What is one difference between an electromagnetic wave and a mechanical wave?

A.
A mechanical wave can travel through a vacuum. An electromagnetic wave must have a medium to travel through.

B.
An electromagnetic wave can travel through a vacuum. A mechanical wave must have a medium to travel through.

C.
An electromagnetic wave moves parallel to the direction of the wave's travel. A mechanical wave can move only perpendicular to the direction of the wave's travel.

D.
An electromagnetic wave moves perpendicular to the direction of the wave's travel. A mechanical wave can move only parallel to the direction of the wave's travel.

Answers

Answer 1

B.
An electromagnetic wave can travel through a vacuum. A mechanical wave must have a medium to travel through.

The answer is b

Related Questions

What does the mass of an object depend on? A:Force of gravity B: Temperature of the object C:Time taken for an event to occur D: Amount of matter that makes up the object

Answers

Answer:

The Answer is D

Explanation:

Brainliest pls

Answer:  The answer is D) Amount of matter that makes up the object.

Explanation:  

I hope this helps,

have a great day

i took the test!

100 points
And brainliest

A freeway exit curves with a radius of 30 m and a posted speed limit of 17.5 m/s. What is your radial
acceleration if you take this exit at the posted speed?

Answers

Answer:

10.21m/s²

Explanation:

Radial acceleration, also known as centripetal acceleration, refers to the acceleration of an object along the circular radius. It can be calculated using the formula:

a(r) = v²/r

Where a(r) = radial acceleration

v = velocity

r = radius of the circular path

According to the information provided in the question, velocity (v) = 17.5m/s, radius = 30m. Hence;

a(r) = v²/r

a(r) = 17.5²/30

a(r) = 10.208333

a(r) = 10.21m/s²

what do waves create

Answers

Answer:

Waves transmit energy, not water, and are commonly caused by the wind as it blows across the ocean, lakes, and rivers. Waves caused by the gravitational pull of the moon and the sun are called tides.

Explanation:

Answer:

Waves are created by energy passing through water, causing it to move in a circular motion. However, water does not actually travel in waves. Waves transmit energy, not water, across the ocean and if not obstructed by anything, they have the potential to travel across an entire ocean basin. Waves are most commonly caused by wind. I hope this helped!

During a canoe trip camper paddles distance of 406 M and 70 seconds what is the average speed of the canoe

Answers

Answer:

The average speed is 5.8 m/s

Explanation:

I just did it

Anyone know the answer ——————————

Answers

You got it right two m/s

Why is the law of gravity an example of a universal law?


A. Gravity exists between small masses in an open system only.


B. Gravity exists between any two masses.


C. Gravity exists only on the earth and the moon.


D. Gravity exists for masses in a closed system only.

Answers

The answer is B. No matter where you go, you could go to another galaxy, you will always experience gravity. And that happens because of two massive objects. That’s why the law is universal. It’s true for any spot in the universe

Answer:

B

Explanation:

i took the test

a book has a mass of 50 kg and an acceleration of 5 m/s/s. what is the force of the book
help asap

Answers

Answer:

250 N

Explanation:

F=ma

F=50 kg(5 m/s/s)

F=250 N

Answer:

F=250N

Explanation:

I hope this helps you out and if your feeling generous plz mark brainliest it helps me a lot thank you:)

1 lb equals how many grams

Answers

Answer:

1 lb. is 453.592 grams

Explanation:

1lb is 453.592 grams

453.592 grams hope this helps!

NEED HELP ASAP WILL MARK BRAINLIEST
Isotopes are _____________.
Compounds
Atoms of the same element but with different mass
Atoms that have a charge
Atoms of different elements

Answers

Answer:

A. Atoms of the same element but ith different mass.

Explanation:

Answer: Isotopes are  Atoms of the same element but with different mass

Explanation: Atoms of the same element but with different mass

are unicorns real or not

Answers

Answer:

no lol

Explanation:

HELP PLEASE!!! is this right? if not please tell me the right answer
write the equation for calculating relative velocity in one dimensional.

Answers

Answer:

Your answer is correct, Option B

A truck heading east has an initial velocity of 6 m/s. It accelerates at 2 m/s2 for 12 seconds. What distance does the truck travel in the given time?

84 m
144 m
216 m
360 m

Answers

The answer (distance) is:

216m

The distance of the truck in the given time is 216 m.

How do you find displacement with velocity and acceleration?

Displacement (s) of an object equals, velocity (u) times time (t), plus ½ times acceleration (a) times time squared (t2). Use standard gravity, a = 9.80665 m/s2, for equations involving the Earth's gravitational force as the acceleration rate of an object.

How do you find velocity from acceleration?

Multiply the acceleration by time to obtain the velocity change: velocity change = 6.95 * 4 = 27.8 m/s . Since the initial velocity was zero, the final velocity is equal to the change in speed. You can convert units to km/h by multiplying the result by 3.6: 27.8 * 3.6 ≈ 100 km/h.

Learn more about velocity from acceleration here: brainly.com/question/14344386

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what is matter and explain ?​

Answers

Answer:

It is a physical matter that takes up all things.

Explanation:

By take up i mean structures and properties. Let me know you if have more questions about matter :D

A cell phone weighing 80 grams is flying through the air at 15 m/s. what is the kinetic energy?

Answers

Answer:

The answer is 9 J

Explanation:

The kinetic energy of an object can be found by using the formula

[tex]KE = \frac{1}{2} m {v}^{2} \\ [/tex]

where

m is the mass

v is the velocity

From the question

m = 80 g = 0.08 kg

v = 15 m/s

We have

[tex]KE = \frac{1}{2} \times 0.08 \times {15}^{2} \\ = 0.04 \times 225[/tex]

We have the final answer as

9 J

Hope this helps you

An athlete starts running from rest such that he covers a distance of 5mm in 0.50s with a constant change in velocity per unit time . when will he reach the finish line, if he is running a race of 50m? ​

Answers

Answer:

50 s

Explanation:

Given:

Δx = 0.005 m

v₀ = 0 m/s

t = 0.50 s

Find: a

Δx = v₀ t + ½ at²

0.005 m = (0 m/s) (0.50 s) + ½ a (0.50 s)²

a = 0.04 m/s²

Given:

Δx = 50 m

v₀ = 0 m/s

a = 0.04 m/s²

Find: t

Δx = v₀ t + ½ at²

50 m = (0 m/s) t + ½ (0.04 m/s²) t²

t = 50 s

A student examined a patch of mud and recorded several statements about footprints in the mud. Which statement is most likely an inference? A. There are ve footprints in the mud B. The depth of the deepest footprint is 3 centimeters C. The footprints were made by a dog D. The footprints are oriented in an east-west direction

Answers

Answer:

C

C. The footprints were made by a dog.

The student may have noticed specific characteristics or features in the footprints that lead them to believe that they were made by a dog.

Hence, the correct option is C.

An inference is a conclusion or deduction based on evidence or observations. It involves making an educated guess or interpretation about something that may not be explicitly stated.

Out of the provided options, the most likely inference is The footprints were made by a dog.

This statement is an inference because it involves making a conclusion based on the observed footprints in the mud. The student may have noticed specific characteristics or features in the footprints that lead them to believe that they were made by a dog.

However, this inference might not be a definite conclusion, as there could be other animals or factors that create similar-looking footprints in the mud.

Therefore, The student may have noticed specific characteristics or features in the footprints that lead them to believe that they were made by a dog.

Hence, the correct option is C.

To know more about footprints here

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Natural history research involves ____ unobsevable and unrepeatable past events.
A. Interpreting B. Verifying C. Asking
please answer soon

Answers

b verifying is the answer

A balloonist drops his camera from a height of 100 m while his balloon is ascending at 5 m/s. How
long did it take to reach the ground?

Answers

20 i think is the answer

Which two spheres are interacting when there is a rainbow ? Please help make you brainiest.

Answers

Answer: Honestly miss im not sure but i am pretty sure it is The HYDROSPHERE AND THE GEOSPEHER. I figured it out. Pls give me brainlest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Explanation:

You have a bowling ball with a mass of 4kg. You throw it with an acceleration of 10 m/s/s. With how much force will it hit the pins?

Answers

Answer:

The answer is 40 N

Explanation:

The force acting on an object can be found by using the formula

force = mass × acceleration

From the question

mass = 4 kg

acceleration = 10 m/s²

So we have

force = 4 × 10

We have the final answer as

40 N

Hope this helps you

A shopping cart given an initial velocity of 2.0 m/s undergoes a constant acceleration to a velocity of 13 m/s. What is the magnitude of the carts acceleration if the time is 4.0?

Also if your really smart and have instagram please dm imaswagmeal and help me pls

Answers

Answer:

The acceleration is a = 2.75 [m/s^2]

Explanation:

In order to solve this problem we must use kinematics equations.

[tex]v_{f} = v_{i} + a*t\\[/tex]

where:

Vf = final velocity = 13 [m/s]

Vi = initial velocity = 2 [m/s]

a = acceleration [m/s^2]

t = time = 4 [s]

Now replacing:

13 = 2 + (4*a)

(13 - 2) = 4*a

a = 2.75 [m/s^2]

Light waves pass through two openings and interfere, producing light and dark areas. Which of the following statements is true with regard to the areas that are produced?

A.The bright areas are produced by the destructive refraction of light waves.
B.The dark areas are produced by the destructive refraction of light waves.
C.The dark areas are produced by the constructive interference of light waves.
D.The bright areas are produced by the constructive interferences of light waves.

Answers

i think it’s B. The deal areas are produced by the destructive refraction of light waves

21. Compare and contrast beta particles to the electrons that surround neutral atoms.
UGH HELP MEEE PLSS

Answers

Beta particles come from the nucleus. Electrons are found around the nucleus.
Beta particles normally travel very fast out of a nucleus in a straight line. Electrons normally orbit the nucleus of an atom.

They both have the same mass and the same charge.

What does the blood pick up? ​

Answers

Oxygen

hope this helps:)

Answer:

 

Explanation:

the cells need oxygen for metabolism, which also creates carbon dioxide as a waste product. The red blood cells then pick up the carbon dioxide and transport it back to the lung. There we exhale it when we breathe out. Red blood cells can also pick up or release hydrogen and nitrogen.

About atoms and molecules plz!?​

Answers

Answer:

Atoms: They are the smallest part of matter that may or may not exist independently. When atoms come together they form molecules.

Molecules: Many atoms combined either chemically or naturally form molecules. They are the smallest unit of matter that exist independently.

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

Why Carbonated drinks are homogeneous mixture

Answers

Answer: Explanation:

Carbonated drinks are mixtures of water, sugar, flavorings, and dissolved carbon dioxide gas. They are homogeneous because the ingredients are mixed together to form a consistent liquid.

A physical quantity that has both magnitude and a direction is the definition of

Answers

Explanation:

Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.

To study the dependant variable, a scientist must A. manipulate the independent variable B. have more than one control group C. manipulate the dependent variable D. have more than one experimental group ​

Answers

Answer:

A

Explanation:

Answer:

A. manipulate the independent variable

Think about what you already know. Why might two objects be affected differently if the same strength force is exerted on them?

Answers

Answer:Explanation:

If the same strength force is exerted on two objects, but the objects have the different masses, the object with less mass will have a greater change in velocity. ... Forces affect motion because they can change an objects motion.

The reason for two objects being impacted differently even a similar strength of the force is applied/exerted to them:

- Two objects might be affected differently on the application of a force of the same strength owing to the difference in their masses.

The second law of motion by Newton states that the rate of change of momentum of an object is directly proportional to the applied unbalanced force in the direction of the force.However, We know, Momentum = Mass × velocity.Hence, if the masses are different and the force applied is the same, the two objects will move with different velocities.

Learn more about "Velocity" here:

brainly.com/question/23275630

21. The speed of light is approximately 3.00 x 108 m/s. What is the speed of light in miles per hr?

Answers

Answer:

6.7*10^8 mi/hr

Explanation:

(3*10^8 m)/1s * (3600 s)/ 1 hr * (1 mi)/ 1609 m

6.7*10^8 mi/hr

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