The first tennis balls were made of what material?

Answers

Answer 1

Answer:

Explanation:

Leather stuffed with human or horse hair and wool.

Answer 2

Answer:

The first tennis balls were made of rubber

Explanation:

In the 18th century, strips of wool were tightly wound round a nucleus made of cork. Tennis balls with a cork core and cloth covering are still used in the original game of tennis, known as Real Tennis. In 1870, vulcanized rubber was first used to manufacture tennis balls.


Related Questions

What benefit do you think should be added to Social Security Disability Insurance?

Answers

Answer:

Disability and Supplemental Security Income. We pay disability benefits under two programs: The Social Security disability insurance program pays benefits to you and certain family members if you worked long enough and paid Social Security taxes.

Explanation:

Help please... look at the pictures

Answers

Answer:

4.A

5.B

6.D

Explanation:

A detailed description of a particular individual being studied or treated is called a

Answers

A case study is a detailed description of a particular individual that is being studied or treated.

Which behavior is most likely that of a person who is less prone to depression than others? A. keeping one's emotions private B. standing up for one's beliefs C. trying to be like one's peers

Answers

Answer:

The answer is B. Hope this helps!

The answer is B

Having confidence in one’s beliefs is something to help combat depression, not make one prone to it.

fitt is an acronym for​

Answers

Answer:

fit is an acronym for frequency, intensity, time, and type. i hope that answered your question!

Explanation:

Vitamin d deficiency during childhood leads to a condition of weak and malformed bones known as

Answers

Rickets, a child's body needs vitamin D to absorb calcium and phosphorus from food. Rickets can occur if your child's body doesn't get enough vitamin D or if his or her body has problems using vitamin D properly.

How much calcium do children need to keep their bones strong?

Answers

Answer:

Kids 1 to 3 years old need 700 mg of calcium a day (2–3 servings). Kids 4 to 8 years old need 1,000 mg of calcium a day (2–3 servings). Kids and teens 9 to 18 years old need 1,300 mg of calcium a day (4 servings).

Explanation:

Children who get enough calcium start their adult lives with the strongest bones possible.

When Spencer first started dating Melissa, their relationship quickly became very intense. But after a couple of weeks, Spencer became increasingly uneasy because Melissa seemed to constantly need his attention and reassurances of his commitment to her. When Melissa showed up unexpectedly at Spencer's office to have lunch with him, she became enraged when Spencer told her that he was taking two important clients to lunch. Shortly after this incident, Spencer tried to break off the relationship with Melissa, which turned into an ugly scene with her screaming profanities at him in the middle of the street. Several days later, Spencer learned that Melissa had been hospitalized for overdosing on tranquilizers. Melissa's pattern of behavior seems to fit which of the following disorders?

Answers

Melissa suffers from a personality disorder that results in up and down moods which could become violent.

Which of the following is a common characteristic of all anxiety disorders?
A. Above average number of phobias.B. Excessive, persistent fear and anxiety.C. Inability to control the body's reaction to fear.D. Sporadic, intense panic attacks.

Answers

Answer:

B- Excessive persistent fear and anxiety

Explanation:

Your license can be cancelled for failing to complete a required school. A. True B. False

Answers

Your license can be cancelled for failing to complete a required school.

A. True

Your license can be cancelled for failing to complete a required school - this statement is true.

For what reasons license can be cancelled?

A driver's license is a legal authorization, or the official document confirming such an authorization, for a specific individual to operate one or more types of motorized vehicles—such as motorcycles, cars, trucks, or buses—on a public road. Such licenses are often plastic and the size of a credit card.

Your license or certificate can be cancelled or suspended for involving in unlawful activity obtain a license by misrepresentation or fraudulent means.

You can even lose your license for driving without car insurance. But what most drivers don't know is that a surprising number of nondriving violations can result in the suspension of your license.

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What are the benefits of chemotherapy? Check all that apply. Decreases pain shrinks tumors kills cancer cells reduces pressure provides a drug-free treatment removes tumors stops cancer from spreading works throughout the whole body

Answers

Chemotherapy offers multiple benefits such as decreasing pain, shrinking tumors, killing cancer cells, and reducing pressure caused by tumors.

Chemotherapy is a widely used cancer treatment that offers several benefits:

Decreases pain: By reducing the size of tumors or destroying them, chemotherapy can help in alleviating cancer-related pain.Shrinks tumors: Chemotherapy aims to shrink tumors, which can alleviate symptoms and make surgical removal easier if needed.Kills cancer cells: This is the primary purpose of chemotherapy. It targets rapidly dividing cancer cells to stop their proliferation.Reduces pressure: By shrinking tumors, chemotherapy can reduce the pressure tumors exert on surrounding organs and tissues.Stops cancer from spreading: Chemotherapy can help prevent metastasis, which is the spread of cancer to other parts of the body.Works throughout the whole body: Unlike localized treatments, chemotherapy circulates in the bloodstream and can target cancer cells in various parts of the body.

It's important to note that chemotherapy is not drug-free and may have side effects, but advances in targeted therapies have reduced some of these adverse effects.

Chemotherapy benefits include A. decreasing pain, B. shrinking tumors, C. killing cancer cells, D. reducing pressure, G. Stopping cancer from spreading, and H. working throughout the whole body.

These effects help in effective cancer treatment and prevention.

Modern chemotherapy targets specific tumor molecules to reduce side effects.

Chemotherapy has several important benefits in the treatment of cancer. These include:

Decreases pain (A)Shrinks tumors (B)Kills cancer cells (C)Reduces pressure (D)Stops cancer from spreading (G)Works throughout the whole body (H)

Chemotherapy uses special drugs that target rapidly dividing cells, which include cancer cells.

This helps in cancer treatment and prevention.

Though it can harm healthy cells as well, modern chemotherapy aims to minimize these side effects by targeting specific molecules within tumors.

Correct question is: What are the benefits of chemotherapy? Choose all that apply.
A. decreases pain
B. shrinks tumors
C. kills cancer cells
D. reduces pressure
E. provides a drug-free treatment
F. removes tumors
G. stops cancer from spreading
H. works throughout the whole body

Grains, seeds, nuts and root vegetables are examples of _________ carbohydrates and they take a __________ amount of time to break down, allowing one to feel full longer. A. simple...longer B. complex...shorter C. simple...shorter D. complex...longer Please select the best answer from the choices provided. A B C D

Answers

“D” is your answer. Grains and seeds etc are complex and take longer to digest

False is the response. Compared to aerobic activity, anaerobic exercise does cause the body to utilise more oxygen. Anaerobic exercise causes the body to create energy without oxygen, yet oxygen is still required for energy production.

What does anaerobic exercise force to ?

Anaerobic exercise forces the body to create energy without the use of oxygen since the body needs oxygen to convert glucose into energy. Short, intense bursts of exercise, including sprinting, weightlifting, and high-intensity interval training, are typical of anaerobic exercise.

Instead of using oxygen to create energy during these tasks, the body's muscles use stored energy in the form of glycogen and creatine phosphate. This implies that in order to aid in the breakdown of glucose, the body must utilise more oxygen.to restore the energy reserves depleted during anaerobic activity, as well as other substances.

An oxygen debt can also result from anaerobic activity, which occurs when the body needs extra oxygen to break down the lactic acid that accumulates in the muscles during exercise.

To recuperate from the anaerobic workout, the body must pay off this oxygen debt. In order to create energy and recuperate from the activity, the body still needs some extra oxygen even if anaerobic exercise does not require as much oxygen use as aerobic exercise.

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Online multimedia is best designed to appeal to the viewer’s sense of hearing and touch. hearing and taste. sight and touch. sight and hearing.

Answers

Answer:

I believe the answer is sight and hearing.

Explanation:

Online multimedia is taken into our bodies by means of sight and hearing. Hope this is what you're looking for!

Online multimedia is best designed to appeal to the viewer’s sense of sight and hearing. The correct option is D.

What is multimedia?

The use of a computer to existing as well as combine text, graphics, audio, and video with links and tools that allow the user to navigate, interact, create, and communicate is known as multimedia.

In common parlance, multimedia is defined as an electronically delivered combination of media such as video, still images, audio, and text that can be accessed interactively.

Much of the content on the internet today fits this definition, as millions of people understand it.

Multimedia content helps to vary and improve the learning process, resulting in improved knowledge retention. The best online multimedia appeals to the viewer's senses of sight and hearing.

Thus, the correct option is D.

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As Tania reviews the checks for deposit, she realizes that one of the checks collected for a patient’s copayment is postdated two days in advance. The office has a clear policy regarding not accepting postdated checks. The deposit slip, which today lists 18 checks, already includes the postdated check. What should Tania do

Answers

Answer:

Well this is a simple answer in reality.

She should seek the person who deposited it and allow them to know in advanced that the check was post dated two days. The go about explaining how this could effect her and or the office.\

Tania should remove the postdated check from the deposit slip and contact the issuer to request a compliant form of payment, adhering to the office's policy and maintaining financial integrity.

Given the scenario where Tania discovers a postdated check in a set of checks for deposit, and considering the office's clear policy against accepting postdated checks, Tania should rectify the situation in accordance with the policy. It is imperative she removes the postdated check from the deposit slip to maintain the integrity of the financial practices of the office. Tania should then contact the patient or the issuer of the check to inform them of the policy and request either a new check or alternative payment that complies with the office's regulations.

This action aligns with effective office management practices and maintains financial integrity. It also prevents potential cash flow issues due to the delay in the check's clearance and ensures compliance with the organization's established procedures.

How has tobacco use changed over the last few decades? It has doubled about every ten years. It has significantly decreased. It has increased steadily for decades. It has not been closely tracked.

Answers

Answer:

It has significantly decreased:)

Explanation:

Answer:

It has significantly decreased.

Inadequate consumption of which of the following causes the most common nutrient deficiency in young children?
A) calciumB) ironC) folateD) vitamin C

Answers

Answer:

Calcium

Explanation:

Calcium is essential to young children because it directly related to growth and bone density

Sam is a teen strggling with his weight, and he is now considered obese. Which health risks will Sam most likely face now and in the future as an adult?

Answers

He will now likely face problems like, high blood pressure, high cholesterol, breathing issues, and diabetes.

Future problems of obesity as an adult can be heart disease, cancers, heart attacks, and the body could just shut down.

As an adult these symptoms could be more severe.

When you're talking with someone who stutters, the best thing you can do is to tell them to slow down and take their time.

True
False

Answers

Yes! If you are talking to someone you can tell them to slow down that’s not rude to do at all. I also have another tip for people who stutter. Visualize the words you're going to say before you say them. This is hard to master, but it really helps. If you can imagine words, you claim them and it'll be harder for them to slip into a stutter. If you cannot imagine it, they can't be yours. Have a clear mental picture of what you want to say.

Without thinking about what he is doing, every time Jeff eats steak, he covers it with salt. This leads to a diet high in sodium, which increases his chances of getting high blood pressure. Jeff’s behavior and his diet high in sodium are examples of______________.

A health habit
A risk factor
Environmental factors
Both A & B

Answers

Answer:

Explanation:

D both a and b

Final answer:

Jeff's habit of adding excess salt to his steak represents both a health habit and a risk factor for high blood pressure, which is a condition affected by lifestyle and genetic factors.

Explanation:

Jeff’s behavior of covering his steak with salt without thinking, leading to a high sodium diet and increasing his chances of getting high blood pressure, are examples of both a health habit and a risk factor. This behavior is an automatic action that can negatively impact health, thereby making it a health habit. Additionally, since this action contributes to a high-sodium diet, it acts as a risk factor that can potentially lead to health issues such as hypertension, which is influenced by lifestyle choices and genetic factors. Limiting dietary sodium is recommended by medical professionals to help prevent high blood pressure and its associated risks for cardiovascular disease.

Which of the following is an ascomycete fungus associated with bat droppings that can cause a respiratory infection if inhaled? a. Candida albicans b. Histoplasma capsulatum c. Rhizopus stolonifera d. Trichophyton rubrum

Answers

the answer is A. Candid albicans

Which of the following devices might be useful for a child with autism who is completely nonverbal?

microphone
electrolarynx
electronic "talker"
none of these

Answers

Answer:

a electronic talker

Explanation:

aacc device helps the child to communicate

The correct answer is: Electronic talker.

Electronic talkers are used by people who are nonverbal.

While microphones require you to talk into them, people who are nonverbal can't really talk into a microphone.

An electrolarynx is basically another way for someone to talk, which an electrolarynx wouldn't be useful for a child who is completely nonverbal.

You volunteered to be an assistant instructor for a first aid class on Bites, Stings, and Poisonous Hazards. You told the instructor that you would be a couple minutes late, but that you would join him as soon as you could, When you arrive, the instructor is talking about treating something, but you don't know what. He says, "After cleaning the area around the wound, apply constricting bands above and below the site. Continue to monitor lifesaving signs. " In front of the class he asks you if you know what treatment he's talking about. What should you say next?

Answers

Answer:

I'm sorry I just joined the class can you try someone else

Explanation:

If you come into a class late and the teacher asks you a question don't answer it if you don't know the answer and certainly do not guess just ask for them to explain it again or just ask if another person can go

true or false

Words are the most important way we communicate with people.

Answers

Answer:  To me the answer is no, words are not the most important way we communicate.

Explanation:  I think that the most important way we communicate is body language. I can say that I am fine when I have tears streaming down my face. So no words are not the most important way we communicate.

Answer:

True

Explanation:

Not only is it the most important it is also the most basic

A nonwillful violation of the Patient's Bill of Rights could result in a fine up to_____. $100 $500 $1,000 $5,000

Answers

The amount of the fine will depend on the nature and severity of the violation. In the case of a nonwillful violation of the Patient's Bill of Rights, the fine may be up to $1000.

A nonwillful violation of the Patient's Bill of Rights could result in a fine up to $1000. The Patient's Bill of Rights is a set of legal protections and guidelines that detail the rights of patients in healthcare settings. These rights include, but are not limited to, the right to privacy, the right to receive information about their medical conditions and treatment options, the right to make decisions about their own healthcare, and the right to receive care that is free from discrimination and abuse.A nonwillful violation of these rights occurs when a healthcare provider unintentionally violates one or more of these rights. If such a violation occurs, the healthcare provider or facility may be subject to fines or other penalties. The amount of the fine will depend on the nature and severity of the violation. In the case of a nonwillful violation of the Patient's Bill of Rights, the fine may be up to $1000.

What is the best, most accurate description for "agonal respirations"?You notice that a 6 month old infant is not awake, not moving, and not breathing normally. The infant's skin is blue. What would make you suspect the infant is unconscious from choking?

Answers

Answer:

jesus

Explanation:

The best, most accurate description for "agonal respirations" is that they are abnormal, gasping, and often ineffective breaths that occur in individuals who are in the final stages of life or experiencing a severe medical emergency.

Agonal respirations are a reflexive response of the body to a critically low level of oxygen and are not considered normal breathing. They are typically irregular, slow, and may include gasps or long pauses between breaths.

If you notice a 6-month-old infant who is not awake, not moving, and not breathing normally, and the infant's skin is blue (a condition known as cyanosis), you should suspect that the infant is unconscious from choking. Cyanosis is an indication of inadequate oxygen levels in the blood, and in a situation where the infant is not breathing normally, choking is a critical concern.

Choking occurs when an object becomes lodged in the airway, obstructing the flow of air into the lungs. In infants, choking can be caused by small objects, food, or even mucus. It is a life-threatening emergency that requires immediate action.

It's essential to know how to respond to a choking emergency, especially when caring for infants and young children. Consider taking a certified CPR and first aid course to learn the appropriate techniques for handling such situations.

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A health care worker needs to know the last time a patient ate. He or she sees the patient's spouse so he or she asks the spouse the question and records the information in the chart. This is an example of
a. Effective communication because the worker immediately recorded the results
b. Ineffective communication because the health care worker did not give the spouse enough time to ask questions and explain
C. Effective communication because he or she received and answer in a timely manner
d. Ineffective communication because he or she did not go directly to the source

Answers

Answer: D, ineffective communication because he or she didn't go directly to the source.

Explanation: The health care worker should have asked the patient him/herself first. The spouse was not a reliable source because there is the possibility that the patient ate something without the wife/husband's knowledge.

Hope this helps,

Lacey :)

Answer:

D) Ineffective communication because he or she did not go directly to the source

Explanation:

How to check your cervix for dilation at home

Answers

You can try sitting on the toilet with one foot up on the seat to see if that helps you reach it. Some women ask partners to try checking the cervix and find that’s easier.
Final answer:

Though understanding cervical dilation is insightful, home checks are dangerous due to infection risk. Dilation to around 10 cm is key for vaginal birth. Dilation length varies but generally lasts 6-12 hours.

Explanation:

It's important to know that checking your cervix at home for cervical dilation is not recommended due to the risk of introducing infection. However, understanding the process can provide some helpful insights. Before vaginal birth can occur, the cervix needs to dilate to about 10 cm in diameter, which is wide enough to deliver the baby's head.

During the first stage of labor, the cervix thins, and during the second stage, it is dilated to around 10 cm. The baby is then expelled from the uterus. The final stage involves the passage of the placenta after the baby has been born.

The duration of the dilation stage varies but typically takes 6-12 hours. It's the longest phase of labor. Remember, it's crucial to have a healthcare professional, like a midwife or doctor, evaluate cervical dilation to accurately gauge labor progression.

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Which of the following statements is not true about applied behavioral analysis (ABA)?

It's a one-on-one therapy.
It's usually done in a group.
It's usually done in the patient's home.
It's unproven.

Answers

Answer:

b. it's usually done in a group

The statement 'It's unproven' is not true about applied behavioral analysis (ABA); ABA is an evidence-based approach for autism and other developmental disorders, emphasizing positive reinforcement and can be conducted in various settings including one-on-one and group therapy at home.

ABA is a well-researched and evidence-based approach used to treat individuals with autism spectrum disorder and other developmental disabilities. ABA therapy can take place in various settings, including one-on-one therapy, group therapy, and in the patient's home. The therapy focuses on increasing beneficial behaviors and reducing harmful ones through observation and systematic intervention. While it has been criticized for its use of punishment in the past, modern ABA emphasizes positive reinforcement over punishment. More humane and effective approaches, such as pivotal response treatment, are being utilized in contemporary practice, showing more rapid improvements in communication in children with ASD. Despite the advancements, the effectiveness and methods of ABA continue to evolve with ongoing research and clinical practice.

How long does it take for eye dilation to wear off

Answers

anywhere from 4 to 24 hrs depending on the strength of the eye drop used for dilation.

You are treating a seven-year-old girl who has a persistent cough, a low-grade fever (38.5 Celsius), and general malaise. Her mother insists it can (and should) be treated with antibiotics, since her friend's daughter had the same symptoms last month and received antibiotic treatment. You, however, suspect that it may be a viral disease. You suggest that using an antibiotic may not be the best course of action and try to convince the mother that using an antibiotic will not effectively treat the daughter's condition. The mother says that she would use the antibiotic that her friend's daughter received "just to make sure" that her own daughter will not get worse. What you should do next?

Answers

Hi

Answer:

- Antibiotics are ineffective against viral infections which represent the majority of colds, tonsillitis and ear infections. They are therefore often useless.

- Benign infections do not justify taking antibiotics.

- Antibiotics have no direct effect on fever or pain.

- Self-medication is a practice, absolutely forbidden.

- Antibiotics are not innocuous drugs: they sometimes have side effects (allergic reactions, nausea, diarrhea, etc.) that can be serious.

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The information contained in the table could be used _______________________. What is the tangent ratio for B Wh ch of the following statements best describes the effect of climate on biome distribution? a.Average annual temperature and precipitation are sufficient to predict which biome will be found in an area b.Seasonal fluctuation of temperature is not a limiting factor in biome distribution if areas have the same annual temperature and precipitation means c.The average climate and pattern of climate are important in determining biome distribution d.Temperate forests and grasslands are different biomes because they receive a different quality and quantity of sunlight, even though they have essentially the same annual temperature and precipitation Why did Japanese soldiers kill so many civilians in Nanking, China? 30 points and brainliest!! \Part A: A number is increased by 54. The sum is then divided by 9. The result is 21.Write an equation to represent the description above. Use n for the number.Equation: _____________________________Part B: Find the value of n. Show your work.n = __________________________________Part C: Choose two numbers and use them to do the following:Write an equation that shows your first number added to n equal to your second number. Solve your equation for n.Equation: _____________________________Solution: ______________ John wants to deposit $1000 as a principle amount, with an interest of 4% compounded quarterly. Cayden wants to deposit $1000 as the principle amount, with an interest of 3% compounded monthly. Explain which method results in more money after 5 years. Show all work. Which of the following refers to the process of getting detailed information about jobs?A. Job rotationB. Supply chain managementC. Job analysisD. Policy creationE. Job orientation What is the primary energy source tht drives all weather events, including precipitation,hurrcanes and tornados Which line from the song "The Lonesome Death of Hattie Carroll" best supports the inference that Hattie Carroll was not a wealthy woman?"William Zanzinger killed poor Hattie Carroll""And never sat once at the head of the table""And she never done nothing to William Zanzinger""She was fifty-one years old and gave birth to ten children" About how many plastic grocery bags do americans throw away each year? please help me figure out the radius A parking lot has sixty-one parking spaces numbered from 1 to 61. There are no cars in the parking lot when Jillian pulls in and randomly parks. What is the probability that the number on the parking space where she parks is greater than or equal to 22?A. 61/21B. 40/61 C. 61/40D. 21/61 which line supports the infernce that oedipus is a proud man?i would be a hard hearted man indeedi shall assist uou willingly in every waywhy are you sitting here with wreathed sticks in supplication to mei oedipus whose fame all men acknowledge In the context of foreign market entry, ________ requires no equity investment and thus has a low risk, low rate of return, and little control.a.a joint ventureb.franchisingc.licensingd.indirect exportinge.a strategic alliance Simplify ( 2 + sqrt-3 / 2) (2 - sqrt-3 / 2) Which part of a mushroom can you see above the ground? (WILL MARK BRAINLIEST, I NEED HELP URGENTLY)What is the DNA Sequence, Resulting mRNA sequence, Complementary tRNA sequence, and Resulting Amino Acid sequence The angles of a pentagon are x, x 5, x + 10, 2x + 15and 2x + 30. Find all the angles. What type of reaction takes place when fluorine reacts with sodium bromide? In rabbits. brown fur B is dominant to white fur (b) and short fur (H) is dominant to long fur (h).A brown. long-furred rabbit (Bbhh) is crossed with a white, short-furred rabbit (bbHh). Both the Band H traitsassort independently from one anotherWhat percentage of the offspring will be brown with long fur? Steam Workshop Downloader