an unknown fiber sample is found at a crime scene forensic scientist measure it's index of refraction and obtain a value of 1.54 a suspect jacket was made of Dacron polyester his jeans were made of cotton his shirt was made of Dacron polyester and his tie was made of rayon which piece of clothing may match the fiber at the crime scene (A)Jeans (B) Jacket (C) Tie (D) Shirt
Answers
The suspect's shirt may match the fiber found at the crime scene.
Explanation:The index of refraction of the unknown fiber sample is 1.54. To determine which piece of clothing may match the fiber at the crime scene, we need to compare the index of refraction of the fiber with the known materials. The suspect's jacket is made of Dacron polyester, which has an index of refraction of 1.52. The suspect's jeans are made of cotton, which has an index of refraction around 1.52-1.55. The suspect's shirt is made of Dacron polyester, which has the same index of refraction as the fiber at the crime scene. Therefore, the shirt may match the fiber found at the crime scene.
The piece of clothing may match the fiber at the crime scene is (C) Tie
The refractive index of the fiber found at the crime scene matches the refractive index of rayon. Therefore, the most likely piece of clothing that the fiber came from is the suspect's tie. This means that the fiber at the crime scene is most likely from a Dacron polyester jacket.
The index of refraction of cotton is 1.52, which is slightly lower than the index of refraction of the unknown fiber. This means that the fiber at the crime scene is not from the suspect's jeans.
Therefore, the only piece of clothing that the fiber at the crime scene could be from is the suspect's Tie.
See text below
An unknown fiber sample is found at a crime scene. Forensic scientists measure its index of refraction and obtain a value of 1.54. A suspect's jacket was made of Dacron polyester, his jeans were made of cotton, his shirt was made of Dacron polyester, and his tie was made of rayon. Which piece of clothing may match the fiber at the crime scene? (A) Jeans (B) Jacket (C) Tie (D) Shirt.
Refractive Indices of Some Synthetic Fibers:
Fiber Refractive Index
Dacron polyester Fiber 1.72
Rayon 1.54
Acrylic 1.52
Nylon 1.52
acetate 1.48
Related Questions
When preparing food, it is especially important to keep _______________ out of the danger zone because bacteria can grow rapidly.
Answers
When preparing food, it is especially important to keep the temperature out of the danger zone because bacteria can grow rapidly in this temperature range.
Bacteria grow at very high speeds in the range of the danger zone, which is the range of temperatures between 40° F and 140° F. Leaving food out at room temperature for a long time (more than 1-2 hours) can lead to some bacteria to grow to levels which are dangerous.
Hope this helps:)
Answer:
chicken
Explanation:
Which step would a state health department most likely take to reduce lead exposure?
Answers
Answer:
putting more regulations on Oil
Explanation:
If we were to reduce the amount of led in oil we would have less exposure.
Answer:
A
Explanation:
When reviewing the results of your fitness evaluation, it's important to look for areas that can be improved. Please select the best answer from the choices provided. T F
Answers
Hi !
When reviewing the results of your fitness evaluation, it's important to look for areas that can be improved. Please select the best answer from the choices provided.
- true
According to MyPlate, you should eat approximately two and a half cups of vegetables per day.
Answers
Answer:
True.
Explanation:
This sentence is correct :)
true !!! eat you vegs so you won’t take meds lol
Describe the bargaining stage of grieving. Provide an example of what this might look like for someone who has lost something very meaningful to them.
Answers
Answer:
The negotiation stage is characterized because the person thinks about how he could have avoided the fact. Usually have feelings of guilt
Explanation:
.The 5 stages of mourning
The psychiatrist Elisabeth Kübler-Ross developed 1969 what we call the theory of the 5 phases of mourning,
1. Stage of denial
2. Stage of anger
3. Stage of negotiation
4. Stage of depression
5. Stage of acceptance
The negotiation stage is one that is characterized by the subject focuses on what could have been done to avoid this tragic event or unwanted separation. It is very likely that individuals feel guilt or try to blame others for what happened.
A person who is going through such a situation usually wonders, and if he had done this? If he had listened to another person ?, and can be found guilty or looking guilty in others.
What best describes how the structure of the brain relates to different body functions?
Answers
Answer:
so the structure of the brain relates to a system called nervous system. For example when you touch a hot pan then you quickly remove your hand from the pan because the nervous system is sending a signal to your brain.
Explanation:
Answer:
i think it's this!
: The brain receives information through our five senses: sight, smell, touch, taste, and hearing - often many at one time. It assembles the messages in a way that has meaning for us, and can store that information in our memory. The brain controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body.
Explanation:
Locomotor movements are that..
you use only when your you are practicing them
you use to move from one place to another
you never use
Answers
Locomotor movements are actions that involve traveling from one location to another.
Examples of these include walking, running, jumping, hopping, and skipping. These movements are in contrast to non-locomotor movements, which are performed in place and include actions such as stretching, bending, twisting, and shaking. Locomotion is an essential aspect of the musculoskeletal system and is distinct from mere movement, because it requires coordinated muscle activity to propel the body through space.
field hockey: what should a player do when it is impossible for him or her to attempt a goal
Answers
Answer:
The correct answer would be, Restrict the other team from doing goal.
Explanation:
Hockey is a game in which there are two teams, each of which consists of 11 players. Both teams have an area where teams have to mark goals. Both teams have their goal keepers in that area. Players play with each other by passing ball to other players of their own team and making it to the goal area of the other team to hit a goal to get a point. So if it seems impossible for a player to attempt a goal then he should at once change his strategy and has to play a game in which he just restricts the players of the other team from scoring a goal. In this way, if he is not able to mark a goal, the other team will also not get a chance to attempt the goal.
The manager is responsible for training you about food safety in your job duties. these duties include preventing food borne illness by:
Answers
Wearing proper equipment etc.
gloves
By washing your hands before and after you touch the food, wear gloves, and don’t touch your face until you have washed your hands.
Which can cause a stress fracture?
a.the overuse of a bone
b.tendonitis
c.a muscle strain
d.a joint sprain
Answers
the overuse of the bone
The overuse of a bone can cause a stress fracture.
How is a stress fracture caused?
Stress fractures are tiny cracks in a bone. They're caused by repetitive force, often from overuse such as repeatedly jumping up and down or running long distances.
Are stress fractures serious?Stress fractures may not be as serious or painful as other broken bones, but that doesn't mean you should ignore them.
Hence , A is correct option
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Morgan Smith had an acute myocardial infarction, commonly to as a heart attack
Answers
Answer:
what is the question here?
Explanation:
Hello. This question is incomplete. The full question is:
" Morgan Smith had an acute myocardial infarction, commonly to as _____.
heart attack"
Answer:
Morgan Smith had an acute myocardial infarction, commonly to as a heart attack
Explanation:
Popularly known as heart attack, it is a process of tissue death (necrosis) of part of the heart muscle due to lack of oxygen, due to obstruction of the coronary artery.
The obstruction occurs in general, by the formation of a clot on an area previously compromised by atherosclerosis (fatty plaque), causing the blood vessels in the heart to narrow.
What do you do when you find a random stranger in labor?
A. Call the nearest hospital
B. Drive her to the nearest hospital
C. Leave her alone
Answers
Answer:
It would make sense to do B.
Explanation:
Brainiest please! <:)
B. Instantly drive her there, but call the hospital all and let them know you are coming. An ambulance will take longer to get to her and back to the hospital than you would take going directly to the hospital.
A contains all the information necessary to build a unique human being.
Answers
Answer:
A human being is a complex and multifaceted individual, shaped by a variety of factors and characteristics that contribute to their uniqueness. Just as a vlog can incorporate different text types to create engaging content, various elements come together to form a complete individual.
Explanation:
These factors contribute to the complexity and uniqueness of each person:
1. Genetics:
- Genetic traits influence physical characteristics and certain personality traits inherited from family members.
2. Environment:
- Family dynamics, cultural influences, and surroundings are crucial in shaping beliefs and behaviors.
3. Experiences:
- Life events like relationships and challenges shape an individual's character and perspective.
4. Education:
- Formal and informal learning experiences contribute to intellectual growth and skills development.
5. Emotions and Relationships:
- Emotional intelligence and interpersonal connections impact social skills and personal development.
6. Values and Beliefs:
- Personal values and beliefs guide decision-making and behavior.
7. Goals and Aspirations:
- Ambitions and aspirations drive personal growth and fulfillment.
8. Motivations and Resilience:
- Internal motivations and resilience help individuals overcome challenges and pursue their goals.
These factors interact and combine to shape the unique qualities, perspectives, and characteristics of each individual. By understanding the influence of genetics, environment, experiences, education, emotions, values, goals, and aspirations, we gain insight into the diverse and intricate nature of human beings.
Which of the following people is most likely to be suffering from depression ?
violet is very talented and very competitive tennis player. she loses her temper fast and sulks for days whenever she loses a match .
Sammy doesn’t especially like going to parties or talking in the phone with his friends. He prefers reading in his room and playing with his dog .
Natalie hasn’t made friends at her new school after she moved because her parents got divorced. She spends alot of her in her room and has trouble studying .
Answers
____________________________________________________
Answer:
Your answer would be "C). Natalie hasn’t made friends at her new school after she moved because her parents got divorced. She spends a lot of her in her room and has trouble studying."
____________________________________________________
Explanation:
The reason why this answer choice "C). Natalie hasn’t made friends at her new school after she moved because her parents got divorced. She spends a lot of her in her room and has trouble studying" would be the correct answer is because she is experiencing a rough time that causing her to bee less social.
Since her parents got divorced and hasn't made friends at her new school, she is less social and stays in her room, due to the fact that she has no one to talk to. Depression could really make someone struggle when studying because the thing that's causing the depression keeps running through their mind. When someone likes to stay in their room and doesn't want to be social with anyone, that is probably due to depression, and that fits the scenario in this answer choice. This is the reason why this answer choice would be correct.
____________________________________________________
Why the other answer choices are incorrect:
Answer choice "violet is very talented and very competitive tennis player. she loses her temper fast and sulks for days whenever she loses a match ." is incorrect because:
Even though she sulks, meaning that she becomes very quiet or bad tempered for a couple of days, that is not causing her to feel sad in the long run. She only sulks for a couple of days, but not for a long time. Her sadness and high temper after losing a tennis game would be only temporary, and she would gain her joy back eventually. This is the reason why this answer choice would be incorrect.
Answer choice "Sammy doesn’t especially like going to parties or talking in the phone with his friends. He prefers reading in his room and playing with his dog" is incorrect because:
The thing that Sammy does is a choice that he made for himself. There's nothing wrong with not going to parties or talking with friends on the phone, he chose not to do that and is not sad about it. His preferences of reading in his room and playing with his dog is also a choice that he made. There is nothing sad going on in Sammy's life, in which his preferences is possibly making him happy and not depressed. This is the reason why this answer choice would be incorrect.
____________________________________________________
Answer:
Natalie because she is in a new place with no friends and her parents just got a divorce so big changes with no friends to help her through it.
Explanation:
Which of the following stretches can be harmful because they may far exceed the stretchable limits of the tissue involved and caused injury
1. Ballistic
2. Dynamic
3. Isostatic
4. Static
Answers
Answer:
ballistic
Explanation:
it is a dangerous form of stretching
Ballistic can be dangerous because they may far exceed the stretchable limits of the tissue concerned and caused injury.
What is Ballistic stretching?Stretching exists a form of physical exercise in which a precise muscle or tendon exists deliberately flexed or stretched in order to enhance the muscle's felt elasticity and acquire comfortable muscle tone. Ballistic stretching exercise stands for a warm-up stretch that preps your muscles for a workout. Stretches with fast and sudden movements assist improve flexibility.
A simple example of ballistic stretch exists rolling down and bouncing up and down, attempting to touch your toe.
The correct answer is option A.
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About one-third of the babies born to mother with __ will also have the disease.
Answers
The one disease where your lungs hurt when you run, where u cant breath, man i cant remember wut it was called rip
the body can use cholesterol to make?
Answers
Vitamin D!!! cholesterol production is so important that your liver and intestines make about 80% of the cholesterol you need to stay healthy ;)
the body can use cholesterol to make vitamin D :)
Which of the following breaks a safety rule?
1. Going to the gym while you have a contagious condition like the flu or pinkeye
2. Ignore people who have been waiting to use your basketball court
3. Talking on the phone or texting during a yoga class
4. Walking out of a fairway sand trap without raking your foot prints
Answers
Answer:
most likely 1 or 3
Explanation:
i hope this helps
Going to the gym while having a contagious condition like the flu or pinkeye breaks a safety rule because it poses a risk to the health and safety of others.
Explanation:Based on the context provided, the option that breaks a safety rule is: 1. Going to the gym while you have a contagious condition like the flu or pinkeye. Health and safety guidelines for gyms typically recommend that individuals with contagious illnesses should refrain from going to the gym until they are no longer contagious. This is to prevent the spread of diseases and to maintain a healthy environment for all gym-goers. The rest of options 2, 3, and 4 may be considered inconsiderate or inappropriate, but they do not pose a direct risk to the physical health and safety of others.
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176) Which of the following statements are true
a) Moodiness is a cognitive symptom of stress
b) Moodiness is an emotional symptom of stress
c) Poor judgment is an emotional symptom of stress
d) Agitation is cognitive symptom of stress
Answers
The statement is true Poor judgment is an emotional symptom of stress. Thus, option C is correct.
What is the way to overcome from Emotional symptoms of stress?Perfectionism, in the term of psychology, hass an extensive character fashion characterized by that means of someone's concern with the striving for the flawlessness and perfection and it has the accompanied by the crucial self-critiques and worries just regarding others' evaluations.
The 3 styles of the perfectionism as well they are socially prescribed perfectionists, along with the different-orientated perfectionists, and self-orientated perfectionists. Suppose that the person with the perfectionist persona strives for the flawlessness. This often the that entails having a fixation on the imperfections, trying just to manage situations, working hard for being important.
Self-oriented as well as the perfectionism changed into the being described as the attaching irrational importance to being ideal, having the unrealistic expectancies of 1's self, and keeping punitive self-opinions.
Therefore, option C is correct.
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Your respiratory system consists of the following five organs
A.) nose, mouth, larynx, pharynx, lungs
B.) brain, lungs, heart, blood vessels, arteries
C.) nose, mouth, kidneys, liver, heart
D.) none of the above
Answers
Hi !
Answer:
Your respiratory system consists of the following five organs
A.) nose, mouth, larynx, pharynx, lungs
janet is suddenly unwell after eating a handful of peanuts. she is experiencing shortness of breath l, wheezing and inflamed eyes and nose. janet starts to look panicky. what disorder is janet experiencing
Answers
Answer:
Anaphylactic shock is the correct answer.
Explanation:
Very bad allergic reaction.
the PPC shifts to the right
the PPC shifts to the left
a point on the original PPC
a point inside the PPC
a point outside the PPC
A manufacturing unit uses all its
resources efficiently.
Andrew has 5 hours to complete his
homework but uses only 3 hours, so
he doesn't complete it.
28
A country acquires part of its neighboring
country.
Answers
Image of the answer
The statements you provided involve concepts related to the Production Possibility Curve (PPC), resource efficiency, individual actions, and geopolitical events.
The PPC shifts to the right: When the PPC (also known as the Production Possibility Frontier) shifts to the right, it signifies an increase in an economy's productive capacity. This shift can occur due to factors such as technological advancements, an increase in available resources, or improvements in productivity. It means that the economy can produce more goods and services than before.
Conversely, when the PPC shifts to the left, it indicates a decrease in an economy's productive capacity. This shift can occur due to factors such as natural disasters, wars, resource depletion, or a decline in productivity.
A point on the original PPC represents a combination of two goods or services that an economy can produce efficiently with its given resources and technology. It lies directly on the curve, indicating that all resources are fully employed and allocated efficiently to produce the specified goods or services.
A country acquires part of its neighboring country: This statement refers to a geopolitical event where one country acquires a portion of its neighboring country. This can happen through various means, such as territorial expansion, annexation, purchase, or diplomatic agreements. The specific details and implications of such an acquisition would depend on the circumstances and context surrounding it.
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Please help. Thank you
Answers
Answer:
During the menstrual cycle, the lining of the uterus thickens to prepare for an unfertilized egg to be fertilized by a sperm. If that doesn't happen, the lining sheds. Hope that helps!
the uterus lining sheds
alth
SUBMIT
Question 3 of 10
Multiple Response: Please select all correct answers and click "submit."
Which of the following are risk factors for cardiovascular disease? Select the
three correct answers.
A
Family history
hicable
B. High cholesterol
C. Sleep deficiency
cable
D. Tobacco use
icable
Answers
Answer:
1.) a 2.) c 3.) d ayan po:)
Zach is playing in his first floor hockey game. As the goalie he knows that his main job is to play directly in front of the goal and stop the ball from going in the net. In order to freely move to all areas of the floor on both offense and defense, Zach should play what position? Center Goalie Left Wing Right Defenseman
Answers
Answer:
center
Explanation:
Answer:
center
Explanation:
Why is social security important even for people who may have retirement savings, pensions, or income from working? What about Medicare?
Answers
Answer: social securrity is how you get payed.
Explanation:
Dr. Loren suspects that her patient has meningitis. what is the best course of action?
Answers
Answer:
performing a spinal tap and treating with antibiotics
Explanation:
Meningitis is an inflammation (swelling) of the protective membranes covering the brain and spinal cord. A bacterial or viral infection of the fluid surrounding the brain and spinal cord usually causes the swelling.
What are the symptoms of meningitis?Sudden high fever.Stiff neck.Severe headache that seems different from normal.Headache with nausea or vomiting.Confusion or difficulty concentrating.Seizures.
Acute bacterial meningitis must be treated immediately with intravenous antibiotics and sometimes corticosteroids. This helps to ensure recovery and reduce the risk of complications, such as brain swelling and seizures. The antibiotic or combination of antibiotics depends on the type of bacteria causing the infection.
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describe the relationship between phyisical activity and good health
Answers
Answer:
The relationship between physical activity and good health is that being physically active well cause you to be in good health.
Explanation:
Well without any physical activity and for example,if you would only eat fast food you would end up with diabetes which would effect your health.
Select the correct answer.
Parasites are organisms that live in or on another organism and consume its nourishment.
A.
True
B.
False
Answers
Answer: true
Explanation: parasites feed off of other organisms for example leaches feed off your blood and there are many other parasites
Answer:
A. True
Explanation:
parasites live by feeding off of organisms
Select the correct answer.
Parasites are organisms that live in or on another organism and consume its nourishment.
A.
True
B.
False
Answers
the answer is true
parasites need a host to live