Which of the following statements best explains how an electron microscope generates a high-resolution image?.
Answer: TEM uses similar principles to conventional light microscopy, but electrons are transmitted through a sample to produce an image, rather than light. This technique is a very reliable way to produce high-resolution images.
Explanation:
A deal is a deal, so here is a good one, let's see who gets it right. I had $10. 0. My mom gives me $30. 00, my dad gave me $30. 0. My aunt and uncle give $100. 0. I had another $10. 0. How much money did i have? the right answer will be deleted & you will be asked to repost the question on your page.
Answer:
the answer to your question is 180
Los verbos recíprocos solamente funcionan cuando hay por lo menos _____ personas que hacen la cosa a la otra.
Answer:
2
Explanation:
Answer: 2
Explanation:
just took test
A vector makes an angle, θ, with the horizontal. The horizontal and vertical components of the vector will be equal in magnitude if θ is.
A vector has horizontal and vertical components.
The value of [tex]\mathbf{\theta }[/tex] is 45 degrees, when the horizontal and vertical components are equal
Let the magnitude of the vector be H.
So, the horizontal (h) and the vertical components (v) of the vector would be:
[tex]\mathbf{v = Hcos(\theta)}[/tex] --- vertical
[tex]\mathbf{h = Hsin(\theta)}[/tex]
Equate both expressions
[tex]\mathbf{h = v}[/tex]
Substitute values for h and v
[tex]\mathbf{Hcos(\theta) = Hsin(\theta)}[/tex]
Divide both sides by H
[tex]\mathbf{cos(\theta) = sin(\theta)}[/tex]
When [tex]\mathbf{cos(\theta) = sin(\alpha)}[/tex], then
[tex]\mathbf{\theta + \alpha = 90^o}[/tex]
So, we have:
[tex]\mathbf{\theta + \theta = 90^o}[/tex]
[tex]\mathbf{2\theta = 90^o}[/tex]
Divide both sides by 2
[tex]\mathbf{\theta = 45^o}[/tex]
Hence, the value of [tex]\mathbf{\theta }[/tex] is 45 degrees
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Which letter shows the type of wave that can be seen by humans.
Triangle J K L is shown. Point N is the midpoint of side J L and point M is the midpoint of side K L. The length of J K is 19. 6 meters. The lengths of J N and N L are 7. 4 meters. The lengths of K M and M L are 10. 7 meters. What is the distance between points M and N? meters.
Answer:
9.8
Explanation:
just did assignment
One advantage of participatory budgeting is that it allows subordinates to perform the budgeting function, thus freeing up upper management for more important tasks.
Answer:
Answer is true
Explanation:
Which expression is equivalent to (StartFraction (2 a Superscript negative 3 Baseline b Superscript 4 Baseline) squared Over (3 a Superscript 5 Baseline b) Superscript negative 2 Baseline EndFraction) Superscript negative 1? Assume mc026-2. Jpg.
Answer:
1
Explanation:
The expression that is equivalent to [(2a⁻³b⁴)²/(3a⁵b)⁻²]⁻¹ is;
1/(36a⁴b¹⁰)
The given expression is;[(2a⁻³b⁴)²/(3a⁵b)⁻²]⁻¹
Rewriting this equation gives;[(2a⁻³b⁴)² × (3a⁵b)²]⁻¹
Let us simplify (2a⁻³b⁴)² to get;
4b⁸/a⁶
Similarly for (3a⁵b)²;
⇒ 9a¹⁰b²
Thus, we now have;
[(4b⁸/a⁶) × 9a¹⁰b²]⁻¹
From laws of indices, we know that; x⁵/x³ = x⁽⁵ ⁻ ³⁾ = x²Thus; a¹⁰/a⁶ = a⁴
Similarly b⁸ × b² = b⁽⁸ ⁺ ²⁾ = b¹⁰
Thus, we now have;[(4b⁸/a⁶) × 9a¹⁰b²]⁻¹ = (36a⁴b¹⁰)⁻¹
Finally, we now have;
(36a⁴b¹⁰)⁻¹ = 1/(36a⁴b¹⁰)
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The tiger's whisker questions and answers.
Answer:
Explanation:
The folktale "The Tiger´s Whisker" originates from Korea, and it is used mostly as a child´s tale. It narrates the story of Yun Ok, whose husband has changed drastically from a loving, and gentle man, to an irrascible one, thanks to the wars. In desperation, Yun Ok, goes to a hermit and asks for a potion. The man tells her that in order to do so, she must bring a whisker from a live tiger. Yun Ok does as she is told, and patiently gains the trust of a tiger, and gets the needed whisker. In the end, she finds out that the lesson the hermit wanted her to learn was that to regain her husband, she needed to apply the same technique she used on the tiger, and not a potion. Given this background, the answers would be thus:
1. A folktale is defined precisely as: A story that is often passed along by word of mouth from one generation to another. This is the correct answer.
2. In this question, the answer is: Her husband has become very distant since he returned from war. This is what is narrated in the story as the reason for Yun Ok´s husband´s estrangement.
3. The correct answer here is: He laughs at Yun Ok´s idea because he thinks she is foolish to believe that solving the problem with her husband could be so simple. Though not directly stated, the hermit does laugh in a way when he says to Yun Ok that healing her husband with a potion is not like taking care of an ear infection. And he makes her feel somewhat foolish for her request. But she insists and he gives in.
4. The answer to this question is: She decides that reconnecting with her husband is worth the risk. This is stated in the story when Yun, although afraid, still continues persistently to go after the tiger, always keeping in mind that all is for the benefit of herself and her husband.
5. The answer here is: She learns that through patience, she can win her husband´s trust and heart like she earned the trust of the tiger. This is the lesson she learns when the hermit burns the whisker and makes her reflect on how she was able to get it from a wild tiger, saying that a man cannot be fiercer, or more difficult, than a tiger.
6. The answer here is: She is patient and demonstrates perseverance by spending six long months, slowly getting the tiger to trust her before she plucks out his whisker. This is exactly what she does in the story. She spends every day of those six months, carefully gaining the tiger´s trust, until he allows her near, and then allows her to take his whisker.
Researchers are investigating the effect of ph level in water on the breeding habits of the moon jellyfish. As part of a laboratory experiment, they will randomly assign one of three treatments, low ph , medium ph , or high ph , to the water in the tanks that hold the jellyfish.
In this experiment randomization tends to minimize the effects of uncontrolled variables, such as water temperature, so that such factors are not confounded with the treatment effects.
In an experiment, variables are carefully controlled in order to ensure the reliability of the results. Usually, treatments are assigned randomly to experimental units. Randomization refers to the assignment of experimental units to groups by chance.
Randomization is important in this experiment because it tends to minimize the effects of uncontrolled variables, such as water temperature, so that such factors are not confounded with the treatment effects.
Missing parts;
Which of the following is the best reason for the random assignment of a treatment level to an experimental unit?
A. Randomization tends to minimize the effects of uncontrolled variables, such as water temperature, so that such factors are not confounded with the treatment effects.
B. Randomization will make up for improper experimental design, data collection, and analysis.
C. Randomization makes the analysis easier since the data can be entered into the computer in any order.
D. Randomization is required by statistical consultants before they will analyze the experiment.
E. Randomization means that the experiment would not need to be replicated
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According to this passage, what is the main duty of the Secretary at War? to stay informed about the military and its supplies to command the US Army in battle if the president is unable to to fight any enemy Congress chooses to examine the relationship of the United States to other countries.
Answer:
A
Explanation:
100% on edge
Answer:
it is A
Explanation:
Guy above me is right
How many moles are represented by 12. 33 g of carbon dioxide?.
Explanation:
formula:
mass - moles = mass given ÷ molar mass
R.M.M of CO2 = 32 + 6 = 38
Molar mass of CO 2 = 38g (recall that r.m.m = molar mass)
38g of CO2 will produce 1 mole
therefore 12.33g will produce:
12.33÷38g (recall formula above)
answer: 0.324 moles
Using the equations 2 sr(s) + o₂ (g) → 2 sro (s) ∆h° = -1184 kj/mol co₂ (g) → c (s) + o₂ (g) ∆h° = 394 kj/mol determine the molar enthalpy (in kj/mol) for the reaction c(s) + 2 sro(s) → co₂ (g) + 2 sr(s).
Considering the Hess's Law, the enthalpy change for the reaction is 790 kJ/mol.
Hess's Law indicates that the enthalpy change in a chemical reaction is the sum of the ∆H of each stage of the reaction will give us a value equal to the ∆H of the reaction when it occurs in a single stage.
In this case you want to calculate the enthalpy change of:
C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s)
You know the following reactions, with their corresponding enthalpies:
Equation 1: 2 Sr (s) + O₂ (g) → 2 SrO (s) ∆H° = -1184 kJ/mol
Equation 2: CO₂ (g) → C (s) + O₂ (g) ∆H° = 394 kJ/mol
First stepIn this case, first, to obtain the enthalpy of the desired chemical reaction you need 1 mole of C (s) on reactant side and it is present in second equation. But since this equation has 1 mole of C (s) on the product side, it is necessary to locate this on the reactant side (invert the reaction). And when an equation is inverted, the sign of ΔH also changes.
Second stepNow, 2 moles of SrO (s) must be a reactant and is present in the first equation. Since this equation has 2 moles of Sr0 (s) on the product side, it is necessary to locate the O on the reactant side (invert the reaction) and the sign of ΔH changes.
SummaryIn summary, you know that two equations with their corresponding enthalpies are:
Equation 1: 2 SrO (s) → 2 Sr (s) + O₂ (g) ∆H° = 1184 kJ/mol
Equation 2: C (s) + O₂ (g) → CO₂ (g) ∆H° = -394 kJ/mol
Adding or canceling the reactants and products as appropriate, and adding the enthalpies algebraically, you obtain:
C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s) ΔH= 790 kJ/mol
Finally, the enthalpy change for the reaction is 790 kJ/mol.
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Answer:
to rasie the money
Explanation:
just took the test
1.B to raise the money
2.A algunas
3.A cuidar a
4. False
5.D en el zoologico
(all answers to test)
When a normal fault occurs, rocks will ___________. Question 13 options: push together not move fly up in the air spread out.
Answer:
A normal fault is cause by a plates pulling away from each other, resulting in one side slipping down.
Explanation:
A biography usually includes the main events in a person’s life and.
Answer:
A.an explanation usually includes the main events were not important
B.an explanation of the way those experience influenced that person
C.a description of the people who wanted to imitate that person
D.a description of why the author chose that person as a subject
Explanation:
My reflection in arts grade 7.
Answer:
This is an incorrect question. Please specifiy the term "reflection" and "art 7" thank you...
Explanation:
What is a common element to many Garafuna treats and foods? meat corn coconut.
Answer:
The answer is "Coconut"
Explanation:
Have a great day!
The common element to many Garifuna treats and foods is coconut. The correct option is c.
What is Garifuna treat?Coconut is a common ingredient in Garifuna food, along with other fundamental components like roots and tubers, including yams and sweet and bitter yucca, as well as bananas and sweet potatoes, among others.
Additionally, coconut is a common ingredient in many of the main courses, snacks, and desserts. This essential component is widespread throughout the Caribbean Sea region.
This style of characteristic food, which is rich in combinations and variants, is a result of the customs of the Garifuna people's forefathers, who were primarily indigenous African, Carib, and Arawak people.
Therefore, the correct option is c, coconut.
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Use the drop-down menus and your knowledge of suffixes to choose the correct word for each sentence. The searched for artifacts in a field. During the civil war, the country found itself in a state of near. He was when he learned that the director had given the role to another actor.
Answer:
Explanation:
1-archaeologist
2-anarchy
3-furious
yw :)
He learned that the director had given the role to another actor archaeologist.
What is Civil war?
The American Civil War, commonly referred to by other names, lasted from April 12, 1861, until May 26, 1865. The Union[f] ("the North") and the Confederacy ("the South"), the latter of which was made up of seceding states, engaged in combat.
The conflict over whether to allow slavery to spread into the western regions, creating more slave states, or to forbid it from doing so, which was widely believed to put slavery on the path to eventual extinction, was the main driver of the war.
The election of Abraham Lincoln as president of the United States in 1860 ended years of political contention over slavery because he opposed its spread into the country's western territories.
Therefore, He learned that the director had given the role to another actor archaeologist.
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The elevation of mt everest is 29028 feet.
Work out the size of angle x
Angles
50
120
Answer:
x = 70°
The external angle of a triangle is equal to the sum of the 2 opposite interior angles.
120° is an external angle of the triangle, thus
x + 50 = 120 ( subtract 50 from both sides )
x = 70
According to the beginning of wisdom which of the following is not consistent with the old testament.
Answer:
I don't know answer what is
Circle H is inscribed with quadrilateral D E F G. Angle E is 123 degrees. The measure of arc D E is 73 degrees. What is the measure of arc EF in circle H? 41° 50° 114° 173°.
Answer: 41 degrees
Explanation:
I got it right
Choose the best Spanish word to complete the sentence. Alan y Enrique __________ amigos. Es están son está.
Answer:
Son
Explanation:
Just got 100%, but further explanation: Es and esta are both easy to rule out, as neither of them refers to "they" (Alan y Enrique), and estan does not work because of the weird rules. Tbh I feel like you just have to memorize them except in some cases where one just clearly makes more sense than the other.
Answer: Pick answer C: "son"
Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a smoke detector (initially containing 5. 00 µg of am) that has been used for one year if the half-life is 433 years.
0.008 μg of americium-241 was consumed in a smoke detector
The half life of a substance is:
[tex]N=N_o(\frac{1}{2} )^\frac{t}{t_\frac{1}{2} } \\\\Where\ N\ is\ the \ amount \ of\ substance\ remaining\ after\ t\ years,\\N_o\ is\ the\ original\ amount, t_\frac{1}{2} \ is\ half\ life.\\\\\\Given\ N_o=5\ \mu g,t=1\ year,t_\frac{1}{2} =433\ years. Hence:\\\\N=5*10^{-6}(\frac{1}{2} )^\frac{1}{433} =4.992\ \mu g[/tex]
The amount consumed = 5 - 4.992 = 0.008 μg
0.008 μg of americium-241 was consumed in a smoke detector.
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Consider the equilibrium describing the endothermic dissolution of a solid in water. Z n ( o h ) 2 ( s ) − ⇀ ↽ − z n 2 + ( a q ) + 2 o h − ( a q ) if you have a saturated solution at equilibrium, what changes could you make to increase the solubility of the compound?.
To drive this equilibrium in the forward direction, for a saturated solution, the temperature of the system must be increased.
We have been told that the reaction; Zn(OH)2 ( s ) ⇄ Zn2+(aq) + 2OH − (aq), is an endothermic reaction. Recall that in an endothermic reaction, energy is absorbed and the energy of the products is greater than that of the reactants.
In order to drive this equilibrium in the forward direction, for a saturated solution, we can Increase the temperature of the solution. More Zn(OH)2 will dissolve in the solution.
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How does a phase change from solid to liquid occur in a substance.
Answer:
As heat is added to solid water, the temperature increases until it reaches 0 °C, the melting point. At this point, the phase change, added heat goes into changing the state from a solid to liquid. Only when this phase change is complete, the temperature can increase .
Solid → Liquid: Melting or fusion
Solid → Gas: Sublimation
Gas → Liquid: Condensation
Explanation:
Check all statements that are correct about the nervous system control of blood flow.
The human body is made up of a nervous system. The statements that are correct about the nervous system control of blood flow are;
B. A decrease in vasomotor tone causes blood vessels to dilate and blood pressure to decrease.
C. Nervous control of blood vessels causes blood to be shunted from one large area of the body to another.
D. In skeletal and cardiac muscle tissue, epinephrine and norepinephrine released by the sympathetic nervous system cause the blood vessels to dilate, increasing blood flow.
Nervous control of the circulation is said to be of a more global functions such as they help in resupply blood flow to different areas of the body, regulating the pumping activity of the heart, and giving quick control of blood pressure.
See full question below
Check all statements that are correct about the nervous system control of blood flow. Check Al That Apply
An increase in vasomotor tone chutes blood vessels to dilate further and blood pressure to decrease
A decreto in vnamoror tone cautet blood vessels to dilate and blood pressure to decroma.
Nervous control of blood vessels causes blood to be shunted from one large area of the body to another.
in skeletal and cardiac muscle tissue opinephrine and norepinephrine released by the sympathetic nervous system cause the blood vessels to dilate, Increasing blood flow.
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Which of the following statements about water policy is true?.
Answer:
current laws that are in place about water policy would most likely eliminate water quality problems if they were enforced.
Explanation:
If and cx = 5 units, what is dz? 2 units 3 units 4 units 5 units.
Based on the calculations, the magnitude of side DZ is equal to 4 units.
How to calculate the magnitude of DZ?From the diagram, we can deduce that CD is parallel to XZ and as such, triangle XYZ is similar to Triangle YCD. Thus, the ratio of their corresponding side lengths are equal.
By applying the similarity condition, we have:
XY/CY = ZY/YD
(XC + CY)/CY = (DZ + DY)/DY
Substituting the given parameters into the formula, we have;
(5 + 25)/25 = (DZ + 20)/20
30/25 = (DZ + 20)/20
600 = 25DZ + 500
25DZ = 600 - 500
25DZ = 100
DZ = 100/25
DZ = 4 units.
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