When you ice skate, the heat generated by the blade of the skate rubbing against the ice causes some of the ice right under the blade to melt. This water acts like a lubricant under the skate that allows the skate to slide.What causes the ice to melt under the blade?

A) weight
B) friction
C) magnetic energy
D) electromagnetic energy

Answers

Answer 1

Answer:

Friction

Explanation:

When an object comes into contact with another object, friction is created, some objects have lower or higher friction when they meet each other, tires and the road for instance. Wheels are designed to lower friction, just as an ice skate is made to glide across the ice.


Related Questions

Was the ancestor terrestrial, aquatic, or live on both land and in water?

Answers

Answer:

Starting about 375 million years ago, transitional “fishapods,” with both primitive, fish-like traits and adaptations for semi-aquatic living, begin to appear in the fossil record.

The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds. Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to have “drip tips” that allow the water to run off of the leaves.

What type of adaptations are these?

Answers

Answer:

The Toucan, as an animal, has to eat. So, the Toucan developed a more aggressive adaptation to get food. On the other hand, the Monstera Plant had to do something about the mold situation. So, it developed a less aggressive adaptation, more of a defensive one, to combat its issues.

Explanation:

Since different species of penguin may occupy the same habitat, explain why they may continue to remain separate species.

Answers

Answer:

Some penguins may live in the same location that doesn't mean they have to be the same species of a penguin. They may not be attracted to other species that live there.

Explanation:

same as above

Who developed a system for naming and classifying organisms that is still used today?.

Answers

Answer: Carolus Linnaeus

Explanation:

Carlos Linnaeus created the binomial nomenclature system which gives scientific names to animals. Their genus and species is what classifies organisms.

Linnaeus also created the taxonomic system, which classifies organisms within different groups and subsets.

hope this helped! ♡

Carl Linnaeus, also known as Carl von Linné or Carolus Linnaeus, is often called the Father of Taxonomy. His system for naming, ranking, and classifying organisms is still in wide use today (with many changes).

please answer this correctly I will brainlist u

as a student , what can you do to protect the soil and water from being polluted ?​

Answers

you can build a filter system and have multiple different areas for recycling things

Hello people ~
From a cross AABb x aaBb, the genotypes AaBB : AaBb : Aabb will be obtained in the ratio
(a) 1:1:2
(b) 1:2:1
(c) 2:1:1
(d) 2:1:2​

Answers

Answer:

(b) 1:2:1

Explanation:

Using a dihybrid cross, when we cross AABb X aaBb, we get the genotypes AaBB, AaBb, and Aabb in the ratio 1:2:1. The aabb genotype will not be produced.

I am joyous to assist you at any time.

Answer:

Option B

Explanation:

1:2:1

Hope this help

The failure of the brain to work properly would most directly affect the what?

Answers

Answer:

The nervous system

It involves the brain

The nervous system, because the brain is apart of it.

Which of the following is a concern in using genetic engineering in agriculture?
Group of answer choices
A. Pests are more likely to destroy genetically modified crops
B. The gene added to the crop may trigger allergies or other health concerns.
C. Genetically engineering crops is inexpensive, which harms small farmers.
D. All genetically engineered crops must be grown in a certain type of soil.

Answers

Answer:

B

Explanation:

Genetic engineering can affect health and the environment. Plus, it can trigger allergies.

When should dna be replicated? what life events would include dna replication?.

Answers

Answer:

During growth and development i.e, as you get bigger because the cells are multiplying in number.

During repair of worn out cells and tissues e.g if you get a cut.

(It also happens in your hair and skin, but, I wouldn't label these as "life events"

Hope this helps(:

If a substitution of one nitrogen base for another nitrogen base occurs in this change has no effect on amino acid being called for this would be known as a

Answers

Answer:

Point mutation

Explanation:

Since it does not alter the amino acid, it would be a point mutation (unless if it did change the amino acid, it would be a frameshift mutation).

What are the steps of photosynthesis? How do they take place?

Answers

Hopefully my answer helps you out today.

Explanation: "The process of Photosynthesis is simple."

The process of photosynthesis can be divided into four steps.

The process: The first step in photosynthesis is the absorption of light by the sun that is attached to the proteins in the thylakoids of chloroplasts.

Electron Transfer. ...

Generation of ATP. ...    ATP is Energy-carrying molecule found in the cells of all living things.

Carbon Fixation.

                        Have a fantastic day or night!

There is a total of the 4 major steps in photosynthesis. Photosynthesis is the method plants use sunlight, water, and carbon dioxide to create oxygen.

What is the process of photosynthesis?

During photosynthesis, flora absorbs carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, which means it loses electrons, at the same time as the carbon dioxide is reduced, which means it profits electrons.  

It is handy to divide the photosynthetic method in flora into 4 stages, every happening in a described location of the chloroplast:

(1) absorption of light, (2) electron delivery main to the discount of NADP+ to NADPH, (3) technology of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).

To learn more about photosynthesis refer link:

https://brainly.com/question/3529377

#SPJ4

name a national park that is located in the Midwestern and development region​

Answers

Answer:

Here are some national parks lol:

Badlands National Park (SD) Cuyahoga Valley National Park (OH) Gateway Arch National Park (MO) Hot Springs National Park (AR) Indiana Dunes National Lakeshore (IN) Isle Royale National Park (MI) Theodore Roosevelt National Park (ND) Voyageurs National Park (MN) Wind Cave National Park (SD)

Explanation:

what pair of species is the most closely related

Answers

Answer:

whales (order Cetacea) and hippopotamuses (order Artiodactyla)?

Explanation:

Does this help you???

What is the general term for viruses and bacteria that make us sick?.

Answers

It could be germs or microbes

the diagram shows represents the number and age of fossils found in the grand canyon. the width of each shaded area in the diagram indicates the relative number of fossils found. which of the following statements is best supported by the fossil record

Answers

The fossil record from the grand canyon shows that organisms in group D were able to survive and remain relatively stable for the longest duration.

What are fossils?

Fossils are remains of plantsand animals that have been preserved for a long time within rocks and underground.

The fossils records found in the grand canyon shows that the organisms in group D remained relatively unchanged while other organisms either went extinct or kept undergoing changes in their population.

Therefore, it can be concluded that the organisms in group D were able to survive and remain relatively stable for the longest duration.

Learn more about fossils at: https://brainly.com/question/11224681

Lipids are non polar what does this mean?

Answers

Answer:

[tex]\sf\fbox\red{Answer:-}[/tex]

The charge distribution is evenly distributed, and the molecules do not have positive and negatively charged ends.

[tex]\small\fbox{\blue{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}[/tex]

Answer:

lipids are nonpolar moecules which means their ends are not charged. Because they are nonpolar and water is polar lipids are not soluble in water. That means the lipid molecules and water molecules do not bond or share electrons in any way. Hope this helps

The __________ collect(s) urine, which drains continuously from the papillae, and empty it into the __________

Answers

The calyces collect urine, which drains continuously from the papillae, and empty it into the renal pelvis.

What are the calyces?

The calyces are specialized chambers located in the kidneys which are required to pass the liquid (i.e., the urine).

The calyces are fundamental for the normal functioning of the urinary system and normal body functioning.

The renal pelvis refers to the renal portion of the structure known as the pelvis (it is a bone structure).

Learn more about the renal pelvis here:

https://brainly.com/question/3520839

consequences of recent human migrations on human health

Answers

Explanation:

The most frequent health problems of newly arrived refugees and migrants include accidental injuries, hypothermia, burns, gastrointestinal illnesses, cardiovascular events, pregnancy- and delivery-related complications, diabetes and hypertension.

What do plantations or farms help people to live?

Answers

Answer:

Plantations and farms provide food for people so there won't be starvation

Why is it important to be aware of Wisconsin’s karst features

Answers

Answer:

The cracks and crevasses in karst act as direct conduits for pollutants to enter groundwater, wells, springs, and streams. If you've got a sinkhole, you've got karst. Protect your groundwater and wells by being careful about what you spread in these areas.

What do statements are true about a punt square

Answers

Answer:

Punnett squares predict the probability of different genotypes in offspring

Hope it helps

TC

have a great Time

Smith Auto uses a sales journal, purchases journal, cash receipts journal, cash payments journal, and general journal

Answers

The general journal of Smith Auto will be the first place where the company will record its data.

What is a journal?

The general journal is illustrated below:

July 3:

Debit inventory $3100

Credit Account payable $3100

July 6:

Debit Cash $600

Credit Sales revenue $600

Debit Cost of goods sold $450

Credit Inventory $450

July 7

Debit Equipment $5000

Credit Capital $5000

July 9

Debit Account receivable $750.

Credit Equipment $750

July 13

Debit Account receivable Bell $3200

Credit Sales revenue $3200

Debit Cost of goods sold = $2800

Credit Inventory = $2800

July 15

Debit Sales return $500

Credit Account receivable $500

July 22

Debit Building $20000

Credit Notes payable $20000

July 26

Debit Salaries expense $4400

Credit Cash $4400

Learn more about journal on:

https://brainly.com/question/14279491

Which chromosomes shown below are homologous?
A) B and C
B) D and B
C) C and A
D) A and B

Answers

The answer is A) B and C

The chromosomes shown below are homologous: C and A, which are in option C as Homologous chromosomes are a pair of chromosomes that carry genes for the same traits, such as eye color or height.

What are homologous chromosomes?

Homologous chromosomes are important for the process of meiosis, which is the type of cell division that produces gametes (sex cells) in eukaryotes. During meiosis, homologous chromosomes pair up and exchange genetic material in a process called crossing over. This allows for the mixing and shuffling of genetic information, which increases genetic diversity and contributes to the evolution of populations.

Hence, the chromosomes shown below are homologous in C and A, which are in option C. Homologous chromosomes are a pair of chromosomes that carry genes for the same traits, such as eye color or height.

Learn more about homologous chromosomes here.

https://brainly.com/question/30371167

#SPJ2

17. Which physical law states that all orbits are conic sections?
A. Kepler's first law
OB. Kepler's third law
O C. Newton's laws
D. Kepler's second and third laws

Answers

D. Kepler’s second and third law’s

Answer:

Keplar's First Law

Explanation:

#PennFoster

JHMS

What 3 things increase CO2 in the atmosphere?
I need the answers asap
Please

Answers

Answer:

Deforestation

Burning of fossil fuels

for energy and transportation

Answer:

Volcanic Eruptions, burning fossil fuels, deforestation, fluorinated gases

Explanation:

Natural:

Volcanic Eruptions

Human:

Deforestation, Burning of fossil fuels, use of fluorinated gases

What are amino acids used for? ASAP

Answers

Answer:

Break down food, grow, repair body tissue

Explanation:

Where are the renal corpuscles found in the kidney?.

Answers

Answer:

Cortex

Explanation:

The renal corpuscles are found in the cortex of the kidney. The collecting ducts make up the majority of the medulla. As a result, the presence or absence of renal corpuscles can be used to distinguish the cortex and medulla.

~

Match the following.
1 .
omnivores
2 .
herbivores
3 .
scavengers
4 .
carnivores

wolves, coyotes

cattle, deer, mice

owls, snakes, alligators

hyenas, crows, vultures

Answers

Answer:

1. wolves, coyotes

2. cattle, deer, mice

3. hyenas, crows, vultures

4. owls, snakes. alligators

Will mark brainliest if the answer is correct: ""how does the presence of reptilian and mammalian nephrons provide evidence for the relatedness of birds and other vertebrates?""

Answers

Answer:

Nephrons in birds, mammals, and reptiles are all extremely similar, more so than other structures in the bodies of different species, solidifying the relatedness through similarity.

Explanation:

Birds can be said to have "mammal-like" nephrons from the number of loops and overall structure of their kidneys, which, although they look very different, serve the same purpose and do it in largely the same way. Reptiles also have mammal-like nephrons, and it can be assumed that this evolutionary trait was kept because the specific structure of the nephrons is generally the most efficient.

The presence of reptilian and mammalian nephrons provide evidence for the relatedness of birds and other vertebrates because the nephrons are similar to that of reptiles and mammals and other birds and vertebrates.

What are nephrons?

Nephrons are the functional unit of the kidney. There are many nephrons present in a kidney, it contains tubules and corpuscles.

The formation of urination is done by nephrons, the three functions of nephrons are filtration, reabsorption and secretion.

Thus, the presence of reptilian and mammalian nephrons provide evidence for the relatedness of birds and other vertebrates because the nephrons are similar to that of reptiles and mammals and other birds and vertebrates.

Learn more about nephrons

https://brainly.com/question/12307837

#SPJ2

Select the BEST reason that humans engage in selective breeding/artificial selection:

Answers

Not Specific Enough, but the best reason in my opinion would be:

Answer:

Selective breeding of plants and animals, including crop plants with better yields. ornamental plants with particular flower shapes and colors. farm animals that produce more, better quality meat or wool.

Other Questions
Most organisms cannot live in temperatures:below 50Cabove 0Cabove 50C America is commonly viewed as a model for which of the following by other nations?A. ReligionB. FreedomC. Power What is the coefficient for the 5th term of (2x-y)^8 Ten tubs of dried cranberries cost $40 how many runs can u buy for $20 Help help help ASAP help 12.44 = 4x what does x = Help? im confused plss!Find the area of the regular polygon with the given radius or apothem. I really need help will give 20 points and brainliest _____ contain similar genes but often different alleles. After DNA replication, ______ contain identical alleles combinations. What is density? (1 point) the amount of space occupied by a substance or body O the quantity of matter contained in a substance or body o the amount of heat contained in a body o the degree of compactness of a substance LAYSTOPSolve using the Zero Product Property.15. The height of a football after it has been kicked from the top of a hill can be modeledby the equation h= 2(-2-4t) (2t - 5), where h is the height of the football in feetand tiltihe time in seconds. How long is the football in the air?AA. t=2.5 secondsB.B. t=-0.5 secondsC. t=1.5 seconds How many times larger is 8 x 106 than 2 x 103? Help picture below problem 12 Find the simple interest on the loan of $2500 for 2 years at 5%.$(Simplify your answer. Round to the nearest cent as needed.) Please help!!!Mr. Johnson's class will study one sea animal for the next week. Which group should Mr. Johnson survey to find the type of sea animal his students should study?A: His studentsB: Teachers at his schoolC: Parents of his studentsD: Workers at a sea animal park does eating while dehydrated make you dehydrate faster? Find the surface area of the cone. Use 3.14 for it.The surface area is about in.2.look at the picture Ill give brainiest Write a poem using personification to describe an object or idea. when was the magnetic field of the earth discovered examine figure 1 below. For each numbered location, identify which part of photosynthesis it represents, then discribe how each part enters or exits the plant