The final temperature of the water after addition to the heated water at 20° C in degree kelvins' is calculated as; 295.23 K
What is the Final Temperature?We are given;
mass of the initial water; m₁ = 2.5 kg
specific heat capacity of water; c = 4189 J/kg.K
initial temperature of water; T₁ = 13.5 ⁰C
final temperature of the water; T₂ = 22.5 ⁰C
mass of the final water; m₂ = 0.5 kg
initial temperature of the final water; T₁,i = 20 ⁰C
If the system is isolated, then we have;
m₁*c*(T_f - T₂) + m₂*c*(T_f - T₁,i) = 0
c will cancel out to give;
[2.5T_f - (2.5*22.5)] + [0.5T_f - (0.5*20)] = 0
2.5T_f - 56.25 + 0.5T_f - 10 = 0
3T_f = 66.25
T_f = 66.25/3
T_f = 22.08°C = 295.23 K
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which of the stream types had a statistically lower macroscopic invertebrate species diversity than the seasonal streams?
Intermittent streams are streams that exhibit lower macroscopic invertebrate species diversity than seasonal streams.
What is species diversity?Species diversity, also called biodiversity, refers to the richness of species living in a given community.
A community such as, for example, a stream, is composed of all populations living in a geographic region and thus forming part of an ecosystem.
Species diversity is a fundamental issue for the overall health and homeostasis of the ecosystem.
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In the interview, dr. dowell mentions that we live in a "small world." the video explains that disease can spread in a matter of hours when people travel by airplane. how does the video connect to what dr. dowell says? the video discusses disease but avoids how diseases spread. the video gives the same information as the interview about the spread of disease. the video gives less information than the interview about how easily disease can spread. the video gives more specific information about how easily diseases can spread.
Answer:
D
Explanation:
edge 2022
it's right all you have to do is trust me
Answer: D or The video gives more specific information about how easily diseases can spread.
Explanation: got it on edge 2022
True or false in a parallelogram any two opposite sides are congruent
Answer:
True
Explanation:
Among the properties of a parallelogram is that opposite sides are congruent.
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Glencoe math course 1 volume 1 answer key 6th grade pdf
Since this cylinder has a radius of 2 inch, its volume is equal to 25.12 cubic inches.
Given the following data:
Radius of cylinder = 2 inch.Height of can = 2 inch.[tex]\pi =3.14[/tex]What is volume?In Mathematics, volume can be defined as a scalar quantity that is used to express the amount of three-dimensional (3D) space that is occupied by an object such as a cylindrical can, or enclosed by a boundary.
How to calculate the volume.Mathematically, the volume of a cylinder is given by this formula:
[tex]V = \pi r^2h[/tex]
Where:
h is the height.r is the radius.Substituting the given parameters into the formula, we have;
[tex]V = 3.14 \times 2^2 \times 2\\\\V=3.14 \times 4\times 2\\\\V=6.28 \times 4[/tex]
V = 25.12 cubic inches.
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What effects can apostrophe have on a poem? choose four answers. It gives the speaker a voice. It connects the reader to the speaker’s message. It gives the poem a detached effect. It makes an imagined addressee feel present. It gives the poem a personalized effect
Th influence of apostrophe's as used on the poem is:
It gives the speaker a voice.It connects the reader to the speaker’s message.It makes an imagined addressee feel present.It gives the poem a personalized effect.What effects can an apostrophe give on a poem?An apostrophe is known to be often used to highlight the vital reasons of the the main idea or object.
It is often used to adds drama, bring out emotions as a result of jubilation to sorrow and it is also used to evoke something not living.
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Answer:
A, B, D, E
Explanation:
A - it gives the speaker a voice
B - it connects the reader to the speakers message
D - it makes an imagined addressee feel present
E - it gives the poem a personalized effect
>.<
During the halftime performance for a football game, the color guard is planning a new formation in which seven members stand around a central point and stretch their flag to the person immediately to their left. 10. what is the measure of each exterior angle of the formation?
There are different kinds of angles. The measure of each exterior angle of the formation is 51.4.
What is a exterior angle in math?The term exterior angle is known to be the angle that is found between a side of a polygon and that of an extended adjacent side.
The shape of the halftime is regular heptagon.
Note that a regular heptagon has 7 congruent sides and 7 congruent interior angles.
So the exterior angles are said to be congruent, based on the fact that angles supplementary to congruent angles are regarded as congruent.
So Let take n as the measure of each exterior angle.
7n = 360
n= 360/n
To Solve for n =51.4
Therefore, The measure of each exterior angle of the formation is 51.4.
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Chord ac intersects chord bd at point p in circle z. ap=4 cm bp=5 cm pc=8 cm what is pd? enter your answer as a decimal in the box.
For this question, PD = 6.4 cm
If a circle is circumscribed about a polygon, then the polygon is
A circle is circumscribed about a polygon if the polygon's vertices are on the circle. For triangles, the center of this circle is the circumcenter. A circle is inscribed a polygon if the sides of the polygon are tangential to the circle. For triangles, the center of this circle is the incenter.
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Magnesium chloride is a salt formed with ionic bonds
One economic reason for the general trend of migration from rural to urban areas is that —
help hurry please help me
Answer:
The answer is B
Explanation:
If any of the numbers do not have a line underneath then the inside of the circle should not be shaded. If it does have a line underneath then the whole circle should be shaded. Then you look at the direction it is going, look carefully.
The ability of an apple to change color when exposed to air is a
Answer:
chemical reaction
Explanation:
How was japan’s response to the great depression different from the response of european nations?
Unlike other European nations, Japan utilised monetary policies, exchange rate and expansionary fiscal to recover.
Japan's Response to the great depressionJapan achieved an early recovery from the Great Depression of the 1930s. Much of the success was attributed to veteran finance minister, Takahashi Korekiyo, who managed to effect the recovery by prescribing a combination of expansionary fiscal, exchange rate, and monetary policies.
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if an adult human suffered a traumatic injury, could their notochord be damaged?
Answer:
Yes; because the notochord is deep within the body only a severe injury could damage it.
Explanation:
How does hemingway's decision to end the story of the major returning to the hospital after his wife's death contribute to the story's impact?
The decision of hemingway's to end the story of the major returning to the hospital after his wife's death lead to:
It creates a sense of grief for the major not only for the loss of his wife but also the loss of his hand, ending the story on a tragic note.What is ending of a story implies?An ending is known to be the conclusion of a thing. In stories, it can be a sad or an happy ending.
Note that an ending also connote a time when a thing is about to finish or near its completion. The end of the story above produces a sense of grief for the major not only for the loss of his wife but also the loss of his hand, that is tragic story.
See options below
1. It hints that the major mourned for his lost wife only for a brief few days before returning to his routine at the hospital, ending the story on an uncaring note.
2. It emphasizes that the photographs are of no concern to the major because he doesn’t expect the machine to make much difference, ending the story on a doubtful note.
3. It suggests a sense of absurdity that the machine will revitalize the major’s hand to what is shown in the photographs, ending the story on a patronizing note.
4. It creates a sense of grief for the major not only for the loss of his wife but also the loss of his hand, ending the story on a tragic note.
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Which examples are possible environmental impacts of flooding select the two correct answers
Answer:- Groundwater recharge and pollution of water supply
Explanation:
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Groundwater recharge and pollution of water supply.
What is ground water reachge and how does is it affected ?The natural recharge of groundwater takes place by the precipitation that falls over the land and it infiltrates deep into the soil and gets deposited forming the groundwater.
This water is said to be freshwater as its filtered. The groundwater is impacted during the time of floods as the water gets contaminated and not suited for drinking.
Find out more information about the environmental impacts.
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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:
which of the following best predicts the results of a drought in the savanna research area with regards to community resilience to this environmental change?
A probable prediction is that the grazed area will recover faster from drought due to greater biodiversity.
What is biodiversity?Biodiversity refers to the variation (both phenotypic and genetic) present in a community and/or population.
Biodiversity is a fundamental issue for achieving ecosystem restoration after natural catastrophes.
In this case, drought is an environmental challenge that is more easily faced in presence of suitable levels of biodiversity.
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Express the interval as an inequality in the variable x. .
An experimenter is studying the effects of temperature, pressure, and type of catalyst on yield from a
certain chemical reaction. Three different temperatures, four different pressures, and five different catalysts
are under consideration.
a) If any particular experimental run involves the use of a single temperature, pressure, and
catalyst, how many experimental runs are possible?
b) How many experimental runs are there that involve use of the lowest temperature and two
lowest pressures?
c) Suppose that five different experimental runs are to be made on the first day of
experimentation. If the five are randomly selected from among all the possibilities, so that any
group of five has the same probability of selection, what is the probability that a different
catalyst is used on each run?
Find the percent of decrease from 69 songs to 37 songs. round to the nearest tenth of a percent if necessary.
Answer:
the correct answer is 46.38%
Explanation:
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The economy of newland is in short-run macroeconomic equilibrium. the current real output is $400 billion, and the full employment output is $500 billion. the marginal propensity to consume is 0.8.
a. The economy is experiencing a recessionary gap because the potential GDP is greater than the Real GDP.
bc. The minimum change required to shift the aggregate demand curve to close the output gap is 500 and 125.
Gross domestic producta. The economy is experiencing a recessionary gap because the potential gross domestic product is higher than the Real gross domestic product.
Potential GDP=500
Actual GDP=400
Potential GDP > Actual GDP
b. Minimum change
Multiplier= 1/(1 - MPC)
Multipl,ier= 1/(1 - 0.8)
Multiplier = 1/0.2
Multiplier= 5
Minimum change=(500-400)×5
Minimum change=500
c. Minimum change
Tax multiplier = MPC/(1 - MPC)
Tax multiplier= 0.8/(1 - 0.8)
Tax multiplier= 4
Minimum change=500/4
Minimum change=125
Inconclusion the economy is experiencing a recessionary gap because the potential GDP is greater than the Real GDP.
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How would someone use identity information to commit medical identity theft?
Answer: identity theft is usually associated with financial transactions, it also happens in the context of medical care. According to the Federal Trade Commission (FTC), medical identity theft occurs when someone uses another person’s name or insurance information to get medical treatment, prescription drugs or surgery. It also happens when dishonest people work-Ing in a medical setting use another person’s information to submit false bills to insurance companies.
9-5 skills practice solving quadratic equations by completing the square
An example of 9-5 practice question on quadratic equations by completing the square is 5x2–2x−9=0.
What are quadratic equation?This is known to be a type of algebraic expression that is based on the second degree in x. The quadratic equation often exist in a standard form such as ax2 + bx + c = 0.
To solve for 5x2–2x−9=0
Then you have to rearrange the equation into:
x2−(2/5)x−9/5=0
= x2−(2/5)x=9/5
= (x−(2/10))2−(2/5)2=9/5(here b = 2/5)
= (x−(2/10))2=46/25
Then you take the square root on both sides
= (x−(2/10))=±1.356
Therefore x=1.556 or say −1.156.
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to catalyze a biochemical reaction an enzyme typically
Answer:
Enzyme catalysis An enzyme catalyzes a biochemical reaction by binding a substrate at the active site.
Explanation:
The catayze is a biomedical reaction of an enzyme that typically binds the substance at the active site.
What is a biomedical reaction?Biomedical reaction is the transformation of one of the molecule into a different molecule that is located inside the cell.
These reactions are then medicated by enzymes and act like biological catalysts. They can alter the rate of the chemical reactions inside the cell.
Find out more information about the biochemical reaction.
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how far is the west side from the east side
Answer:
The distance between the East Coast and the West Coast of the United States ranges between 2,600 and 3,200 miles, depending on the route.
Explanation:
How far is West Coast to East Coast?
2,092 miles is the shortest distance from the East Coast to the West Coast. It would take you about a week or so to get there at 60 miles an hour.
What’s the distance between the east coast and West Coast?
The distance between the East Coast and the West Coast of the United States ranges between 2,600 and 3,200 miles, depending on the route.
Answer:
3,527 miles
Explanation:
The longest route covers approximately 3,527 miles and is referred to as Route 50
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In the morning the temperature starts out around 50
By the end of the day it has probably increased.
A hyperbola has vertices (±5, 0) and one focus (6, 0). what is the standard-form equation of the hyperbola?
Answer:
x²/25 - y²/11 = 1
Explanation:
The standard form equation of the hyperbola:
x² / a² - y² / b² = 1
a = 5,
a² = 25
c = 6
c² = a² + b²
36 = 25 + b²
b² = 36 - 25
b² = 11
Consider the net of a triangular prism where each unit on the coordinate plane represents four feet. If a sheet of plywood measures 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the prism?
Answer:
Explanation:
2 sheets of plywood will be needed.
Step-by-step explanation:
See the attached diagram.
Each three square plywood has area 1 units by 3 units = 4 feet by 12 feet = 48 feet square. {Since each unit on the coordinate plane represents four feet}
Now, the two triangular plywood has area half of a unit square area.
So, two triangular plywood has total area = 1 unit by 1 unit = 4 feet by 4 feet = 16 feet square.
Therefore, the total area of plywood required to make the triangular prism is (48 + 16) = 64 feet square.
Now, if a sheet of plywood measures 4 ft by 8 ft i.e. 32 feet square, then the carpenter will need such sheets of plywood. (Answer)
Name the geometric terms modeled by each object a telephone pole
Answer:
The geometric item that models each object is named a telephone pole is a line.
Read the article titled "comparative advantage. " explain what comparative advantage is and how it relates to opportunity cost. How do these principles explain why americans have exported customer service operations to india?
Comparative advantage is a guiding principle in how countries should trade with each other.
What is Comparative advantage?Comparative advantage is an economic theory with the idea that countries should produce goods that they incur less opportunity cost in.
It also means that countries should buy goods that they have a higher opportunity cost producing.
Now, the U.S. has a higher opportunity cost than India when it comes to customer service operations and as a result, by the principles of comparative advantage, India should engage in customer service instead of the U.S.
In conclusion, Indians incur less opportunity cost in customer service and so the U.S. exports it there.
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