle diagram are:
NADH+H+ - BDJFADH2- HGTP - FWhat is a cofactor?A cofactor is known to be a kind of chemical compound that is said to be non-proteinous in nature. It is also known to be a metallic ion that is often needed in any reaction as a kind of catalyst in that chemical reaction.
Note that the Cofactors is often seen as the "helper molecules" that boast biochemical transformations and as such the letters that show the position in the cycle diagram are the ones given above.
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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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Read the following sentence.
Pliny once wrote that Phoenician sailors who cooked on blocks of natron (soda) on a beach discovered glass accidentally.
Is the underlined phrase essential (restrictive) or nonessential (nonrestrictive)? Explain your reasoning
Answer:
The underlined phrase is essential. It isn't just any group of Phoenician sailors who discovered glass, nor is it that Phoenician sailors in general discovered it; the sentence refers to a particular group of sailors that used blocks of natron to cook on the beach.
Explanation:
source…Quizlet
I hope this helps
Have an AMAZING day. :)
Lesson 16 solve problems with equations answer key
Based on the calculations, the value of x and y in this equation are both equal to 5.
What is a system of linear equations?A system of linear equations can be defined as an algebraic equation of the first order that has two (2) variables with each of its term having an exponent of one (1).
Given the following data:
x + y = 10 .....equation 1.
x = 5. .....equation 2.
How to evaluate an equation.In order to evaluate the given mathematical equation, we would substitute equation 2 into equation 1 as follows:
[tex]5+y=10\\\\y=10-5[/tex]
y = 5.
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Based on the equation and the titration results what is the concentration of the h2so4(aq)
Answer:
The value is going to be 0.96 M. You would need to refer to the chart so that you can solve the question properly. To solve for the value of this, you need to know the value of each mole. The equation is going to be MaVa=MbVb x (12). You would need to change the concepts to (0.16)(36.0) x = 0.48.
15.5 angle relationships in circles evaluate homework and practice
The measure of angle MPK is acute angle between the intersecting lines
The measure of MPK is 86 degrees
How to determine the measure of the angle?To calculate the angle measure of MPK, we use the following equation:
MPK = 0.5 * (MK + LN)
From the figure, we have:
MK = 61
LN = 111
So, we have:
MPK = 0.5 * (61 + 111)
Evaluate the product
MPK = 86
Hence, the measure of MPK is 86 degrees
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based on the information provided in figure 1 and figure 2, which of the following best predicts the effects of a mutation in the promoter of the tyr gene that prevents it from being transcribed?
Based on the information provided in figure 1 and figure 2, Skin pigmentation will not be altered, leading to a negative selection pressure.
What is the figure about?The Figure shows the making of α-MSH in keratinocytes as a result of UV radiation.
The option that effects of a mutation in the promoter of the tyr gene that prevents it from being transcribed is that Skin pigmentation will not be altered, leading to a negative selection pressure.
Conclusively, in Figure 1, TYRTYR is needed for the steps in the melanin synthesis pathway but when it was not shown properly, it hinders melanocytes from synthesizing melanin even if there was an exposure to UVUV radiation. This would therefore leads to a negative selection pressure.
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