which type of wave has rarefactions and compressions

Answers

Answer 1
Longitudinal waves. Hope this helps

Related Questions

in figure Car’s weight = 16,000 N. What is the external input force?

Answers

The answer is 200 Newton

Answer:

The answer is 200 Newtok

The (blank) energy of a baseball can break a window.

1- Kinetic
2- potential

Answers

Answer:

kinetic

Explanation:

since it's energy possessed by a moving body/object.

Kinetic because it’s right and I took this

in longitudinal waves in a spring, the parts where the coils are close together are called

Answers

Answer:

compression

Explanation:

compression

A car starts from rest and retains the acceleration of 4m/s² in 20 second . calculate its final velocity.
STEP BY STEP

Answers

Given : A car starts from rest and retains the acceleration of 4m/s² in 20 second. Calculate its final velocity.

Solution : As we know that a car starts from rest so it's initial velocity should be 0 m/s. Acceleration is 4 m/s² and time taken is 20 sec. So, we need to calculate it's final velocity which we can get it usi g the first equation of motion.

First Equation of Motion : v = u + at

Putting all the required values in the formula we will get v

v = 0 + 4(20)

v = 0 + 80

v = 80

Henceforth, final velocity is 80 m/sec.

what piece of equipment on a boat is most important in preventing propeller

Answers

ignition safety switch
The ignition safety switch, often known as the engine cut-off switch, is the most critical piece of equipment for preventing propeller strike injuries. The purpose of this device is to turn off the boat engine immediately so the propeller will be halted and an accident can be avoided.

Drag the correct object from the left to the statement that goes with it at the right. Use each choice only once. ResetHelp generates energy deep in its core through the fusion of hydrogen into helium has a single moon that is surprisingly large compared to its planet. is orbited by at least two geologically active moons: Titan and Enceladus. has a large moon, Triton, that almost certainly once orbited the Sun independently. has a surface hot enough to melt lead as a result of an extremely strong greenhouse effect. has an axis tilt that gives it very extreme seasons. was studied up close in 2015 by the New Horizons spacecraft. has no surface liquid water today, but shows clear evidence of such water in the distant past. has a famous storm known as the Great Red Spot. is similar in size to Pluto and also considered a dwarf planet. has a greater difference in temperature between its day and night sides than any other world.

Answers

The solar system is bounded together by gravity, and is made up of the Sun  eight planets and dwarf planets

The correct options are;

The Sun generates energy deep in its core through the fusion of hydrogen and into heliumEarth ⇒ has a single moon that is surprisingly large compared to its planetSaturn ⇒ is orbited by at least two geologically active moons: Titan and EnceladusNeptune ⇒ has a large moon, Triton, that almost certainly once orbited the Sun independentlyVenus ⇒ has a surface hot enough to melt led as a result of extremely strong greenhouse effectUranus ⇒ has an axis tilt that gives it very extreme seasonsPluto ⇒ was studied up close in 2015 by the New Horizons spacecraft.Mars ⇒has no surface liquid water today, but shows clear evidence of such water in the distant pastJupiter ⇒ has a famous storm known as the Great Red SpotEris ⇒ is similar in size to Pluto and also considered a dwarf planetMercury ⇒ has a greater difference in temperature between its day and night sides than any other world

Reasons:

The Sun generates energy by nuclear fusion in its cores

The size of the Moon more than a quarter of the Earth's size

Saturn moon Titan shows signs of volcanic activity

The moon Triton rotates in the opposite direction to the rotation of Neptune

Venus is the second closest planet to the Sun with a thick CO₂ atmosphere, resulting in a greenhouse effect that makes the planet 510°C hotter

Uranus has seasons that last for approximately 20 years

The New Horizons spacecraft took 9.5 years to reach Pluto after the mission was launched in 2006

Mars liquid water disappeared billions of years ago

The Great Red Spot storm has lasted for over 300 year

Eris, one of the largest dwarf planets and is further from the Sun than Pluto

The difference in temperature between the day and night sides of Mercury is 427°C - (-180°C) ≈ 607°C

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The air is 80% Nitrogen, in what form do organisms use nitrogen?

Answers

Answer:

Nitrogen in the air

Explanation:

The Earth's atmosphere contains almost 80 % nitrogen gas. It cannot be used in this form by most living organisms until it has been fixed, that is reduced (combined with hydrogen), to ammonia.

Select all that apply.

The spectrum of Star S is compared to a reference hydrogen spectrum. What can be concluded about Star S?

Star S is moving away from Earth.
Star S is moving toward Earth.
Star S has transverse motion.
Star S has radial motion.

Answers

Answer:

Star S has radial motion

Explanation:

Because the radial motion stracture is kinda similar to hydrogen spectrum(I'm guessing,only lol)

The spectrum of Star S is compared to a reference hydrogen spectrum. It is concluded that Star S has transverse motion.

What is hydrogen spectrum?

Hydrogen spectrum is used to show the quantized electronic structure of an atom.

If Star S is not showing radial motion. So, it is not moving away or towards the Earth.

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what process is a form of mechanical weathering ?

Answers

Answer: abrasion-is the physical process by which rocks and clasts are reduced in  size  

Explanation: but i didn't see any answer chooses

Erosion would be the correct answer

need an answer asap



if u know physics pls answer the rest of my question!!

i will give brainliest

Answers

a] negative charge it's e-

HELP!
Electronic signals can travel very long distances in _______ fibers, due to total internal reflection.

Answers

optical fibre

[tex] \huge \mathfrak \blue{hope \: it \: helps}[/tex]

Help asap please thank you

Answers

I think you divide so 2 sorry I’m wrong

Describe all the ways that Newton’s Laws can apply in the game of football?

Answers

Answer:

Newton's Second Law of Motion states that a force on an object is equal to the mass of the object multiplied by its acceleration (F=ma). ... When the punter kicks the ball, his foot exerts a force on the ball. The football then exerts an equal amount of force in the opposite direction on the kicker's foot.

In football, the foot of a kicker applies force to the ball when he kicks it, as the force acting on a ball is equal to that ball's mass times its acceleration, so Newton's second law is applied here.

What is Newton's Second Law?

The precise explanation of how a force can change a body's motion is given by Newton's second law. A body's momentum is said to vary at a rate equal to the force acting on it over time, both in magnitude and direction. A body's momentum is determined by its mass and velocity together.

According to Newton's Second Law of Motion, a force acting on an object is equal to that object's mass times its acceleration (F=ma). The punter's foot applies force to the ball when he kicks it. The kicker's foot is then subjected to an equivalent force from the football acting in the opposite direction.

Therefore, In football, the foot applies force to the ball when he kicks it, so Newton's second law is applied here.

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imagine you would interview a news Anchor about how they use graphs in presentation of Science in the news think of at least four questions you would ask then imagine how they would answer your question

Answers

Answer:

The conventional wisdom of the digital era is that journalists can now know their audiences in far more intimate detail than at any other time in the history of the profession. Previously, journalists based their audience knowledge primarily on their closest social circles. Now, new tools can help them solicit readers’ feedback, analyze and understand readers’ behavior, and open new channels for conversation. These new capabilities promise to shine a light on the abstract audience — making one’s readers present, quantified and real

Sound wave is an example of ……………………………………. wave.
1.Energy
2.Medium
3.Transverse
4.Longitudinal

Answers

Answer:

4

Explanation:

longitudinal

have a beautiful day ahead

what is deltoids muscle?

Answers

Answer:

The deltoid muscle is a large triangular shaped muscle associated with the human shoulder girdle, explicitly located in the proximal upper extremity.

Explanation:

A 70 kg child escapes from a burning building by walking off a roof 30 m above a catching net. Assuming that resistance is a constant 90 N on the child during their fall, calculate the person's velocity just before hitting the net.

Answers

Newton's second law and kinematics allow to find the result for the velocity at the point of reaching the child's net is:

           v = 23.7 m / s

Newton's second law states that the net force is proportional to the mass and acceleration of the body.

              ∑ F = m a

Where F is the force, m the mass and the acceleration of the body.

In the attachment we can see a free body diagram of the system, where the positive direction is up.

              F -W = m a

Weight is

             W = m g

             [tex]a = \frac{F}{m} - g[/tex]  

Let's calculate

             [tex]a= \frac{30}{70} - 9.8[/tex]  

             a = -9.37 m / s²

Negative indicates downward direction.

 

Kinematics studies the movement of the body, let's look for speed.

           v² = v₀² - 2 a (y-y₀)

Where v is the speed, v₀ is the initial speed, a tha acceleration ang (y-y₀) is the eight.

As the child is released, his initial velocity is zero, upon reaching the floor his height is zero and his initial height is I = 30 m.

           [tex]v= \sqrt{2 a y_o}[/tex]

Let's calculate

           v = [tex]\sqrt{2 \ 9.37 \ 30}[/tex]  

          v = 23.7 m / s

In conclusion using Newton's second law and kinematics we can find the velocity at the point where the child reaches the net is:

           v = 23.7 m / s

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The velocity of the child before hitting the ground is 22.596 m/s.

The given parameters;

mass of the child, m = 70 kgheight of the roof, h = 30 mair resistance on the child, F = 90 N

The weight of the child acting downwards is calculated as follows;

W = mg

W = 70 x 9.8

W = 686 N

The net force on the child is calculated as follows;

∑Fₙ = 686 N - 90 N

∑Fₙ = 596 N

The acceleration of the child is calculated as follows;

F = ma

[tex]a = \frac{F}{m} \\\\a = \frac{596}{70} \\\\a = 8.51 \ m/s^2[/tex]

The velocity of the child before hitting the ground is calculated as;

v² = u² + 2as

v² = 0 + (2 x 8.51 x 30)

v² = 510.6

v = √510.6

v = 22.596 m/s

Thus, the velocity of the child before hitting the ground is 22.596 m/s.

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A battery-powered lawn mower has a mass of 48.0 kg. If the net external force on
the lawn mower, including both your push and any resistance, is 40.5 N, then what
is the mower's acceleration?

Answers

F= mass*acceleration
_40.5=48.0*a
a=40.5/48.0
a=0.84m/s

The lawnmower's acceleration is 0.844 meters/sec².

Given to us:

Mass of the lawnmower, m = 48.0 kgs. ,

Net external force, F = 40.5 N,

As we know, a force can change the motion of an object. A force causes an object with mass to change its velocity.

Therefore, when we calculate force, we take force as a net force.

[tex]\bold{ Force= Mass\times (change\ in\ velocity)=Mass\times acceleration}[/tex]

[tex]F = m\times a\\40.5 = 48 \times a\\\\a= \dfrac{40.5}{48} \\\\a= 0.844\ m/sec^2[/tex]

Hence,  the lawnmower's acceleration is 0.844 meters/sec².

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Calculate the pressure increase at the bottom of a pool of depth 2m. Density of water=1000kg/m^3 g=10N/kg

Answers

Please check the attached picture
Pa = atmospheric pressure (look it up in units of N/m^2)
D = density of water (given as 1000 kg/m^3)
h = depth of water = 3m
g = acceleration of gravity = 9.8 m/s^2

At a depth of h (meters), the static pressure is

P(h) = Pa + Dgh

Plug in the numbers and get P(h) in units of N/m^2.

Which describes a phase change? (Select all that apply.)
Energy is released or absorbed.
The process is reversible.
The process moves atoms into permanent places.
The compounds transform protons into neutrons.

Answers

Answer:

Energy is released or absorbed

The process is reversible

Phase change can be described as:

Energy is released or absorbed.The process is reversible.

What is phase change?

The physical process of changing a medium's state from one to another is known as a phase transition (or phase change) in the domains of chemistry, thermodynamics, and other related sciences.

The phrase is frequently used to describe transitions between the three fundamental states of matter—solid, liquid, and gas—and, in rare instances, plasma.

The physical characteristics of a phase of a thermodynamic system and the states of matter are constant. Certain properties of a given medium change during a phase transition as a result of a change in the environment, such as temperature or pressure. This change can be discontinuous.

Hence, Phase change can be described as:

Energy is released or absorbed and the process is reversible.

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PLS HELP, 20 POINTS
Which statement accurately describes the motion of the object in the graph above?
A. It moved from 3 cm to 10 cm at a constant speed of 2 cm/s.

B. It moved from 0 cm to 6 cm at an average speed of 1 cm/s.

C. It moved from 0 cm to 10 cm at an average speed of 2 cm/s.

D. It moved from 3 cm to 6 cm at a constant speed of 3 cm/s.​

Answers

Answer:

A. It moved from 3 cm to 10 cm at a constant speed of 2 cm/s.

Explanation:

Just took the quiz.

It moved from 3 cm to 6 cm at a constant speed of 3 cm/s.​ This  statement accurately describes the motion of the object in the graph above

What is motion of object  ?

An object is said to be in motion , if its position changes with respect to its surroundings and time.

A. Object's motion is from 3 cm to 10 cm at a constant speed of 2 cm/s

let us check

time = 7 sec

distance = 10 - 3 = 7 sec

speed = distance / time = 7/7 = 1 m/s

wrong option

B. Object's motion is from 0 cm to 6 cm at an average speed of 1 cm/s.

distance = 6 cm

time = 7.5 sec

speed = 6/7.5 = 0.8 m/s

wrong option

C. Object's motion is from 0 cm to 10 cm at an average speed of 2 cm/s.

distance = 10 cm

time = 9 sec

speed = 10 / 9 = 1.11 m/s

wrong option

D.  Object's motion  is from 3 cm to 6 cm at a constant speed of 3 cm/s.​

distance = 6-3 = 3 cm

time = 7.5 - 6.5 = 1 sec

speed = 3 /1 = 3 m/s

correct option  D. It moved from 3 cm to 6 cm at a constant speed of 3 cm/s.​

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A box is being pushed at constant speed up an inclined

Answers

Answer:

ok what is the question

Explanation:

I don't know what the question is

which type of energy does a ball falling through the air have?

Answers

Answer:

the answer would be kinetic energy

A cup of tea with a temp. of 80°C is put on a table in a 20°C room. What happens to thermal energy and molecular motion of the tea when it is left on the table? *

Answers

Answer:

The thermal energy increases and the molecules move faster.

A mango fruit drop from a branch 10m above the ground. Just before hitting the ground the velocity is ?​

Answers

Answer:

Below

Explanation:

Here are all the values we are given :

dy = 10m

We know that :

a = 9.8 m/s^2 because it is a free falling object

vi = 0 m/s

Here is the formula to find the final velocity :

     vf^2 = vi^2 + 2ad

     vf^2 = (0)^2 + 2(9.8)(10)

     vf^2 = 196

         vf = 14 m/s

Therefore the mango's velocity before hitting the ground is 14 m/s

Hope this helps!

Which city has the lowest temperature and slowest speed of sound?
a. Baguio
b. Manila
c. Lipa
d. Cagayan
e. Cebu
f. Tagaytay​​

Answers

ITS A a AAA A A  a A A  A A A A A

Quinn accelerates her skateboard along a straight path from 0 m/s to 4.0 m/s
in 2.5 seconds. Calculate the acceleration of the skateboard

Answers

initial velocity=u=0m/sFinal velocity=v=4m/sTime=t=2.5s

[tex]\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{4-0}{2.5}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{4}{2.5}[/tex]

[tex]\\ \sf\longmapsto Acceleration=1.6m/s^2[/tex]

A possible answer to a scientific problem is called a

Answers

Answer:

A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.

Explanation:

Answer:

hypothesis is likely tobe the answer, im indian

Why is Energy not created nor destroyed?
(Need the answer ASAP!!)

Answers

Since both heat and work can be measured and quantified, this is the same as saying that any change in the energy of a system must result in a corresponding change in the energy of the surroundings outside the system. In other words, energy cannot be created or destroyed.

has your doctor ever said that you should only do physical activity? yes or no​

Answers

No,

Doctor not only advice for physical activity but also for social and mental activities

Answer:

No

Explanation:

Your doctor wouldn't said anyone to do only physical activities.Physical activities is not enough.You should be mentally fit as well as physicallyFor mental fitness you should do mental activities
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Consider the following polynomial inequality.x^2(x+5)(x6)>0Set one side equal to zero and list the interval endpoints (the only points at which the non-zero expression can change sign).Separate multiple answers with a comma. c) They play games be fit and fine, (because/in order to Iso that/therefore) A local maximum of the function f(x) occurs for which x-value? 20) In the town of Eagle Pass, 5 out of 13 vehicles are trucks. Whatpercent of the vehicles are trucks? Round to the nearest tenth. *48.5%38.5%24.5%12.5% Which is the best explanation for a convection current in the atmosphere?Question 4 options:Hot air expands and rises to the top of the atmosphere, while the cool air stays below it.Hot air expands and rises, becoming cooler and denser, then falling again in a continuous processCold air expands and rises, becoming warmer and contracting, then falling again in a continuous cycle.Cold light air rises in the atmosphere, while the warmer air stays near the ground. find the area of a square with a side length of 1/5 in. How many sides does a dodecahedron have? Banksy is most associated with which city? Determine the responsibilities of upper management. PLEASE HELP WILL MARK BRAINLIEST!! (THANK YOU) Which modern American institution is heavily influenced by the Roman Forum?Someone plzzz help me I dont know the answer What is the first step in simplifying the expression (2-34+5)^2 ?(1) square 5(2) add 4 and 5(3) subtract 3 from 2(4) multiply 3 by 4 How can a senator prevent a vote on a bill?A. The senator can add a rider to the bill.B. The senator can filibuster.C. The senator can refuse to put the bill on the calendar.D. The senator can use a cloture. How can music become a voice for groups excluded from equal opportunity? Givesome examples. a remote control car costs $60. it is reduced to $45 in the sale. by what percentage was the price reduced Metals have special bonds, between atoms. The valence electrons are mobile and are shared by all metal atoms present. Metals exhibit ______ due to the mobility of valence electrons.a)brittlenessb)high conductivityc)low melting pointd)high solubility in water What was the significance of the First Great Awakening? A. It religious services more formal. B. It encouraged the idea of rationalism. C. It maintained a traditional style of religion. D .It reawakened interest in the Christian faith. What is 3n^2 + 12n - 11 = 0 a car takes off from rest and covers a distance of 80m on a straight road in 10s.calculate the magnitude of its acceleration Can someone please help PLEASE HELP I DONT GET THIS