0.2 Give three examples of surfaces that produce a High friction b low friction​

Answers

Answer 1

Answer:

ice , mirror , soap , oil , lubricant surface are examples write anyone of your choice.

Explanation:

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Related Questions

What are some ways of reducing the effects of global warming​

Answers

Stop wasting food
Stop littering
Recycling
Reduce
Reuse
Use bicycles instead of vehicles


1. Is it advisable to switch the microscope on while looking through the eyepiece?

Answers

Answer:

yes ithink its important to switch on

What describes how a large host cell and ingested bacteria could easily become dependent On one another for survival resulting in a permanent relationship

Answers

Answer:

The endosymbiotic theory describes how a large host cell and ingested bacteria could easily become dependent  on one another for survival

Explanation:

how would you turn "Shakespeare wrote wonderful plays" and "brown eyes are more beautiful than blue eyes" into a hypothesis

Answers

Answer:

If Shakespeare's plays were wonderful, then people would hail his writing.

If brown eyes are more beautiful that blue eyes, then more people will covet brown eyes.

Explanation:

A hypothesis should have an if, then format. If you wish, you can include a because.

If ________________, then ___________________, because __________________.

A monomer is to a polymer, like a____? A) word is to a sentence B) Lego block is to a Lego castle C) tree is to a forest D) All of the above
Please help I'm taking a test

Answers

D all of the above. A monomer is simply a part of the total thing, being a polymer.

A monomer is a polymer like a word is to a sentence, a Lego block is to a Lego castle, and a tree is to a forest. The correct option is D) All of the above.

What are polymers?

Polymers are chains of monomers. Many monomers join together to form polymers. Monomers are single units of something. Now many polymers are made up of the same types of monomers, they are called homopolymers.

Herteropolymers are those polymers that are made up of different units of monomers. A group of words makes a sentence. Lego is a piece of plastic block that made a Lego castle or other things. Trees are the monomers unit of a forest because many trees made a forest. So all these are equivalent to what a monomer is to a polymer.

Thus, the correct option is D) All of the above.

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In Mendel's experiments, he discovered a difference in the F1 and F2 generations. What difference did Mendel observe?

0% of the F1 generation displayed the recessive phenotype, and 75% of the F2 generation displayed the recessive phenotype.
100% of the F1 generation displayed the recessive phenotype, and 25% of the F2 generation displayed the recessive phenotype.
0% of the F1 generation displayed the recessive phenotype, and 25% of the F2 generation displayed the recessive phenotype.
25% of the F1 generation displayed the recessive phenotype, and 100% of the F2 generation displayed the recessive phenotype.

Answers

In Mendel's experiments, the difference he discovered in the F1 and F2 generations is as follows: 0% of the F1 generation displayed the recessive phenotype, and 25% of the F2 generation displayed the recessive phenotype.

MENDEL EXPERIMENT:

Gregor Mendel is regarded as the father of genetics due to his immense contributions to inheritance.

Gregor Mendel worked with pea plants where he studied several traits in the plant. Mendel crossed two parents that are true breeding for a particular trait.

The first filial generation (F1) were all dominant i.e. 0% recessive while the second filial generation (F2) were 3 dominant and 1 recessive i.e. 25% recessive.

Therefore, in Mendel's experiments, the difference he discovered in the F1 and F2 generations is as follows: 0% of the F1 generation displayed the recessive phenotype, and 25% of the F2 generation displayed the recessive phenotype.

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In the following scenarios, identify the independent variable, and the dependent variable.
1. Endurance in high altitude mountain climbers with and without the use of supplemental O2.
a. Independent Variable:
b. Dependent Variable:
2. Weight loss in subjects eating low carbohydrate diets.
a. Independent Variable:
b. Dependent Variable:
3. The number of hours spent studying biology each week and grades earned on biology exams.
a. Independent Variable:
b. Dependent Variable:
Suggest a control group for each of the following experiments.
4. Cancer rates in students who smoke cigarettes are closely monitored over a 5-year period.
Control Group:
5. Weightlifters are given 400 mg of creatine phosphate every day for 90 days. At the end of the 90-day period each participant is evaluated for improvements in strength.
Control Group:

Answers

The independent variable produces an effect on the dependent variable, while the control variable produce no change on the results. In the exposed situations, the independent variables are supplemental O₂, low carbohydrate diets, hours spent studying biology. The dependent variables are Endurance of climbers, Weight loss, grades earned on exams. And the control variable might be time.

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During an experiment, you need to consider all the variables involved.

Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified to analyze how another variable responds to it. The researcher changes the independent variable to observe its effects on the dependent variable. Usually, the independent variable is represented by the X letter. Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. Controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.

1. Endurance in high altitude mountain climbers with and without the use of supplemental O2.

a. Independent Variable: supplemental O2  

b. Dependent Variable: Endurance in mountain climbers

The endurance of climbers will depend on the use of supplemental O₂. If they use supplemental oxygen, they will have more resistance than if they do not use it. Supplemental Oxygen is influencing the climbers´ endurance.  

2. Weight loss in subjects eating low carbohydrate diets.

a. Independent Variable: low carbohydrate diets

b. Dependent Variable: Weight loss

Having a low carbohydrate diet will lead the subjects to lose weight. Any change in the quantity of the carbohydrate will affect the individuals' weight.  

3. The number of hours spent studying biology each week and grades earned on biology exams.

a. Independent Variable: hours spent studying biology

b. Dependent Variable: grades earned on exams

The more hours students spend studying, the higher grades they get on biology exams. The grades depend on the number of hours used to study and are proportional to this variable.  

4. Cancer rates in students who smoke cigarettes are closely monitored over a 5-year period.

Control Group: Time → Five years

Time is constant in all the study groups. Independently of the number of cigarettes smoked, or the frequency in which subjects smoke, all the groups will be analyzed for 5 years, and this time-lapse is constant.  

5.Weightlifters are given 400 mg of creatine phosphate every day for 90 days. At the end of the 90-day period each participant is evaluated for improvements in strength.

Control Group: Time → 90 days

Time is constant in all the study groups. Independently of the creatine phosphate mg provided to weightlifters, individuals will be analyzed for 90 days, and this time-lapse is constant.

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The water cycle summarizes the processes that take place when water moves through the hydrosphere. The water cycle is shown here:

Answers

Explanation:

water moves through the hydrosphere in a cycle. Water collects in clouds, then falls to Earth in the form of rain or snow. This water collects in rivers, lakes and oceans. Then it evaporates into the atmosphere to start the cycle all over again

Meaning of chromatos
A. color writing
B. Color forming
C. Color spreading
D. None of these

Answers

It literally means color forming

chromato meaning

Chromato- is a combining form used like a prefix meaning “color.” It is used in many scientific and medical terms. In cell biology, chromato- specifically refers to chromatin, “the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division.”

What is a flock of ravens called ?

Answers

Answer:

an unkindness or conspiracy of Ravens

A flock of ravens is called an unkindness

The glutes maximus is located superior to which muscle?

Answers

Answer: buttocks

Explanation:

the gluteus maximus muscle is located in the buttocks and is regarded as one of the strongest muscles in the human body. It is connected to the coccyx, or tailbone, as well as other surrounding bones. The gluteus maximus muscle is responsible for movement of the hip and thigh.

what is the concept that organisms can only come from other organism called

Answers

The concept that organisms can only come from other organisms is called biogenesis.

The concept of biogenesis has to do with the belief that organisms cannot just arise spontaneously from non-living objects or sources, but can only arise from another living organism through the process of reproduction.

Biogenesis is as opposed to abiogenesis. The latter is a concept that opines that organisms can arise spontaneously from non-living sources without any reproduction.

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Arrange the rock layers from oldest to youngest re-examine The rock outcrops if you need to. Record the order in the student guide.

Basalt

Limestone with unknown fossil

Sandstone with trilobite

Shale with ammonite​

Answers

Answer:

Youngest to Oldest

Shale with ammonite

Limestone with unknown fossil

Basalt

Sandstone with trilobite

Compare types of models. Which model of the human digestive system is most detailed?

A. Photograph of digestive system
B. Dissected pig
C. Artist drawing
D. 2D computer-generated model

Answers

The model of the Human digestive system that is most detailed is ( B ) : Dissected Pig

Pigs and Human have similar internal organs and the locations of each organ in both mammals are similar as well, therefore from the options the closest model that is most detailed as regards to the Human digestive system is a dissected pig.

A photograph of the digestive system does not provide a detailed model, also an artist drawing cannot provide as much detail as needed.  A 2d computer-generated model will only present the digestive system in 2 dimensions hence it is not detailed enough as well.

Hence the most detailed model is a Dissected pig model.

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What is the most common way sandstone is weathered?

Answers

Answer:

Hope desripction Helps! - Akito

Explanation:

Weathering and erosion are most rapid in areas of high relief, such as volcanic arcs, areas of continental rifting, and orogenic belts. Eroded sand is transported by rivers or by the wind from its source areas to depositional environments where tectonics has created accommodation space for sediments to accumulate.

Image result for What is the most common way sandstone is weathered?

Weathering and Transport of Sand

The grains of sand in a sandstone are usually particles of mineral, rock, or organic material that have been reduced to "sand" size by weathering and transported to their depositional site by the action of moving water, wind, or ice.

Answer:

Weathering and Transport of Sand

The grains of sand in a sandstone are usually particles of mineral, rock, or organic material that have been reduced to "sand" size by weathering and transported to their depositional site by the action of moving water, wind, or ice.

Explanation:

Please select the correct answer

Answers

Answer:

2nd option is correct..

correctly identifies at least one item that produces each of the five percussive tones (resonance, hyperresonance, dullness, flatness, and tympany

Answers

medsim respiratory system

Answer:

• pulmonary resonance: lungs are 99% air

• percussion notes:

Resonance : low, hollow, lasts , long

Hyperrsensonance: higher, booming, lasts long

Flatness: or Dullness : soft short

Tympany: high, drum-like

Explanation:

hope this helps :))


(1) Response to stimuli: Does the entity sense and respond to environmental change?
They just can reproduce when they are in the host

Answers

Answer:

Organisms need to detect and respond to changes in their internal and external environment. This is because the conditions inside our body must be carefully controlled for it to function effectively and survive. The control systems that allow organisms to respond to changes are incredibly important.

All control systems include:

Cells called receptors, which detect stimuli (changes in the environment).

The coordination centre, such as the brain, spinal cord or pancreas, which receives and processes information from receptors around the body.

Effectors which bring about responses, and restore optimum levels, such as core body temperature and blood glucose levels. Effectors include muscles and glands, and so responses can include muscle contractions or hormone release

Name the state of matter of each layer of the earth

Answers

Answer:

Name the state of matter of each layer of the earth... The crust and the inner core are solid, whereas the outer core and inner mantle are liquid. The outer mantle is semi solid.

Explanation:

brain is medial to what​

Answers

Answer:

Lateral is from the side; medial is towards the midline (often from a sagittal section); dorsal is looking from above; and ventral is looking from below. Brain Stem: pons, medulla, spinal cord.

Explanation:

All the biological macromolecules contain carbon hydrogen and oxygen however most do not contain nitrogen. The category that contains nitrogen are

Answers

Answer:

you mean science.

Explanation:

Answer:

B) Proteins

Explanation:

Proteins are the only biological macromolecules that does contain nitrogen is proteins. Carbhohydrates, Unsaturated fats, lipids all do not contain nitrogen

Explain the difference between asexual and sexual reproduction

Answers

Answer:

Asexual reproduction is when a living thing reproduces with only a single parent. Sexual reproduction involves two parents and chromosome change.

Explanation:

Ex of Asexual reproduction: Ferns, bacteria, animals, etc.

Ex of Sexual reproduction: Animals, some plants, etc.

(a)
2.
The diagrams below show the patterns produced on an oscilloscope by three
different sound waves.
M
А
B
с
(0)
Which two waves have the same loudness?
Write the letters.
and

Answers

Because it has to be that way

In the diagram attached, the option that shows the two waves have the same loudness is option A and C.

What is the statement about?

Note that in the diagram The letters may be in either order and both the letter and the correct explanation are need for the marking of the  their amplitudes as they are the same.

Therefore, In the diagram attached, the option that shows the two waves have the same loudness is option A and C.

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what does it mean if a solution has a ph of 3, 12, 2, 7, or 9

Answers

Acidic, basic, acidic, neutral, basic

The flow of genetic information in molecular biology follows the following path, A) DNA is translated into protein B) DNA is transcribed into RNA which is translated into protein C) DNA is translated into RNA which is transcribed into protein D) RNA is transcribed into protein

Answers

Answer:

The Correct answer is DNA is transcribed into RNA which is translated into protein

Explanation:

The genetic information is unidirectional, from DNA to proteins. First, DNA is transcribed into an intermediary RNA molecule is known as transcription (TC), a further messenger RNA molecule (mRNA) is translated into a corresponding sequence of amino acids (translation). This concept of information flow is known as the central dogma of molecular biology.

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Hi! help here thanks

Answers

Answer:

Observations are things that can be directly seen and talked about. Inferences are things that you believe correlate with each other. For instance, the dog wagging its tail must be happy because it is a guess, not a fact. An example of an observation is The girl is wearing a blue shirt with white straps because you can directly see it.

11. (a) Define the following terms (i) Spermatogenesis (ii) Oogenesis​

Answers

Answer:

A. answer

Spermatogenesis is a process farming of spermatoza from germ cell(spermatogonium/spermatogonial) that happened in seminiferous tubules of the testis.

B. answer

oogenesis is the formation of ovum or eggs,starts in the ovaries of the foetus before birth.

Which of the following is true about science and technology?
A.
Advancements in science cannot lead to advancements in technology, and technological advancements cannot lead to scientific advancements.

B.
Advancements in science can lead to advancements in technology, and technological advancements can also lead to scientific advancements.

C.
Advancements in science can lead to advancements in technology, but technological advancements cannot lead to scientific advancements.

D.
Advancements in science cannot lead to advancements in technology, but technological advancements can lead to scientific advancements.

Answers

B - Advancements in science can lead to advancements in technology, and technological advancements can also lead to scientific advancements.

What are the total number of subatomic particles found in the electron cloud of an Aluminum atom?

Answers

Answer:

13 electrons pls pls mark me branilest

Which phrase describes air pressure?

decreases with denser air
decreases as altitude decreases
equals mass divided by volume
decreases as a result of fewer air particles pushing down

Answers

decreases as a result of fewer air particles pushing down

The phrase which best describes air pressure is: decreases as a result of fewer air particles pushing down.

What is pressure?

Pressure can be defined as a measure of the force exerted per unit area of an object or physical body. Thus, it is usually measured in Newton per meter square and calculated by using this formula:

[tex]P = \frac{F}{A}[/tex]

Where:

P is the pressure.F is the force.A is the area.

The types of pressure.

In Science, there are different types of pressure and these include the following:

Hydrostatic pressureOsmotic pressure Filtration pressureAtmospheric (air) pressure

In conclusion, air pressure is also referred to as atmospheric pressure and it generally decreases due to fewer air particles pushing down on the surface of planet Earth.

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The marketing environment includes things such as demographic factors, economic factors, ecological factors, technology factors, political environment, and cultural environment.TrueFalse Write the equation of a line in slope-intercept form, y = mx + b, between the followingpoints: (2, 5) and (-4,-4). The value of 2 5^2 is 100. True or False?If n = 4, the value of the expression 28 - 12 + 2 is _____.A) 15 B) 17 C) 17/2 D) 21Please answer both! What is the salary range for a Blood Spatter Analyst? jennifer works at whataburger and earned 168.75 last week. If she worked 22.5 hours, how much does she earn per hour? Help please help help please please please Gloria collected 23 faintail and comet goldfish. There were 11 fewer fantails than comets. How many comets did Gloria have? R 3. The mean of 4 numbers is 8. Three of the numbers add up to 22. What is the last number? basically, Japan after the bubble burst experienced steadily falling inflation which eventually became deflation cut interest rates repeatedly eventually, hitting zero and remained depressed. Now, the blue line is real GDP per capita it didn't actually have a plunge at any point being a fast growing economy up to the end of the `80s. Japan basically, stagnated in terms of real per capita GDP with a few Wiggles. That's the infamous last decade in Japan One thing that I've been saying lately is that in light of what we've been going through- in all the world including Japan these last few months- Japan's lost decade is starting to look pretty good. There was no mass unemployment there was no extreme plunge in the economy, But it was certainly frustrating. -They slid into a recession that basically, never ended what was worse it was unresponsive -They slipped into a into an infection that was resistant to the usual antibioticsThat was a deeply alarming thing: Japan in his last decade was not a terrible place to live; It was not mass unemployment, It was not blood in the streets, but it was intense prolonged frustration of the inability to get that economy moving again. I wasn't alone obviously, in thinking about the Japanese example; I at least said Japan basically, looks a lot like us. If they can be caught in the trap like this for an extended period Why, can't it happen to to other countries? So there were a number of people worrying about that. It was on people's mind as a possibility, And the thing is it the it came true, we got into a situation of overextension excessive leverage and the mother of all housing bubbles. When all of that burst we were plunged into a recession- and the Fed had thought about how to deal with something like a Japanese trap- Their first rule was cut interest rates early and often basically, aggressive, initial monetary policy response which they did. But it wasn't enough and went all the way to zero ,and the economy is still shrinking found themselves in the liquidity trap.Now, this is where we begin the Alice Through the Looking class discussion a situation where short term interest rates are zero. Normally, monetary policy is made by cutting a target interest rate where you've gone all the way to the end of that that was named the liquidity trap. Meaning that you can normally increase the quantity of money. That means that people have more liquidity than they need, they lend it out, you get sort of chain reaction through the credit markets, that helps to expand the economy, But if interest rates are zero, people are saturated, they have as much liquidity as they want. This was advanced not in those words, but it's advanced as a central theme in Keynes's General Theory. It was somewhat formalized by john Hicks, but it's sort of vanished from consideration In economics you can actually sort of see why, But when something like it arrived in Japan and now, for all of us today a lot of people found it hard to believe that there was a widespread belief, that well look if the central bank prints a bunch of money that has to have an expansionary effect on the economy. In fact, it has to be inflationary I mean, we just know that printing money is inflationary. We have this, standard way that we do short term macroeconomics, the is model, but everybody who does that knows that it's ad hoc, It's not really grounded in micro foundations all these things that economists say, And presumably if you thought about it really carefully, and dotted all your I's and crossed all your T's, you would come to the conclusion that of course expanding the money supply is effective no matter what. And to my shock it actually gave me the opposite answer, "Liquidity trap can be real it really can be true that that printing money has no effect." On the reason once you think about it is pretty clear. Really, once you for whatever reason have gotten a situation where short term interest rates are zero Well, then you go and do conventional monetary policy. What is conventional monetary policy central bank prints some money; or more accurately credits banks with more reserves and buys up a bunch of treasury bills short term government debt can someone transcribe to clean verbatim transcribe Me style guidelines Plz plz plz plz plz plz Help convert 69 m 26cm into cm solv AC = 9x - 12, CD = 4x + 18, AD = ? How the languages are put here is that I don't know English and I need to ask a question in Spanish and no one here knows Spanish and I'm dead What is the solution of the equation m - 8 = -14? EJEMPLO ACul evento determinante en la lectura reafirma la relacinestrecha entre el narrador y Aquiles?O A. la huida del can de su casaOB. la bsqueda del perro perdidoMi perro AquilesTengo un perro llamado Aquiles. Un da Aquiles sali de la casa porun tnel que l mismo cav en la tierra. Cuando llegu de la escuelay no lo vi, me senti muy triste Sali a buscarlo por los alrededores yles pedi ayuda a todos mis amigos. Todos parecan felices con estaaventura, pero yo sentia mucha ansiedad por la posibilidad de noencontrarlo nunca ms. Al final del dia, casi derrotado y sin muchasesperanzas, atravesamos por un parque y vi que Aquiles estaba conotros perros. Lo llam con un fuerte silbido y, cuando me vio, mereconoci de inmediato Estoy seguro de que debe haber sentidocmo lata mi corazn porque, moviendo la cola con energia de unlado a otro, regres corriendo hacia m. Salt alegre hacia mishombros apoyndose en sus patas doradas. En ese momento mepuse muy contento por saber que Aquiles es tremendamenteinteligente porque sabe cunto lo queremos y necesitamos en casaMe siento muy seguro al lado de Aquiles. 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