sort the facts into the category that they best describe sound waves and electromagnetic waves

Answers

Answer 1

Answer:

Sound waves have a low speed of 330 m/s

Sound waves are mechanical waves

Electromagnetic waves have a greater speed of 3.0×10^8 m/s

Electromagnetic waves are due to disturbance of electromagnetic objects.


Related Questions

C
the energy of position or shape
Calculate the Kinetic Energy of a 0.06 kg tennis ball moving at a velocity of 30
m/s *
Kinetic & Potential Energy
KE = { m V? PE = mgh
Quick & Simple!
54
Calculate the memetic energy of a 0.06 kg tennis ball moving at a velocity of 30 m/s

Answers

Answer:

27J  

3528J

Explanation:

First problem:

Given parameters:

Mass of tennis ball  = 0.06kg

Velocity of tennis ball  = 30m/s

Unknown:

Kinetic energy  = ?

Solution:

Kinetic energy is the energy due to the motion of a body.

It is expressed as:

       K.E  = [tex]\frac{1}{2}[/tex] m v²  

       K.E =  [tex]\frac{1}{2}[/tex]  x 0.06 x 30²   = 27J  

Second problem:

Given parameters:

Mass = 30kg

Height  = 12m

Unknown:

Potential energy  = ?

Solution:

Potential energy is the energy due to the position of a body.

  Mathematically;

       Potential energy  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

 Now;

          Potential energy  = 30 x 9.8 x 12  = 3528J

A 10 kg ball is rolled to the top of a hill 37 m high using 4000 J of work. How much energy was lost due to heat?

Answers

Answer:

370.3J

Explanation:

A 10 kg ball is rolled to the top of a hill 37 m high using 4000 J of work. How much energy was lost due to heat?

Step one:

given data

mass m= 10kg

height of the hill= 37m

work done= 4000J

Step two:

The quantity of energy loss due to heat is the same as the difference in the  potential energy possed by the mass and the work done

PE= mgh

PE=10*9.81*37

PE= 3629.7J

Hence the energy loss is

= 4000-3629.7

=370.3J

a person drops a 2.00 kg ball off a building. what is the force of weight on the ball?

Answers

Explanation:

Given

mass (m) = 2 kg

acceleration due to gravity (g) = 10 m/s²

Force (F) = ?

We know

F = m * a

= 2 * 10

= 20 N

The force is 20 N.

Hope it will help :)❤

Answer:

The answer is 19.6

You welcome

When it is winter in the northern hemisphere we are receiving?

A) No sunlight
B) A moderate amount of sunlight
C) Direct sunlight
D) Indirect sunlight

Answers

Answer:

indirect sunlight

Explanation:

we're receiving some sunlight, but not much, if it's winter in one place, it's summer in another

Answer:

indirest sunlight

Explanation:

if there was no sunlight we would die.

Draw Graph for the derivation of three equations of Motion​

Answers

Answer:

Hey mate I shall not tell you the answer I shall explain it to you after this if still you can't understand then say

Explanation:

Derive v = u + at by Graphical Method. Consider the velocity – time graph of a body shown in the below Figure

Derive s = ut + (1/2) at2 by Graphical Method. Velocity so time graph to derive the equations of motion.

Derive v2 = u2 + 2as by Graphical Method. Velocity–Time graph to derive the equations of motion.

I hope you understand now

enjoy your day

#Captainpower :)❤❤

Why do electrons move from the negative end of the tube to the
positive end?

Answers

Because electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.

What will happen to the force of friction when you increase the weight on the cart

Answers

I think the force of friction would increase

What is the net force acting on a box that is being pulled to the right with a 50 N force and to the left with a 10 N force? _________ to the _______

Answers

Explanation:

A box that is pulled by 2 forces:

50N to the right and10N to the left.

50N - 10N = 40N.

Since the force acting towards the right is stronger, there is a net force of 40N to the right and the box will move towards the right (if it has low static friction coefficient)

The answer is 40N to the right.

We have that for the Question "What is the net force acting on a box that is being pulled to the right with a 50 N force and to the left with a 10 N force? _________ to the _______" it can be said that The appropriate statement is

The net Force is 40N to the right

From the question we are told

What is the net force acting on a box that is being pulled to the right with a 50 N force and to the left with a 10 N force? _________ to the _______

Generally the equation for the Net force  is mathematically given as

Fn=F_2-F_1

Therefore

Fn=F_2-F_1

Fn=50-10

Fn=40N

Therefore

The appropriate statement is

The net Force is 40N to the right

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When the motion energy of an object changes, energy is being transferred. How do you know that's true?​

Answers

Answer:

Explanation:  

When objects collide, energy can be transferred from one object to another, thereby changing their motion. In such collisions, some energy is typically also transferred to the surrounding air; as a result, the air gets heated and sound is produced.

(ii) Explain how sound energy is transferred through the wall without transferring matter​

Answers

Answer:

In much the same way, a mechanical wave can carry energy through a medium without moving matter through the medium. ... Because the particles in a solid are tightly packed together, sound waves can quickly transfer energy from particle to particle in a solid.

Which characteristics are common to most salamanders? Check all that apply.

Answers

They undergo internal fertilization. They lose their tails as adults. They have wet, moist skin. They have long, strong legs. They begin life with gills.

A block moves along a table at a constant velocity and then rolls off the edge of the table. The forces that should be included in a free body diagram for the ball as it falls to the ground are:
normal force from table
friction force from table
gravity
force of fall

Answers

Answer:

Gravity

Explanation:

When the ball is falling to the ground, there is only one force- gravity. In some cases, there may be air resistance, but that seems to be neglected here.

Normal force:

Cannot be included. Normal force is only applicable when object is on a surface, and it acts perpendicular to the surface. Since the ball is falling, there is no surface, and therefore no normal force. This question gives you unnecessary information, designed to trick you. Please remember when normal force is applicable.

Friction force:

Also only applicable when object is moving, and is on the table. Friction only applies when there is an applied force. There is no applied force when the ball is falling, so therefore no friction force.

Force of fall:

First of all, what is this? There is nothing called force of fall.

Gravity:

This is the only one that applies. Just draw a vector arrow from the bottom of the ball and label it mg (acceleration due to gravity).

What causes seasons to occur?



A) The revolution of the moon around the earth

B) The rotation of the moon around the Earth

C) The Earths tilt on its axis.

D) The moons tilt on its axis.

Answers

It’s C I hope it helps you

Answer:

C

Explanation:

I believe that it's C

Which change would reverse the direction of the electric current generated through electromagnetic induction?

moving the magnet slower
using more loops of wire in the solenoid
using the opposite pole of the magnet
using a weaker magnet

Answers

Using the opposite pole of the magnet would reverse the direction of the electric current generated through electromagnetic induction.

What takes place while the current is reversed in an electromagnet?

Whilst you opposite the path of the contemporary flowing within the cord, the north and south poles also are reversed. When you reverse the contemporary once more, the north and south poles reverse again. In fact, on every occasion the modern is reversed, the north and south poles will trade places.

Which alternate will reverse the route of the electric modern-day generated thru electromagnetic induction?

A magnet and a coil of wire can be used to provide an electric-powered modern-day. A voltage is produced while a magnet moves into a coil of cord. This procedure is known as electromagnetic induction. The direction of the caused voltage is reversed while the magnet is moved out of the coil once more.

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Answer:

100% C

Explanation:

Positive and negative charger objects affect which type of field?

• gravitational
• electric
• magnetic

Answers

Answer:-

Electric force

The interaction between two like-charged objects is repulsive. ... Positively charged objects and neutral objects attract each other; and negatively charged objects and neutral objects attract each other.

Explanation:

Hope it is helpful...

Willing to give out brainliest... A vat of ethyl alcohol expands by 0.00823 m^ 3 when the temperature is raised by 44.8 °C . What was the original volume of the alcohol ?

Answers

Answer: 0.164

Explanation:

the coefficient for ethyl alcohol b is 1120x10^-6

so (0.00823)/ (1120x10^-6)(44.8) gives you your answer: 0.164

basic nature of friction
gravitational
electromagnetic
nuclear
none of these

Answers

Answer:

what is the question?????????????????????

As the distance between two objects decreases, the pull of gravity

Question 4 options:

1) Is cancelled out


2) Increases


3) Decreases


4) Stays the same

Answers

Answer: increases

Explanation:

Because the relationship between hand d is counter


A planet has two moons, Moon A and Moon B, that orbit at different distances from the planet's center, as shown. Astronomerscollect data regarding the planet, the two moons, and their obits. The astronomers are able to estimate the planet's radius and
mass.
The masses of the two moons are determined to be 2M for Moon A and M for Moon B. It is observed that the distance
between Moon B and the planet is two times that of the distance between Moon A and the planet. How does force exerted from
the planet on Moon A compare to the force exerted from the planet on Moon B?




READ CAREFULLY PLEASE


A) The gravitational force exerted from the planet on Moon A is two times larger than the gravitational force exerted from the planet on Moon B

B) The gravitational force exerted from the planet on Moon A is eight times larger than the gravitational force exerted from the planet on Moon B

C) The gravitational force exerted from the planet on Moon A is two times smaller than the gravitational force exerted from the planet on Moon B

D) The gravitational force exerted from the planet on Moon A is eight times smaller than the gravitational force exerted from the planet on Moon B

Answers

C: The gravitational force exerted from the planet on Moon A is two times smaller than the gravitational force exerted from the planet on Moon B.

B) The gravitational force exerted from the planet on Moon A is eight times larger than the gravitational force exerted from the planet on Moon B

An airplane flies for 1.25 hours with a constant speed of 1080 km/hr and then for another 2.5 hours with a constant speed of 984 km/hr. How far (what distance) did it go?

Answers

Answer:

The airplane went 3810 km

Explanation:

The Distance at Constant Speed

The speed is defined as the rate of change of the distance:

[tex]\displaystyle v=\frac{d}{t}[/tex]

The distance is calculated by solving for d:

d = vt

The airplane first flies at v=1080 Km/h for t=1.25 hours. The first distance is:

d1 = 1080 Km/h * 1.25 h = 1350 Km

Then it flies at v=984 Km/h for t=2.5 hours. The second distance is:

d2 = 984 Km/h * 2.5 h = 2460 Km

The total distance was 1350 + 2460 = 3810 km.

The airplane went 3810 km

Why do electrons stay around the nucleus of an atom?

Answers

Answer:

the nucleus of the atom is positively charged and the electrons are negatively charged, they are attracted to each other...

Answer:

There are 2 different types of neutrons. Negative and positive. They are both fighting over the atom. The atom doesn't know who to pick! The happy one? Or the emo one? They are both staying close because they don't want to lose this fight.  (Actual answer below)

Explanation:

When there are too many protons, some of the outer protons are loosely bound and more free to react with the electron. But most atoms do not have too many protons, so there is nothing for the electron to interact with. As a result, each electron in a stable atom remains in its spread-out wavefunction shape.

PLZ HELP!! FOE A TEST

23. Quantities that can be described completely by their magnitude or size are called vector quantities. (5 points)
True
False

Answers

Answer:

False

Explanation:

Vector has a magnitude and direction.

A scalar is just a magnitude or size.

The answer is false.

What is scalar and vector quantities?

Scalar quantity:

The scalar quantity will have only the magnitude ( how much or size).These scalar quantity are one dimensional. These can be represented only by calculating the changes in the magnitude. If we need to change the value of scalar we are not able to change because it has no directions to determine the values of the quantity.If we have to perform any kind of mathematical operation, i.e., scalar with scalar we get scalar but when we did the mathematical operation with the scalar and vector then we get the answer is in the vector. some of the scalar quantities are as follows:  

        Speed, Mass, length, distance, power, energy, work.

Vector quantity:

The vector quantity will have both magnitude and direction.The vector quantities are one dimensional, 2 dimensional, else can also be 3 dimensional.Vector quantities can be changed or determined both by the magnitude and direction. If we change the adjacent angles then there changes will occur in the direction.We can perform any kind of mathematical operation.Some of the vector quantities are:                                                                                                    Displacement, velocity, acceleration, force, weight, friction, momentum.

Hence, Option B is the correct answer.

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please help!! zoom in to read better should i put it in the middle or the far left? i also need to know why?

Answers

Answer:

They should place the fulcrum to the right ( just before reaching the load ), and they should push the furthest end on the left in order to provide equilibrium.

An applied force of 20 N accelerates a block across a level,frictionless surface from rest to a velocity of 8.0 m/s in a time of 2.5 s. Calculate the work done by this force.

Answers

Answer:

workdone = force × distance

Explanation:

let's find the acceleration

[tex]v = u + at \\ 8 = 0 \times a \times 2.5 \\ \alpha = 3.2m {s}^{ - 2} [/tex]

then distance

[tex] {v}^{2} = {u}^{2} + 2as \\ {8}^{2} = 2 \times 3.2 \times s \\ \\ s = 10m [/tex]

w = f ×d = 20 × 10 = 200J

WILL MARK BRAINLIEST PLEASE HELP AND SHOW ALL WORK
Consider the system shown in FIGURE 9-35. Assume that after the string breaks the ball falls through the liquid with constant speed. If the mass of the bucket and the liquid is 1.20 kg, and the mass of the ball is 0.150 kg, what is the reading on the scale (a) Before (b) After the string breaks?

Answers

Answer:

Same reading.

Explanation:

Assume that after the string breaks the ball falls through the liquid with constant speed. If the mass of the bucket and the liquid is 1.20 kg, and the mass of the ball is 0.150 kg,

A.) Before the string break, the total weight = weight of the can + weight of the water.

According to Archimedes' Principle which state that: “A body immersed in a liquid loses weight by an amount equal to the weight of the liquid displaced.” Archimedes principle also states that: “When a body is immersed in a liquid, an upward thrust, equal to the weight of the liquid displaced, acts on it

B.) After the string break.

The scale will have the same reading as before the string break.

How much work is done by an applied force to lift a 45 newton block 6.0 meters at a constant speed ?

Answers

Answer:

270Joues

Explanation:

Step one:

given data

Force F= 45N

distance moved d= 6m

Required

The work done in moving the block 6m

Step two:

We know that the expression for the work done is

WD= force* distance

WD= 45*6

WD=270Joues

Describe the shape of a convex lens and a concave lens. Describe what effects each type of lens has on light. Then describe how you might use these types of lenses

PLEASE HURRY I AM IN A SCIENCE TEST DUE AT 1:30

Answers

Answer:

Explanation:

Convex lens refers to the lens which merges the light rays at a particular point, that travels through it.

Concave lens can be identified as the lens which disperses the light rays around, that hits the lenses.

What units are used to measure mass?

Answers

Answer:

I think kilogram.

Explanation:

If you refer to science book you can find.

Which statement describes what happens to rocky shorelines that absorb
energy from ocean waves?
A. The shorelines are strengthened.
B. Solid rock breaks apart.
C. The rocks form a barrier, and the shorelines are not affected.
D. Small rocks and sand block the waves' energy.

Answers

Answer:

B. Solid rock breaks apart.

Explanation:

Answer:

B

Explanation:

I did it on a test lol


When Simon goes to the pet store, he plans on getting a new fish for his aquarium.
Using an infinitive, what is the BEST way to revise the underlined words?
A) When Simon goes to the pet store, he plans to get a new fish for his aquarium.
B) When Simon goes to the pet store, he plans for to get a new fish for his aquarium.
C) When Simon goes to the pet store, he plans for getting a new fish for his aquarium.
D) When Simon goes to the pet store, he plans to be getting a new fish for his aquarium.

Answers

A the rest of them do not make sense
A is the correct answer because none of the other ones make sense.
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