The aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen and lower half of the body. The curved artery can be approximated as a semicircular arch whose diameter is 6.1 cm. If blood flows through the aortic arch at a speed of 0.27 m/s, what is the magnitude (in m/s2) of the blood's centripetal acceleration?
Answer:
2.39m/s2
Explanation:
To get the magnitude of the blood's centripetal acceleration in the aortic arch, we use
a = (V^2) / d
where: a = aortic arch's blood's centripetal acceleration
V = the speed of the blood
d = diameter of the aorta
Since it is semicircular of the arch, so we use the radius
So, r = d / 2
V = 0.27 m/s
r = 6.1 cm / 2 = 3.05 cm
convert cm to m (100cm = 1m)
3.05cm / 100cm = 0.0305 m
a = (0.27 m/s)^2 / 0.0305 m
= 0.0729m/s / 0.0305 m
= 2.39m/s2
Jeb was involved in a skateboarding incident in which he hit his head on the pavement. He was wearing a helmet, but he lost consciousness for about two minutes. When he came to, his vision was blurred, and he was slurring his speech. Which facility should he visit to treat his injuries?
Answer:
Emergency room
Explanation:
Because he needs care right away
Answer:
Emergency room
Explanation:
1. A cell does not need to use energy during
A: active transport
B:exocytosis
C:diffusion
D: endocytosis
Answer:
C. diffusion
Explanation: Diffusion is a passive transport process of transport and does not require energy. Active transport requires energy.
1.AN EXAMPLE OF A LIGHT INTENSITY ACTIVITY ISSingle choice.
WALKING BRISKLY
SWIMMING LAPS
GOLFING WITH A CART
2.AN EXAMPLE OF A VIGOROUS ACTIVITY ISSingle choice.
LIGHT STRETCHING
RUNNING
3.AN EXAMPLE OF MODERATE INTENSITY ACTIVITY ISSingle choice.
DOUBLES TENNIS
LIGHT STRETCHING
4.WHAT PERCENT OF AMERICANS ARE OVERWEIGHT OR OBESE?Single choice.
10%
30%
65%
90%
5.THE RECOMMENDED AMOUNT OF MODERATE INTENSITY PHYSICAL ACTIVITY FOR YOUNG PEOPLE ISSingle choice.
30 MINUTES PER DAY
60 MINUTES MOST DAYS OF THE WEEK
2 HOURS A WEEK
6.PHYSICAL ACTIVITY CAN HELP YOUSingle choice.
LOOK BETTER
RELIEVE TENSION
CONTROL YOUR APPETITE
ALL OF THE ABOVE
7.WHICH IS LINKED TO OBESITY AND OVERWEIGHT?Single choice.Immersive Reader
INCREASE STRAIN ON MUSCLES AND JOINTS
POOR SELF IMAGE
Option 3
INCREASE RISK OF HIGH BLOOD PRESSURE AND DIABETES
ALL OF THE ABOVE
Answer:
43
Explanation:
Telemedicine involves the use of video, audio and computers to provide health care
True or False
Which factor increases the risks associated with diving into water?
A. Diving during the day
B. Not seeing the bottom
C. Being able to swim
D. Having a friend present
If you or your partner struggled with infertility, how do you think you would feel?
Answer: this question is opinionated so I'm just winging it for you-
I would not mind because I don't really want to have kids. If they were upset about it and it was affecting their mental health, I would then in that case feel empathy towards their pain and support them the best I could.
what is the major difference between oxygen and carbon dioxide as exist in your body
A. your body needs oxygen to function carbon dioxide is a waste gas
B. your body needs carbon dioxide to function oxygen is a waste gas
C. oxygen exist as a gas in your lungs carbon dioxide exists as a liquid
D.Carbon dioxide exist as a gas in your lungs oxygen exists as a liquid
Answer:
A. Your body needs oxygen to function carbon dioxide is a waste gas
During respiration, person takes in oxygen and removes out carbon dioxide. Person's body needs oxygen to function carbon dioxide is a waste gas.
What is respiration?Respiration is the process of taking in oxygen, using it for releasing energy and throwing out carbon dioxide. It can be aerobic or anaerobic.
Respiration involves following steps:
Taking in oxygen through nostrils for various functions.Exchange of gases from alveoli to blood.Transport of gases with the help of blood vessels.Exchange of gases between body cells and blood.Cellular respiration.The carbon dioxide is then released to the environment as waste.
Thus, the correct option is A.
For more information about respiration, visit:
https://brainly.com/question/11852130
List the six different health risk behaviors
Answer:
Pyshical inactivity, unhealthy diet, tobacco use, drug abuse, unprotected sexual practices, and harmful use of alcohol.
I NEED HELP IMMEDIATELY
Features common to all socities
A. Material culture
B. Cultural Universals
C.Non material culture
D. Ethnocentrism
(B) Cultural Universals
Draw or write
your own slogan
or personal
meaning when it
comes to
"Consent and
Respect and No
means No, but
you still need a
Yes!"
Answer:
“Follow the Fuhrer! … wait no, not that Fuhrer.”
“Fuhrer fights for you! Yes, that includes people of the Jewish faith.”
“Note the distinct lack of Hitler-stache!”
“Look, people. This is ridiculous. It’s a last name - he is neither related to Adolf Hitler nor affiliated with the Nazi Party in any way. Get over it.”
“Please stop throwing things at him.”
Explanation:
4. If you are trying to help a friend with a serious problem, what is the benefit of talking to an adult?
Answer:
Because, as an adult, they might have more experience dealing with that problem or they might know who to call or what to do. As a teenager, you have a very limited and short experience with the world and you might not always have the right idea about how to do something or any ideas at all. Plus, that's just what adults do.
Raw chicken breasts are left out at room temperature on a prep table. In this scenario, what is the risk that could cause a foodborne illness?
Poor personal hygiene
time-temperature abuse
cross-contamination
poor cleaning and sanitizing
Answer:
The correct answer is time-temperature abuse.
Explanation:
Answer:
Time-temperature abuse
Explanation:
Human body cells have _____.
23 chromosomes
16 chromosomes
20 chromosomes
46 chromosomes
Answer: 46
Explanation:
✅ 46 chromosomes
✧･ﾟ: *✧･ﾟ:* Explanation: *:･ﾟ✧*:･ﾟ✧
❗ You get 23 chromosomes from each of your parents 23 + 23 = 46 eventually as you grow up they reproduce and makes a new Human with 46 chromosomes!
~ ₕₒₚₑ ₜₕᵢₛ ₕₑₗₚₛ! :₎ ♡
~
Write any 5 factors which affect mortality rate and describe any two
Answer: age, sex, diseases, heredity, nutritional level, health facility and services and health education.
Explanation:
Age: Mortality rates are different in different age group. Mortality is high among children and old people but it is low among youths.
Sex: Studies show that women are more likely to outlive men, this is also cuased because the mortality rate of baby boys is higher than female infants.
Which of the following statements is true? A private doctor’s office is usually larger than a community medical clinic. Private clinics are where you most often see family doctors or nurse practitioners. A private clinic offers more services than a community medical clinic. A private clinic usually has X-ray, rehabilitation, and laboratory services.
Answer:
B
Explanation:
I answered it right on edge
What is the best way to get info about the coronavirus
Answer:
Watching the news and reading the CDC.(Center for Disease Control).
Explanation:
Use the RACES Model above to tell what you would do if you had a friend who was struggling with their weight, what are three healthy weight loss strategies that you would suggest, AND why?
Answer:
Explanation:
Race model is used to help develop a strategic PR plan. It is an aconynm standing for Research, Action plan, Communication and Evaluation.
Which of the following are considered links in the chain of infection? Check all that apply.
disinfection
medical asepsis
portal of entry
reservoir
Answer:
disinfection
Explanation:
plz mark me the brainliest!
Answer:Portal of entry & Resevoir
Explanation:
True or False:
The SET is usually the second pass in the game of volleyball?
Answer: true
Explanation: The player who passes the ball is called the “passer”. Usually a pass is made with a player's forearms but can also be made overhead with two open hands. Set- The second contact (after a pass or dig) is considered a “set”.
Answer:
true
Explanation:
Hope this helps
Something I wish my teacher knew about me..
Answer:
Anything semi-personal that would give your teacher a sense of your learning style and personal needs.
Explanation:
Your teacher is looking for something they should know about you in order to help you best. This also helps them get an idea of your personality, and learning style. I suggest keeping it semi-personal, especially if you have never worked with this teacher before, or are working with them for the rest of the year, because you might want to keep some things to yourself. I hope this helps!
Select the correct answer from [the/each] drop-down menu.
Complete the following paragraph.
Ben is on a diet. When he wants to eat beef at a restaurant, he usually orders a beef roast because it is made up of a (shank, loin, round) cut and is (fatty, lean, oily).
Round, and lean are the answers
Answer:
round and lean
Explanation:
i got it right on edmentum
*
Depression is
an occasional sad mood
a rare illness in teens
O a serious condition that may require medical help
an untreatable illness
Answer:
a serious condition that may require medical help
Explanation:
a serious condition that may require medical help
Ill give you 20 + brainliest. points if you do this. (Watch the Bozeman science molecular biology video, complete the table as you watch)
Answer:
what is the source of the chemical :bacteria/bacterial cells ?
why?:if a virus tries to attack the bacteria ,it uses restriction enzymes to fight it off .
.cleave foreign DNA,this eliminating infectious organisms..
EcoR1 restriction site
it is also part of the restriction modification system.In molecular biology it is used as a restriction enzyme .
why do we sometimes use multiple restriction enzymes?
..these enzymes cut both strand of the target DNA at different spots creating 3'-5' overhangs of 1 to 4 nucleotides.
to be able to clone a DNA insert into a cloning or expression vector ,both have to be treated with two restriction enzymes that create compatible ends.
what is the role of each of these chemicals in copying DNA?
primer
:is a short nucleic acid sequence that provides a starting point for DNA synthesis .this synthesis of a primer is necessary because the enzymes that synthesize DNA ,which are called DNA poly merases ,can only attack new DNA nucleotides to an existing strand of nucleotides .
tag polymerase:
Due to its key role in synthesizing and amplifying new strands of DNA ,Tag DNA Polymerase is essential to poly chain reaction PCR.
like other DNA polymerase can only produce DNA if it has primer,a short sequences of 20 nucloetides that provide a starting point for DNA synthesis.
nucleotides:
DNA is made up of a double helix of two complementary strands ,during replication ,these strands are separated .most prominently,DNA polymerase sythesizes the new strands by adding nucleotides that complement each strand .
DNA replication occurs during the S-Stage of interphase.
methods the separate pieces of DNA
.Gel electrophoresis is a technigue used to separate DNA fragments according to the size .
what pulls the pieces of DNA ?
DNA samples are loaded into wells at one end of a gel ,and an electric current is applied to pull them through gel.
why?
because all DNA fragments have the same amount of change per mass ,small fragments move through the gel.
The ozone layer sits near the top of Earth's atmosphere and protects us from the sun's harmful ultraviolet rays. But ozone is dangerous when it's closer to ground level. Which statement is true about ground-level ozone?
A.
It contributes to nutrient pollution.
B.
It directly causes acid rain.
C.
It is the main component of smog.
Answer:
Hey!
Your answer is C. It is the main component of Smog
Explanation:
Its C because Smog is LOW LEVEL OZONE mixed up with particulate matter (pollution in other words), That's what gives it its distinct smell...it also contains Sulphur Dioxide, Nitrogen Oxides and Carbon Monoxide.
I HOPE THIS HELPED YOU! :D
The ozone layer is the main component of smog.
The ozone layer is a part of the atmosphere that protects the earth from the rays of the sun. The energy emitted from the sun is very high and therefore it is important for the earth to be protected from the rays so all living things on earth would not get hurt in any way. The ozone layer absorbs the ultra radiation that comes from the sun.
The ultra radiation from the sun is capable of destroying the DNA strands, this can cause cancer in the human body. It can also cause a lot of skin problems. The ozone layer acts as a shield that protects the earth. The ozone layer which is present and can be found at the ground level is a dangerous air pollutant that is harmful to the body, this is because its main component is SMOG. SMOG is a type of air pollutant that causes poor visibility.
Link to related brainly question
https://brainly.com/question/18673899
**I’m in a ditch of confusion**
How does having a list help save money at the grocery store?
What other strategies can you use to save money at the grocery store?
*Any help is very much appreciated!*
Answer
Because if u forget something that u want in the grocery store u could take a list and u wont forget
Explanation
When is the best time to take a resting heart rate?
A. One hour after vigorous exercise.
B. One hour after eating a meal.
C. Just after walking in the morning.
D. Just before going to bed at night.
(Apex)
Answer:
C Is the answer
Explanation:
because after the walk you are resting so that's when you can get the heart rate
Why is Trans fats unhealthy for you?
Answer:
they can affect your cholesterol levels in negative ways and, increase your risk for heart disease, stroke and possibly other diseases.
Explanation:
Hope this helps :)
Finding another person with your exact fingerprints is:
A. Unlikely
B. Impossible
C. Likely
D. Guaranteed
What is the answer?
Finding two person with your exact fingerprints is: B. Impossible
Fingerprint are very tiny lines that is found on human thumbs and toes.
Every human is created with a unique fingerprints which means that fingerprints of every human are not the same.
Example Investigators of a crimes scenes often look for fingerprints in a crime scene as this will help to identify the person who committed the crime because every human has a unique and different finger prints
Finding two or more people with the identical or exact fingerprints is impossible based on the fact that two people cannot have the same fingerprints and no research has ever show that two people have the them same fingerprints.
Inconclusion Finding another person with your exact fingerprints is: B. Impossible.
Learn more here:
https://brainly.com/question/5628467
Different forms of exercise improve different aspects of health-related fitness.
Please select the best answer from the choices provided.
[]T
[]F
Answer:
ture
Explanation:
hope it is right but not sure
Answer:
Yeah it's True
Explanation:
am doing some work too here's some proof to question (I wish it was summer vacation again.) :( <sad face