Which of the following forces require physical contact?
A) tension
B) friction
C) applied force
D) air resistance
E) magnetic force

Answers

Answer 1

Answer:E Magnetic force

Explanation: when things are magnetic they touch so therefor e is your answer

Answer 2
E)magnetic force is the correct answer because it is using a polar opposite (push-pull) relationship that requires physical force to separate apart from one another

Related Questions

Jody drives 120 miles south from Kingston, NY to Princeton, NJ. If she drives 60 mph, how long will it take her to make the trip?
cannot be determined
1 hour
2 hours
4 hours
people keep giving really stupid answers-

Answers

sorry if its wrong but 2 hours??

2 hours cause 60 mph then 2 hours

what was Galileo's contribution to the study of motion​

Answers

Answer:

The law of falling bodies is one of Galileo's key contributions to physics. It states that objects fall at the same speed regardless of weight or shape. Through his experiments, Galileo countered the pervasive Aristotelian view, which held that heavier objects fall faster than lighter objects.

Explanation:

Answer:

Galileo’s contribution to the study of motion is that he was the first to systematically study force and motion.

Explanation:

Galileo Galilei was the first person to scientifically invest himself in producing answers about force and motion.Galileo was first built up the idea of inertia the possibility that an article stays in rest or moving until followed up on by another power which turned into the reason for one of Isaac Newton's laws of motion.The law of falling bodies is one of Galileo's key commitments to material science.It expresses that articles fall at a similar speed paying little heed to weight or shape.Through his tests, Galileo countered the unavoidable Aristotelian view, which held that heavier items fall quicker than lighter objects

Pls help!
What is movement of energy from one system to another also known as?

Answers

Answer:

Either energy transformation or energy conversion

Depends on which one you were taught.

What effort force will be required to lift the 20 N object using the pulley above?

Answers

Answer:

I think it is 5N.

Explanation:

pls help:



Which individual elements make up the following common compounds?
CaCO3
CaCl2
C3H6O
HCl
Ca(OH)2

Answers

Answer:

1. Calcium carbonate

2. Calcium chloride

3. Acetone

4.Hydrogen chloride

5. Calcium hydroxide

Explanation:

Please help 20 points
only real answers or I WILL REPORT YOU
The three ways waves change direction are reflection, refraction, diffraction.

In 3-5 complete sentences, compare those three ways that waves change direction.

Answers

Reflection is a change in direction of a wave between two different objects that is the Wave returns to the medium from which it begins.
Refraction is When a light travels from air into water it slows down causing it to change direction slightly.

Diffraction Involves a change in direction of waves as they pass-through and opening.
Reflection is a change in direction of a wave between 2 different objects that is the wave returns to the medium from which it begins.
Refraction is when a light travels from air into the water it slows down causing it to change direction slightly.
Diffraction involves a change in direction of waves as they pass through an opening.

Compute the latent heat of 10 kg substance if the amount of heat for a phase change is 300 kJ.

Answers

Answer:

simply because mass = velocity

and from this 7(8902314_ it is simple

Help please
Science...

Answers

Answer:

im pretty sure 2

Explanation:

An electric motor transforms potential energy into mechanical energy.
True or false ​

Answers

Answer: true

Explanation:

True bc it is becoming energy

What do you understand by the statement-The heat of vaporization of water is about 2,260 kJ/kg

Answers

Answer:The statement "The latent heat of vaporization of water is 226kj/kg." means the amount of heat energy needed to convert one kilogram of water from the liquid phase to vapor is 226kj/kg. Here, the term "latent" refers to a phase-changing process and the term "vaporization" refers to the phase change from liquid to gas

Explanation:

Answer:

The latent heat of vaporization of water is 226kj/kg." means the amount of heat energy needed to convert one kilogram of water from the liquid phase to vapor is 226kj/kg. Here, the term "latent" refers to a phase-changing process and the term "vaporization" refers to the phase change from liquid to gas

Explanation:

I do not understand Net Force at all- I would really appreciate it! I'll also include a brainliest since it is quite a bit! Thank you!

Answers

Answer:

See below

Explanation:

Net Force is the force which is the sum of all the forces acting on object i.e. pushing of pulling.

Net Force:

1)   4N (net force is 4N to the left)

2)  2 - 7 = -5N (net force is 5N to the left)

3)  4 - 4 = 0  (net force Zero)

4)  6 + 3 = 9N (net force is 9N to the right)

5)  4 - 8 = -4N (net force is 4N to the left)

6)  4 - 5 = -1N (net force is 1N to the left)

7)  -3 - 3 = -6N (net force is 6N to the left)

8)  2 + 4 - 5 = 1N (net force is 1N to the right)

9)  3 - 6 = -3N (net force is 3N to the left)

10.  4 + 4 - 7 - 1N (net force is 1N to the right)  

Where’s the guys above me’s brainliest

I MARK BRAINLIEST :D
You sit in a swivel chair with your arms out and feet off the floor and you twist your torso and the chair moves. Which law of motion is this?

Answers

Answer:

Explanation:

its a chair that spins around

It’s Newton’s law of motion. his first law of motion or could be third law of motion

what do you think a divergent (constructive) boundary is? How do plates interact with each other?


Answers

Divergent boundaries usually occur when two tectonic plates or more pull away from each-other causing the empty spaces to fill with magma or water. Tectonic plates interact with each-other in many different ways, they can move towards one another (converge), or move away from one another (diverge), or slide past one another (transform)... These movements occur during earthquakes.

URGENT!!! NEED ANSWER ASAP Students are completing a table about a particular subatomic particle that helps make up an atom. The students have filled in one cell of the table so far.


A 3-column table with 2 rows. The first row has entries Mass (a m u), location, charge. The second row has entries 1, nothing, nothing.


Based on the information shown, which statement about the subatomic particle must be correct?


Its location is in the nucleus, because the particle is a proton or a neutron.

Its location is in the nucleus, because the particle is a neutron or an electron.

Its charge is +1, because the particle is a proton.

Its charge is 0, because the particle is a neutron.

Answers

Hmm, I will come back to this one just to help. :)
I got u covered bro

Its location is in the nucleus, because the particle is a proton or a neutron.
Hope this helps!

4. The picture below is an example of *
1 point

A. A cell
B. An organelle
C. An organism
D. Both A and C

Answers

Answer:

I think its A

Explanation:

because it has a cell wall and cytoplasm I THINKKK

A). A cell
But I can also sing my abcdefghijklmnopqrstuvwxyz

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the _______________.


outer ear and ear canal


tiny hairs


three small bones in the middle ear


inner ear

Answers

Answer: three small bones in the middle ear

Explanation: Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the three small bones in the middle ear. So, the correct option is C.

What are Sound waves?

A sound wave is defined as a pattern of disturbance that is caused by the movement of energy that travels through a medium such as air, water or any other liquid or solid substance as it propagates away from the source of the sound which is the object made by vibration and pressure generate waves, for example, a ringing cellphone.

These waves enter the outer ear and pass through a narrow passage called the ear canal leading to the eardrum which vibrates with the incoming sound waves and sends these vibrations to three small bones in the middle ear where these bones are called malleus, incus. and steppes.

Thus, the correct option is C.

Learn more about Sound waves, here:

https://brainly.com/question/21995826

#SPJ6

In 3-5 complete sentences, compare the three ways that waves change direction.

Answers

Answer:

There are many ways to compare waves and how they change direction. The most common way is through the wind. This is different from human force because of direct contact in the wind and human force. However they both intact something physically moving the ocean. This compares how different waves move.

Explanation:

i tried my best to help!

Answer:

Reflection is the change in direction of a wave between two different objects such that the wave returns to the medium from which it began. In other words, the waves are sent back towards the source. Sound waves, light waves, and water waves can all be reflected.

Explanation:

Incident Ray – the wave/ray traveling towards a surface

Angle of Incidence – the angle at which the traveling wave/ra

y hits a surface

Equal (or Normal) – divides the two rays (incident / reflected) into two equal angles

Angle of Reflection – the angle at which the reflected wave returns towards the original medium

Reflected Ray – the wave/traveling away from the “hit” surface, and now traveling towards the original medium

How is the structure of an atom best described?


a negative core surrounded by densely packed matter

a neutral core surrounded by mostly empty space

a positive core surrounded by mostly empty space

a positive core surrounded by densely packed matter

Answers

Atoms is basic particles ,electrons,neutrons and the Regions of the atom are called electron shells and contain the electrons. So “a neutral core surrounded by mostly empty space”sounds pretty sure to me :)

Answer:

the right anwser is A NEUTRAL CORE SURROUNDED BY MOSTLY EMPTY SPACE

Explanation:

can i have brainlest

Explain how water changes state using physical changes.
Are there the same number of water molecules after the change?
How does this prove the Law of Conservation of Mass?

Answers

Answer:

Explanation:

Gbuu g by. Out vvuitguvvigvvvug. It uby

Use (Socratic ) you will get the answer

PLz hlp me!!!! ASAP Will mark brainliest

Read the severe weather warning and answer the question.


Warning

A storm system has formed over warm water in the Gulf of Mexico. Winds in the system are rotating counterclockwise and are expected to reach speeds up to 200 miles per hour.


What type of severe weather is being described?


Blizzard

Hurricane

Thunderstorm

Tornado

Answers

Answer:

hurricane

Explanation:

hurricane!

I believe that is correct, good luck.

Look at the pictures to answer please and thank you Branleist goes out to

Answers

Ok, Amplitude is C, Wavelength is A, Trough is D, and crest is B.

Hope this helps!

The first supersonic flight was in 1947. It was just above the speed of sound. Which altitude would you expect Captain Yeager to have used for his flight?
Sea level
1,000m
13,700m (within altitude used by commercial planes today)
85,000m (where meteor showers originate)

Answers

Answer:

c

Explanation:

The answer for this one is actually letter C.

Do you think his evidence is strong? Why or why not?

Answers

Answer:

No

Explanation:

The reason why Barry's evidence isn't strong because "it's not enough to support his claim" that strong magnets repel and weak magnets attract. Barry needs to have at least three trials for each test to greater prove his claim. Doing so will show that the test isn't incorrect because he repeated the test multiple times and got the same results. If Barry does three trials for each test and record his results then he would have enough evidence to support his claim.

Hope this helps.

No, the evidence is not strong enough, as there is a lack of repetition and information on how the experiment was done.

What is missing?

The first thing that is missing is information on how the experiment was done, things like

How strong is the strong magnet?How strong is the weak magnet?Which pole is which on each magnet?

Strong and weak magnets behave in the same way, opposite poles attract and equal poles are repelled, thus, there must be a problem with Barry's experiment.

Ignoring that, another problem is the lack of repetitions. An experiment must be done several times to see if the results are always the same, in the given evidence it was done only once for each, so we don't know if after another trial the outcomes will be the same.

If you want to learn more about experiments, you can read:

https://brainly.com/question/5411373

HELP!! ILL GIVE BRAINLIEST!
Imagine a bird is diving into the ocean. At what point is the bird’s kinetic energy the greatest?

Answers

Answer:

when she went in the ocean.

Explanation:

PLEASE HELP IVE BEEN STUCK ON THIS FOR 3HOURS!
Describe how the banks of a river are changed over time by weathering!
PLEASE HELP I WILL MARK BRAINLIEST!!!

Answers

Answer:

The river bank can expand due to the water breaking apart which can cause sediment to move and change/erode

what do you think a divergent (constructive) boundary is? How do plates interact with each other?

Answers

Divergent boundaries are areas where plates move away from each other, forming either mid-oceanic ridges or rift valleys. These are also known as constructive boundaries. ... This causes the oceanic plate to buckle and usually results in a new mid-ocean ridge forming and turning the obduction into subduction.


Hope this helps.


Please mark as brainliest.........

Please help I have a time limit of 15 minutes and I only have 5 left

Answers

I remember this it’s vest

Answer: I'm pretty sure it's either crest or trough... So, the official answer is Crest because this picture helped me...

I need help with my science question its this Explaining What factors affect an object's kinetic energy?

The facotrs of it is mass and speed

Answers

Answer:

mass and speed

Explanation:

How do you think a magnet can cause something to move to?

Answers

Answer:

I think a magnet can cause something to move if it has its own magnetical force or whatever you call it i forgot but you put the same pole to that sources pole. So move North pole to the other North Pole

Explanation:

Hello! needing assistants :p would be well appreciated like alot.
*brainlest included *

Finn listed two of the three steps involved in gene therapy. 1. The normal allele is removed from the chromosome. 2. The normal allele is added to the cells of a person with the disorder.

Which step should he also include, and where?

a) The normal allele is copied before step 1.
b) The normal allele is copied after step 1.
c) The unhealthy gene is cut from the DNA before step 2.
d) The unhealthy gene is cut from the DNA after step 2.d

Answers

I think the answer is C

Answer:

its b

Explanation:

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Three kids fall dead asleep, eye twitches, snores, and everything. What are two character traits to describe Mr. Freeman personality? Provide evidence for each one and give an explanation. What is twenty six million four hundred five thousand twenty in standard form? a) Identify the fallacy in each of the following statements. Choose only 1 answer for each question. b) For each question, explain why the statement is illogical without giving a definition of the fallacy in your answer. Each question is worth 2 marks. 1. Did the pollution that your company caused increase or decrease your profits? 2. There are two types of people in this world: the rich and the fools. Do you want to get rich or do you want to remain a fool? 3. The check bounced because there werent sufficient funds in the account. 4. I know one union representative who is an unscrupulous person. I wouldnt trust any of them if I were you. 5. Husbands cheat on their wives because they are unhappy with them. 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Yo s que no ser la nica vez que disfruto de esta maravilla. (1 point)Las Cataratas del Iguazu, ArgentinaLas Cataratas del Iguaz, Argentina PDTillman 2010Creative Commons Attribution 2.0 GenericSegn la lectura, por qu son populares las Cataratas del Iguaz? Las Cataratas del Iguaz son populares porque ________.no cuestan mucho dineroson una experiencia inolvidableestn en Argentinason sagradashelp its 25 points!!!!!!! Which statement is true about potlatches?A. They were held only during the summer months.B. They were hosted by craftspeople and laborers.C. Participants exchanged gifts to show their families' status.D. Participants ate small snacks that each family contributed Which of the following best describes the kingdom of Benin?Question 4 options:A. It was an Islamic empire that invaded neighboring Mali.B. Its people were fierce warriors, clever traders, and skilled brassmakers.C. Its capital was Timbuktu, a great center of medieval scholarship.D. It was an inland kingdom in the Sahara that had little contact with Europeans. Solve the equation. Hint: Rewrite the equation!!! 16 = - 4(y + 3) I need it done asapp