Answer:
The deceleration of the plane is 0.25 m/[tex]s^{2}[/tex].
Explanation:
Deceleration is the converse of acceleration.
From first law of motion, we have;
v = u + at
where: v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.
Thus,
v = 50 m/s
u = 80 m/s
t = 120 s
50 = 80 + 120a
50 - 80 = 120a
-30 = 120a
a = [tex]\frac{-30}{120}[/tex]
= -0.25
a = -0.25 m/[tex]s^{2}[/tex]
The deceleration of the plane is 0.25 m/[tex]s^{2}[/tex].
What is the relationship called between a host, a guest, and guest services?
Question 18 options:
Kindness
Compassion
Hospitality
Informality
Answer:
is the third one, hospitality
If an animal fossil was found in a rock, what would be the best way to determine its absolute age?
*analyze the rock’s mineral composition
*take X-rays of the fossil and surrounding rock
*compare it to similar-looking fossils that have already been dated
*measure the ratio of a radioactive isotope and its decay product present in the rocks around the fossil
Answer:
D
Explanation:
Absolute age is defined as the numeric age of fossils.
To identify the absolute age of a fossil, the amount of certain radioactive elements in the rock are measured. When fossils are formed in the rocks, a small amounts of radioactive elements is included in it. The process to identify age of fossil using radioactive elements is known radiometric dating. So, radioactive isotope and its decay product gives absolute age of fossils.
Hence, the correct answer is "D".
place the steps of protein production in the correct order
A strand of RNA is made
The DNA unzips
the RNA leaves the nucleus
a protein is produced
the RNA removes to the Ribsome
Answer:
A strand of RNA is made
The DNA unzips
the RNA leaves the nucleus
a protein is produced
the RNA removes to the Ribsome
Explanation:
Answer:
The DNA unzips
A strand of RNA is made
RNA leaves the nucleus
The RNA moves to the ribosome
A protein is produced
Explanation:
Got it right on edge 2022
Farming the land has a decreasing effect on the overall amount of soil
erosion.
True or false ?
Answer:
False
Explanation:
Farming practices disturb the ground. Farmers remove native vegetation and then plow the land to plant new seeds. Tractor tires make deep grooves, which are natural pathways for water. Fine soil is blown away by wind.
Answer:
False.
Explanation:
Agriculture is perhaps the foremost vital activity that accelerates erosion due to the quantity of land that's farmed and the way abundant farming practices disturb the ground.
1. Unmarked closed loops on a topographic map indicate ________________________.
2. True or false: Contour lines sometimes cross.
3. Contour lines are closer together at _______________________________slopes.
4. Contour lines are farther apart at ________________________________ slopes.
5. On a topographic map, the index contours are drawn thick and bold, state the elevation, and are usually drawn every_________ line.
Answer:
1. the tops of hills, mountains or depressions (dips)
2. false
3. steep
4. flat
5. fifth
Explanation:
hope it helped.
A scientist wants to observe how a plant reacts to a certain type of auxin hormone that the plant naturally produces. She places a small patch that releases auxin on one side of a plant. She places the plant in a room where light shines on the plant in all directions. A drawing of the plant before the experiment and after a week of the experiment is shown below.
Refer to the plant auxin experiment above. How did the plant respond to the auxin stimulus?
Answer:
it got weaker
Explanation:
in a breed of dog, the breed for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur. What is most likely the explanation for the brown fur?
1.) the dog received a mutated gene
2.) the dog only received one gene for fur color
3.) the dog received one gene for brown fur and one gene for black fur
Answer:
3) the dog received one gene for brown and one for black
The most likely reason for the brown fur in one of the offspring is that the dog received one gene for brown fur and one gene for black fur.
WHAT IS HETEROZYGOSITY?Heterozygosity is a genetic condition whereby a gene is made up of two different alleles.
According to this question, the breed for black fur (B) is dominant and the gene for brown fur (b) is recessive in the breed of dogs. If two dogs with black furs are crossed, one of the offspring has a brown fur.
The reason for the above observation is that the black-furred parents were both heterozygous i.e. Bb, hence, the dog received one gene for brown fur and one gene for black fur.
Learn more about heterozygosity at: https://brainly.com/question/13050360
What tools can be used to make observations of the color of a mineral? WILL GIVE BRAINLEST PLS HELP
Hammer
Hand lens
Steel nail
Streak plate
Which phase of the cell cycle occurs when the cell is preparing to divide so it grows in size making organelles and copying DNA
Answer:
Interphase
Explanation:
In interphase the cell replicates DNA and organelles to prepare for the rest of mitosis
Tissues are Groups of ________ with a similar structure and function
A) Organs
B) Cells
C) Genes
Answer:
tissues are organisational level between cells and a complete organ.
Explanation: yes they are cells.
1.) What are the female sex chromosomes?
2.) What are the male sex chromosomes?
Answer:
Female XX
Male XY
Explanation:
Female XX and Male XY would be the correct answer
What do you conclude concerning whether viruses are alive? Is there a clear-cut distinction between living things and non-living things?
Answer:
yes
Explanation:
Viruses are considered non living by many scientists because they are not made of cells and they don't create their own energy. Instead they are proteins and genetic material that survive and replicate inside another form of life.
What is the acceleration of a 40 kg object pushed with a force of 400 N?
The acceleration of a 40 kg object pushed with a force of 400 N is 10 m/s.
How to find the acceleration of an object?Given:
mass =40 kg
acceleration = unknown
force = 400 N
By using the force formula, we get
f = ma
⇒ f/m=a
⇒(400)/(40) = 10 m/s
In line with Newton's second law of motion, the acceleration of an object equals the net force appearing on it divided via its mass or a = F m . This equation for acceleration may be used to calculate the acceleration of an item whilst its mass and the net force performing on it are known.
Learn more about Newton's second law of motion here: https://brainly.com/question/18026805
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Which of these is a food web based on the relationships described above?
Answer:
d or b
Explanation:
d or b
based on the relationships above the answer is B.
describe how bears have evolved in order to be successful animal species?
Answer:
Evolution of Polar Bears
Explanation:The fossil transitions leading to our knowledge of development of the Polar Bear species are very well documented. Bear fossils change through time; i.e., as higher levels of sediments and sedimentary rocks are examined, more recent fossils are found.
The observed fossil transitions that inform our knowledge of Polar Bear speciation are very well documented. Bear fossils change through time: generally, when examining the fossil record, successively deeper levels of sediments or sedimentary rocks yield successively older fossils. For some transitions from one species to another, one can find a well-characterized series of transitional specimens leading the observer across the species "boundaries" (Kurten, 1976).
Which of the following best summarizes photosynthesis? *
**Urgent** Need help fast
Answer:
For the first box (top left one), it is AA
For the second box (top right one), it is Aa
For the third one (bottom left one), it is aA
For the fourth one (bottom right one), it is aa
This one above ^^^ is the top line of the punnet square (the small line)
A = free-hanging earlobes
a = attached earlobes
For the first box (top left one), it is free-hanging earlobes (both "A"s are dominants, and the dominant is greater than the recessive one).
For the second box (top right one), it is free-hanging earlobes (there is at least one dominant A so it will be greater than the other "a" although there is a chance for it to be an attached earlobe, but in this case, it isn't)
For the third one (bottom left one), it is free-hanging earlobes (again, there is at least one dominant A so it will be greater than the other "a" even though, there is a chance for it to be an attached earlobe, but in this case, it isn't)
For the fourth one (bottom right one), it is attached earlobes (both "a"s are recessive, there is not one dominant "a" which means that it will be an attached earlobe".
This one above is ^^^ is for the second line in the punnet square (the longest line) P.S you dont have to write the explanation you can just write if it's an attached earlobe or a free-hanging one
The ratio will be 75% to 25%. The 75% will be the offsprings inheriting the free-hanging earlobes, and the 25% will be the offsprings inheriting the attached earlobe. It is most likely that the offspring will inherit the trait for free-hanging earlobe since it is the dominant allele there is.
Hope this helped!
how has human understanding of space changed throughout history
Answer:
Well for starters people thought the earth was flat, now looking at earth through space they now know it's not.
Explanation:
rivers are less productive than swamps because _____.
A. swamps contain more water
B. swamps have stagnant water
C. sunlight reaches more of the water in rivers
D. nutrients are swept downstream in rivers
please help me now i give you brainliest if your answer is correct
Answer:
B
Explanation:
Rivers are less productive than swamps because rivers just flow, they do nothing to the earth but bring water. Swamps are dirty and filthy, they help animals out.
Explain how the changes in the trends for smoking may affect the occurrence of cardiovascular disease.
6 MARK QUESTION
Answer:
Smoking and cardiovascular disease
Smoking increases the risk of cardiovascular disease in several ways:
Smoking damages the lining of the arteries, including the coronary arteries. The damage encourages the build-up of fatty material in the arteries. This can lead to a heart attack or a stroke.
Inhalation of carbon monoxide in cigarette smoke reduces the amount of oxygen that can be carried by the blood.
The nicotine in cigarette smoke increases the heart rate, putting strain on the heart.
Chemicals in cigarette smoke increase the likelihood of the blood clotting, resulting in a heart attack or stroke.
Explanation:
Which of the following is an example of a total war practice carried out during World War ll?
Answer:
One of such total war practices that was done in World War was rationing of food.
Explanation:
help ASAP for brainlist and extra points
Answer:
C) DBAC
Explanation:
Answer:
BCAD
Explanation:
what is gene expression? What are the two stages of gene expression? What happens during those two stages?
Answer:
Gene expression is the process by which information stored in DNA is used to direct the synthesis of a specific gene product. This synthesis takes place in two stages: transcription and translation.
Explanation:
Gene expression is the process that makes it possible to obtain proteins from genes. Genes are nucleotide sequences of DNA that encode the information necessary for protein synthesis. This synthesis takes place in two stages: transcription and translation. Transcription takes place in the nucleus and in it one of the two strands that make up the double strand of DNA serves as a template for a specific sequence to be copied into a single stranded RNA molecule. Subsequently, this RNA leaves the nucleus and carries the message - the nucleotide sequence - to the ribosomes, hence the name of messenger RNA (mRNA). Translation is a cytoplasmic process in which the mRNA molecule is decoded to generate a specific chain of amino acids, called a polypeptide (the protein). The correspondence between nucleotides (mRNA) and amino acids (protein) is what is called the genetic code.
what is a pe.do???? anyone know?
Answer/Explanation:
It is sexual abuse from someone who is 16+ and is at least 5 years older and is attracted to a minor that is 13 or less years of age.
How far is an astronomical unit (AU)?
Explain in detail how the longer, more colorful tails evolved in peacocks despite causing disadvantages for the males.
Answer:
Due to mating
Explanation:
The longer and more colorful tails evolved in peacocks in the process of natural selection in order to preserve the peacock species despite causing disadvantages for the males.
The Long and colorful tails ensured that the females got attracted for mating and subsequent reproduction to ensure they didn’t go extinct.
\What did you have to do to turn an atom that is labeled “+ion or -ion” into a “Neutral Atom”?
Answer:if an atom is labeled as +ion then it needs electron to be neutral ,
but
if an atom is labeled as -ion then it has to lose electrons to be neutral.
Explanation:
A positive and negative ion can be converted to neutral by adding or deleting electrons respectively.
What is an Atom?It is the smallest particle that can represent an element. It is consist of electron, proton, and neutron.The electrons are negative particles and revolve around the nucleus. Protons are positive particles found inside the nucleus with neutrons. The number of positive and negative particles is equal inside a nucleus.A positive ion may lose one or more electrons and a negative ion may have one or more extra electrons.Therefore, a positive and negative ion can be converted to neutral by adding or deleting electrons respectively.
Learn more about Neutral Atom:
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Energy transfer is inefficient between trophic levels because
Answer:dead organisms and waste are recycled throughout the tropic levels
Explanation:
Does a Prokaryotic or Eukaryotic cell have organelles (tiny organs)?
Prokaryotic:
Eukaryotic:
Answer:
Prokaryotic have no organelle but the eukaryotic do have cells
Explanation:
A physician has a patient with diabetes. Due to a mutation in the patient’s insulin gene, he does not make the insulin protein. In order to treat the patient, the insulin protein will be made in a lab by inserting the human gene for insulin into bacteria. The bacteria will then produce insulin, which will be collected and given to the diabetic patient. Which type of genetic technology is involved in the production of the insulin protein?
A. Recombinant DNA
B.Selective Breeding
C.DNA Fingerprinting
D. Reproductive Cloning
Answer:A
Explanation:
Answer:
A
Explanation:
