The instantaneous velocity of the 15 kg. mass just after collision can be found by the principle of linear momentum.
a) The speed of the 15 kg. just after collision is 2 m/s.
b) The type of collision is inelastic collision
c) The compression of the spring is approximately 0.323 m.
Reasons:
The given parameters are;
Mass of the block attached to the spring, m₁ = 15.0 kg
Force constant of the spring, K = 575 N/m
Mass of the stone that strikes the block, m₂ = 3.00 kg
Speed of the stone, v₂ = 8.00 m/s
Speed with which the stone rebounds, v₃ = 2.00 m/s
a) The total initial momentum = 3 kg. × 8 m/s = 24 kg·m/s
The final momentum, just after collision = 3 × (-2) kg·m/s + 15 kg ×v₁
By conservation of momentum, we have;
24 kg·m/s = 3 × (-2) kg·m/s + 15 kg ×v₁
[tex]v_1 = \dfrac{24 \, kg \cdot m/s + 6 \, kg \cdot m/s}{15 \, kg} = 2 \, m/s[/tex]
The speed of the 15 kg. just after collision, v₁ = 2 m/s.
b) A collision is elastic when the kinetic energy of the collision is conserved
The initial kinetic energy, K.E.₁ = 0.5 × 3 kg. ×(8 m/s)² = 96 J
The sum of the final kinetic energy are;
0.5 × 3 kg. × (2 m/s)² + 0.5 × 15 kg × (2 m/s)² = 36 J
The initial kinetic energy ≠ The final kinetic energy
Therefore, the collision is not elastic
(c) The kinetic energy given by the block = The elastic potential energy gained by the spring
Kinetic energy of the block, K.E. = 0.5 × 15 kg × (2 m/s)² = 30 J
Elastic energy gained by the block = 0.5 × K × x² = 0.5 × 575 N/m × x²
Therefore;
0.5 × 575 N/m × x² = 30 J
[tex]x^2 = \dfrac{30 \, J}{0.5 \times 575 \, N/m} = \dfrac{12}{115} \, m^2[/tex]
[tex]x = 2 \cdot \sqrt{\dfrac{3}{115} } \approx 0.323[/tex]
The compression of the spring, x ≈ 0.323 m.
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Questions;
(a) The speed of the 15 kg mass immediately after the collision.
(b) Determine the type of collision; Elastic or inelastic collision.
(c) The distance to which the spring is compressed by the block.
generally reduces the number of hurricanes formed in the atlantic ocean results in a more active tornado season can lead to crop damage and landslides in california
Based on meteorological information El Nino generally reduces the number of hurricanes formed in the Atlantic ocean.
This is because the impact of El Nino quells the Atlantic hurricane effect. This is done by raising the quantity of sinking motion and improving atmospheric resilience.On the other hand, La Nina results in a more active tornado season.
This is because the La Nina effect pushes the jet stream to move towards the north, and subsequently, this effect reduces around the Pacific side.Excessive rainfall can lead to crop damage and landslides in California.
This is because continuous rainfall at a certain level in California leads to erosion which can damage crops. Subsequently, continuous rainfall of about two weeks can turn erosion into landslides in California, particularly the southern side.Hence, in this case, it is considered that different climatic conditions affect the physical environment of humans.
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IGCSE OR SAT DIPLOMA?
Answer:
sat
Explanation:
what are the expected tasks you have successfully accomplished
Answer:
absolutely nothing
Explanation:
the calves and shoulder blades are on the __________ body surface.
Answer:
posterior
Explanation:
Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?
Answer:
Both reactivity and electronegativity decrease down a group.
I'm assuming this is multiple choice...
Explanation:
Heredity is the transmission of genetic traits from parents to their offspring. Please select the best answer from the choices provided T F
Answer:
True
Explanation:
Answer:
The answer is T (True)
Explanation:
what are the challenges of planning for life after high school
Answer:
it all depends on if you want to get a job or start your own business and how sucessful you will be with your diploma and if you go to college
Explanation:
how can accessibility influence your career or study choice
What is Uruguay's capital? Uruguay City Montevideo Santiago La Basura
Answer:
Montevideo
Explanation: i just know because i paid attention to the video..
Answer:
montevideo
Example:in order for a survey to accurately generalize the entire population, the survey must
In order for a survey to accurately generalize the entire population, the survey MUST select participants in a RANDOM mode, and sampled individuals must have an EQUAL LIKELIHOOD of being chosen.
Random sampling refers to the sampling methodology by which each item or element of the target population exhibits the same probability of being included in the sample.
Random sampling represents the most reliable methodology of probability sampling.
Because samples are selected in a random mode, any research using a random sampling approach has high internal and external validity.
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Saving money for a house is a . Saving money for a rainy day or an emergency is a . Saving money for retirement is a .
Answer:
Saving money for a house is a
✔ long-term goal
.
Saving money for a rainy day or an emergency is a
short-term goal
.
Saving money for retirement is a
✔ long-term goal
.
Explanation:
Saving money for a house is a
Long term goalSaving money for a rainy day or an emergency is a
Short term goalSaving money for retirement is a
Long term goalGoals are those objectives which a person wants to achieve in a particular time period.
As a result of this, we can see that there are short and long term goals which are goals that are expected to be fulfilled in a brief and longer period of time.
This is because, when a person is saving money for a house, it is likely to be for a long time, because the cost of buying a house is high, however, saving for an emergency can be considered a short term goal because an emergency can occur at any time.
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a small amount of sodium hydroxide is added to water. when the chemical reaction reaches equilibrium, the ph is 12. which statement and conclusion about sodium hydroxide is correct?
The correct statement and conclusion about sodium hydroxide (NaOH) is: The negative log of the concentration of [tex]OH^-[/tex] ions is 12, so Sodium hydroxide is a strong base.
In Chemistry, pH literally means the power of hydrogen ions and it can be defined as a measure of the molar concentration of hydrogen ions in a particular solution, thereby, specifying the following;
The acidity of a chemical solution.The neutrality of a chemical solution.The basicity (alkanility) of a chemical solution.On a related note, a pH scale is a scale that is used to measure the concentration of hydrogen ions in both acidic and basic (alkaline) solutions.
Generally, a pH scale is calibrated with a standard measurement that ranges from 0 to 14.
On a pH scale, a solution with a pH of 7 is neutral, a solution with a pH below 7 is acidic and a solution is considered to be basic (alkaline) when its pH is above 7.
In this experiment, a small amount of sodium hydroxide is added to water, to give a pH of 12 when the chemical reaction reaches equilibrium.
Hence, the negative log of the concentration of [tex]OH^-[/tex] ions is 12, so Sodium hydroxide is a strong base.
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Answer:
The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong base.
What is the economic outlook for occupations in the healthcare sector? weak to very poor depends on the economy will remain stable will increase in demand over time
Answer:
Will increase in demand over time
Explanation:
I just took the test
Economic outlook for occupations as regards health sector will always experience increase in demand over time.
The healthcare sector can be regarded as aggregation as well as integration of sectors which is also an important sector within the economic system , that carry out the responsibility of services in the treatment of patients with preventive as well as rehabilitative and palliative care.However the Economic outlook for occupations in this sector will continue to rise in demands because people will always seek medical attention.Learn more at:
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What does the underlined word mean in the following sentence? La abuela se rompió un brazo. broke her arm broke her leg broke her nose broke her finger
Answer:broke her arm.
Explanation:
The meaning of the underlined word "rompió un brazo" is;
A: broke her arm.
The underlined word in the sentence is; "rompió un brazo".
Let us analyze each of the options;
Option D; Broke her finger; In spanish this is called; rompió un dedoOption C; broke her nose; In spanish this is called; se rompió la narizOption B; broke her leg; In spanish, this is called; se rompió la piernaOption A: broke her arm; In spanish, this is called; rompió un brazo"Thus, option A is the correct answer.
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Rewrite the following sentence using a direct object pronoun. Nosotros comemos las manzanas. Nosotros los comemos. Nosotros las comemos. Nosotros se comemos. Nosotros la comemos.
Answer:
Nosotros las comemos.
Explanation:
Nosotros las comemos is the sentence using a direct object pronoun. Hence, option C is correct.
What is direct object pronoun?For instance, you would say I while referring to oneself as the sentence's subject, but me when referring to yourself as the sentence's object.
Pronouns, clauses, phrases, and nouns can all be used as direct objects. Finding the direct object, if there is one, is simple if you can recognize the subject and the verb in a statement.
The thing that the verb is acting on is known as a direct object. The word "vehicle" is a direct object in the sentence "He sold his car," for instance. As in "The man gave his wife a necklace," the indirect object is the person who receives the direct object. The direct object is "necklace," and the indirect object is "wife."
Thus, option C is correct.
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which of the promises to settlers listed in the infographic did not appear in the bill of rights?
The Bill of Rights are firs ten amendments to the United States Constitution which guarantees certain rights to the American public.
As a result of these, there were several promises made to the settlers by the patriots who drafted the BIll of Rights and the Constitution. Some of them include:
There would be freedom to practise whatever religion they wanted toThere would be fair punishment for any crimeThere would be a right to fair trial by a jury for any accused, etcHowever, one of the promises which was not a part of the Bill of Rights was the end of slavery, however, it was stated that everyone was equal
Please note that you did not add any infographic so i cannot help much, except give a general overview which should help you.
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this graph gives the growth of a plant over time. what is the slope of the line, and what does the slope mean in this situation? select from the drop-down menus to correctly complete the statement. the slope is choose... , which means that the plant choose... by choose... every day.
The slope is the ratio of rise to the run of a graph. The slope of the plant growth to time graph given in the question is 0.5
Slope = Rise / Run
Rise = y2 - y1 = (20 - 10) = 10Run = x2 - x1 = (50 - 30) = 20Slope = Rise / Run = 10/20 = 1/2 = 0.5
Hence, the slope of the graph is 0.5.
This means that the plant's height increases at a rate of 0.5 cm everyday .
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which of these events can happen when galaxies collide
Answer:
Galaxies merge
Explanation:
When two galaxies collide the tidal waves cause objects to begin to change their orbital periods according to where the massive object is. This can cause galaxies to become distorted or even rip apart. Hope this helps!
Galaxies will merge when they will collide.
What is galaxy?A galaxy is a collection of stars, stellar remnants, interstellar gas, dust, and dark matter that is gravitationally bound. Galaxy sizes range from dwarfs with fewer than one hundred million.
Stars to the largest galaxies known as supergiants with one hundred trillion (1014) stars, each orbiting their galaxy's center of mass. Galaxies are thought to have an average of 100 million stars.
According on their optical shape, galaxies are classified as elliptical, spiral, or irregular.
According on their optical shape, galaxies are classified as elliptical, spiral, or irregular. It is believed that the nuclei of many of them contain supermassive black holes.
Therefore, Galaxies will merge when they will collide.
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the coffee and soup machine at the local subway station is supposed to fill cups with 6 ounces of soup. ten cups of soup are bought with results of a mean of 5.93 ounces and a standard deviation of .13 ounces. how large a sample of soups would we need to be 95 percent confident that the sample mean is within .03 ounces of the population mean?
Answer:
Explanation200ppp
pulso
what would be the outcome of the processes shown above if the mrna never moved outside of the nucleus?
Answer:See below
Explanation:
The process of protein synthesis initiates with the transcription process in the nucleus and continues with the translation process in the cytoplasm. If the mRNA never left the nucleus, the translation would not be possible.
-------------------------------------
The protein synthesis process involves transcription and translation.
Transcription:
Transcription is the copying process of the DNA section for the desired protein occurs.
It happens in the nucleus, where the template DNI strand is read in direction 3´→ 5´ to build the mRNA molecule in direction 5´→ 3´.
Once the transcription is over, the new mRNA molecule leaves the nucleus and goes to the cytoplasm.
Translation:
Translation occurs in the cytoplasm when mRNA meets a ribosome.
rRNA and tRNA read mRNA in the direction 5´→ 3´ to build the protein.
While the ribosome reads mRNA strain from its 5´ extreme to 3´, tRNA adds the correct amino acids to build the polypeptide.
Protein growth initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA.
If the mRNA does not move outside of the nucleus, the translation process is not possible. Only transcription would occur, but no translation. Protein synthesis could not be accomplished.
a motorist should know that he she is entering a work zone because of
If software can be affected by viruses, what do you think hardware can be affected by
Answer:
An easy way for a virus to damage hardware is by disrupting the normal operation of a computer’s power management or thermal management. For instance, the fans in laptops can be controlled through software. Disabling the fans can destroy the computer.
Explanation:
according to maslow, employment is an example of which type of need?
Employment can be considered as example of safety and security, which are types of human needs according to Maslow.
Maslow theory is about human Physiological needs. Physiological needs can be regarded as biological requirements that are very Essential for human survival.These could be food, drink, shelter as well as clothing.However, there are higher needs that needed to be met for human survive in term of safety and security, and employment is part of it.Employment as a needs helps man to cater for other needs such as shelter, foods, as easy living.Therefore, Maslow let us know that man Physiological needs are very essential for his security.
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Assume that you pay $2,849.84 in state property taxes every year. If your property has an assessed value of $41,302, what is your state’s property tax rate? a. 0.077 b. 0.032 c. 0.014 d. 0.069 Please select the best answer from the choices provided A B C D
The state property tax rate is the ratio of the tax amount and the total amount earned which is 0.069
Amount paid in property tax = $2849.84Total property value = $41,302The tax rate of it's property can be calculated thus :
(Amount paid ÷ total value) × 100%Tax rate = (2849.84 ÷ 41302) × 100%
Tax rate = 0.06900 × 100%
Tax rate = 6.9%
Therefore, the state property tax rate paid is 0.069
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Answer:
D
Explanation:
how long will it take the satellite with mass 1500 kg
Answer:
1.51 Seconds is the answer
which of the following is most likely the main claim that the writer is planning to make in the new version of the passage?
People often have different view. when it comes to writers. There is no much difference. Opinion and views differs from person to person. The writer's main claim or thesis in the new version of the passage is Da Vinci was a great artist because he had exotropia.
Exotropia is simply known to be a type of defect where the eyes are not align thag is one eye pushes outward. This form of outward pushing or deviation may be constant or intermittent.
The writer of the passage, claimed that Da Vinci's physical defect of exotropia was one of the main reasons for his success.
Conclusively, Humans can based their beliefs on what they see, know or studied. the writer choose to base the success of Da Vinci on his physical appearance.
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The full passage is below
(1) For centuries, art scholars have studied the renowned works of Leonardo da Vinci, the Renaissance artist, pondering how he created three-dimensional figures with such depth on flat canvases. (2) If da Vinci did have exotropia, in which an eye turns outward, he would not have been the only artist in history with that condition.
(3) Christopher Tyler, a visual neuroscientist at City University of London, noticed a pattern in da Vinci’s portraits and in works depicting the great artist. (4) While few self-portraits of da Vinci exist, Tyler argues that many of da Vinci’s portraits reflect his appearance. (5) As the great artist himself said, the soul “guides the painter’s arm and makes him reproduce himself, since it appears to the soul that this is the best way to represent a human being.”
(6) To test his theory that da Vinci had exotropia, Tyler studied the eye alignments of the subjects of six pieces of art that purportedly depict the Renaissance artist himself, including da Vinci’s Vitruvian Man and Salvator Mundi and Andrea del Verrocchio’s sculpture David. (7) The results confirmed Tyler’s suspicions: da Vinci likely had exotropia, with one eye turning out at -10.3 degrees.
(8) Tyler’s findings, which he published in JAMA Ophthalmology, created a stir in both the art and science communities. (9) Only about 1 percent of the population has exotropia, yet previous studies have suggested that other famous artists—like Rembrandt, Picasso, and Degas—had it as well, which indicates that the eye condition was more common in centuries past than it is now. (10) Tyler believes that da Vinci’s condition was intermittent—that is, his eye drifted out of alignment when he was relaxed, but when he focused, it would realign. (11) If Tyler is right and da Vinci could control his exotropia, then the artist could switch from 2-D to 3-D vision, enhancing his ability to accurately capture three-dimensional figures on a two-dimensional canvas.
The writer is working on a revision of the passage and has written the following thesis statement for it.
Based on the evidence from Tyler’s studies, it is clear that this condition was the primary reason for da Vinci’s success.
Which of the following is most likely the main claim that the writer is planning to make in the new version of the passage?
A The only way for an artist to be successful is to have exotropia.
B. Da Vinci was more successful as an artist than others who also had exotropia.
C. Studying just a few works of art can provide compelling information about an artist’s physical conditions.
D. The only way to fully understand an artist’s work is to study the artist’s physical conditions.
E. Da Vinci was a great artist because he had exotropia
A person suffering from anorexia nervosa typically suffers from which of the following health issues? A. low blood pressure B. thin/weak bones C. damage to internal organs D. all of the above Please select the best answer from the choices provided. A B C D
Answer:
The answer is d. all of the above.
Explanation:
The individual suffering from anorexia mainly focus to maintain their body weight and shape. This might damage their internal organs as the individual do not eat proper amount of food. The bones become weak and thin as sufficient amount of energy is not possible in the body. The individual might suffers from the hypotension due to low levels of the ions in the body.
A person suffering from anorexia nervosa typically suffers from all the above options explained. Thus the correct option is D.
What is anorexia nervosa?Anorexia is an eating disorder characterized by unusually low body weight, persistent anxiety about gaining weight, and an incorrect perception of the weight of an individual.
A key priority for anorexics is maintaining their size and physical appearance, which drives them to make hard work and determination that can seriously disrupt their lives.
As a result of their extremely underweight and unhealthful physique, anorexics frequently lack their natural glow, making them appear dull and faded. It also appears as damage to internal organs due to a lack of nutrients.
Therefore, option D is appropriate.
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a user is implementing security on a small office network. which two actions would provide the minimum security requirements for this network? (choose two.)
Implementation of firewall
installation of anti-virus software
jason and cora are riding on a roller coaster, which is producing high levels of arousal. they attribute their aroused state to romantic feelings for each other and feel they are falling in love. which theory would be best able to account for this outcome?
Based on her skills and interests, which careers would Coretta enjoy? Check all that apply. librarian professional hockey player musician zoologist English/French interpreter business owner electrical engineer
Based on her skills and interests, The careers that Coretta would enjoy are:
LiberianMusicianZoologistBusiness ownerThe full question is below:
Coretta is thinking about which careers she would enjoy. She considers her personal skills and interests. She enjoys reading and animals. She always likes to take charge of situations and find solutions to problems, which means she could make a good leader. She plays the flute very well. Based on her skills and interests, which careers would Coretta enjoy? Check all that apply.
librarian
professional hockey player
musician
zoologist
English/French interpreter
business owner
electrical engineer
Humans often chooses career path from different alternative that they have. It is choose mostly based on Education, skills, hobbies etc.
Career paths is simply known as ways or paths taken by humans through an industry or one's path through an organization.
An example, if your goal is to become a top Singer, you have to be able to sing, have a good voice and practice to become top Singer.Conclusively, some career paths often need credentials and as such an individual have to be thoroughly trained to be able to become one such as teaching.
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Answer:
Liberian
Musician
Zoologist
Business owner
Explanation: