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3 years ago

Which property of the sound wave undergoes a change with an increase in its energy?

2 answers:

Nadusha1986 [10]3 years ago

6 0

"Amplitude" is the one property of the sound wave among the following choices given in the question that <span>undergoes a change with an increase in its energy. The correct option among all the options that are given in the question is the third option or the penultimate option. I hope the answer helps you.</span>

rjkz [21]3 years ago

3 0

Answer:

Amplitude

Explanation:

Sound is the form of energy which gives us the sensation of hearing.

Sound wave are mechanical waves and they propagates as longitudinal wave motion.

The speed of sound is maximum in solids and minimum in gases.

The energy of sound waves is directly proportional to the square of amplitude of the sound wave.

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Explain how the basic unit are combined to give the derived units of force, velocity, pressure and work

LuckyWell [14K]

Velocity:

Velocity is change in displacement with respect to time:

$\frac{\Delta x}{\Delta t}$

Analysing the units, meters (displacement) and seconds (time) are basic units:

$\frac{m}{s}$

Therefore the unit of velocity is m/s

Force:

Newton's second law of motion:

$F = ma$

Kilogram (mass) is a basic unit, and accelerations unit can be found using the equation:

$a=\frac{\Delta v}{\Delta t}$

Analysing the units:

$\frac{\frac{m}{s}}{s}=\frac{m}{s^2}$

Therefore, the unit of force is:

$kg\frac{m}{s^2}$

Pressure:

Pressure is given by the equation:

$P=\frac{F}{S}$ where S is area of effect, F is force

Area for a basic rectangle (geometric shape is arbitrary for dimensional analysis) is found by multiplying two lengths:

$[l^2]=m^2$ , the unit of area

Dividing the aforementioned unit of force by the unit of area:

$\frac{kg\frac{m}{s^2}}{m^2}=\frac{kg}{ms^2}$ , the unit of pressure

Work:

Work is given by the equation:

$W=\vec{F}\cdot \vec{x}$ , (dot product may be assumed as normal multiplication for the purposes of unit analysis)

Knowing displacement's (x) unit is m:

$[W]=\frac{kgm}{s^2}m=\frac{kgm^2}{s^2}$ , the unit of work.

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3 years ago

What are the two major characteristics that change when air is heated and cooled ? How do these characteristics change the movem

sleet_krkn [62]

Two major characteristics that change when air is heated and cooled is the density and the direction of the air flow. They change the movement of the air by heated air rises and cooled air doesn't.

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3 years ago

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Alenkinab [10]

And because of gravity it falls back down to the earth.

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natka813 [3]

Calculate its average speed in meters per second

Answer:

5.77 m/s

Explanation:

Speed= Distance/Time

Distance= 40+ half of 40= 40+20= 60 m

Time= 8.8+1.6=10.4 s

Average speed= 60/10.4=5.769230769 m/s

Approximately, the average speed is 5.77 m/s

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Which type of wave can travel without a medium

Norma-Jean [14]

Electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

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