If 45 ml of water are added to 250 ml of a 0. 75 m k2so4 solution, what will the molarity of the diluted solution be?
Answer:
0.64M
Explanation:
graphically producer surplus is the area above the curve and below the equilibrium price from to the quantity traded.
Graphically, consumer surplus is the area below the demand curve and above the equilibrium price, from zero to the quantity traded.
What is producer surplus?This is known to be the difference that is said to exist between the price producers often gets from the sales of good or a service and the lowest price they are said to be willing and able to take.
Note that in graphical depiction of consumer surplus, it is found to be the area that is below the demand curve and above the equilibrium price, that is from zero to the quantity traded.
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You cook a turkey until the internal temperature reaches 180°f. the turkey is placed on the table until the internal temperature reaches 100°f, and it can be carved. when the room temperature is 72°f, the cooling rate of the turkey is $r=0.067$ . how long do you have to wait until you can carve the turkey? use newton's law of cooling to solve the problem. round your answer to the nearest whole minute.
The newton's law of cooling is used to determine the waiting time
You will have to wait for 20 minutes to carve the turkey
How to determine the time?By newton's law of cooling, we have:
[tex]T = (T_o - T_R) e^{-rt} + T_R[/tex]
From the question, we have:
T = 100°f ---- The serving temperature
To = 180°f --- The initial temperature
TR = 72°f ----- the room temperature
r = 0.067 -- the cooling rate
So, we have:
[tex]T = (T_o - T_R) e^{-rt} + T_R[/tex]
[tex]100 = (180 - 72) e^{-0.067t} + 72[/tex]
Subtract 72 from both sides
[tex](180 - 72) e^{-0.067t} = 28[/tex]
Evaluate the difference
[tex]108 e^{-0.067t} = 28[/tex]
Divide both sides by 108
[tex]e^{-0.067t} = 0.25923[/tex]
Take the natural logarithm of both sides
[tex]-0.067t = -1.3500[/tex]
Divide both sides by -0.067
[tex]t = 20.149[/tex]
Approximate
[tex]t = 20[/tex]
Hence, you will have to wait for 20 minutes to carve the turkey
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You are high up in the mountains and boil water to make some tea. however, when you drink your tea, it is not as hot as it should be. you try again and again, but the water is just not hot enough to make a hot cup of tea. which is the best explanation for this result?
Answer:
temperatures are all low on topbof the mountains
Answer:the cold
Explanation:mountains have this thing called an ice cap at the top
Find the lateral surface area of the rectangular prism in centimeters. A) 96 cm2 b) 108 cm2 c) 126 cm2 d) 142 cm2
Option C) 120cm² is the correct answer.
Hence, the lateral surface area of the rectangular prism in 120cm².
This question is incomplete, the complete question is;
Find the lateral surface area of the rectangular prism in centimeters.
L=4, W=3, H=9
A) 96 cm2 b) 108 cm2 c) 126 cm2 d) 142 cm2.
Rectangular prismA rectangular prism or Cuboid is simply a three dimensional solid shape with six faces that are rectangles.
The lateral surface area of the rectangular prism is the perimeter of the base multiply by the height of the prism. It is expressed as:
[tex]LSA = 2 ( l + w ) h[/tex]
To determine the lateral surface area of the rectangular prism, we substitute our given values into the above expression.
[tex]L.S.A = 2(l+w)h\\\\L.S.A = 2( 4cm + 3cm )9cm\\\\L.S.A = 2( 7cm)9cm\\\\L.S.A = 126cm^2[/tex]
Option C) 120cm² is the correct answer.
Hence, the lateral surface area of the rectangular prism in 120cm².
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Each month, elizabeth budgets $760 for fixed expenses, $620 for living expenses, and $80 for annual expenses. her annual net income is $32,580. which sentence best describes her monthly budget?
Answer:
760
Explanation:
it'd the budget that's what it says
pasta with garlicky spinach and buttered pistachios
according to carl jung, which of the following best served the goal of self-realization?
A $900 sound system decreases in value by 9 each year
Find the value of x given the area of the quadrilateral
Answer:
Wait. where is the exact question?
Based on paragraph 3 ("in a different. . . Augustine"), what can most reasonably be inferred about augustine?
The purpose of making an inference is so that one is able to elicit a conclusion that depends on facts provided based on reasoning.
What is an Inference?Inferences are helpful because they help to uncover hidden messages in a text or literature. Another way to refer to inference is "to read between the lines"
When a person arrives at a conclusion by adding one or more logical facts together, they are said to have made an inference.
Do note that the text (paragraph) referred to is unavailable hence the general answer.
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12.2 geometric sequences evaluate homework and practice answers
Geometric Series is known to be the exact sum of the terms of a geometric sequence. Its practice work example is given below:
Find the stated term of Given of the Geometric sequence -3, -6, -12, -24 ...9th term.What is Geometric Means?This is known to be the terms that exist between two nonconsecutive terms that belongs to a geometric sequence.
The Method to used in the above question is Geometric sequence.
The Rule of geometric sequence is that f (n)arⁿ⁻¹
Where A = the first term,
r = the common ratio
Therefore, r = -6 ÷ -3 = 2n
f (n) = -3. 2ⁿ⁻¹
Then you change the term n with 9
f (9) = 3.2⁹⁻¹
= -768
Therefore, the the stated term is 768.
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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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Which fact does not support the claim the social and economic differences between the north and the south caused the american civil war?
Answer: seven states seceded from the Union.
Explanation:
Antigens are foreign proteins that invade the systems of organisms. Vaccines function by stimulating an organism’s immune system to develop antibodies against a particular antigen. Developing a vaccine involves producing an antigen that can be introduced into the organism being vaccinated and which will trigger an immune response without causing the disease associated with the antigen. Certain strains of bacteria can be used to produce antigens used in vaccines
The process described above is about how vaccines are designed using antigens.
What are Vaccines?Vaccines may be defined as substances that are used to enhance or catalyze the creation of antibodies in the human body.
When injected in the host, Vaccines help to provide immunity against one or more diseases.
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Strains of bacteria can be used to produce antigens used in vaccines and are given to individuals during Vaccination.
What is Vaccination?This is the process by which an individual's immune system becomes fortified against an infectious agent.
The inactive strain of the infectious agent is usually injected to elicit an immune response when future infection takes place.
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Conjecture of which fibonacci numbers are divisible by 3
Schrank company is trying to decide how many units of merchandise to order each month. company policy is to have 20% of the next month's sales in inventory at the end of each month. projected sales for august, september, and october are 30,000 units, 20,000 units, and 40,000 units, respectively. how many units must be purchased in september?
Assuming the company decide how many units of merchandise to order each month. The number of units that mus be purchased in september is 24,000 units.
Number of unitsUsing this fomula
Number of units=September sales units-Beginning inventory +Desired ending inventory
Hence:
September sales units 20,000
Beginning inventory (4,000)
(20,000 x 0.20)
Desired ending inventory 8,000
(40,000×0.20)
Number of units 24,000
(20,000-4,000+8,000)
Inconclusion the number of units that mus be purchased in september is 24,000 units.
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Write each number in standard notation. see example. example 2.7 × 10− 6
The surface tension of water in air is approximately 0.00518 lbf/ft. if the atmospheric pressure is 14.7psia, what is the pressure inside a droplet 0.01" in diameter?
Based on the calculations, the pressure inside this droplet is equal to 2,909.35 kPa.
Given the following data:
Surface tension = 0.00518 lbf/ft to N/m = 0.00702 N/m.Atmospheric pressure = 14.7psia to kPa = 101.35 kPa.Diameter = 0.01 mm to m = 0.00001 m.Radius, r = [tex]\frac{diamter}{2} =\frac{0.0001}{2}[/tex] = 0.000005 m.
How to determine the pressure inside a droplet.For a droplet with only one surface, its pressure is given by this formula:
[tex]P_1-P_2=\frac{2 \tau}{r} \\\\P_1=\frac{2 \tau}{r}+P_2[/tex]
Substituting the given parameters into the formula, we have;
[tex]P_1=\frac{2 \times 0.00702}{0.000005} + 101.35\\\\P_1=2808+ 101.35[/tex]
Inside pressure = 2,909.35 kPa.
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Currently, the rooftop solar panels produce only a fraction of the electricity used in the buildings on which they are installed. which of following strategies would best combat the problem of insufficient electricity generation from the rooftop solar panels?
The strategies that would best combat the problem is: Installing active solar energy on unshaded rooftop space and placing them to face south.
What is solar panel?Solar panel can be defined as a panel that help to provide electricity by making use of sunlight as energy.
Based on the given scenario the best strategies to overcome the problem is to install the active solar energy systems on unshaded rooftop space and to as well position the solar energy to face south.
Inconclusion install active solar energy on unshaded rooftop space.
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You are given some ferrous iodide, fei2 , and are asked to extract the iron through electrolysis. what can be said about the merits of molten versus aqueous fei2 ?
It is impossible to extract or derive iron metal from the electrolysis of the aqueous solution provided. The option left is to carry out the electrolysis on the molten salt.
What is Electrolysis?
Electrolysis refers to the process of causing a chemical decomposition in a liquid or solution that contains ions by sending electric currents via such a solution.
Electrolysis is used primarily for:
Extraction (also known as electrowinning); orPurification (also known as electrorefining) of metals from their ore state.Learn more about Electrolysis at:
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Each of the following statements is arguably true of thermometers. Which of them is most helpful to keep in mind if you are conducting an experiment to measure the specific heat of a material?
The statement that is true of thermometers is; The temperature reported by a thermometer is never precisely the same as its surroundings.
What is the function of thermometer in an experiment?In the experiment to determine the specific heat of a material, the theory will be one which explains that when a heat interchange takes place between two bodies that were having different temperatures at the beginning, the quantity of heat the warmer body looses is equal to that gained by the cooler body to reach the equilibrium temperature. This is true only if no heat is lost or gained from the surrounding.
Now, If heat is gained or lost from the surrounding environment, the temperature readings by the thermometer will be incorrect. The experimenter should therefore have in mind that for accurate results, the temperature recorded by the thermometer is similar to that of the surrounding at the beginning of the experiment and if it differs then note that heat is either gained or lost to the environment.
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Read this passage from when birds get flu and cows go mad! by john diconsiglio. hughes was assigned to find infected cow parts at meat processing plants in washington. he remembers the sad look on some owners’ faces when he flashed his badge. if there was a chance that any of their meat might have mad cow, they’d have to throw it all away. "the business they built from scratch was destroyed—through no fault of their own. and there was nothing they could do about it," hughes says. the tone in this passage most suggests that hughes is caring. dedicated. tense. worried.
The tone in the given passage about hughes infecting cow parts most suggests that hughes is; Caring
What is the Tone of the Passage?From the given passage, we see that hughes was assigned to find infected cow parts at meat processing plant.
Now, he noticed the sad faces of the cow owners and was deeply concerned by their sadness about how any of their meat might have mad cow.
In conclusion, we can say he was caring because of his deep concern about the hapinness of the cow owners.
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Answer:
A
Explanation:
caring
Very small incidents may lead to great achievements
Answer:
True
Explanation:
Follow the directions to convert the analog sound wave into a digital signal. the lines on the grid intersect at various points (x, y). for each whole-number value of x, find the intersection point that is closest to the wave. draw a small circle on that point, and record its y-value. the circles for the x-values 0 through 3 are already done for you. draw circles for the x-values 4 through 18. in a textbox, write down all 19 y-values obtained by sampling the wave.
In this exercise we have to observe the axes of the graph to associate the values of X with those of Y that correspond to 0, 5, 5, -3, -5, -3, 2, 0, 0, -1, -2, 1, 1, -1, -1, -2, 2, 3, -1.
How to calculate the Cartesian plane?Just draw two lines: one of them vertical, starting from the point until it finds the x axis; another horizontal, starting from the point until it meets the y-axis.
Then plotting the value of X on the graph we find the following for each value of X to Y:
X= 0 ; Y= 0; X= 1 ; Y= 5; X= 2 ; Y= 5;X= 3 ; Y= -3;X= 4 ; Y= -5;X= 5 ; Y= -3;X= 6 ; Y= 2; X= 7 ; Y= 0; X= 8 ; Y= 0; X= 9 ; Y= -1; X= 10 ; Y= -2; X= 11 ; Y= 1; X= 12 ; Y= 1; X= 13 ; Y= -1;X= 14 ; Y= -1; X= 15 ; Y= -2; X= 16 ; Y= 2; X= 17 ; Y= 3; X= 18 ; Y= -1;See more about coordinates at brainly.com/question/23450276
in the small intestine, which of the following enzymes breaks down oligosaccharides?
in the small intestine, the enzymes that breaks down oligosaccharides is glucoamylase.
What enzymes break down oligosaccharides ?The enzymes are known to be dextrinase and glucoamylase. They help to break down oligosaccharides.
They are known to be brush border enzymes and they consist of:
MaltaseSucraseLactaseNote that Lactase is not found in most adult humans and when compared to most poly-saccharides, it cannot be digested in the small intestine.
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The base of a jewelry box is shaped like a regular hexagon. what is the measure of each interior angle of the jewelry box base?
120 degrees is the answer too, the base of a jewelry box is shaped like a regular.
What is Interior angle?Inferior angle of scapula fractures (IAS) are uncommon injuries caused by the periscapular shoulder muscles avulsing the inferior scapula tip.
Since only case reports are now available to inform management, the purpose of this study was to look into the processes of damage, investigations, and treatment outcomes.
Computer tomography (CT) pictures were used to find patients with an IAS fracture. To acquire information regarding the injury, treatment, and outcome, case notes were examined and patients were contacted.
Therefore, 120 degrees is the answer too, the base of a jewelry box is shaped like a regular.
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Envision mathematics common core volume 2 answer key grade 6
Envision math common core can be used to analyze and solve linear equations.
What is Envision math?Envision math common core can be defined as a mathematics curriculum that are designed and developed for grades K-5 and K-6. Also, it was specifically designed to combine both problem-based questions and visual learning together.
This ultimately implies that, envision math common core can be used in the following ways:
To analyze and solve linear equations.To model relationships between problems.To investigate bivariate data.Read more on linear equations here: brainly.com/question/13170908
The dietary guidelines for americans recommend that you
Answer:
Follow a healthy eating pattern across the lifespan. Focus on variety, nutrient density, and amount. Limit calories from added sugars and saturated fats and reduce sodium intake. Shift to healthier food and beverage choices. Support healthy eating patterns for all.
Explanation:
There are many factors that contribute towards one's personal values and views toward nature. based on the information from this lesson, identify one or two factor(s) important to your own views on nature and natural landscapes.
The contributing factors to the personal values I have towards nature are:
Its beautyHow unique it appearsIts complex natureWhat is nature?This is a term that is used to refer to the physical world that we live in as well as all the components that exists in it.
By the word nature, it refers to the plants, animals, environment and other features in the environment.
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