what opposes the sliding motion of two
surfaces that are in contact.

Answers

Answer 1

Answer:

Friction: A force that opposes the motion of objects that touch as they move past each other. Friction acts at the surface where objects are in contact.

Explanation:

The force that acts against your pushing force is called friction. is a force that resists the motion between two surfaces in contact. When you try to slide two surfaces across each other, the force of friction resists the sliding motion.


Related Questions

What is the comparison and the differences between the structures of the stomach and the pancreas?

Answers

Answer:

Explanation:

The chyme produced from the stomach is highly acidic in nature; the pancreatic juices contain high levels of bicarbonate, an alkali that neutralizes the acidic chyme. Additionally, the pancreatic juices contain a large variety of enzymes that are required for the digestion of protein and carbohydrates.

Help with the picture

Answers

Bleaching I believe is the correct answer.

The outermost cells of the skin die and slough off because

Answers

Answer:

Explanation:

The keratinocytes: cells found in the outermost layer of the epidermis that produces fibrous protein which gives hair, nails, and skin their hardness and water-resistant properties dies as a result of their distance from the rich blood supply the cells of the next layer lie on top off. Due to less nutrients and oxygen, these cells die as they are pushed towards the surface of our skin.

Insulin is a hormone that travels through the blood and helps regulate blood sugar levels. Which best describes how insulin travels in the blood?
in the plasma
in the platelets
attached to the white blood cells
attached to the red blood cells

Answers

Answer:

A:in the plasma

Explanation:

Insulin regulates blood sugar levels and it travels in the plasma. Therefore option A is correct.

What is insulin?

Insulin is a hormone that is released by β-cells of the pancreas. It controls the amount of glucose in our bodies. It converts glucose into glycogen and then this glycogen is stored in the liver, and whenever the glucose level reduces in the blood, then this stored glycogen is converted into glucose. It also helps in breaking fat and protein for energy.

Insulin is a very important hormone for the regulation of glucose in the blood. A deficiency of insulin occurs when the immune system attacks islets and it causes diabetes, in this disease blood sugar level increases

.

Insulin flows in the blood through plasma. Therefore, option A is correct.

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The immunity rate is the ____________ variable. The number of people affected by the disease is the ___________ variable.

Answers

Answer: 1. independent , 2 . dependent

The immunity rate is an independent variable. The number of people affected by the disease is the  dependent  variable.

What is immune system?

The immune system protects our body from foreign invaders like  bacteria, viruses, and fungi, and other toxins.

In general 2 types of the immune system observed in human body.

The innate immune system rapid inheritable response system consist major organs like  skin, the eye's cornea, and the mucous membrane that lines the respiratory, gastrointestinal, and genitourinary tracts.

Secondly, the acquired immune system work with the innate system to make a special proteins named antibodies to protect our body from a specific invader.

Human immune system show variation in their production of immune components like cytokines play critical roles and it vary from person to person.

Hence, The immunity rate is an independent variable. The number of people affected by the disease is the  dependent  variable.

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If the bubbles given off by the plants were collected and tested, the gas present would MOST likely be

(A) oxygen
(B) hydrogen
(C) nitrogen
(D) carbon dioxide ​

Answers

Answer: D

Explanation: To prove that oxygen is a by-product of photosynthesis, you can set up an experiment with an aquatic plant and capture the gas it emits in response to photosynthesis.

what is a range of the lowest temperatures found at the top of the tropopause​

Answers

Answer:

62°F (17°C) to -60°F (-51°C) at the tropopause.

Which of these is most likely to become a carbon film ?
A sea creatures shell
A flowering plant
A tree trunk

Answers

Flowering plant. Hope this helps

Answer:

c- a flowering plant

Explanation:

Select all the following that describe isotopes of an element
_ Different numbers of neutrons
_ Different mass numbers
_ Different atomic numbers
_ Different numbers of protons

Answers

Answer: different number of neutrons and different mass numbers

Explanation:

The statements that describe isotopes of an element are:

Different numbers of neutrons.Different mass numbers.

What is an isotope?

An isotope is defined as varieties of atoms that have the same atomic number and therefore constitute the same element even though they have different mass numbers.

Characteristics of an isotope of an element

Atoms that are isotopes of each other have the same number of protons in the nucleus.

They are found in the same place within the periodic table.

Therefore, we can conclude that the isotopes of an element are atoms with the same atomic number but different mass numbers.

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What species does the mosquito belong to?

Answers

Answer:

Insects

Explanation:

Answer:

flies (order Diptera). Within Diptera they constitute the family Culicidae

Explanation:

Drag the tiles to the correct boxes to complete the pairs.
Match the whorl fingerprint subclasses to their descriptions.

Answers

Answer:

A loop with a whorl: central pocket loop

Two loops with an s pattern: double loop

irregular shaped whorl: accidental loop

series of loops with a common center: plain loop

Explanation:

Ok I believe its: Loop with a whorl- plain, 2 loops with a S pattern- double loop, Series of loops with a common center- central pocket loop, and the Irregular-shaped whorl is a accidental loop. If I helped please mark brainliest!! :)

Which of the following statements about oxidative phosphorylation by ATP synthase is FALSE? A) The electrochemical gradient across the inner mitochondrial membrane generated by electron flow is used to synthesize ATP. B) Uncouplers dissipate the electrochemical gradient but electron transport continues without ATP production. C) Inhibitors disrupt electron flow as well as ATP synthesis. D) A proton gradient alone without a corresponding energy input is not sufficient to drive the synthesis of ATP. E) ATP synthesis occurs via simultaneous conformational changes in protein subunits containing catalytic sites.

Answers

Answer

D)A proton gradient alone without a corresponding energy input is not sufficient to drive the synthesis of ATP

Explanation:

Oxidative phosphorylation reffers to metabolic pathway whereby enzyme is used by the cell to achieve nutrient oxidation, so that chemical energy of molecular oxygen is released as a result of this, adenosine triphosphate (ATP) is manufactured. oxidative phosphorylation is seen in all organisms that are aerobic in nature and it occur in the mitochondria of all eukaryotic organisms. There is electron transfer during oxidative phosphorylation, the electrons moves from the donor to the receptor and this is known as redox reaction, as a result of this energy is released, and this energy is used for formation of ATP.

Therefore,among all the options, A proton gradient alone without a corresponding energy input is not sufficient to drive the synthesis of ATP is the false statement.

g What basic characteristics do we generally expect to find in all things that qualify as being alive? Question 1 options: 1) an ability to: reason, make polymers and repair damage. 2) an ability to: reproduce, respond to stimuli and repair damage. 3) an ability to: avoid pain, move from one place to another and evolve. 4) an ability to: capture energy from sun light, move from one place to another and reshape its environment. 5) an ability to be more ordered than their surroundings, respond to stimuli, and capture energy from sunlight.

Answers

Answer:

Number 2: an ability to: reproduce, respond to stimuli and repair damage.

Explanation:

Some basic characteristics of all living things in general which they all have in common include:

The ability to reproduce (reproduction). All living things reproduce...

Ability to respond to stimuli (irritability)

Ability to repair damage: this is involved with cells in the organisms and to stay alive all organismsin general areade up of cells which has the ability to be repaired if damaged.

The equation AU = Q - W describes which one of the following?
O A. Second law of thermodynamics
O B. Efficiency of a heat engine
O C. Work done by a gas
O D. First law of thermodynamics
SUBMI

Answers

Answer:

D. First law of thermodynamics

Explanation:

The first law of thermodynamics refers that energy can be tranferred or changed form one form to another but it can neither be destroyed nor be created. hence, it is also known as law of conservation of energy.

The equation  ΔU = Q − W describes the first law of thermodynamics.

Where

U is the internl energy of the system.                                  ΔU is the change in U.                                                          Q refers to the total heat supplied into the system (include both addition and release of energy in the system).               W is the net work done by the system.

Hence, the correct option is D.

Answer:

Option D, First law of thermodynamics

Explanation:

The first law of thermodynamics states the following -

[tex]dU = Q-W[/tex]

where dU  represents the Heat added to the System

Q represents the Change in Internal Energy OR net heat transfer OR sum of all heat transferred into and out of the system

W represents the Work done on the system

The first law of thermodynamics is based on the application of the conservation of energy principle to heat and thermodynamic.  

hence, option D is correct

which species is the banana most closely related to?
lemon
onion
radish
seaweed

Answers

Answer:

onion

Explanation:

"Onions are most closely related to a) banana. Onions are part of the Amaryllidaceae family and bananas are part of the Musaceae family. They are both monocots, meaning the have one cotyledon, parallel leaf veins, and flower petals in multiples of three, among other distinctive characteristics. "

Answer:

Onions are most closely related to a) banana. Onions are part of the Amaryllidaceae family and bananas are part of the Musaceae family. They are both mono cots, meaning the have one cotyledon, parallel leaf veins, and flower petals in multiples of three, among other distinctive characteristics.

Hope this helps!

Please give as brainliest answer!!

Thanks!

Explanation:

Natural selection is an evolutionary mechanism by which

Answers

Answer:Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

Natural selection is the natural act in which nature picks and chooses who lives and who dies.

Recessive sex-linked traits such as color blindness appear more frequently in
males because

A. males inherit only one sex chromosome.
B. males inherit two copies of every sex-linked allele.
C. sex-linked alleles are carried only on Y chromosomes.
D. males inherit only one sex-linked allele.

Answers

The answer is D

Explanation: In humans, recessive sex-linked traits generally occur on the X chromosome. Since males are (XY), they will inherit only one sex-linked allele on their X chromosome.

Hope that helps! :)

Which resource is found in large quantities in China and is also imported into China from other countries?


tungsten


pearls


coal


timber

Answers

Answer:

Coal

Explanation:

China fulfills its demand for coal by purchasing it from regional neighbors. In 2017, its coal imports mainly came from Australia (79.9 million tons), Indonesia (35.2 million tons), Mongolia (33.5 million tons), and Russia (25.3 million tons).

Hope this helps

Have a great day!

HELP PLEASE!!!!
How would you describe the movement of the sun over 30 minutes?

Answers

Answer:

The Earth rotates from the west to east.  The Sun does not rotate around the Earth, in Thirty minutes. the sun would appear to be in a different part of the sky, and  that is because of the Earth's rotation.

Explanation:

Answer:

The sun is seen in a different part of the sky, but this is due to the rotation of the Earth. The intensity of light and heat changes as the Earth rotates. The speed of the sun changes the angle of the sky in 30 minutes, it is always moving from east to west, so in 30 minutes it will move further west, no matter what time you experiment.

I hope this helps!

75 POINTS!!! One reason male peacocks spread their tail feathers is to attract a mate. How does choosing a male with a bright, full tail increase a peahen’s chance of producing healthy peachicks?

Answers

Answer:

They have greater health conditions

Explanation:

if they are bright, they are healthy

Answer:

Typically, if a peacock has a bright tail with many feathers and eyespots, a female will choose him. These tail features indicate that the peacock may be healthier than other males and, therefore, produce healthier peachicks.

Explanation:

This is the sample response.

The codon, CAG, is being carried by a mRNA strand into the
cytoplasm. By using the Codon Chart, what amino acid will it code
for?

Answers

The answer is glutamine

When a plant generates food through photosynthesis, this food
A.
is always used as soon as it is converted into a form the plant can use.
OB
can be used immediately or stored for later use.
C.
can cause the plant to gain excess layers of fat.
OD
is stored for a short period of time, usually about three weeks,

Answers

Answer:

B:because plant will make the food,store it,or eat it.usually the plant will stored the food for the winter,because of the soil being frozen and barely any sunlight,it will make it hard for the plant to make more food during photosynthesis,sometimes the plants will die but come back when it is springtime.Once food is made it is used or saved for later use for energy.

Answer:

can be used immediately or stored for later use.

Explanation:

Energy generated through photosynthesis can be used immediately or stored for later use depending on the needs of the plant in its environment.

Sometimes, a plant needs to immediately put this energy into growing new branches or leaves. Other times, such as when a cold winter is approaching, it might be better for the plant to store the energy for later use

2.In what way is the plant’s vascular system like ours?



3.How have scientist classified all plants?


4.Give 2 examples of non-vascular plants. (This will take a little extra research.)


5.List the 2 major vascular tissues of a plant and tell what they do.

1.


2.

6.List the reactants and products of photosynthesis?


Reactants:


Products:


7.Both plant and animal cells have organelles. What are organelles?



8.Which organelle is responsible for photosynthesis?



9.Why is it incorrect to say plants “breathe” Carbon dioxide (CO2)?

10.Where would you expect to find plant cell with a high number of chloroplast?



11.What are the stomata and why are they important to the plant?



12.What is the job of the guard cells?



13.The venus fly trap or the pitcher plant are still considered plants. Why do they “eat” insects?



14 Your friend thinks mistletoe is normal plant. How could you explain why it is NOT considered a “normal” plant?

Answers

Answer:

2.The human circular system does pretty much the

same thing as a plant but the plant can also reproduce oxygen. The

human needs air so does a plant to live and make more air. The

human needs food so does a plant to stay healthy. The human needs

to drink water to live too so does the plant to stay alive

otherwise it will rot and fall apart.

Explanation:

The inner protective layer of the viral genetic information

Answers

Answer:

the capsid is the inner protective layer of the viral genetic information(rna)

How is food moved through the gut?
a. By peristalsis c. By waves of liquid
b. By gravity
d. Movement​

Answers

Explanation:

a. By peristalsis

..................

How long does it take for Earth to make one rotation on its axis? A. 1 day B. 1 month C. 1 hour D. 1 year

Answers

Answer- A

Explain- Because in order for the Earth to completly turn around, it takes around 23.8 hrs, which is about 1 day.

Answer:

A. 1 day

Explanation:

It only takes 23 hours, 56 minutes and 4.0916 seconds for the Earth to turn once its axis.

Part of an organism, possibly one or more bones, is referred to as the organism's __. will give brainlist

Answers

Answer:

Structure

Explanation:

Where is new ocean floor formed?​

Answers

Answer: Mid ocean ridges

Explanation:

Earth.

Answer:

Hey! New ocean floor is formed at mid-ocean ridges.

Explanation:

Meiosis reduces the chromosome number by

Answers

Answer:

i believe it's half and produces four gamete cells

Explanation:

From diploid to haploid so by HALF

which trait does the fly agaric and the palm have in common

Answers

For example, a gecko, fly agaric (fungus), and a palm tree all have cells with nuclei, but a gecko and fly agaric are both heterotrophic (making them more closely related) while a palm tree is a photosynthetic autotroph
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PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!! Solve: 3(x - 6) = -12 7.The firm has an inventory period of 84.6 days, an accounts payable period of 43.2 days, and an accounts receivable period of 41.7 days. Management is considering an offer from their suppliers to pay within 10 days and receive a discount of 2 percent. If the new discount is taken, the accounts payable period is expected to decline by 30.4 days. What will be the new operating cycle given the change in the payables period How did the infrastructure of West African colonies lead to pooreconomies when they became independent countries? The probability that an egg on a production line is cracked is 0.01. Two eggs are selected at random from the production line. Find the probability that at least one egg is cracked. Write the entire decimal answer. What times 55 would equal 200 what is the definition of 'illumination' Discuss and DecideWhich type of character do you usually encounter in the stories you read, acharacter developed by direct characterization or by indirect characterization?Cite text evidence in your discussion. True or falseThe solution to the inequality 5x+2 Describe the economic and political factors involved in building a network of roads canals and railroads without calculating steven says that prisms A and B have the same volume. Explain why Steven is correct Please help WILL GIVE BRAINLIEST Now move points C, D, and E on the circle, and note the interior angle measurements for the quadrilateral in the table below. Notice that mB is predetermined, so set that angle measure first. Which of the following types of networks encrypts data for transmitting overa long distance?A. Wireless local area networkB. Virtual private network (VPN)C. Local area network (LAN)D. Personal area network (PAN) *place holder since picture has the work* Then I walked into Mr. and Mrs. Franks bedroom. On the floor, amidst the chaos of papers and books, my eye lit on the little red-orange checkered, cloth-bound diary . . .Quickly, we gathered up handfuls of pages in Annes scrawling handwriting. My heart beat in fear that the Austrian would return andcatch us among the now-captured Jewishpossessions. . . .I opened the bottom drawer of my desk and began to pile in the diary . . . I told Elli, I will keep everything. I took the papers she was holding and continued filling the drawer. Ill keep everything safe for Anne until she comes back.Anne Frank RememberedMiep GiesWhich sentences are examples of strong notes for this passage? Check all that apply.A) Miep walked into the bedroom.B) Miep found Annes diary in the bedroom.C) Mieps heart beat quickly.D) Miep was afraid of being caught.E) Miep filled the drawer [2x + 3y = 1][5x - 4y = 14] Angle a =8x+6 Angle b= 4x+38Solve for x and find the measure of angle b In the space below, list five potential topics for your research paper. For each of thesetopics, write down one big question that you want to answer in your paper. Write down all the factors of 15.