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? A body is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150N. What is the tension in each wire?

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So, the weight is supported by the tension in the two wires, but only part of the tension goes in holding the body: the vertical component.

If the angle between the ceiling and the wire is 40 deg, then the vertical component is

T_y = T * sin(40),

There are two wires, so together they do

2*T*sin(40)

And all this holds the weight of the body, so:

2*T*sin(40)=150 —-> T = 75/sin(40)~116.68 N,

Notice how it is larger than 150N (both wires is ~ 233 N), as the angle becomes smaller, there is less tension that is vertical, so one needs more tension to make the vertical component as large as (half) the weight of the body

Hope it helps!

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Which two prominent sounds increase the tension in the story? A. the revelers and the bells B. the clock and the revelers C. the bells and the music D. the music and the clock

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Answered by answersmine AT 22/10/2019 – 02:45 AM

The two prominent sounds that increases the tension in the story The Masque of the Red Death by Edgar Allan Poe are the revelers and the bells. The answer is letter A. It is a story which centers around the sin, death, madness and end of the world. It clearly depicts the horror and violence of the story base on how it is presented with death impersonating one of the people to slaughter them all.

Post your answer

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What did Marcus Garvey’s Universal Negro Improvement Association advocate? A. return of African Americans to their homeland B. cultural integration of black and white Americans C. cultural pluralism in American society D. reduction of racial tension through anti-lynching campaigns E. universal education for the African-American community

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What did Marcus Garvey’s Universal Negro Improvement Association advocate? A. return of African Americans to their homeland B. cultural integration of black and white Americans C. cultural pluralism in American society D. reduction of racial tension through anti-lynching campaigns E. universal education for the African-American community

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Which statement best describes how the order of events heightens tension in this passage? If Pyramus had left at the same time as Thisbe, he might have seen that she was not killed by the lion. If the lioness had arrived later, she would have encountered Pyramus rather than Thisbe. If Pyramus had arrived earlier, he would have seen the lion attack Thisbe. If Pyramus and Thisbe had arrived at the same time, they would have encountered the lioness together.

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Answered by answersmine AT 22/10/2019 – 03:11 AM

The statement that best describes how the order of events heightens tension would be: If Pyramus had left at the same time as Thisbe, he might have seen that she was not killed by the lion.
In the story, Pyramus just see the lioness with blood covering its mouth. So Pyramus just make the assumption that the Lioness killed Thisbe

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Which supernatural element described In this passage helps build tension by foreshadowing future events

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Which supernatural element described In this passage helps build tension by foreshadowing future events

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Ernesto read a play about a king who returns home after many years and finds a strange man exiting his wife’s bedroom. The king curses the man and orders that he be executed, but later he learns that the stranger was his grown son, who he had not recognized. Although the play ends badly for the king and his family, a few points of humor in the play break up the tension. Which of the following is a term to describe those moments of humor? A. tragedy B. comic relief C. satire D. farce

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Here are a few pointers; hope this is useful)

Ovation-by definition- is show of appreciation from an audience, for a person’s accomplishments or flaw.

“Everyone deserves a standing ovation because we all overcometh the world.”

A person’s accomplishment could be how they made a positive change in this world, strong leadership- that makes them a effective leader or simply helping others. A person’s flaw- mistakes in life, sin or even guilt should also be considered an appreciation- an ovation for representing mankind’s flaw and that humanity makes mistakes, fulfilling at least one deadly sin such as greed, lust, selfishness etc.

Thus, regardless of a person’s achievement or flaw- a person deserves an applause for, not the least, living in this society and this world that we are all living together and dying together.

That was just the introduction.. the best part is yet to come.. now it’s your turn!!

Here are other pointers to talk about in your essay:

Shakespeare’s famous line “All the World’s a stage. That agrees with your line: “Everybody deserves a standing ovation…”

Shakespeare explains that men and women are like players: they live, and die, some being celebrated and some forever living in solitude till their death. Shakespeare states the world is a “stage” which symbolizes that mankind is in its peak. The world is changing everyday: little by little and humanity is falling behind.
Due to our world turning into machinery: factories, an automotive future: where humans only job to live (entrance) and to die (exit) the famous humans remembered and the flawed not recalled.

This is according to Shakespeare’s imagery.

I don’t know what grade your in, but I think simplifying Shakespeare’s word of mouth in your essay would be handy and useful as it has strong references of your quote, and agrees strongly in your essay.

Hope this helps 🙂

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A certain string on a piano is tuned to produce middle c (f = 261.63 hz) by carefully adjusting the tension in the string. for a fixed wavelength, what is the frequency when this tension is tripled?

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Answer:

1) Water has very high specific heat.

2) It expands when it freezes

3) ability to dissolve in ionic substances

4) Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid.

Explanation:

1) Water molecules due to their high specific heat , undergo relatively less increase in temperature after absorbing heat. So they prevent their adjoining area to experience sharp increase in temperature.

2) Water is an example which expands on freezing. In it , large spaces are left between molecules when it cools. It happens because hydrogen bonds prevent any two molecules to come very close thereby  creating gaps. This gap is filled up when ice melts , which results in overall reduction in volume of water.

3) Uneven distribution of charge results in water molecules becoming polar in nature . A polar substance  can be dissolved in polar solvents only.

4) It is due to property of surface tension. Property  of surface tension results due to molecules of water near the surface experiencing a  net downward  force due to hydrogen bonds . It is due to fewer hydrogen bonds made by them.

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Why do authors create tension in a story? A. To introduce the characters in the story and describe where the story takes place B. To reveal the author’s personal bias and opinion C. To neatly tie up loose ends at the story’s close D. To move the reader toward the climax of the story

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Answer:

Henri Rousseau’s Portrait of a Woman

Explanation:

Magical Realism finds precedent in eighteenth-century Gothic novels, but also connects with sixteenth-century Baroque or Surrealism, almost contemporary in the early twentieth century.

Among the most striking features of this movement, we find the blend of realism with pure unreality that is observed as normal, with the integration of magical elements without seeming extraordinary.

These works do not explain the supernatural elements and are narrated as something natural, with characters unaware of their transcendent dimension. In addition, death has paramount value in the relativistic discourse of truth, with a metaphysical focus on space and time and an intimate atmosphere that blends characters with myths, legends, and natural cultures.

Henri Rousseau’s Portrait of a Woman is considered one of the first magical realistic stories.

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The observation that ethanol (C2H5OH) has a higher vapor pressure than water (H2O) at the same temperature is due to more A. Hydrogen bonding in the water B. Kinetic energy in the ethanol C. London forces in the ethanol D. Hydrogen bonding in the ethanol E. London forces in the water What is the correct order for the surface tension of the following substances? A. Hg, C8H18, H2O B. Hg, H2O, C8H18 C. C8H18, H2O, Hg D. C8H18, Hg, H20 E. H2O, Hg, C8H18

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This problem is to apply Roult’s Law.

Roult’s Law states that the vapor pressure, p, of a solution of a non-volatile solute is equal to the vapor pressure of the pure solvent, Po solv, times the mole fraction of the solvent, Xsolv

p = Xsolv * Po sol

X solv = number of moles of solvent / number of moles of solution

The solvent is water and the solute (not volatile) is glycerin.

Number of moles = mass in grams / molar mass

mass of water = 132 ml * 1 g/ml = 132 g

molar mass of water = 18 g/mol

=> number of moles of water = 132 g / 18 g/mol = 7.33333 mol

mass of glycerin = 27.2 g

molar mass of glycerin:, C3H8O3: 3 * 12 g/mol + 8 * 1 g/mol + 3*16 g/mol = 92 g/mol

number of moles of glycerin = 27.2g / 92 g/mol = 0.29565

total number of moles = 7.33333 moles + 0.29565 moles = 7.62898 moles

=> X solv = 7.33333 / 7.62898 = 0.96125

=> p = 0.96125 * 31.8 torr ≈ 30.57 torr ≈ 30.6 torr.

Answer: 30.6 torr

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Let theta denote the angular displacement of a simple pendulum oscillating in a vertical plane. If the mass of the Bob is m, then the tension in string is

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Answer:

a) The time the police officer required to reach the motorist was 15 s.

b) The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) The total distance traveled by the officer was 225 m.

Explanation:

The equations for the position and velocity of an object moving in a straight line are as follows:

x = x0 + v0 · t + 1/2 · a · t²

v = v0 + a · t

Where:

x = position at time t

x0 = initial position

v0 = initial velocity

t = time

a = acceleration

v = velocity at time t

a)When the officer reaches the motorist, the position of the motorist is the same as the position of the officer:

x motorist = x officer

Using the equation for the position:

x motirist = x0 + v · t (since a = 0).

x officer = x0 + v0 · t + 1/2 · a · t²

Let´s place our frame of reference at the point where the officer starts following the motorist so that x0 = 0 for both:

x motorist = x officer

x0 + v · t = x0 + v0 · t + 1/2 · a · t²      (the officer starts form rest, then, v0 = 0)

v · t = 1/2 · a · t²    

Solving for t:

2 v/a = t

t = 2 · 15.0 m/s/ 2.00 m/s² = 15 s

The time the police officer required to reach the motorist was 15 s.

b) Now, we can calculate the speed of the officer using the time calculated in a) and the  equation for velocity:

v = v0 + a · t

v = 0 m/s + 2.00 m/s² · 15 s

v = 30 m/s

The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) Using the equation for the position, we can find the traveled distance in 15 s:

x = x0 + v0 · t + 1/2 · a · t²

x = 1/2 · 2.00 m/s² · (15s)² = 225 m

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I NEED HELP AND WILL RATE BRAINLIEST!!!!! A substance that has low volatility is also likely to possess: weak surface tension ——-strong surface tension little resistance to flow weak intermolecular forces I think that it is strong surface tension but I also kinda think that it would be little resistance to flow but I am only able to choose one so what do I do?

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25) Answer is: less metallic and more nonmetallic.

Electronegativity increases from left to right across a period, atoms have tendency to attract electrons.

Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.

26) Answer is: radioisotope.

Radioisotope has an unstable atomic nucleus and emit energy and particles when it changes to a more stable form.

Francium (Fr) is element with atomic number 87 (87 protons and 87 electrons).

27) Answer is: boils.

Boiling is the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.

The Celsius scale was based on 0°C for the freezing point of water and 100°C for the boiling point of water at 1 atm pressure.

28) Answer is: endothermic.

There are two types of reaction:  

1) endothermic reaction (chemical reaction that absorbs more energy than it releases, ΔH>0).

2) exothermic reaction (chemical reaction that releases more energy than it absorbs).  

For example, the breakdown of ozone is an endothermic process. Ozone has lower energy than molecular oxygen (O₂) and oxygen atom, so ozone need energy to break bond between oxygen atoms.  

29) Answer is: kinetic.

The average kinetic energy of molecules depends on the temperature.  

As temperature increases, molecules gain more energy from surrounding and move faster.  

Kinetic energy (standard unit is the joule J) depends on speed of the molecule.  

Solid gains kinetic energy to become a liquid and then becomes a gas.

30) Answer is: alpha particles.

This was famous Rutherford’s Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles.

Rutherford observed the deflection of alpha particles on the photographic film.  

Alpha particles are helium atom particles, consist of two protons and two neutrons.  

According to Rutherford model of the atom: atoms have their charge concentrated in a very small nucleus.  

31) Answer is: highest.

For example, calcium oxide.

Calcium oxide (CaO) has ionic bonds between calcium cations (Ca²⁺) and oxygen anions (O²⁻).

Because it has strong ionic bonds, it has high melting point (around 2600°C).

Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).

32) Answer is: a scientific model.

A scientific model is a representation of an idea, an object, a process or a system that is used to describe and explain phenomena that cannot be experienced directly.

33) Answer is: the superscript is mass number and the subscript is atomic number.

Atomic number(Z) is the number of protons, which is characteristic of a chemical element..

Mass number (A) is the total number of protons and neutrons in a nucleus.

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What is one literary device that an author can use to create suspence or tension?

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Answer:

“The Monkey´s Paw” is a short story that was written by W. W. Jacobs and it was published in 1902. The story narrates the events that take place in the lives of the Whites, an elderly father, and elderly mother and a grown son, who happen to receive the visit of a friend who gives them a Monkey´s Paw, a magical item that will grant three wishes. Disbeliving of the story, Mr. White decides to try it out, just to show his family  that everything is just a story, but then, all three start realizing that everything their friend said, was true, including the warnings.

The author builds up on the mood of mystery, and thrill, around the very idea of magic, and a magical item, by setting first a really mysterious and even frightening background to the story: “the night was cold and wet”, and them living far out from civilization, almost isolated. Then the friend, Sergeant-Major Norris, appears and after showing them the Monkey´s Paw, he also warns them that it is dangerous; that it will grant three wishes, but that the consequences will be unexpected and dangerous. These words further increase that sense of thrill, and also a foreboding.

Mr. White, trying not to believe the horror stories told by his friend, gives in and tries the wish thing, but nothing happens at first. They all dismiss the Paw as just another fantastical story. In the end, after their son dies to grant them their first wish, and when the time comes for the final wish, the level of mystery reaches and all-time high, and the reader feels just as much thrill and fear as Mr. White himself, when they hear the knocking on the door, after they wish their son could be returned to them from the dead.

Words, and imagery are the best way in which this author manages to convey that sense of thrill, foreboding and mystery.

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Increasing your level of strength by regularly creating a degree of tension in your muscles greater than they are accustomed to is called

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The risk of developing hypertension, heart disease and stroke can be reduced through diet and exercise.

Further Explanation:

Heart is the most vital circulatory organ in the body. The pumping of blood in the body is done by the heart. There are several heart issues that occur due to different reasons of malfunctioning of the heart. Hypertension, heart diseases and stroke are few of these heart issues.

Heart disease means the ailment that influences the heart. Heart diseases incorporate vein ailments, for example, coronary artery disease; heart rhythm issues and heart attack. It is otherwise called cardiovascular illness. Cardiovascular disease is a condition that includes limited or blocked veins which can cause a coronary failure, chest pain, stroke, etc.

Hypertension: This condition happens when there is constant pressure of blood against the walls of the arteries leading to several heart problems. The blood pressure is measured by the thickness of the artery and the amount of blood that flows in it. If the amount of blood is high and thickness of the artery is less, the blood pressure tends to be higher. The high blood pressure can be asymptomatic for several years. The continued damage to the blood vessels leads to hypertension in later stages of life. Hypertension can increase the risk of stroke.

Stroke: is the condition when oxygen fails to reach the brain due to malfunction of heart as well as the related organs the weakening of arteries causes blood clots due to high blood pressure. This causes less blood to flow to the brain causing stroke.

All these heart related problems can be cured by having a good diet as well as good lifestyle. Good lifestyle may include:

1. Getting enough relaxation and rest

2. Avoiding alcohol and other forms of intoxication.

3. Having a healthy and balanced diet.

4. Regular exercise.

Learn more:  

1. Learn more about heart disease brainly.com/question/1711248

2. Learn more about high blood pressure brainly.com/question/1160301

3. Learn more about hypertension brainly.com/question/1100758

Answer Details:

Grade: Middle School

Subject: Health

Topic: Cardiovascular System

Keywords:

Hypertension, heart disease, stroke, physical fitness, angina, lifestyle, balanced diet, arteries, heart, brain, blood clot, high blood pressure, circulatory system, blood, pumping of blood, relaxation, intoxication.

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N which North African country does tension exist between secularism and Islamism? A. Morocco B. Ghana C. Egypt D. Libya

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NAFTA created the world’s largest free trade area of 450 million people. It’s an economic powerhouse of $20.08 trillion, as measured by gross domestic product. That’s because it links the economies of the United States ($18.5 trillion), Canada ($1.67 trillion), and Mexico ($2.3 trillion). That trade area is greater than the economic output of the 28 countries in the entire European, NAFTA has opened the doors for jobs and economic growth, as well as even lowering prices, which helps reduce inflation. One example is oil. Food imports have also been greatly decreased. 

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The surface tension in a cup of water is caused by ____. A attractive forces between the water and its container B attractive forces between water molecules C adhesive forces between water molecules D adhesive forces between the water and its container

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Sediments are loose Earth materials such as sand that accumulate on the land surface, in river and lake beds, and on the ocean floor. Sediments form by weathering of rock. They then erode from the site of weathering and are transported by windwaterice, and mass wasting, all operating under the influence of gravity. Eventually sediment settles out and accumulates after transport; this process is known as deposition. Sedimentation is a general term for the processes of erosion, transport, and deposition. Sedimentology is the study of sediments and sedimentation.

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How does high surface tension support life

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How does high surface tension support life

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Why do you think there was so much tension and violence against African Americans in urban areas in the 1910s and 1920s?

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Native Americans were very connected with their environment – they nurtured it and used it as much as they needed, so as to survive. On the other hand, the settlers depleted all resources they could, razed everything to the ground in order to build their homes, as opposed to Native Americans who lived in nature. When it came to social relations, Native Americans were all equal (except for their chieftain). Europeans were also considered to be equal, however – they truly were not. Native Americans had their own beliefs and Europeans tried to force their religion onto Natives. When it came to slavery, there were no slaves with Native Americans – as I said, they were all equal. However, Europeans had no qualms about having slaves. 

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