how is the frictional force produced?​

Answers

Answer 1

Answer:

Frictional force refers to the force generated by two surfaces that contacts and slide against each other, If an object is pushed against the surface, then the frictional force will be increased and becomes more than the weight of the object


Related Questions

Which concept is illustrated in the flowchart below?

Overproduction arrow pointing Struggle for survival arrow pointing Survival of the fittest arrow pointing Changes in traits of species

Dynamic equilibrium
Genetic manipulation
Material cycles
Natural selection

Answers

Answer:

Natrual selection

Explanation:

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The concept illustrated in the flowchart is Natural selection. The correct option is 4.

What is natural selection?

Natural selection is the process by which species evolve over time as the prevalence of certain traits increases or decreases in a population.

Natural selection, the mechanism by which species evolve over time, is depicted in the flowchart.

Overproduction of offspring causes competition for limited resources, resulting in a struggle for survival.

Based on their inherited characteristics, some people are better equipped to survive and reproduce than others.

These people are said to be "fit," and they are more likely to pass on their positive traits to their children. These advantageous traits become more common in the population over time, causing changes in the species as a whole.

Thus, the correct option is 4.

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Your question seems incomplete, the probable complete question is:

define the term gene mutation​

Answers

Answer:

it is the change in one or more genes

the scientific name of the great egret has recently been changed from Casmerodius albus to Ardea alba. What is a possible reason for the reclassification of egrets?
A) Allopatric speciation
B) Discovery of a different ancestor
C) A change in the mating behaviors
D) A change in their habitat and geological range

Answers

Answer:

B) Discovery of different ancestry

Explanation:

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Kể tên các biện pháp đấu tranh sinh học. Cho ví dụ. Biện pháp đấu tranh sinh học có những ưu điểm gì?

Answers

Answer:

means translate in English . if I can help I will.

What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions?

A. Binary Fission
B. Fusion
C. Differentiation
D. Meiosis

Answers

Answer: The answer is C which is differentiation

C. Differentiation.

Some of the cell membrane functions are similar to the ________ of the body.

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the skin has cells like that

An actin-binding protein called cofilin binds preferentially to ADP-containing actin filaments rather than ATP-containing actin filaments. Based on this preference, which is true? Question 7 options: Cofilin binds to the plus ends of treadmilling actin filaments. Cofilin competes with profilin for binding to actin. Cofilin binds to older actin filaments. Cofilin binds to the plus ends of actin filaments.

Answers

Answer:

Cofilin binds to older actin filaments

Explanation:

Microfilaments (also called actin filaments) are a class of protein filament common to all eukaryotic cells, which consist of two strands of subunits of the protein actin. Microfilaments form part of the cell's cytoskeleton and interact with the protein myosin in order to allow the movement of the cell. Within the cell, actin may show two different forms: monomeric G-actin and polymeric F-actin filaments. Microfilaments provide shape to the cell because these filaments can depolymerize (disassemble) and polymerize (assembly) quickly, thereby allowing the cell to change its shape. During the polymerization process, the ATP that is bound to G-actin is hydrolyzed to ADP, which is bound to F-actin. ATP-actin subunits are present at the barbed ends of the filaments, and cleavage of the ATP molecules produces highly stable filaments bound to ADP. In consequence, it is expected that cofilin binds preferentially to highly stable (older) filaments ADP-actin filaments instead of ATP-actin filaments.

Which of the following terms is the life
cycle of a living cell?
A. g1
B. cell cycle
C. interphase
D. mitosis

Answers

Answer:

cell cycle is the term of the life cycle of a living cell

carbohydrate are store in animal cell in the form of​

Answers

Answer:

molecule glycogen

Plants store carbohydrates in long polysaccharides chains called starch, while animals store carbohydrates as the molecule glycogen.

Glycogen molecule, which is found in the cytosol of the cell

Tania looks at several different multivitamins in the store and notes that there are many different formulations with
varying amounts of several types of vitamins. She would like to choose a brand that only has the essential vitamins
that humans need to consume.
What are the vitamins that Tania should verify are in the product that she purchases?
O vitamins A, B, C, D, E, and K
O vitamins A, B, C, E, and K
O vitamins A, B, C, D, and E
O vitamins A, B, C, D, E, F, and K

Answers

The answer is A.

There are 13 essential vitamins. Vitamins A, the multiple B vitamins, C, D, E, and K.

Predict: Some pathogens are spread directly from one person to another. This can happen when people come into direct contact or share items, such as drinking glasses. What do you think might affect how quickly a pathogen is spread from person to person?

Answers

I think the reservoir ( a human,animal or non living such as soil where the infectious agent normally lives)

secondly the mode of transmission,there are some modes of transmission that allow the pathogen to enter quickly and some that make the process slow.

and also crowding and the presence of co-infections.

i hope this helps

2) ¿Cuál de los siguientes hechos no es una evidencia de una reacción química? a) Presencia de un catalizador b) Cambio de color d) Liberación de gas​

Answers

Answer:

a) Presencia de un catalizador

Explanation:

Los dos tipos de cambios que experimentan las sustancias en la química son cambios químicos y físicos.

Un cambio físico es un cambio es un cambio en el que la sustancia cambia en su apariencia o su forma de una manera que es reversible y en la que no se forma una nueva sustancia.

Un cambio químico es aquel en el que hay un cambio en las sustancias presentes y se forma una nueva sustancia.

La evidencia de que ha tenido lugar un cambio químico incluye

1) La formación de un precipitado a partir de la mezcla de sustancias.

2) Un cambio en el color de las sustancias.

3) Un cambio en el olfato (que desprende un olor) o en el sabor.

4) La sustancia produce luz (brilla)

5) El volumen total cambia

6) Cambio de temperatura (la mezcla se calienta o enfría)

Por lo tanto, la presencia de un catalizador, que es una sustancia que no participa en una reacción pero aumenta la velocidad de reacción, no es evidencia de una reacción química.

do fertilised eggs divide to form a foetus

Answers

For the first 12 hours after conception, the fertilized egg remains a single cell. ... During the first 8 or 9 days after conception, the cells that will eventually form the embryo continue to divide
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Which is a molecule found in the body?
O urethra
O nutrients
O atoms
O water

Answers

Answer:

water

Explanation:

Answer:

Water

Explanation:

How Can I Explain Why A Theory Is Also A Hypothesis?

Answers

Answer:

well a hypothesis is literally a scientific assumption or theory used to describe what they think is going to happen during a experiment

pls answer this question i think easy

Answers

Answer:c

Explanation:it must be c if im wrong then sue me!

Answer:

B. Food is broken into simpler molecules.

Explanation:

these small molecules are; proteins, amino acids, glucose, e.t.c

Though plants, fungi, and prokaryotes all have cell walls, we place them in different taxa. Which of these observations comes closest to explaining the basis for placing these organisms in different taxa, well before relevant data from molecular systematics became available?

Answers

Answer:

Due to other differences.

Explanation:

The plants, fungi, and prokaryotes all have cell walls, we place them in different taxa because of the other differences such as mobility, mode of nutrition etc. Plants and fungi are not mobile means can not move from one place to another whereas prokaryotes are mobile. Fungi and prokaryotes are heterotrophs means that feed on other organism whereas plants are autotrophs means make their own food. There is also difference in their cell wall i.e. the cell of plants is composed of cellulose, the cell wall of prokaryotes especially bacteria is composed of peptidoglycans and the cell wall of fungi is composed of chitin.

Does cellular respiration follow the law of conservation of energy?

Answers

Yes. Every chemical reaction obeys the law of conservation of mass.

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Match the following STDs with their descriptions. 1. can cause sores, rashes, dementia, or blindness gonorrhea 2. can cause burning urination and infertility chlamydia 3. similar to gonorrhea but more likely to be carried unknowingly syphilis 4. parasitic STD causing genital irritation and mild discharge 5 crabs 5. pubic lice that cause itching trichomoniasis 6. untreatable STD causing periodic outbreaks of blisters 1 HPV 7. can cause genital warts or cervical cancer 6 genital herpes

Answers

Answer:

1. Syphilis

2. Gonorrhea

3. Chlamydia

4. Trichomoniasis

5. Crabs

6. Genital herpes

7. HPV

Explanation:

STD is an acronym for sexually transmitted disease and it can be defined as diseases that are easily transmissible or contractable from another person through sexual intercourse. Thus, STD spread from an infected person to an uninfected person while engaging in unprotected sexual intercourse. Some examples of STDs are gonorrhea, chlamydia, syphilis, HIV, HPV, etc.

Generally, contracting STDs has a detrimental effect to a patient because it causes an opening (break) or sore in the body of the carrier (patient) and as such making them vulnerable to diseases that are spread through bodily fluids e.g human immunodeficiency virus (HIV), Hepatitis, staphylococcus, AIDS, etc.

1. Syphilis: can cause sores, rashes, dementia, or blindness.

2. Gonorrhea: can cause burning urination and infertility

3. Chlamydia: similar to gonorrhea but more likely to be carried unknowingly

4. Trichomoniasis: parasitic STD causing genital irritation and mild discharge.

5. Crabs: pubic lice that cause itching.

6. Genital herpes: untreatable STD causing periodic outbreaks of blisters

7. HPV: can cause genital warts or cervical cancer. HPV is an abbreviation for human papillomavirus and it's a virus that causes most common sexually transmitted infection, giving rise to skin or mucous membrane growths (warts).

Answer:

1) syphilis

2) gonorrhea

3) chlamydia

4) trichomoniasis

5) crabs

6) genital herpes

7) HPV

Why ulva is not placed in kingdom plantae

Answers

Answer:

Because Ulva is an algae. Algae belongs to kingdom Protista.

Explanation:

Ulva is a Macroalgae because it's not microscopic.

Macroalgae is not considered as a plant due to their structure. Macroalgae do not have specialized organs and tissues, and they are not vascularized. They also do not have the capacity to form a structure with flowers, leaves, roots or a stem.  

Binary Fission and Mitosis are similar processes. One way they are different is that: A. In Binary Fission, the DNA does not form into chromosomes. B. They both split by growing a new cell wall. C. In Mitosis, the DNA does not form into chromosomes. O D. Binary Fission only occurs in Eukaryotes.

Answers

Answer:

C. In Mitosis, the DNA does not form into chromosomes

Convert 90 centuries to minutes using the method of dimensional analysis.

Answers

[tex]\huge\text{Hey there!}[/tex]

“[tex]\large\text{Convert 400 mm to m}[/tex]”

[tex]\large\text{Just simply divide 400 by 1,000 and you will have your result.}[/tex]

[tex]\mathsf{\dfrac{400}{1,000}}[/tex]

[tex]\mathsf{= \dfrac{400\div200}{1,000\div200}}[/tex]

[tex]\mathsf{400\div 200 = \bf 2}[/tex]

[tex]\mathsf{1,000 \div 200 = \bf 5}[/tex]

[tex]\mathsf{= \bf \dfrac{2}{5}}\rightarrow\mathsf{\bf 0.4}[/tex]

[tex]\boxed{\huge\textsf{Therefore, your ANSWER is: \boxed{\bf \dfrac{2}{5} \ or \ 0.4}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Dose anyone know the answer

Answers

Answer:

Anthracite is the answer

Complete the following statement using the choices below. Air moves out of the lungs when the pressure inside the lungs is ________. less than the pressure in the atmosphere greater than the intra-alveolar pressure greater than the pressure in the atmosphere equal to the pressure in the atmosphere

Answers

Answer:

Air moves out of the lungs when the pressure in the lungs is greater than the pressure in the atmosphere.

¿Cuál es la importancia de la colonización de habitad para la ecología?

Answers

Answer:

i dont speak spanish so ya but thanks for the points

Explanation:

¿Qué proceso debe realizar un organismo para perpetuarse a través del tiempo?

Answers

Answer:

evolución

Explanation:

What is the best description of connective tissue? Question 3 options: All of its cells rest on a basal lamina. All of its cells associate via cadherins in their plasma membrane. All of its cells are electrically connected via gap junctions. All of its cells are sparsely distributed in the extracellular matrix.

Answers

Answer:

Connective tissue is a group of tissues in the body that keep the body and its organs in shape while also providing cohesion and internal support.

All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.

What is connective tissue?

Tissue that sustains, protects and provides structure to other tissues and organs in the body. Connective tissue also stores fat, permits the movement of nutrients and other substances between tissues and organs, and allows the repair of damaged tissue. Connective tissue exists created up of cells, fibers, and a gel-like substance.

Connective tissue is discovered in between other tissues everywhere in the body, including the nervous system. The three outer membranes (the meninges) that surround the brain and spinal cord exist composed of dense inert connective tissue.

Connective tissues bind systems together, form a framework and support for organs and the body as a whole, store fat, transport substances, defend against disease, and assist restoration of tissue damage.

Hence, All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.

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predict what happen to the human and the plants if the transport system are affected​

Answers

I think we'll be scared and panicked and some people will die of overthinking

Conrad is studying for class. To remember the term _____, he uses the analogy of a thermostat in a house. For instance, when the temperature falls below the set point, the heat will turn on to correct the temperature. allostasis epistasis homeostasis biostasis

Answers

Answer:

Think its homeostasis

Explanation:

After phosphates and nitrates have entered a water
system, identify the correct steps of Eutrophication.
I. Oxygen levels drop
II. Underwater plants die
III. Fish and invertebrates die
IV. Algae grows rapidly
A. II, III, IV, I
B. IV, II, I, III
C. I, III, IV, II
D. III, II, I, IV

Answers

After phosphates and nitrates enter a water system, the steps of eutrophication include the rapid growth of algae, death of underwater plant species, depletion of oxygen in the water, and the death of fishes and invertebrates. The correct option would be B.

Eutrophication refers to the excessive enrichment of water bodies by nutrients such as phosphates and nitrates thereby facilitating the rapid growth of some aquatic species with negative effects.

Once a water body becomes excessively enriched with phosphates and nitrates, the following is a sequence of events that follows:

Algal bloom: the nutrients facilitate the rapid growth of algaeThe bloom of algal species results in the death of underwater plants as a result of inadequate light.The death of the underwater plants and the accompanying microbial activities in decomposing them cause oxygen levels in the water to drop.Reduction in oxygen level causes fishes and other water invertebrates to die due to hypoxia

Therefore, the correct steps of eutrophication according to the illustration is IV, II, I, and III.

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Other Questions
newtons second law lab report link Sympathyby Paul DunbarI know what the caged bird feels, alas!When the sun is bright on the upland slopes;When the wind stirs soft through the springing grass,And the river flows like a stream of glass;When the first bird sings and the first bud opes,And the faint perfume from its chalice stealsI know what the caged bird feels!I know why the caged bird beats his wingTill its blood is red on the cruel bars;For he must fly back to his perch and clingWhen he fain would be on the bough a-swing;And a pain still throbs in the old, old scarsAnd they pulse again with a keener stingI know why he beats his wing!I know why the caged bird sings, ah me,When his wing is bruised and his bosom sore,When he beats his bars and he would be free;It is not a carol of joy or glee,But a prayer that he sends from his hearts deep core,But a plea, that upward to Heaven he flingsI know why the caged bird sings!15Select the correct answer.What is the mood of the poem?A. alarmedB. compassionateC. melancholicD. regretful Which of the following changes in the state of a substance results in an increase in the entropy? Gas to solid Gas to liquid Liquid to solid Solid to liquid Tanks Machine guns Poison gas Flamethrowers AirplanesThese new military technologies resulted in a huge expansion of the military tactic known as trench warfare and made _______ the most deadly war up to that point in history.a.Vietnamb.World War Ic.World War IId.American Civil War Which statement best explains the existence of resistance movements in Eastern Europe?People were generally satisfied with their way of life.People wanted to break free from the Soviet Union and communist rule.The command economy created prosperity. Renata moved to her new home a few years ago. Back then, the young oak tree in her back yard was 190190190 centimeters tall. She measured it once a year and found that it grew at a constant rate. 333 years after she moved into the house, the tree was 274274274 centimeters tall. When can exponential growth happen?O A. When there are limited resourcesO B. When the death rate is highHanO C. When carrying capacity is reachedO D. When there is no competition Lyon walked 3/4 mile from school to the soccer field.He then walked 1/6 mile home.About how many miles did Lyon walk? A tin of paint covers a surface area of 50m2. Each tin costs 5.60. The entire surface of a solid cylindrical rod with diameter 8m and height 12m needs to be painted. Find the minimum cost of painting the rod. (NO NEED FOR EXLENATION) Find the volume Help me please PLEASE I NEED ANSWER ILL GIVE BRAINLIESTwhat part of speech are the underlined words in this sentence?Jessica left her book in the cafeteria, but when she went back to get it, she cant find it ---- ------ ----- ----NounAdjectiveVerbPronoun ANSWER ASAP ILL MARK BRAINLIEST!!!!find all the real zeros of the quadratic function.f(x)=2x-6x-1 What is the y-intercept of the line y+11= -2(x+5)? Would this be 20? I'm confused on what the problem is asking here. wat iz dis bul crupi was literally THE hardest math problem EVER The word "hay" best translates toa. thereb. isc. "here is" or "here are"d. "there is" or "there are"Please select the best answer from the choices provided Please help!! Take a factor out of the square root: Express 2x^2-12x-7 in the form a(x+b)^2+c Which sentence has the mistake? "1. No matter what we try, we can't seem to make Beth laugh. 2 We have taken her tocomedy shows, to the circus and to movies and she just wasn't amused. 3. Maybe she doesn't have a sense of humor.4. It looks like their is nothing we can do."estion Progress Use the following selected information from Wheeler, LLC to determine the 2017 and 2016 common size percentages for cost of goods sold using Net sales as the base. 2017 2016Net sales $522,200 $423,400Cost of goods sold 219,400 135,440Operating expenses 79,990 $77,090Net earnings 40,420 28,670a. 42.0% for 2017 and 32.0% for 2016.b. 7.7% for 2017 and 6.8% for 2016.c. 123.3% for 2017 and 100.0% for 2016.d. 57.3% for 2017 and 50.2% for 2016.e. 174.4% for 2017 and 199.2% for 2016.