Question 9 of 10

The effect wind has on an airplane can be modeled by using a wind tunnel.

What is one limitation of this model?

A. Changing atmospheric conditions can be modeled by varying the

airflow in the tunnel.

B. The wind tunnel must be run by highly skilled workers.

C. Valuable information about how planes fly is provided by a wind

tunnel.

D. Scientists can test pieces of planes, such as wings.

SUBMIT

Answers

Answer 1

Answer:

B. the wind tunnel must be run by highly skilled workers.

correct me po if imma wrong ^-^


Related Questions

Describe a situation from the news or recent history where scientists were called upon to provide explanations of events and offer possible solutions to problems.

Answers

Answer:

climate change

Explanation:

scientists are telling people what to do to save the planet

function of mound layering? ​

Answers

Heavy-stemmed shrubs and trees benefit from mound layering. Cover the main stem by clipping it down to the ground. The buds at the stem's tip will develop into a number of rooted branches. Inside the moss, roots will form, and you can cut the rooted tip from the plant.

How did Newton map the orbits of the planets?

Answers

Answer:

Newton developed a mathematical formulation of gravity that explained both the motion of a falling apple and that of the planets. He showed that the gravitational force between any two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them

Explanation:

how do you fix hair when you just got back from the beach? i washed my hair and it still hasn’t gone back to normal yet.

Answers

Answer:

perhaps your hair is a bit dry right now? have you tried deep conditioning it?

Who are the units of Newtons named
after?
A. American scientist, Sir Isaac Newton
B. English scientist, Sir Isaac Newton
C. French scientist, Sir Isaac Newton
D. German scientist, Sir Isaac Newton

Answers

C french scientists, Sir lsaac newton
B English scientist Issac Newton was born in England

A variety of mice can have either gray fur (G) or white fur (g). Which words describe the genotype of a mouse that inherits two of the alleles for white fur?

A. Homygous dominant

B. Homoygous white

C. Heteozygous Recessive

D. Heteozygous gray

Sorry about the misspelling It doesnt allow some words

Answers

Answer:

heterozygous Recessive

Answer:

I think the answer is Homygous dominant

Explanation:

explain why films maker must make sure the light intensity is right for filming

Answers

Explanation:

because the scene should be realistic to watch, that's all

Question 2 of 10
Which of the following should be included in a good conclusion?

Answers

Answer:

How to write a conclusion

An effective conclusion is created by following these steps:

Restate the thesis: An effective conclusion brings the reader back to the main point, reminding the reader of the purpose of the essay. However, avoid repeating the thesis verbatim. Paraphrase your argument slightly while still preserving the primary point.

Reiterate your supporting points: Aside from restating your thesis, you should also reiterate the points that you made to support it throughout the paper. But instead of simply repeating the paper's arguments, summarize the ideas.

Make a connection between your opening and closing statements: It's often effective to return to the introduction's themes, giving the reader a strong sense of conclusion. You can accomplish this by using similar concepts, returning to an original scenario or by including the same imagery.

Provide some insight: Your conclusion should leave the reader with a solution, an insight, questions for further study or a call to action. What are the implications of your argument? Why should anyone care? You'll want to answer these types of questions here and leave your audience with something to think about.

Explanation:

When you breathe, the pressure inside the lungs is different than the pressure outside the lungs. This is an example of a(n) __________. When you breathe, the pressure inside the lungs is different than the pressure outside the lungs. This is an example of a(n) __________. concentration gradient pressure gradient electrical gradient temperature gradient

Answers

Answer:

pressure gradient

Explanation:

The correct answer would be pressure gradient.

A pressure gradient is created when there is a difference in the amount of pressure between two points or locations that are adjacent to one another.

In this case, the two locations that are adjacent to one another are the inside and outside of the lung. When one breathes in, the pressure inside the lung is more than that of the outside and the lung expands as a result. When we breathe out, the pressure outside is more than that of the inside and the lung collapses.  

Which statement describes an element? Check all that apply.Which statement describes an element? Check all that apply.
An element is a pure substance that cannot be broken down into a simpler form.

An element is made of two or more atoms that are chemically combined.

All elements are listed on the periodic table of elements.

An element symbol begins with a capital letter; if there is a second or even third letter, it is a lowercase letter.

Answers

Answer:

- An element is a pure substance that cannot be broken down into a simpler form.

- All elements are listed on the periodic table of elements.

- An element symbol begins with a capital letter; if there is a second or even third letter, it is a lowercase letter

Explanation:

An element is one of the two types of pure substances i.e. substances that cannot be broken down into simpler forms. Elements are made up of only one type of atom e.g. Fe, Cl2 (two chlorine atoms).

All known or discovered chemical elements are represented on the periodic table. In an order of increasing atomic number, elements are arranged from left to right on the periodic table.

The symbol of an element begins with a first letter written in capital letters while the subsequent letters can be written in lower cases. For example, Fe, Cu, Hg, Zn etc.

Which of the following best describes passive transport of materials across a membrane?

Answers

Answer:

Passive transport requires energy and moves materials from areas of relatively lower to higher concentration. Passive transport dose not require energy and moves materials from areas of relatively lower to higher concentration

ANSWER CORRECTLY OR ILL REPORT YOU
How can political instability make genocide more likely?

by causing hardships and famine for the general population
by encouraging those who disagree to live together in a part of the city
by creating an unequal distribution of power between groups
by causing courts to punish members of certain groups

Answers

Answer:

The answer is C, by creating an unequal distribution of power between group.

Explanation:

I hope this helps you out.

Answer:

I think is C

Explanation:

What is not one of the 3 major areas of society affected by science

Answers

Answer:

biology

Explanation:

Answer:

D.

Explanation:

Justice

Hope it helps

explain why adrenaline has opposite effects on the blood vessels of the gut and the muscles ​

Answers

Answer:

Main effects of adrenaline exerted on smaller arterioles and precapillary sphincters although veins and large arteries also respond to the drug. It constricts vessels of skin & mucus (mucous) membrane. It dilates BV of skeletal muscles. Thus net results of this is, decrease in the peripheral resistance.

Explanation:

HOPE IT HELPS

Answer:

adreneline triggers the body's fight or flight response.this reaction causes air passages to dilate to provide muscles with oxygen they need to fight danger or flee

Species that compete for the same resources often switch to either use different resources or find ways to reduce competition. Why is this often true

Answers

Answer:

The correct answer is - to increase their survivability and reproductivity in the species.

Explanation:

Competition is the result of an interaction between two or more species or populations where both need or depends on the same limited resources that is utilized and protected by both and due to this one individual reduces the survival or reproduction of another individual.

In order to survive and reproduce their numbers species have to find other resources to feed or utilize or have to find new ways as if they did not adapt as per the changes they will be left very few or extinct.

Explain the properties of proteins and its general structure

Answers

Answer:

The common property of all proteins is that they consist of long chains of α-amino (alpha amino) acids. The general structure of α-amino acids is shown in . The α-amino acids are so called because the α-carbon atom in the molecule carries an amino group (―NH2); the α-carbon atom also carries a carboxyl group (―COOH).

Explanation:

Physical Properties of Proteins

Colour and Taste
Proteins are colourless and usually tasteless. These are homogeneous and crystalline.
Shape and Size
The proteins range in shape from simple crystalloid spherical structures to long fibrillar structures. Two distinct patterns of shape

A diagram shows a potato producing new tubers. Buds on the parent plant grow into stems that grow downwards called stolons. The end of each stolon develop in to new tuber.

1) Give two pieces of evidence which show that this is an asexual method of reproduction.

2) Explain why all the new tubers will be genetically identical.

Answers

Answer/Explanation:

Asexual reproduction is a type of reproduction in which new organisms that are identical are formed form a parent without the fusion of male and female gametes and do not require fertilization. Offspring formed are usually identical genetically, and are referred to as clones of the parent. Usually, only one parent is involved.

1. Two pieces of evidence that shows the potato growing is an asexual method of reproduction are:

i. Only one parent is involved

ii. The new tubers are identical (clones of the parent)

2. Reasons Why the new tubers will be genetically identical:

i. They grow from 1 parent by asexual reproduction

ii. No mixing of male and female gametes, so no exchange of genes takes place

Do you think that tardigrades could hold the key to space travel. Why or Why not?

Answers

Answer:Tardigrades have survived exposure to outer space. There are about 1,300 known species in the phylum Tardigrada, a part of the superphylum Ecdysozoa consisting of animals that grow by ecdysis such as arthropods and nematodes.

What is true of mechanoreceptors?

A) They sense light
B) They sense heat/cold
C) They respond to pressure, movement, and tension.
D) They monitor pain
E) Other:

Answers

Answer:

C) They respond to pressure, movement, and tension.

Explanation:

Mechanoreceptors are a type of somatosensory receptors which relay extracellular stimulus to intracellular signal transduction through mechanically gated ion channels. The external stimuli are usually in the form of touch, pressure, stretching, sound waves, and motion.

c they respond to pressure and movement and tension

Describe the difference between a benign and malignant tumour

Answers

Answer:

Explanation:

A benign tumor isn’t cancerous while a miligment tumor is

Which statement best describes how a catalyst can speed up a chemical reaction?
a. The catalyst decreases the activation energy needed.
b. The catalyst increases the concentration of products.
c. The catalyst binds to enzymes to release substrates.
d. The catalyst increases the concentration of reactants.

Answers

D. The catalyst increases the concentration of reactants.

Answer:

D. The catalyst increases the concentration of reactants.

Explanation:

in your own words, what is the definition for Double-helix?

Answers

A pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.

A double helix is a structure. It is where two strands intertwine with chemical backbones to hold its shape. This structure can be seen in double stranded DNA.

what statement is true for both photosynthesis and cellular respiration?

A. it occurs in consumers?

B. it occurs in producers

C. it produces carbon dioxide

D. it produces oxygen​

Answers

D is the right answer

One reason that Mendel chose garden peas for his experiments on heredity was because:
A. pea plants are haploid organisms.
B. peas are a popular vegetable.
C. pea plants usually self-fertilize.
D. peas have no recessive traits.

Answers

Answer:

. pea plants usually self-fertilize.

The photos below show specialized cells of a living organism.
Based on the parts of the cells that can be observed, these cells are most
likely from the
A. skin of frogs
ООО
B. leaves of plants
C. gallbladders of animals
D. roots of plants

Answers

Answer:

B

Explanation:

i am not sure also..sorry

Transcribe the information in DNA to mRNA. which RNA nucleotide can pair with the Thymine(T)at the beginning of the strand. Drag it into the DNA antisense strand to make a pair.

Answers

Answer:

Adenine  can go with Thymine

Explanation:

what does forage mean?

Answers

Answer:

to obtain food in the wilderness

Answer:

(of a person or animal) search widely for food or provisions.

food such as grass or hay for horses or cattle

The solutions in the two arms of a U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is filled with a solution of 4M sucrose and 2M glucose. Side B is filled with 2M sucrose and 3M glucose. Initially, the solution in side A, with respect to side B is______________.

Answers

Answer:

hypertonic

Explanation:

The solution in side A is hypertonic with respect to side B.

A hypertonic solution is a solution with a higher concentration of solutes in comparison with a neighbouring solution separated by a selectively permeable membrane.

In terms of both sucrose and glucose concentrations, the solution in side A is higher than the solution in side B of the U-tube. Hence, side A is hypertonic to side B.

A hypertonic solution is as opposed to a hypotonic solution with the latter having a lower concentration of solutes as compared to a neighbouring solution. Isotonic solutions have equal solute concentrations with their neighbouring solutions.

What is the key purpose of conservation biology?

Answers

Answer:

Conservation biology as a discipline aims to provide answers to specific questions that can be applied to management decisions. The main goal is to establish workable methods for preserving species and their biological communities.

What is the average hours that a newborn baby sleeps?

Answers

Answer:

14.to 17 hours of a 24 hour period . say the national sleep faoundation , some newbourn sleep up to 18.to 19 hours a day

Answer:

Newborns should get 14–17 hours of sleep over a 24-hour . Some newborns may sleep up to 18–19 hours a day. Newborns wake every couple of hours to eat.

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