A spring gun shoots out a plastic ball at speed v0. The spring is then compressed twice the distance it was on the first shot

Answers

Answer 1

Based on the compression of the spring and the speed, the following are true:

The factor by which the spring's potential energy is increased is = 4.The factor of increase in speed = 2.

What is the factor of increase in potential energy?

Potential energy is found as:

= 0.5k x (2 x compression²)

= 4 x 1/2kx²

The 4 shows that the potential energy increases by 4 times.

What is the factor of increase in speed?

Initial speed is:

= x × √(k/m)

New speed will be:

= Compression factor x speed

= 2x × √(k/m)

The speed will therefore be increased by a factor of 2.

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Related Questions

Read the excerpt from julius caesar, act 1, scene 2. Soothsayer. Beware the ides of march. Caesar. What man is that? brutus. A soothsayer bids you beware the ides of march. Caesar. Set him before me; let me see his face. Cassius. Fellow, come from the throng; look upon caesar. 25 caesar. What say’st thou to me now? speak once again. Soothsayer. Beware the ides of march. This soothsayer’s warning in this passage is an example of figurative language. Inversions. Foreshadowing. Hyperbole

Answers

Answer:

C. Foreshadowing

Explanation:

I did the quiz

Julius Caesar is a masterpiece by William Shakespeare. It is a historical play which has event of mishaps. It is a scheme of murdering Julius Caesar plotted by Cassius and joined by Brutus.

Which curse of impotence affected Caesar?

In the play, Julius Caesar and his wife Calpurnia were not able to conceive a child. This curse of impotence affected Caesar. Caesar was thinking of becoming the king for that, he needed to have an heir and that to a son. So that his regime can be secured.

Mark Antony was a general and very good friend of Caesar. Antony believes that every word from Caesar is a fact. He agrees to whatever Caesar asks him to do. He even agreed to touch Calpurnia to cure the curse of impotence. This excerpt concludes that Caesar and his wife Calpurnia does not have children and Antony his ally does whatever Caesar asks him to do.

Therefore, Julius Caesar is a masterpiece by William Shakespeare. It is a historical play which has event of mishaps.

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My three cars can travel the same distance on a tank of gas

Answers

Answer:

what is the question? theat has no question to it. your car had the same gas mileage.

In paragraph 17 of the excerpt from the piano shop on the left bank, how does the narrator feel about playing the stingl piano in the piano shop?

Answers

The narrator feel about playing the stingl piano in the piano shop as he enjoys showing Luc that he can play different types of music.

What is the piano shop about?

The book titled the Piano Shop on the Left Bank: Discovering a Forgotten Passion in a Paris Atelier is known to be a famous book that was written  by Thad Carhart.

The book talks about a man and him walking his two young children to school every day.  Thad Carhart helps us to see a little storefront in his Paris neighborhood.

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The industrialization and mechanization of agriculture in the united states during the past 70 years have resulted in

Answers

Answer:

a decrease in the number of farms and an increase in the size of farms?

Explanation:

I hope this helped

Have an AMAZING day. :)

The underlined portion of the sentence is known as a(n)

Answers

Answer:

your answer would be A

Explanation:

An expert in organ transplants, the chief surgeon of the hospital routinely spoke at conferences. "An expert in organ transplants" is an appositive.

Answer:

i think its A

Explanation:

What is a difference between an authoritarian government and a democratic government brainly

Answers

Individual freedoms are subordinate to the state and there is no constitutional accountability and rule of law under an authoritarian regime. Democracy is a system of government where the citizens exercise power by voting.


Hope this helps

Answer:

The difference between an authoritarian government and a democratic government is that the authoritarian government has complete power/ownership over the country and everyone within the country, while a democratic government the government has very limited power divided in three branches while the citizens choose who gets elected to be in high power on their behalf.

Explanation:

Authoritarian government is on the basis of authority. The leaders of the government control every central part of the government and make changes to the country without its citizens consent or say. Authoritarian government is a very risky/evil form of government because it gives the leaders of the government complete control over every aspect of a person's life that's including entertainment, (by restricting their citizens from different forms of entertainment such as video games) social, (controlling their beliefs and what they feel is wrong or right) and financial which is by limiting how much of THEIR OWN money they can have/spend.

A common example of an authoritarian government would be Russia. Russian citizens do not have a say in what the country does and that is including war. Which is why will see many anti-war protests from Russian citizens during these times, you will also see them getting arrested for these protests. Entertainment, social, and financial control over a group of people's lives is authoritarian.

Democratic government is basically where the citizens of the country have a complete say in who becomes an elected official for their country.  Common example of a democratic government is America. People in America choose who makes the decisions on behalf of them in government and Americans even have legislatures in place to make sure the government doesn't get too much power like separation of powers or checks and balances which divides the power between the three branches of government and the citizens are the ones who vote in the elected officials who will run these three branches of government.

They're many differences between an authoritarian government and a democratic government, so I will sum the complete different between the two in one statement. "The difference between an authoritarian government and a democratic government is that the authoritarian government has complete power/ownership over the country and everyone within the country, while a democratic government the government has very limited power divided in three branches while the citizens choose who gets elected to be in high power on their behalf."

Hope this helps.

A client admitted to the hospital with severe diarrhea has a k+ level of 6.7 meq/l (6.7 mmol/l) and symptoms of paresthesia, restlessness, and dyspnea. arterial blood gases reveal a low ph level. which intervention will the nurse anticipate administering to correct this condition?

Answers

The intervention that the nurse anticipates when administering to correct this condition is the use of intravenous drip (IV) fluids and insulin to balance out their pH.

What is Metabolic Acidosis?

This refers to the medical condition in the human body where there are chemical changes in the body that makes the body more acidic.

Here, we can see that the client which is admitted into the hospital has a k+ level of 6.7 meq/l (6.7 mmol/l) and has symptoms of paresthesia, restlessness, and dyspnea and this shows the client has a metabolic acidosis.

Hence, we can note that the thing which the nurse will administer is intravenous drip (IV) fluids and insulin to balance out the pH of the client.

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Animal life changed greatly during the cambrian explosion, with some groups expanding in diversity and others declining. What are the current hypotheses that explain these trends?

Answers

The current hypotheses that explains these trends are

Global climate changes. Atmospheric changes.Radiation of numerous terrestrial groups.

What was the Cambrian explosion?

This was the time that quite a number of organisms first appeared in the record of fossils.

This diversity took place over a very short period of time. This is why it is known as the Cambrian explosion.

Complete question

Animal life changed greatly during the Cambrian explosion, with some groups expanding in diversity and others declining. What are the current hypotheses that explain these trends?

A. Global climate changes.

B. Atmospheric changes.

C. Predator prey relationships.

D. Appearance of the marine top predator.

E. Changes in the regulations of develop.

F. Radiation of numerous terrestrial groups.

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Amelia and her friends are always busy. Rewrite the sentences below, conjugating the verbs in bold, then indicate whether these activities are more likely done to be done indoors (adentro) or outdoors (al aire libre). ¡ojo! remember to start your sentences with a capital letter and end them with a period

Answers

The sentence rewritten below is;

Amelia and her friends watch the television and sends messages.

What is the difference between indoor or outdoor activity

Indoor activities are activities performed or designed to be carried out within the interior of a building. Outdoor activity on the other hand, is designed to be carried out in the open air.

Therefore, Amelia and her friends are involved in indoor activity.

The complete question:

Remember to start your sentences with a capital letter and end them with a period.

1. Amelia y sus amigos mirar la tele y mandar mensajes de texto cada noche enter answer

adentro

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French fries are digested in the intestine, breaking them into smaller molecules

Answers

--> French fries are digested in the intestine, breaking them into smaller molecules.(Catabolic process)
--> A body builder exercises to build muscles through protein synthesis. (Anabolic process)
--> A child eats a milkshake, which provides her with energy (catabolic process).

One of the most important characteristics of the water molecule is its _____, which allows it to surround and attract both positive and negative ions.

Answers

Answer:

Polarity

Explanation:

Covalent bonds may be either polar or nonpolar. Polar molecules, such as water, are asymmetric molecules that have unbalanced electronegativity, leading to slight charges on the atoms within the molecule.

Water's polarity

The chemical equation for water is [tex]H_20[/tex]. In this molecule, oxygen has 2 unbonded electron pairs. This causes the molecule to have a bent geometry. Bent molecules are always polar due to the dipoles formed by the unshared electron pairs. These dipoles create a slight negative charge on the oxygen atom and a slight positive on the hydrogen atoms.

Intermolecular Forces

Due to the slight charges of a water molecule, the oxygen molecules attract positive ions, and the hydrogen atmos attract negative ions. This interaction is known as an ion-dipole intermolecular force (IMF).

Answer:

Polarity

Explanation:

Polarity in a substance or molecules arises when the two combining atoms have different electronegativities. As more electronegative atoms will attract the electrons from electropositive atoms toward itself.

Due to this, there will be development of partial positive charge on electropositive atoms and a partial negative charge on the electronegative atoms.

For example, in water (H₂O) due to the difference in electronegativities of the hydrogen and oxygen atoms, there is a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom.

Due to these charges it is able to attract ions of opposite charges that are surrounding.

Thus, we can conclude that one of the most important characteristics of the water molecule is it's polarity, which allows it to surround and attract both positive and negative ions.

What was Yellow submarine based on

Answers

Answer:

The song inspired the 1968 United Artists animated film Yellow Submarine, which was produced by King Features Syndicate

Explanation:

PLEASE MARK AS BRAINLIEST

How might man make the argument that prosperity for one is prosperity for others

Answers

Man can argue that the prosperity of one is the prosperity of others showing that animal exploitation promotes benefits to men

A helicopter hovers 200. 0 meters over the ground and releases a relief packet. How much time does it take for the food packet to reach the ground?

Answers

This solution assumes that there are no air resistance and no wind and thus no drag to the object itself

Based on the information given:

inital height = 200final height = 0 or groundlevelno intial velocityacceleration: -g or 9.8m/s^2  (gravitional acceleration)

With that information at hand, we use the physics equation:

      [tex]x = x_{intial-height} +v_{intial-velocity}+\frac{1}{2}at^2[/tex]

a: accelerationt: time taken for the fallx: (with no subscript) is the final height

Now let's plug in all the known variables and solve.

     .[tex]0 = 200-\frac{1}{2}*9.8t^2\\ \frac{1}{2}*9.8t^2 = 200\\4.9t^2 = 200\\t = 6.389s[/tex]

Thus it takes the food packet approximately 6.389 seconds to hit the ground.

Hope that helps!

We are all familiar with x-rays. They are used to detect broken bones and other injuries to our skeletal muscular system. Other waves in the electromagnetic spectrum are utilized in the medical field. One type of wave, considered a mutagen, is used in cancer therapy. What is that electromagnetic wave?

Answers

Answer:

Yes of course

Explanation:

Isn'to I'm right

According to the graph, which of the following occupations has the highest employment level? cashiers registered nurses waiters and waitresses customer service representatives

Answers

According to the Occupations with the Highest Employment Levels, May 2013 graph, the highest employment level is the Cashier.

What is the employment level?

The employment level can be defined as the number of persons engaged in productive operations and activity in an economy. This notion applies to both employees and self-employed people.

The two most common employment measurements are:

The number of people employed andEmployees number


From the graph, the Employment level is calculated as follows:

[tex]\mathbf{= \dfrac{employed \ people }{total \ labor \ force } \times 100\%}[/tex]

We realize that the Cashier has the highest employment level, since it has the peak number in the graph.

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Answer:

Cashier

Explanation:

Of the following statements about protected areas that have been established to preserve biodiversity, which one is not correct?

Answers

Answer:

. About 25% of Earth's land area is now protected.

Explanation:

Please mark me brainliest if correct

________ was once a center of banking and finance, with a thriving capital city, but still hasn't fully recovered from the civil war that plagued it from 1975 to 1990.

Answers

Answer:

the answer is Israel, I had the same problem before.

The identity a² – b² = (a + b)(a – b) is true for all values of a and b. Compute the whole number value of 2021² – 2020²

Answers

Answer:

Explanation:

Remark

The numbers here when subtracted, make 1.

ie 2021 - 2020 = 1

So all you have is 2020+2021 = 4041

(2021 - 2020)(2021 + 2020) = 4041

This doesn't work for every number you could choose, but it works for these 2.

The pulley in the figure (figure 1) has radius r and a moment of inertia i. The rope does not slip over the pulley, and the pulley spins on a frictionless axle. The coefficient of kinetic friction between block a and the tabletop is μk. The system is released from rest, and block b descends. Block a has mass ma and block b has mass mb

Answers

The speed of block B in terms of the distance (d) it has descended is [tex]V=\frac{2gd(m_B-\mu_k m_A)}{m_A \;+\; m_B \;+\;\frac{I}{r^2}}[/tex]

How to determine the speed.

In order to determine the speed of block B in terms of the distance (d) it has descended, we would apply the work-energy theorem as follows:

[tex]Work=\Delta KE=KE_f-KE_i[/tex]

The work done due to gravity is given by:

[tex]W_g=(m_B)gd[/tex]

The work done due to friction is given by:

[tex]W_f=-\mu_k (m_A)gd[/tex]

The angular velocity of pulley is given by:

[tex]\omega = \frac{V}{r}[/tex]

Applying the work-energy theorem, we have:

[tex]W_g+W_f= KE_f-KE_i\\\\(m_B)gd-\mu_k (m_A)gd=\frac{1}{2} m_A V^2+\frac{1}{2} m_B V^2+\frac{1}{2} I\omega^2-0\\\\gd(m_B-\mu_k m_A)=m_A V^2+ m_B V^2+\frac{1}{2} I(\frac{V}{r} )^2\\\\2gd(m_B-\mu_k m_A)=(m_A + m_B +\frac{I}{r^2} )V\\\\V=\frac{2gd(m_B-\mu_k m_A)}{m_A \;+\; m_B \;+\;\frac{I}{r^2}}[/tex]

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If the domino effect occurs as a result of changes in the money supply, what will most likely happen as an immediate result of banks having more money to lend? borrowing will decrease. Interest rates will decrease. Investing will decrease. Inflation will decrease

Answers

The immediate effect of banks having more money to lend is that : Inflation will decrease.

What is domino effect?

Domino effect refers to the additional output that is produced by one event that bring about same effect on others.

This means that the domino effect is when one disaster affects or brings destruction or disruption to others, leading to similar events.

Summarily, in a domino effect, one event will bring the fall of the other.

Hence, the immediate effect of banks having more money to lend is that inflation will decrease.

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A. Borrowing will decrease.

Who called the previous leader weak, gave an angry speech at the united nations and grew up as a peasant in russia?

Answers

Khrushchev was known to be the man who called the previous leader weak, gave an angry speech at the united nations and grew up as a peasant in Russia.

When did Khrushchev speech about?

Nikita Khrushchev was known to be the First Secretary of the Communist Party of the Soviet Union that was said to have given a angry speech at the United nations.

He was said to have hit his shoe on his delegate-desk as an act of protest as at when Philippine delegate Lorenzo Sumulong was giving his speech in the 902nd Plenary Meeting of the United Nations General Assembly.

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Which statement best compares the use of imagery and color in the poem and artwork to portray the woman? the artwork’s use of color presents a woman of vigor and action, while the poem does not. The poem portrays the woman as unrefined, while the painting presents her as cultured. The artwork suggests a woman in her home, while the poem’s figurative language connects her to nature. The poem suggests that the woman is aloof, while the painting shows her to be self-absorbed

Answers

From the poem the best comparison of the use of imagery and color is that

The artwork suggests a woman in her home, while the poem’s figurative language connects her to nature.

A summary of the poem

The summary of this poem is that the woman is said to be seated in front of a mirror to start her daily task of applying makeup. The woman here is a Japanese.

The figurative language that is used makes us to compare her hair, and other parts of her to elements of nature.

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Answer:

The answer is the third one

Explanation:

I'm in the middle of a unit test right now!

Gracias por llamar. Talking visiting taking calling

Answers

Answer:

CALLING

Explanation:

A population has a mean of and a standard deviation of . suppose a simple random sample of size is selected and is used to estimate . use z-table. a. what is the probability that the sample mean will be within of the population mean (to decimals)? b. what is the probability that the sample mean will be within of the population mean (to decimals)?

Answers

The probability of the sample mean in each of the given options are respectively; 0.8884 and 0.9934

What is the Probability?

We are given from online complete question;

Mean; µ = 300

Standard deviation; σ = 70

Sample size; n = 125

A) For the sample to be within 8 units of the population mean, we would have sample values of 292 and 308. Thus, the expression is;

P(292 < x < 308).

z-score here is;

z = (292 - 300)/(70/√125) or z = (308 - 300)/(70/√125)

z = -1.28 or 1.28

From online p-value from z-score calculator, the p-value is 0.8884.

B) For the probability of the sample mean to be within 17 units of the population mean, we need to find the values from 283 to 317.  We want to find P(283 < x < 317).

The z-scores here are;

z = (283 - 300)/(70/√125) or z = (317 - 300)/(70/√125)

z = -2.72 or 2.72

From online p-value from z-score calculator, the p-value is 0.9934

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Why grade 12 learners should write their nbts as early as possible

Answers

Answer: help to interpret your NSC results and can be used by universities in different ways. so these are two reasond.

Explanation:

Kimberly has seven colors of lanyards. she uses three different colors to make a key chain. how many different combinations can she choose?

Answers

The number of different combinations can she choose is; 210.

What is the permutation?

We are told that;

Number of colors of Lanyards she has = 7

Number she wants to use to make a key chain = 3 colours

Thus, number of different combinations can she choose is gotten through permutation formula;

P(n, r) = n!/(n - r)!

P(7, 3) = 7!/(7 - 3)!

P(7, 3) = 210

Thus, the number of different combinations can she choose is 210.

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A car travels 20. Meters east in 1. 0 second. The displacement of the car at the end of this 1. 0-second interval is

Answers

Answer:

Displacement is the word we use for the distance covered so in this case when a car travels 20 meters east in 1 second, at the end of that 1-second interval a car travels a distance of 20 meters.

And the distance covered is the displacement, so it means that displacement of the car after 1 second is 20 meters east.

One beaker contains pure water and the other beaker contains pure methanol at the same temperature. Which liquid has the higher surface tension and viscosity?

Answers

The water has a higher viscosity and surface tension compared to the methanol.

What is Surface Tension?

Surface tension can be defined as the force that acts on the surface of a liquid to give it am elastic skin that is stretched.

Thus, because of the strong intermolecular hydrogen bonding in water and it's high melting and boiling point than methanol, the surface tension and viscosity of water is higher than that of methanol.

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How vocation stress may negatively affect your family

Answers

Explanation:

Vocational stress refers to the stress caused because of one’s professional settings. It can be caused because of a number of reasons, like the fear of losing one’s job, working overtime, not getting credit for one’s efforts, being pushed to meet unrealistic targets, being blamed unfairly, not getting along with the boss or colleagues, or being forced to compromise with one’s honesty. In any case, vocational stress causes feelings of fear and anxiety, which greatly affects family life.

A high degree of stress or anxiety makes one irritable and impatient. The person becomes unpredictable and easily loses his/her temper with family members. Tantrums become common and the rest of the family start avoiding the individual. A disconnect starts setting in, pushing him/her further into depression. This leads to a lack of confidence and eventually with growing frequency of arguments, family life does not remain peaceful.

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Whats 6/5 divided by -3/2 Can some1 please answer these questions HURRYShow step-by-step2A + 5B --> 3C + D2.0 mol A and 4.0 mol B react to form 1.8 mol C. What is the PERCENT YIELD of this reaction? By what means (or force) can the atoms in compounds be separated? 1) What is the proper way to carry a microscope? 2) What is the typical magnification of an ocular lens? What other magnifications are possible? 3) What are the magnification abilities of each of the objective lenses? What is the total magnification with each objective? a) Scanning (small lens), red ring = b) Low-power (medium lens), yellow ring = c) High-power (large lens), blue ring = d) Oil immersion (largest lens), white ring = 4) Why do you use immersion oil with 100% objective lens? 5) What is the total magnification of a sample with an ocular lens power of 15X and using a 40X objective lens? 6) What is a diaphragm? What does it do? Which is one use for radioactive isotopes? What happened in the end of the baleks scale? what would happen if glycosis stopped happening in a cell In one or two sentences summarize how Booker T. Washington planned on helping African Americans. Which expression is equivalent to 3/6 divided by 7/9 *BRAINLIEST* What values are equal to the inequality? Which scenario best reflects the relationship between production and demand in a recession?O Car dealerships have minimal overstock.Car dealerships are not restocking.Car dealerships cannot sell their stock.O Car dealerships cannot obtain stock.OdAnswer Help please........... The length of a day on Earth is 24 hours. The length of a day on Mercury is 58 2/3 times the length of a day on earth. The length of a day on Mercury in hours is Think of a time when you struggled to learn something and gave up before fully learning it. Why did you give up? How did you feel when you gave up? Was it something you really wanted to learn? How might your life be different now if you had learned that skill? Please answer the following question.... meaning of astrophysics b) identify ONE major economic development in Eurasia in the period circa 1200-1450 that is illustrated by the passage. What was a result of Napoleons economic reforms in France?Taxes were based on fixed rates and were no longer a surprise. The lower classes were no longer required to pay taxes.Tax collection was localized, and it differed from region to region.Only people in the upper classes had to pay taxes. Arrange the fraction in asending and desending order 4/5 , 2/15 , 2/30