Which best describes electromagnetic waves?

A. transverse waves made up of electric and magnetic fields

B. longitudinal waves made up of vibrations that move through matter

C. mechanical waves that travel as ripples in water

D. sound waves that can only travel in a medium

Answers

Answer 1

Answer:

A

Explanation:

hope this helps!!!!!!!

Answer 2

Answer:

A

Explanation:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

they are transverse waves.


Related Questions

**WILL MARK BRAINLEST* The diagram below shows a model of the greenhouse effect... Which process would happen MORE if the amount of greenhouse gasses in the Earth's atmosphere INCREASED? *


Process A (Infrared heat escaping into space)

Process B (Sun sending light energy to Earth)

Process C (Infrared heat being trapped in the atmosphere)

None of those processes would happen more with increased greenhouse gasses.

Answers

Answer:

Process C (Infrared heat being trapped in the atmosphere)

yeah what they said^

An area with many volcanoes that includes the western borders of South, Central, and North America, the southern border of Alaska, and the eastern border of Japan is often called the Ring of Fire. Why did so many volcanoes form in these areas?

help

science

Answers

The volcanoes and earthquakes that are along the ring of fire are caused by the amount of movement of tectonic plates in the area. Plates overlap at convergent boundaries called subduction zones. As rock is subducted, it melts and becomes magma.

Hope this helps! :)
The tectonic plates move so often then it creates many

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

A) The cannon moving forward
B) The cannonball moving backward
C) The cannon moving backward
D) The cannonball moving forward

Answers

The answer is D I believe

We have that when a cannon fires a cannonball the reaction is  the opposite reaction spoken about in newton law

The cannon moving backward

Option C is correct

Newtons third law state that for every action they must be an equal and opposite reaction Therefore

When a cannon fires a cannonball we observe Newton's third law the reaction force notice is the opposite reaction spoken about in newton law

In conclusion

When a cannon fires a cannonball the reaction is  the opposite reaction spoken about in newton law

The cannon moving backward

Option C is correct

For more information on this visit

https://brainly.com/question/13549064

The Bill and Melinda Gates Foundation hires you as a consultant to determine how best to use $20 billion to save the world and make it a better place to live. You cannot spend $1 on yourself or your family. What’s your plan? Who would you help? What would you do?

Answers

Answer:

I like writing sentences, cama cama cama shake your body do that conga yeah shake your body baby do that conga come on shake your body baby do that Conga come on shake your body baby do that cngaaaaaaa

Explanation:

This is the answer hope it will help you

Which of the following are made mostly or entirely of proteins? (Select all that apply.)
carbohydrates
hormones
fats
body tissues

Answers

Answer:

Body tissues and hormones

Explanation:

Body tissues are made of almost 80% proteins. Some hormones, like the growth one (Somatotropin).

Body tissues an hormones i think

What types of crust are colliding between the South American Plate and the Nazca Plate?
Answer Choices:
Continental Crust/Continental Crust
Oceanic Crust/Oceanic Crust
Oceanic Crust/Continental Crust

Answers

Answer:

Oceanic Crust/Continental Crust

Explanation:

It is a destructive plate boundary between the oceanic crust of the Nazca plate and the continental crust of the South American plate.

Please help and serious answers only please!!

Answers

Answer:

#9: Tisa's average speed is 6 meters per second

Lily's average speed is 6 meters per second

#10: Alesia is fastest during the first hour (the first decrease)

Explanation:

rly don't have time to explain if u want me to comment and I'll come back

<3

Which of the following investigations is an experiment?

1 Constructing a model to study the water cycle

2 Measuring the height of a table using a measuring tape

3 Measuring the effect of different activities on heart rate

4 Observing two birds to find out which of the two flies higher

Answers

Answer:

The answer is number 1

What are TWO costs of using tides for energy?
Sorry for the caps, I have been looking through answers and the answers never have 2 costs, only one.

Answers

Two costs:
• Tidal energy systems may alter wave currents and have a chance of being indirectly harmful for the environment; however the advantages would still arguably outweigh this
• Very expensive; for very many reasons, i’ll just list one on the top of my head. It’s still not a well established industry yet so resources and costs for these projects are very high demand (lack of mass production, etc.)

Answer: Hello!!! It is me again!!!  Here is the answer: The Bill and Melinda Gates Foundation hires you as a consultant to determine how best to use $20 billion to save the world and make it a better place … You cannot spend $1 on yourself or your family.  :) Please mark me as Brainliest :) :) :)

Explanation:

The car moves at 300 m/s on a highway, after 25s the car stops. What is acceleration?

Answers

Answer:

12

Explanation:

Acceleration=change in velocity/change in time

Change in velocity is 300-0 (because the car stops meaning velocity is 0) so the change is 300.

Change in time is 25-0(because time started at 0 secs.

300/25=12m/s^2

Answer:

12

Explanation:

Which group of organisms came before marsupials?
Only reptiles
Both cats and dogs
Both amphibians and reptiles
Only dogs

Answers

Both amphibians and reptiles
Amphibians and reptiles

If two scooters are moving at the same speed but in opposite directions is their velocity the same? Explain

Answers

Answer:

yes

Explanation:

because there going the same speed but in different directions.

Yes they are going the same speed in different directions

A truck accelerates on a highway from rest to 216 m/s in 10s. What is the magnitude of acceleration?

Answers

Explanation:

acceleration is the change in velocity per time taken

a = ∆v/t.

a = (216 - 0)/10

a = 216/10

a = 21.6m/s²

A patient with a family history of cholesterol deposits in the arteries asks her doctor for a recommended vitamin. Which of these vitamins is the doctor likely to recommend?
vitamin D
vitamin C
vitamin B
vitamin F

Answers

definitely vitamin B.
Vitamin B plays an important role in cell matabolism

Cholesterol deposits in the arteries can be treated by the Vitamin B (Niacin).

Why Vitamin B is used to treat cholesterol patients?

The function of Vitamin B (Niacin) is to remove the LDL (low density lipo  protein) from the body that is Bad cholesterol and to increase the HDL (High density Lipo protein) that is good cholesterol.

Niacin is a type of vitamin B which is used by the human body to convert the food into an energy. Niacin (Vitamin B) also improves the performance of the nervous system and digestive system and also keeps the skin healthy.

Thus Vitamin B is used to treat the cholesterol patients.

To know more about Vitamins follow

https://brainly.com/question/9348916

What is the main reason for running one experiment that has an independent variable and running one variable with everything the same except that it does not have the independent variable?

Answers

Answer:

when you run one experiment and it is off and then do the same experiment again that makes it not have a independent variable.

Explanation:

To see what is is without the independent variable and with the independent variable seeing what the independent variable does.

Everything in the world has the same density. True or False?

Answers

False
Nothing has the same destiny everything has their own destiny to follow

Which of the following statements about digestion is/are TRUE? (Select all that apply.)
Salivary glands are located in the esophagus.
Digestion begins in the mouth.
Saliva changes the starches in food into simple sugars.
Saliva is an enzyme.

Answers

Answer:

option 1, 2, and 4

Explanation:

i took the test lol

The true statements are digestion begins in the mouth, saliva changes the starches in food into simple sugars, and saliva is an enzyme. The true options are (2), (3), and (4).

The process of breaking down food mechanically and chemically begins digestion in the mouth. When we consume, our teeth break down the food with chewing motions. By increasing the food's surface area through mechanical means, enzyme function is facilitated.

The digestion of carbohydrates, and starches, depends on the salivary enzyme amylase. When amylase disassembles the lengthy chains of starch molecules into smaller units, it creates maltose, a disaccharide (a form of sugar).

A biological enzyme is a molecular catalyst that speeds up particular chemical reactions without being consumed or changed in the process. Amylase, which was previously noted, is one of the most significant enzymes found in saliva. In the mouth, amylase aids in the first digestion of carbohydrates.

Hence, the true statements are digestion begins in the mouth, saliva changes the starches in food into simple sugars, and saliva is an enzyme. The true options are (2), (3), and (4).

To learn more about Saliva, here:
https://brainly.com/question/30020751

#SPJ6

DUE TODAY PLEASE HELP.....WILL GIVE BRANIST!!!!!!!
Instructions: Create a comic strip detailing the adventure of your character as the character is exposed to thermal energy, causing it to undergo phase changes from a solid, to a liquid, to a gas. Place drawings inside the boxes and written content on the lines below each box.
Your presentation must include the following:
• title and introduction of your character, including what substance it is made of
• source of thermal energy your character encountered (conduction, convection, and/or radiation)
• detailed description and/or diagram of the particle transformation from solid to liquid phase
• detailed description and/or diagram of the particle transformation from liquid to gas phase

( do not use the ice cube story)

Answers

girl how someone supposed to help you with that?!

Answer:

use water in the ocean getting precipitated and going up then make it fall off a mountain then make it freeze becuase it got stuck on the mountian

thermal energy happend when the water got precipitated

I hope it helps a bit

Sorry if there is mistakes I'm tryna help

What types of crust are colliding between the North American Plate and the Pacific Plate?
Answer Choices:
Continental Crust/Continental Crust
Oceanic Crust/Oceanic Crust
Oceanic Crust/Continental Crust
Another one of these that my daughter is asking and I don't know the answer. Please help!

Answers

Answer: G00gle got you bro

Explanation:

Yea

Why do you see objects when you shine a flashlight in a dark room? A. The objects you see are refracted. B. The objects you see are blackened. C. The objects you see are illuminated. D. The objects you see are luminous.

Answers

Answer:

A

Explanation:

it s refracted

What is the wavelength of a water wave that is moving at 12 m/s with a frequency of 3 Hz?
(p.s: I also have to show my work on this question!)

Answers

Answer:

4 meters

Explanation:

The Formula for finding Wavelength is Wavelength= Speed/ Frequency.

Substitute the values into this equation. 12m/s/3= Wavelength

12/3=4

So, the Wavelength is 4 meters

Hope I helped, Brainliest would be appreciated :)

Have a fantastic day!

            -Aadi x

Which of these vitamins are essential for building strong bones? (Select all that apply.)
vitamin D
vitamin E
vitamin B
vitamin C

Answers

The answer is Vitamin D
Vitamin D cause it is bae

Why does a nucleus always have a positive charge?

Answers

Answer:

Explanation:

The nucleus is positive because only protons live in the nucleus. Electrons (which have a minus charge ) orbit around the nucleus, but only the nucleus has positive charges.

It contains protons- which always have a positive charge, causing the nucleus to constantly be positively charged

During the 1840s, Americans used the idea of Manifest Destiny to justify the...

A. expansion of women's rights
B. acquiring of new territories
C. repeal of the Missouri Compromise
D. beginning of free public education

Answers

b because was the idea that Americans were made to civilize the American territory. That ideia was created by God, i mean, the destiny of america was chosen by god.
it is B that is the right answer

Which of these minerals are essential for muscle health? (Select all that apply.)
potassium
sodium
iodine
calcium

Answers

Answer:

Potassium and calcium

Explanation:

Potassium and sodium

diagram... At which location would the moon most likely be in a FULL MOON phase (all of the lit side visible)? *

A
B
C
D
E
F

Answers

It’s D it is directly behind the Earth after the waxing Gibbous

PLS HELP ITS DUE TODAY
Which type of plate boundaries can result in slow changes to Earth’s crust? What is created because of these plate boundaries?
Which type of plate boundaries can result in fast changes to Earth’s crust? What is created because of these plate boundaries?
How is the movement of the cocoa and milk similar to the movement in the asthenosphere?

Answers

Answer: tectonic plates

Explanation:

Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth's mantle. ... Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth's crust.

When a ball bounces back when you throw it at a wall, what occurs?
A- refraction
B- reflection
C- diffraction
D- absorption

Answers

Answer:

a (refraction) i think

Explanation:

I would have to think a. Nothing else makes since

Pierre is a 375 kg great white with an average speed of 3 m/s. When Pierre spots a seal, he increases his velocity to 7 m/s. After he eats the 45 kg seal, Pierre returns to his average velocity. What is Pierre's kinetic energy?

Answers

Answer:

1890J

Explanation:

375+45 = 420kg (total mass)

kinetic energy = 1/2 × mass × velocity²

1/2 × 420 × 3² = 1890J

.. Which location shows AUTUMN (fall) in the NORTHERN hemisphere? *
HINT: Pay attention to which season the North is leaving... Is it leaving summer, or is it leaving winter?

Location 1
Location 2
Location 3
Location 4

Answers

Answer:

Location 2

Explanation:

This shows fall because the Earth is a little tilted not giving as much light

the answer is location 2
Other Questions
what is the gravitational potential energy when a bungee jumperof 80 kg is lifted 60 m in a crane before jumping? Which are healthy choices when eating at a restaurant?A. drinking sodaB. choosing mayo for your sandwichC. having a salad with your lunchD. eating a burger with friesE. ordering a fruit for dessert This cartoon could be used to support the thesis that opposition towomen's suffrage wasstronger in western states than in eastern states.Bbased on unemployment statistics comparing men andwomen.>stronger among women than among men.D based on stereotyping of women's roles. On Monday, a local hamburger shop sold a combined total of 544 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times thenumber of hamburgers sold. How many hamburgers were sold on Monday? You can buy 5 cans for green beans at the Village Market-for-$4.00- You can buy 10 of the same cans of beans at Sam's Club for $7.10: Which place is the better buy? A material that does not conduct heat very wellAExpanderBRadiationCConductorDInsulator Which of the following describes why the United States Senate did not want to sign the Treaty of Versailles?Group of answer choicesThey disliked an organization led by the Soviet UnionThey wanted to limit trade with foreign nationsThey believed they would lose power to make foreign policy decisionsThey hated Woodrow Wilson Why do you think the Constitution provides so many ways to prevent a billfrom becoming a law? How has the decline of timber resources affected people in Washington State?It has decreased the ability of the forests to filter water and produce oxygen, affecting the quality of these resources important to humans.It has resulted in soil erosion, leading to dramatically better water quality in the state.It has opened previously unsettled areas to human habitation, altering settlement patterns in Washington State.It has caused unemployment in the state to rise dramatically. so it says to show your work . I don't know how to do this Ummmmmmmmmmmmmmmmmmmmmmmmmmmmm Decrease 740 by 8% . Describe the impact of technology on the environment today. The value of a particular investment follows a pattern of exponential growth. In the year 2000, youinvested money in a money market account. The value of your investment t years after 2000 isgiven by the exponential growth model A = 5900e0.059t By what percentage is the accountincreasing each year?A) 6.6%B) 6.5%C) 6.3%D) 5.9% Which completes the progress of events?Surrender of Italy -> Germany surrenders -> Dropping of atomic bomb> _____A. world war 1B. The Russian revolution C. World war 2D. The cold war A can of cat food costs $0.62. How much would it cost to buy 5 cans of cat food? NEVERMIND I GOT IT FREE PTS\An aquifer receives 40 m3 of precipitation and loses 10 m3 of water through natural movement.How much water can be pumped from the aquifer to balance the budget?A. 10 m3B. 20 m3C. 30 m3D. 40 m3 6Triangle MNP and triangle JKL are similar right triangles.K LWhich proportion can be used to show that the slope of IL is equal to the slope of MP?A 0 - (-7)4- (-4)-4 - (-10)8- (-1)C 0 - (-4)4- (-7)-4-(-1)8- (-10)B0 - 44-(-7)--4-8- 1 - (-10)D4=(27) = -1-(-10)4 - 8 Why was Edward Cole able to win his election? Tims piggy bank contains nickels and quarters worth $6.70. He has 62 coins in all. How many of each coin does Tim have?