An Expert, please answer this question!



A student made the table shown to list some contact and non-contact forces.

Which statement best explains why the table is incorrect?

A)Spring force is a force acting at a distance.

B) Air resistance is a force acting at a distance.

C) The student and desk have to be in contact to apply the force.

D) The electromagnet and wire have to be in contact to apply the force.



Incorrect answers = 2 stars (Nothing personally just to let others know so they don't get a bad score)

Correct answer = 5 stars and a thanks! (And maybe Brainliest!)

Incomplete/Absurd/link answers = 1 star and I will report (if it's incomplete I will ask you to finish it but if you don't iI will report and give 1 star)

An Expert, Please Answer This Question!A Student Made The Table Shown To List Some Contact And Non-contact

Answers

Answer 1

Answer:

C) The student and desk have to be in contact to apply the force.

Explanation:

I am pretty sure :)

Answer 2

Answer:

C

Explanation:


Related Questions

Explain 3 examples of kinetic and Potential energy

Answers

Answer:

1. Planets; movement of planets around the sun and other stars in the galaxy is kinetic energy

2. Rubber Bands; can be classified as both potential and kinetic energy, depending on the state of the band (when stretch=potential energy; when released=kinetic energy)

3. Rivers; strictly kinetic energy. the water is constantly moving creating kinetic energy.

Explanation:

scientist created diagram X to represent the molecules of a kind of gas in a closed container. Diagram Y represents the molecules in the container after the size of the container was reduced. The temperature in the container was not changed. What most likely happened to the system when the scientist changed the size of the container? A. Matter was added. B. Matter was removed. C. The pressure increased. D. The pressure decreased.

Answers

Why is your account my name and yours

The most likely outcome when the scientist changed the size of the container is that the pressure increased.

Option (C) is correct.

When the size of the container is reduced while keeping the temperature constant, the gas molecules experience a decrease in volume. According to Boyle's law (P₁V₁ = P₂V₂), if the volume decreases, the pressure of the gas will increase.

Diagram X represents the initial state with larger volume, and diagram Y shows the final state with reduced volume. Since the temperature remains constant, the pressure must change to counterbalance the change in volume.

As the volume decreases, the gas molecules have less space to move around, and they collide more frequently with the container walls. This increased collision rate results in a higher pressure exerted by the gas on the container walls.

Hence, the most likely outcome when the scientist changed the size of the container is that the pressure increased, which corresponds to option C.

To learn more about Boyle's law here

https://brainly.com/question/2689760

#SPJ3

How would you classify this atom of oxygen?

Answers

Answer:

Oxygen is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is O, and its atomic number is 8, which means that an oxygen atom has eight protons in its nucleus. Oxygen is a gas at room temperature and has no colour, smell or taste. Oxygen is found naturally as a molecule.

Ion Anion an ion is a negatively or positively charged atom or radical
It’s atomic number is 8 which means it’s electronic configuration is 2,6 but it has 8 electrons in the l shell which means it is a negatively charged ion since the number of electrons is more than the number of protons. Anion is a negatively charged ion,cation is a positively charged ion

What substances can be released in a volcanic eruption

Answers

Volcanic eruptions produce three types of materials: gas, lava, and fragmented debris called tephra.

Friction is similar to drag. Like drag it acts on an object in the opposite direction from the object’s motion.


How does the friction slow motion?

Answers

Answer:

•  Friction is a force that occurs when two surfaces slide past

one another.

• The force of friction opposes the motion of an object,

causing moving objects to lose energy and slow down.

• When objects move through a fluid, such as air or water, the

fluid exerts a frictional force on the moving object. The

frictional force from a fluid is called a drag force.

• Friction examples: tires skidding to a stop on a road,

sandpaper rubbing against wood, air pushing against the

nose of an airplane

• Friction drag force causes objects to slow down as they move through a

fluid, such as air or water.

• Drag force depends primarily on the following variables:

– Cross‐sectional area of an object moving through the fluid

– Speed of moving object

– Density of the fluid

– Drag coefficient (determined by experiments; related to the shape of

the object)

• Drag force is especially dependent on the speed of an object. As an

object’s speed increases, the drag force from the fluid increases

exponentially.

• For example, when you drive at high speeds, the frictional force of air on

the car increases and fuel economy decreases

Hope this helps, have a nice day/night! :D

Provide 3 examples of substances that are mixtures and list the substances in them.

Answers

Salt and water
Sugar and salt
Salt and pepper
Bleach Sulfrate Meth and pure vinegar Salt Sodium Cloride

Can someone help me??? Its for Science Fair

I need to write a Rationale
My project is on candles and wax.
If it'll help, here is my hypothesis: If the waxes being tested are beeswax, palm wax, paraffin wax, and soy wax, then the palm wax should burn the slowest and last the longest.

Answers

Answer:

OK, you can say:

Waxes are a diverse class of organic compounds that are lipophilic, malleable solids near ambient temperatures. They include higher alkanes and lipids, typically with melting points above about 40 °C (104 °F), melting to give low viscosity liquids. Waxes are insoluble in water but soluble in organic, nonpolar solvents. Natural waxes of different types are produced by plants and animals and occur in petroleum.

And for more explanation you can visit

https://en.m.wikipedia.org/wiki/Wax

Do you think the younger scientist had enough evidence for his prediction?

Answers

Answer:

yes

Explanation:

You have no context to the problem

PLEASE HELP, I NEED TO FILL THESE TWO BOXES OUT!
(subject is science)

Answers

Answer: c

Explanation:

Draw Bohr diagrams for the following

Answers

example calculation for a.)

N = 39 - P

N = 39 - 19

N = 20

P = 19

Idek what a bohr diagram is but I think the first person answered this for you

Are all mutations harmful? Explain.

Answers

Answer:

Most mutations are not harmful

Explanation:

but some can be. A harmful mutation can result in a genetic disorder or even cancer. Another kind of mutation is a chromosomal mutation. Chromosomes, located in the cell nucleus, are tiny threadlike structures that carry genes.  

by the way this is copyed

No, some mutations occur an actually help the specimen to adapt to its environment or prevent future issues.

Provide 3 examples of substances that are mixtures and list the substances in them

Answers

Answer:

Water and salt = salt water

Oxygen and water = sea foam

Smoke and fog = smog

Explanation:

Hope this helped, nya~ :3

How could you break down the compound calcium carbonate into the elements that make it up ? A. by melting B. by crushing C. with filter D. with chemical changes

Answers

Answer:

A: By melting

Explanation:

When calcium carbonate is heated it decomposes into calcium oxide and carbon dioxide.

A. By melting

You can break it down by thermal decomposition

GIVING BRAINLIEST!
1. Tom and Tina decided they wanted to start a family. Tom knew his grandfather had sickle-cell disease. Sickle-cell disease is a recessive disorder that causes blood cells to stiffen and take on a crescent shape. These blood cells have a difficult time moving through the blood vessels and can cause health problems. Tina didn’t know of any family members that had it. Still, before they got pregnant they both went to the doctor for genetic tests. The doctor found that even though Tom and Tina were healthy, they both carried the gene for sickle-cell disease. Make a Punnett Square to determine the probability of Tom and Tina’s child having sickle-cell disease.

Use the space below to tell the probability of Tom and Tina having a child with sickle-cell and explain how you determine that.

Answers

it depends if their parents carry the gene, but from what we know, it is a 50% chance that the baby will have the disease.

PLZ help and fast

Compare your responses when you were warned and when you were not warned.

Decide if any of your reactions were reflex responses, and explain your answer.

Infer why organisms have reflex responses to some stimuli.

Answers

Answer:

Explanation:

It can possibly be because of genetics in me. For instance: I love dark chocolate, and every time I eat some, it can activate the same photic sneeze reflex as the sun.

Why does transporting materials during production release carbon dioxide?
-Materials release carbon dioxide as they move around in vehicles.
-Materials exposed to air get warm easily. The warm materials release more carbon dioxide.
-Materials break down as they move and cause pollution. Pollution releases carbon dioxide.
-Vehicles used to move materials consume fuel and release carbon dioxide.

Answers

Answer:4

Explanation:

What are the strengths and limitations of your model?

Answers

Answer:

Missing Details. Most models can't incorporate all the details of complex natural phenomenaExplanation:

HELP PLS 5 MINUTES
Which statement best compares competition, cooperation, and predation between two organisms?

Cooperation is a positive interaction between the two organisms, and predation and competition result in a negative interaction for at least one organism.
Cooperation and competition are positive interactions between the two organisms, and predation results in a negative interaction for at least one organism.

Cooperation and predation are negative interactions between the two organisms, and competition results in a positive interaction for at least one organism.\

Cooperation results in a negative interaction for at least one organism, and competition and predation are positive interactions between the two

Answers

Answer: Its the First One

Cooperation is a positive interaction between the two organisms, and predation and competition result in a negative interaction for at least one organism.

Explanation:

predation is preying on the other so its negative for at least one of them.

competition is fighting so its negative for at least one of them.

Cooperation makes them help each other so its positive.

Answer: predation is preying on the other so its negative for at least one of them.

competition is fighting so its negative for at least one of them.

Cooperation makes them help each other so its positive.

Why do you think the older scientist disregarded the younger scientist's prediction?

Answers

Answer:

pls explain, can you show what the younger scientist did.

Explanation:

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