a girl walks 32.5 m east, then another 20 meters west. calculate her
relative to where she started.
26.5 meters east
12.5 meters west
12.5 meters east
32.5 meters east
Answers
The girl's relative position to where she started is 26.5 meters east and 12.5 meters west.
Here, correct option is B.
The girl started from an initial position. She then walked 32.5 meters east, which is equivalent to moving in a positive direction from her starting point. After that, she walked 20 meters west, which is equivalent to moving in a negative direction from her starting point.
Thus, her relative position to where she started is 26.5 meters east and 12.5 meters west. This means that she is now located 26.5 meters east and 12.5 meters west of her initial position.
This calculation is based on the fact that east is a positive direction and west is a negative direction. Therefore, her new position is 12.5 meters east and 12.5 meters west from her starting point.
Therefore, correct option is B.
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Related Questions
An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called
A.manostat
B. chemostat
C. turbidostat
D. culturostat
Answers
The open system described in the question is called a chemostat. In a chemostat, the growth rate of microorganisms is controlled by adding nutrients at the same rate as they are consumed, thus maintaining a constant nutrient concentration in the system.
This is done by continuously removing a portion of the culture and replacing it with fresh medium containing the limiting nutrient. The chemostat is commonly used in microbiology research to study microbial growth dynamics and to maintain cultures of microorganisms in a controlled environment.
An open system is a system that has external interactions. Such interactions can take the form of information, energy, or material transfers into or out of the system boundary, depending on the discipline which defines the concept.
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Which of the following statements describes primary or secondary pollutants?
a) Primary pollutants are formed in the atmosphere.
b) Secondary pollutants are released from a source.
c) Primary pollutants react to form secondary pollutants.
d) Secondary pollutants break down to form primary pollutants.
e) Primary pollutants are less dangerous than secondary pollutants.
Answers
Answer:
C and E
Explanation:
The correct options that describe primary and secondary pollutants would be C and D.
Primary pollutants are substances released directly into the atmosphere capable of harming living organisms at a particular threshold concentration. An example is carbon monoxide. Secondary pollutants, on the other hand, are formed in the environment from primary pollutants. For example, NO2 is formed from the reaction of NO and oxygen.
Secondary pollutants, therefore combine the toxicities of their component primary pollutants to arrive at stronger toxicity. Hence, secondary pollutants are more dangerous than their primary counterparts.
The correct answer is options C and E.
Match the following vocabulary with the definitions.
1. Occurring in the presence of oxygen
2. The stage of respiration that occurs in anaerobic condition In animal cells
3. The first step in the chemical breakdown of glucose
4. Occurring in the absence of oxygen
5. The stage of respiration that occurs in anaerobic conditions In less complex organisms
lactic acid fermentation
anaerobic
alcohol fermentation
glycolysis
aerobic
Answers
Answer:
aerobic- 1. Occurring in the presence of oxygen
lactic acid fermentation- 2. The stage of respiration that occurs in anaerobic condition In animal cells
glycolysis- 3. The first step in the chemical breakdown of glucose
anaerobic- 4. Occurring in the absence of oxygen
alcohol fermentation- 5. The stage of respiration that occurs in anaerobic conditions In less complex organisms
Explanation:
EASY QUESTIONS FOR YOU
what is the difference between hypothesis and prediction??
Answers
Answer:
Hypothesis - In the sciences, a provisional supposition from which to draw conclusions that shall be in accordance with known facts, and which serves as a starting point for further investigation. Prediction - The action of predicting future events; an instance of this, a prophecy, a forecast.
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WRITE DOWN THE 2 EFFECTS OF CONTRACTING THE CHICKENPOX VIRUS
Answers
Answer:
yes
Explanation:
im 14 about to be in ninth grade iv had chicken pox twice when i was a kid to be exact when i was 4 and 5 i have not had them since i was 5. there fore yes it is possible to be immune IF you get them more than once.
Traditional African marriage is an advantage for men only, not women
Answers
Answer:
Explanation:
Traditional marriage is an advantage to men only because they are the only ones who allowed to marry more than one wife (Polygamous) which makes women to be vulnerable. Yet the women are not allowed to be in polyandrous.
How do greenhouse gases such as carbon dioxide cause global warming?
Answers
Answer & Explanation:
Greenhouse gases such as carbon dioxide and other gases trap some of the Earth's outgoing energy, which retains heat in the atmosphere, causing global warming.
Hope that helps you! :3
Children tend to resemble their parents due to __________
Answers
Answer:genetics
Explanation:
You are walking down a straight road at 2.5 miles/hour. This does not change.
Are the forces on you balanced or unbalanced? Explain your answer.
Answers
Answer:
unbalanced
Explanation:
The human is walking with no force acting upon it
*The Hydrologic Cycle Q3: Do you think the reservoir gains or loses w: Q4: How much?
Answers
The hydrologic cycle is a process by which water circulates through the Earth's atmosphere, oceans, and land, linking them in a continuous cycle.
During this cycle, water moves between the oceans, land, and atmosphere through evaporation, precipitation, transpiration, runoff, infiltration, and storage. The hydrologic cycle is an essential process for the Earth's ecosystems, as it distributes freshwater and supports life on the planet.
Q3: Do you think the reservoir gains or loses water?
A reservoir can gain or lose water depending on the balance between the amount of water entering and leaving the reservoir. If the inflow is greater than the outflow, the reservoir will gain water, and if the outflow is greater than the inflow, the reservoir will lose water.
Q4: How much?
The amount of water gained or lost by a reservoir will depend on various factors such as the size of the reservoir, the amount of precipitation, evaporation, and human use. Therefore, it is not possible to provide a specific value for the amount of water gained or lost by a reservoir without considering these factors.
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non mendelian inheritance explain
Answers
Explanation:
Non-Mendelian inheritance refers to the inheritance of traits that have a more complex genetic basis than one gene with two alleles and complete dominance.
Abby has blue eyes like her father. Where is the trait found? A Genes in the chromosomes in a nucleus Home B Nuclei in a gene in a chromosome C Chromosomes in a gene in cytoplasm D Cytoplasm in a chromosome in a vacuole
Answers
Answer:A
Explanation:lol
Define 3 of the major parts of the skeletal system and list the
function(s) of each (bones, ligaments, and tendon, cartilage.)
Answers
Answer:
Bone
The major functions of the bones are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and hematopoiesis. Together, the muscular system and skeletal system are known as the musculoskeletal system.
Ligament
Ligaments connect the ends of bones together in order to form a joint. They also assist in holding organs in place. Tendon: A tough, flexible and inelastic band of fibrous connective tissue that connects muscles to bones.
Tendon
A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.
Cartilage
Cartilage: This smooth and flexible substance covers the tips of your bones where they meet. It enables bones to move without friction (rubbing against each other). When cartilage wears away, as in arthritis, it can be painful and cause movement problems.
Which of these are the smallest?
A.Protista
B.Virus
C.Fungi
D. Bacteria
Answers
Answer:
virus
Explanation:
its the smallest yuh
A particular gene has two alleles, a dominant allele A and a recessive allele a. The frequency of allele A is 0.55 . If the population is in Hardy-Weinberg equilibrium with respect to the gene, then what is the expected frequency of genotype Aa?
Answers
Answer:
0.495
Explanation:
because i did the question
What are the 2 ways a channel can be made? (science)
Answers
Glaciers that carved down large gorges between two continental masses are thought to be responsible for some of the channels.
Where do channels come from?Glaciers that carved down large gorges between two continental masses are thought to be responsible for some of the channels. People typically dig channels out of the bottom of shallow waterways so that large ships can travel through them. They are referred to as navigation channels.A canal is a man-made waterway that enables ships and boats to move between different bodies of water. Water is also transported through canals for human purpose, including irrigation.Although a strait and a channel both join two bodies of water, a channel is frequently wider. A sound is similar to a strait but wider. Normally, islands are separated from other bodies of water by a channel. Though they are frequently used synonymously.To learn more about Canal refer to:
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What evidence is there that the peppered colouring allele (white) remained in the population even when the black colour became more common ?
Answers
The presence of the peppered coloring allele (white) persisted in the population despite the increasing prevalence of the black color.
This was evidenced by researchers in the 1960s who observed peppered-colored peppered moths in populations where 95% of the moths were black-colored. The shift in the moth population was a response to the environmental changes brought about by industrial pollution during the industrial revolution. The pollution caused tree bark to turn black, making the white-colored peppered moths more conspicuous to predators.
As a result, the frequency of black-colored moths increased as they were better camouflaged in the polluted environment, enabling them to avoid predation and reproduce successfully. However, the peppered coloring allele (white) persisted in the population, indicating that it maintained a level of fitness and evolutionary advantage in certain contexts or under specific conditions.
In summary, despite the environmental pressures favoring the black coloration in peppered moths, the peppered coloring allele (white) remained present in the population, suggesting its ongoing role in the moth's evolutionary dynamics.
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Examine the graphic and caption in the section "One Atmosphere, Many Layers."
Which selection from the article is BEST illustrated by the graphic and caption?
A
"Tropos" means change, which makes sense because the troposphere is constantly mixing up the gases in this part of our atmosphere.
B
The stratosphere is where you'll find the very important ozone layer.
C
The ionosphere is where auroras happen.
D
The exosphere is the outermost layer of our atmosphere.
Answers
Explanation:
the exosphere is the outermost layer of our atmosphere answer is d
Answer: d
Explanation:
Y’all I will mark brainiest PLEASE
Answers
Answer:
Reactant Side:
1 Carbon Atom, 4 Hydrogen Atoms, 4 Oxygen Atoms
Product Side:
1 Carbon Atom, 4 Hydrogen Atoms, 4 Oxygen Atoms
To solve this, you only need to count how many of each atom are in the equation. For the reactant side, there is only one C in the whole equation, so we say 1. There is 4 Hydrogens as depicted as a subscript under H, and there are 2 pairs of oxygen, which make it four.
On the other hand, C is only used once again for the products, there are a pair of oxygen, then two oxygens from the water to make it four oxygens, and 4 hydrogens.
To conclude, since the reactant and product side both have the same numbers, the chemical equation is balanced.
The _____ secretions of the pancreas include digestive enzymes and bicarbonate, which are secreted into ducts leading to the small intestine.
Answers
Answer:
Exocrine Secretions
Explanation:
Pancreatic juice is composed of two secretory products critical to proper digestion: digestive enzymes and bicarbonate. The enzymes are synthesized and secreted from the exocrine acinar cells, whereas bicarbonate is secreted from the epithelial cells lining small pancreatic ducts.
Although they are different species, woodpeckers and squirrels both live in holes in trees. what resource are these species competing for? food and water sunlight space or shelter ability to reproduce
Answers
Although they are different species, woodpeckers and squirrels both live in holes in trees. The resources that these species compete for include space and shelter.
Woodpeckers are birds that build shelters on the trees while squirrels make holes in wood bark as their habitat.
Species living in the same environment often compete for the distribution of resources including food, shelter, space, and more.
Squirrels eat fruits, nuts, almonds, pecans, etc. while woodpeckers eat insects, nectar, corn, fruits, etc.
There is not so much competition for food but as they both live on trees, they compete for space and shelter.
as they belong to different species, so they don't compete for reproduction opportunities.
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Answer:
c
Explanation:
edge 2023
What cell do mutations occur in that can be passed to offspring?
A. Blood cell
B. Nerve cell
C. Brain cell
D. Egg cell
Answers
Answer:
D
Explanation:
its D because i saw it in class
Answer:
D. Egg cell
Explanation:
Mutations can only occur in reproductive cells like Eggs Or Sperm
examples of turgidity
Answers
Answer: Some examples of turgidity would be, maybe a hypoxic or swollen plant, and/or organisms.
Explanation:
Identify the monomers and polymers
Answers
Answer:
Explanation:
i) polymer
ii) monomer
iii) polymer
which trace mineral is an essential component of thyroid hormones? group of answer choices iron iodine zinc chromium
Answers
The trace mineral that is an essential component of thyroid hormones is iodine, option B is correct.
Iodine plays a crucial role in the synthesis of thyroid hormones, including thyroxine \((T_4)\) and triiodothyronine \((T_3)\), which are responsible for regulating the body's metabolism. These hormones are produced by the thyroid gland and require iodine to be incorporated into their structure.
Without adequate iodine, the thyroid gland cannot produce enough hormones, leading to a condition known as iodine deficiency disorder (IDD). IDD can result in impaired growth and development, goiter (enlargement of the thyroid gland), and cognitive impairment. Therefore, ensuring sufficient intake of iodine through diet or supplementation is vital for maintaining optimal thyroid function and overall health, option B is correct.
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The correct question is:
Which trace mineral is an essential component of thyroid hormones? (group of answer choices)
A) iron
B) iodine
C) zinc
D) chromium
what is basic ?
plzz answer
Answers
Answer: of, relating to, or forming the base or essence : fundamental basic truths. b : concerned with fundamental scientific principles
Explanation:
It takes a 1.5 m length of 137 cm-wide fabric to make the collar of an airbag
manufacturer is making 250 special-order collars. One morning, at
only 65% of the length of fabric they need to make the collars. How ma
are needed to be able to make all 250 collars? Show your work.
ke the collar of an airbag helmet. The
One morning, a technician finds they have
ollars. How many more meters of fabric
Answers
Answer:
163 fabric needed to make 250 collars.
Explanation:
Given that,
Length = 1.5 m
Width =137 cm
Number of order = 250
Use fabric = 65%
We need to calculate the actual length need to make a collar
Using given data
\(Actual\ length =Length\times use\ fabric\)
Put the value into the formula
\(Actual\ length =1.5\times\dfrac{65}{100}\)
\(Actual\ length=0.975\ m\)
We need to calculate the total length of fabric
Using formula for total length
\(total\ length=Actual\ length\times Number\ of\ collars\)
Put the value into the formula
\(total\ length=0.975\times250\)
\(total\ length=243.75\ m\)
We need to calculate the number of fabric
Using formula for number of fabric
\(Number\ of\ fabric=\dfrac{total length}{length}\)
Put the value into the formula
\(Number\ of\ fabric=\dfrac{243.75}{1.5}\)
\(Number\ of\ fabric=162.5\approx 163\)
Hence, 163 fabric needed to make 250 collars.
Answer:
375
Explanation:
trust
What does natural selection mean and how and can you correlate it to our bacteria.
Answers
1. What force, created when two surfaces rub together,
makes it difficult to drag a large object across the
ground?
A gravity
B friction
C lift
D drag
2. Which of the following do many scientists think
caused the extinction of the dinosaurs?
A an asteroid
B freezing temperatures
C wildfires
D all of the above
3. All lobster shells contain __________, compounds that
give lobsters their color.
A melanin
B DNA
C pigments
D dye
4. Nitrogen dioxide, a major air pollutant, is a gas
produced mainly by __________.
A cars
B cow farts
C factories
D wildfire smoke
5. The most common cause of concussions among high
school football players is __________.
A contact with another player
B hitting the ground
C crashing into equipment
D practicing too hard
6. __________ of the elements on the periodic table are
found in nature.
A 100%
B Around 75%
C About 50%
D Less than 50%
7. Emeralds form when elements in __________ are
heated and pressed together.
A rocks
B Earth’s crust
C Earth’s core
D lava
8. Lobsters usually have brown shells, but some can be
different colors due to __________.
A an adaptation
B a mutation
C an environmental factor
D a change in pH
9. During which time of year is air pollution the highest
in London?
A Summer
B Spring
C Winter
D Fall
10. Dinosaurs became extinct about __________ years
ago.
A 65 million
B 6.5 billion
C 65,000
D 6,500
Answers
Answer:b friction
Explanation:
4
EVIDENCE
The evidence is the
data that supports
your
(an observation,
graph, table, chart,
etc..)
You should use
pieces of data in
your evidence
statement.
Answers
Evidence consists facts intended for use in support of a conclusion.
Why Evidence is important?
Evidence based research is the use of prior research in a systematic and transparent way to inform a new study so that it is answering questions that matter in a valid , efficient and accessible manner.
Evidence can come from the piece of genetic material or trace chemical to dental history or fingerprint.
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