Find the correct statement
The disturbance created by a source of sound in the medium do not travels through the medium but the particles of the medium does.
The disturbance created by a source of sound in the medium travels through the medium and not the particles of the medium
The particles and the disturbance created by a source of sound in the medium do not travels through the medium
The disturbance created by a source of sound in the medium travels through the medium along with the particles of the medium

Answers

Answer 1

Answer:The disturbance created by a source of sound in the medium travels through the medium and not the particles of the medium

Explanation:i hope this is right


Related Questions

The transformation of energy in the picture below is light energy - electrical energy. What object in the house would then complete transformation thermal (heat) energy?​
A) toaster
b) blender
c) television
d) remote control car

Answers

Answer:

Toaster

Explanation:

A toaster draws electric current (electrical energy) from a wall outlet and converts these moving electric charges into heat (thermal energy) in the filaments that turn red hot to cook your toast. ... As electricity runs through the filaments in a space heater, the electrical energy is converted into heat (thermal energy).

A parallel plate capacitor is made out of two plates, each 1.0 m2 that are 0.02 m apart. The voltage between the plates is 1000 V. Which change will double the electric field between the plates?


a) Bring the plates so that they are 0.01 m apart.

b) None of the changes will double the electric field

c) Increase the voltage across the plates to 1500 V

d) Make both plates 2.0 m2

e) Separate the plates to 0.04 m

Answers

The change will double the electric field between the plates is (a) Bring the plates so that they are 0.01 m apart.

The electric field between the plates of a parallel plate capacitor is given by E = V/d, where V is the voltage between the plates and d is the distance between them.

a) If the plates are brought closer together to a distance of 0.01 m, the electric field between them will double. The new electric field will be E = (1000 V)/(0.01 m) = 100,000 V/m.

b) This statement is incorrect. Changing the distance between the plates or the area of the plates will affect the electric field, but not necessarily double it.

c) Increasing the voltage across the plates to 1500 V will not double the electric field. The new electric field will be E = (1500 V)/(0.02 m) = 75,000 V/m.

d) Increasing the area of the plates will not double the electric field. The new electric field will be E = (1000 V)/(0.02 m) = 50,000 V/m, which is half the original electric field.

e) Increasing the distance between the plates to 0.04 m will not double the electric field. The new electric field will be E = (1000 V)/(0.04 m) = 25,000 V/m, which is one-fourth the original electric field.

Therefore, the correct answer is (a) Bring the plates so that they are 0.01 m apart.

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The "small" version of what common unit of measure is equal to 4.1868 of the SI unit of energy (joules), while the "large" version is equal to 4,184 joules?

Answers

The common unit of measure being referred to here is the calorie.

The "small" version of a calorie, also known as the gram calorie, is equal to 4.1868 joules of energy.

This unit is commonly used in the field of nutrition to measure the energy content of food.

On the other hand, the "large" version of a calorie, also known as the kilocalorie or Calorie (with a capital C), is equal to 4,184 joules of energy.

This unit is used to measure the energy required by the human body to maintain basic functions and perform physical activities.

It is also the unit commonly used on food labels to indicate the energy content of a particular food item.

It is important to note that while the gram calorie and the kilocalorie are both commonly used, the latter is the more widely recognized and accepted unit of energy in most countries around the world.

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Determine the momentum of a 13,000kg semi driving at 30 m/s

Answers

Answer:

390000

Explanation:

The momentum is huge. You wouldn't want this thing to hit you.

Momentum = m*v

m = 13000 kg

v = 30 m/s

Momentum = 13000 * 30

Momentum = 390000 kg m/s

A signal has a frequency range from 300mhz to 1ghz. what is the frequency bandwidth in hz?

Answers

the frequency bandwidth in hz = 70,00,00,000 hz

How is the bandwidth calculated in hz?

1GHz = 1000MHz

Bandwidth = 1000mhz - 300mhz

Bandwidth = 700mhz

The frequency in hertz can be converted to hertz by multiplying by 1,000,000.

= 700 × 1000000

= 70,00,00,000 hz

Bandwidth of a channel is referred to as the range of frequencies available for transmission of data through that channel. It is the difference of maximum and minimum frequency contained in the composite signals.

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The acceleration due to gravity on Pluto is less than that on the Earth. The mass of a person on Pluto will be

Answers

The exact same.  gravity has no effect on mass.

Answer:

The acceleration due to gravity on Pluto is less than that on the Earth. The mass of a person on Pluto will be Less

Explanation:

CAN ANYONE HELP ME???????????

CAN ANYONE HELP ME???????????

Answers

Answer:

D -- 12

Explanation:

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!

explain why you and a friend would touch two identical objects that are at the same temperature, but one of you would describe the object as hot and the other would describe it as cold.

Answers

You and a friend would touch two identical objects that are at the same temperature, but one of you would describe the object as hot and the other would describe it as cold because the perception of temperature is subjective and can be influenced by several factors, including individual sensitivity, past experiences, and environmental conditions.

The perception of temperature is subjective and can be influenced by several factors, including individual sensitivity, past experiences, and environmental conditions. Therefore, it is possible for two people to touch identical objects at the same temperature and have different perceptions of whether the object feels hot or cold.

Firstly, individual sensitivity plays a role. People have different thresholds for temperature detection and tolerance. Someone who is more sensitive to temperature changes may perceive the object as hotter compared to someone with lower sensitivity.

Secondly, past experiences shape our perception of temperature. If one person has recently touched a colder object or experienced cold weather, they may perceive the object as relatively hotter. Conversely, if the other person has touched a hotter object or experienced warm conditions, they may perceive the object as relatively colder.

Lastly, environmental factors such as ambient temperature and humidity can affect our perception. For example, if the surrounding temperature is cooler, the object may feel relatively hotter in comparison.

In summary, the perception of hot or cold is subjective and influenced by individual sensitivity, past experiences, and environmental factors. Therefore, two individuals touching identical objects at the same temperature can describe it differently based on their unique perceptions.

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Assume that a machine puts out 8000 joules of work when the user puts in 10,000 joules of work. What is the efficiency of the machine?

Answers

Answer:

80 Percent

Explanation:

E=energy output/energy input×100

E=8000/10000×100

E=0.8×100

E=80 percent.

Mark brianliest if my answer suit your question

If the machine put, in 8000 J, and the user puts 10,000 J of work then the efficiency of the machine will be equal to 80%.

What is Work?

Work is a physics term used to describe the transfer of energy that takes place when an object changes above a distance because of an external force, at least some of which is given in the vector of the dislocation. The element of the force acting all along the path multiplied by the length of the path can be used to calculate work if the force is constant.

Mathematically, this idea is expressed as W = fd, where W is the effort and f is the force multiplied by d, the distance. Work is completed whenever the force is applied at an angle with about the displacement.

As per the data provided in the question,

Total input energy = 10,000 J

Total output energy = 8,000 J

Then, the efficiency (η) of the machine will be,

η = (output energy/input energy) × 100

η = 8000/10000 × 100

η = 80%.

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List four functions of the skeletal system.

Answers

The major functions of the bones are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and hematopoiesis.

Explanation:

It protects your organs

allows movement

gives the body shape

it store minerals

A telescope is used to take two images, one magnified 100x and the other magnified 400x. In which image would you be able to see the most detail and why?.

Answers

We can see the image in most detail that having 400x magnification as compared to 100x.

What is magnification?

Magnification is the process in which the size of an object is enlarging but not physical size of something. Those instruments having high magnification power can shows us the image larger and due to which we can see that image clearly.

So we can conclude that we can see the image in most detail that having 400x magnification.

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Weighing 15,000 N is parked on a 10 m2 hydraulic lift platform. What is the area of ​​a small piston if a 1,100 N nozzle is used to lift the vehicle?

Answers

Answer:

\(A_2=0.74\ m^2\)

Explanation:

Given that,

Weight, F₁ = 15,000 N

Area, A₁ = 10 m²

Weight, F₂ = 1100 N

We need to find the area of the small piston. The pressure exerted on both piston will be equal such that,

\(\dfrac{F_1}{A_1}=\dfrac{F_2}{A_2}\\\\A_2=\dfrac{F_2A_1}{F_1}\\\\A_2=\dfrac{1100\times 10}{15000}\\\\A_2=0.74\ m^2\)

So, the area of the smaller piston is \(0.74\ m^2\).

9 Two wells are located at points A and B respectively. Point C is the middle point between A and B. When water is pumped out from Well A only, the drawdown at C is 7 in. if water is pumped out from well A whle water is poured in from well B at the same rate, what is the drawdown(ft) at point C?

Answers

Answer:

0

Explanation:

When water is pumped out of well A, it causes a drop of 7 inches at point C; if water is pumped from well B into well A (at the same rate the water is pumped out of well A), then it will give a rise of 7 inches at well C. Therefore the net drawdown at well C is:

S = 7-7 = 0

A diver has a mass of 90 kg. If he climbs ip a diving platform 12m high, how much potential energy does he have.

Answers

Answer:

10,584 J

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

PE = 90 × 9.8 × 12 = 10,584

We have the final answer as

10,584 J

Hope this helps you

rank each pendulum on the basis of the initial gravitational potential energy (before being released) of the pendulum-earth system. rank from largest to smallest to rank items as equivalent, overlap them.

Answers

Pendulum B has the largest initial gravitational potential energy, followed by Pendulum A, C, and D in descending order.

To rank the pendulums on the basis of the initial gravitational potential energy, we need to consider the mass and height of each pendulum.

The formula for gravitational potential energy is given by PE = mgh, where PE is the gravitational potential energy, m is the mass, g is the acceleration due to gravity, and h is the height.

So, the larger the mass and the higher the height, the greater the gravitational potential energy.

Let's compare the pendulums:

1. Pendulum A: Mass = 2 kg, Height = 3 m
2. Pendulum B: Mass = 4 kg, Height = 2 m
3. Pendulum C: Mass = 1 kg, Height = 4 m
4. Pendulum D: Mass = 3 kg, Height = 1 m

To calculate the gravitational potential energy for each pendulum, we can use the formula PE = mgh.

For Pendulum A:
PE = (2 kg) x (9.8 m/s²) x(3 m) = 58.8 J

For Pendulum B:
PE = (4 kg) x (9.8 m/s²) x (2 m) = 78.4 J

For Pendulum C:
PE = (1 kg) x (9.8 m/s²) x (4 m) = 39.2 J

For Pendulum D:
PE = (3 kg) x (9.8 m/s²) x (1 m) = 29.4 J

Ranking the pendulums from largest to smallest initial gravitational potential energy, we have:

1. Pendulum B: 78.4 J
2. Pendulum A: 58.8 J
3. Pendulum C: 39.2 J
4. Pendulum D: 29.4 J

Therefore, the pendulums ranked in terms of initial gravitational potential energy from largest to smallest are: B, A, C, D.

Pendulum B has the largest initial gravitational potential energy, followed by Pendulum A, C, and D in descending order.

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What is the speed of the elevator after it has moved downward 1.00 from the point where it first contacts a spring?
When the elevator is 1.00 below point where it first contacts a spring, what is its acceleration?

Answers

The speed of the elevator after it has moved downward 1.00 from the point where it first contacts a spring is 2.23 m/s.

The acceleration of the elevator when it is 1.00 below the point where it first contacts a spring is -9.8 m/s².

The speed of the elevator after it has moved downward 1.00 from the point where it first contacts a spring is 2.23 m/s. When the elevator is 1.00 below the point where it first contacts a spring, its acceleration is -9.8 m/s². This is because the elevator is moving downwards and accelerating due to gravity.
To solve for the speed of the elevator after it has moved downward 1.00 from the point where it first contacts a spring, we need to use the formula for potential energy and kinetic energy:
Potential Energy (PE) = Kinetic Energy (KE)
mgh = 1/2 mv²
where m is the mass of the elevator, g is the acceleration due to gravity, h is the height, and v is the velocity.
Rearranging the formula, we get:
v = √(2gh)
Substituting the given values, we get:
v = √(2 × 9.8 × 1) = 2.23 m/s
To solve for the acceleration of the elevator when it is 1.00 below the point where it first contacts a spring, we simply use the acceleration due to gravity which is -9.8 m/s². The negative sign indicates that the acceleration is directed downwards.
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where is A what is the answer?

Answers

A is nowhere to be found

I NEED ANSWERS ASAP!!!!! Suppose you apply a force of 75 N to a 25-kg object. What will the acceleration of the object b? (Remember a=F/m)




225 m/s2



25 m/s2



3 m/s2



25N

Answers

Answer:

C. 3m/s^2

Explanation:

Which object has potential energy but not kinetic energy?

A.
A battery in a pair of headphones

B.
A person riding an elevator upward

C.
A person climbing a ladder

D.
A car that is slowing down

Answers

Answer:

A.

A battery in a pair of headphones

Explanation:

Potenial energy - the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

The Moon contains approximately 7.35 x 10^22 kg of mass. This unit of mass does not have direction which makes it a _____

A. Direction
B. Magnitude
C. Scalar
D. Vector

Answers

Answer:

C. Scalar.

Step-by-step explanation:

Scalar quantities are physical quantities that have only magnitude and no direction. Mass is an example of a scalar quantity, and it is expressed in units such as kilograms or grams. In contrast, vector quantities such as velocity, acceleration, and force have both magnitude and direction.

please help :(
3.) What is the physical quantity which
represents the basis of the functioning of a
loudspeaker?
4.) Why doesn't a direct current operate a
loudspeaker?​

Answers

3. A loudspeaker works because of the “motor effect” meaning electricity and a magnetic field cause movement.

4. A direct current will cause momentary movement in one direction only. For the speaker to produce sound you would need alternating current which makes the cone vibrate back & forth.

what is the volume in millilitre of a 250 cm3 beaker

Answers

Answer:

250 mL

Explanation:

A car is travelling along the road where the speed limit is 30 mph. A speed detector measures it speed as 15 m/s. Use this fact to work out whether or not the car is breaking the speed limit: there are 1609 m in a mile

Answers

Answer:

The speed of the car is in from as the required speed limit on the road.

Explanation:

The speed limit on the road is 30 miles per hour.

Given that: 1 mile = 1609 m

Also,

60 second = 1 minutes

60 minutes = 1 hour

Then,

30 miles per  hour = \(\frac{30 *1609}{60*60}\)

                              = \(\frac{48270}{3600}\)

                              = 13.4083

30 miles per  hour  = 13.41 m/s

The speed measured by the detector is 15 m/s which is not accurate. Therefore, the car was moving at the required speed limit. The speed of the car is lesser than that measured by the detector. Thus no offence has been committed by the driver.

Where does the emitted electron come from in beta decay?

Answers

The beta particle, which may be either negatively charged negatrons or positively charged positrons, originates from the nucleus of an atom.

What are the types of charges?

There are only two types of electric charges present, positive charge, and negative charge. They both have the same amount of charge present on them, but with opposite signs. Positive charges are also known as Protons and the electric field lines come out of the positive charge.

Why are charged words used?

In most argumentative and opinionated articles, charged words should be used. After all, these words are used to engage the reader and make your words stick as more than just words in their mind.

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A plane flies 459 km east from city A to city B in 41.0 min and then 909 km south from city B to city C in 1.80 h. For the total trip, what are the:


a. magnitude (in km)

b. direction of the plane's displacement

c. magnitude (in km/h)

d. direction of its average velocity

e. its average speed (in km/h)

Answers

a. The magnitude of the plane's total displacement is approximately 979.6 km.

b. The direction of the plane's displacement is approximately 221.9 degrees (measured counterclockwise from the east).

c. The magnitude of the plane's average velocity is approximately 544.2 km/h.

d. The direction of the plane's average velocity is approximately 221.9 degrees (measured counterclockwise from the east).

e. The average speed of the plane is approximately 550.6 km/h.

To solve this problem, we can break down the plane's motion into its eastward and southward components.

Distance from A to B: 459 km

Time from A to B: 41.0 min = 0.683 h

Distance from B to C: 909 km

Time from B to C: 1.80 h

a. Magnitude of total displacement:

We can calculate the total displacement by finding the distance between the initial and final positions of the plane. Since the displacement is a vector quantity, we use the Pythagorean theorem:

Displacement = √((Δx)² + (Δy)²)

Δx = 459 km (east)

Δy = 909 km (south)

Displacement = √((459 km)² + (909 km)²) ≈ 979.6 km

b. Direction of displacement:

We can find the direction of the plane's displacement by using trigonometry. Since the plane moves east and then south, we can calculate the angle relative to the positive x-axis (east):

θ = arctan(Δy/Δx) + 180 degrees

θ = arctan(909 km / 459 km) + 180 degrees ≈ 221.9 degrees

c. Magnitude of average velocity:

Average velocity is defined as the displacement divided by the total time taken:

Average velocity = Displacement / Total time

Displacement = 979.6 km

Total time = 0.683 h + 1.80 h = 2.483 h

Average velocity = 979.6 km / 2.483 h ≈ 544.2 km/h

d. Direction of average velocity:

Since the displacement and average velocity have the same direction, the direction of average velocity is also 221.9 degrees (counterclockwise from the east).

e. Average speed:

Average speed is the total distance traveled divided by the total time taken:

Average speed = Total distance / Total time

Total distance = 459 km + 909 km = 1368 km

Total time = 0.683 h + 1.80 h = 2.483 h

Average speed = 1368 km / 2.483 h ≈ 550.6 km/h

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Change the following back to a standard number... (3.15 x 10-3)

Answers

You mean simplify it? I don’t see how this is a physics question.

A cat chases a mouse until the cat gets tired. A graph of the cat's velocity over time is shown below. Velocity 8+ 6+ 9+ 2 Time is) 2 3 What is the cat's average acceleration from 12 to 24 seconds? Answer using two digrii cont ligures​

Answers

Answer:

-0.67

Explanation:

khan academy

(final velocity minus initial velocity) divided by time

Answer:

-0.67

Explanation:

khan academy

1. The weight of body in air is 20N displaced 5N when emerged into water. The mass of body in water is ??​

Answers

Answer:

5 N

Explanation:

Archimedes' principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces.

In this case, The weight of an object in air is 20N and it weighs x N when fully immersed in water. So, the weight of the water displaced is given as;

20 − x = 5

Therefore, the weight of the body in water is 5 N.

A binary star system that is detected from the drop in luminosity as one star passes in front of the other is called ___________.

Answers

A binary star system that is detected from the drop in luminosity as one star passes in front of the other is called eclipsing. It has two stars.

What is a binary system?

A binary system is a system composed of two stars that exert gravitational forces on a group of celestial bodies.

In a binary system, planets and celestial bodies can exhibit well-defined or irregular (very unstable) orbits.

The eclipsing binaries are stars where binary planets orbit in a plane containing the same line of vision, thereby eclipsing each other.

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Which statement describes the energy involved in diffusion?

Answers

hope that helps

Explanation:  Diffusion requires energy only to move material in through the cell membrane. Diffusion does not require energy in any situation. Diffusion requires energy only to move material out through the cell membrane.

Answer:

The answer is B >:3

Explanation:

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