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3 years ago

The_______theory of matter states that all particles of matter are in constant motion.

Physics

2 answers:

MA_775_DIABLO [31]3 years ago

6 0

<u>Answer </u>

kinetic

<u>Explanation</u>

Matter is anything that occupies space and has mass. There are four states of matter, solids, liquids, gases and plasma. All this consist of small molecules that are in constant random motion. This is called kinetic theory of matter.

When these molecules are in motion they may collide. No energy is gained or lost during collision. The particle/molecules move in a constant linear motion.

zavuch27 [327]3 years ago

5 0

The kinetic theory of matter states that all particles of matter are in constant motion.

<h2>Further Explanation </h2><h3>Matter </h3>

Matter is anything that has weigh and occupies space. There are three states of matter; solid, liquid, and gases.

<h3>Kinetic theory of Matter </h3>

The kinetic theory of matter states that matter is made up of many small particles such as atoms or molecules that are in continuous random motion.
The particles making up matter possess energy which varies depending on the temperature which determines the state of matter. Particles in solid state have the lowest energy while particles in the gaseous state have the highest amount of energy.
Kinetic theory of matter helps explain the states of matter and why there are different states of matter.

According to kinetic theory of matter:

Matter is made up many particles that are in constant movement
All particles in matter possess energy and depends on temperature
Average kinetic energy of particles is measured by the temperature of a substance
Change in kinetic energy of particles may cause a change in the phase of matter.
Particles in matter experience attractive forces between them which increases with decrease in distance between the particles. The attractive forces are called inter-molecular forces.

Keywords: Matter, kinetic theory, phases of matter

<h3>Learn more about: </h3>

Phases of matter: brainly.com/question/12578033
Kinetic theory of matter: brainly.com/question/6978491

Level: High school

Subject: Physics

Topic: Particulate Nature of Matter

Sub-topic: Kinetic theory of matter

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3 years ago

What is the density (in kg/m3) of a woman who floats in freshwater with 4.92% of her volume above the surface

kipiarov [429]

Answer:

The density of the woman is 950.8 kg/m³

Explanation:

Given;

fraction of the woman's volume above the surface = 4.92%

then, fraction of the woman's volume below the surface = 100 - 4.92% = 95.08%

the specific gravity of the woman $= \frac{95.08}{100 } = 0.9508$

The density of the woman is calculate as;

$Specific \ gravity \ of \ the \ woman = \frac{Density \ of \ the \ woman }{Density \ of \ fresh \ water }\\\\ Density \ of \ the \ woman = Specific \ gravity \ of \ the \ woman \ \times \ Density \ of \ fresh \ water$

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3 years ago

Calculate the wavelength of each frequency of electromagnetic radiation: a. 100.2 MHz (typical frequency for FM radio broadcasti

Natalka [10]

Answer:

a). 100.2 MHz (typical frequency for FM radio broadcasting)

The wavelength of a frequency of 100.2 Mhz is 2.99m.

b. 1070 kHz (typical frequency for AM radio broadcasting) (assume four significant figures)

The wavelength of a frequency of 1070 khz is 280.3 m.

c. 835.6 MHz (common frequency used for cell phone communication)

The wavelength of a frequency of 835.6 Mhz is 0.35m.

Explanation:

The wavelength can be determined by the following equation:

$c = \lambda \cdot \nu$ (1)

Where c is the speed of light, $\lambda$ is the wavelength and $\nu$ is the frequency.

Notice that since it is electromagnetic radiation, equation 1 can be used. Remember that light propagates in the form of an electromagnetic wave.

<em>a). 100.2 MHz (typical frequency for FM radio broadcasting)</em>

Then, $\lambda$ can be isolated from equation 1:

$\lambda = \frac{c}{\nu}$ (2)

since the value of c is $3x10^{8}m/s$ . It is necessary to express the frequency in units of hertz.

$\nu = 100.2 MHz . \frac{1x10^{6}Hz}{1MHz}$ ⇒ $100200000Hz$

But $1Hz = s^{-1}$

$\nu = 100200000s^{-1}$

Finally, equation 2 can be used:

$\lambda = \frac{3x10^{8}m/s}{100200000s^{-1}}$

$\lambda = 2.99 m$

Hence, the wavelength of a frequency of 100.2 Mhz is 2.99m.

<em>b. 1070 kHz (typical frequency for AM radio broadcasting) (assume four significant figures)</em>

$\nu = 1070kHz . \frac{1000Hz}{1kHz}$ ⇒ $1070000Hz$

But $1Hz = s^{-1}$

$\nu = 1070000s^{-1}$

Finally, equation 2 can be used:

$\lambda = \frac{3x10^{8}m/s}{1070000s^{-1}}$

$\lambda = 280.3 m$

Hence, the wavelength of a frequency of 1070 khz is 280.3 m.

<em>c. 835.6 MHz (common frequency used for cell phone communication) </em>

$\nu = 835.6MHz . \frac{1x10^{6}Hz}{1MHz}$ ⇒ $835600000Hz$

But $1Hz = s^{-1}$

$\nu = 835600000s^{-1}$

Finally, equation 2 can be used:

$\lambda = \frac{3x10^{8}m/s}{835600000s^{-1}}$

$\lambda = 0.35 m$

Hence, the wavelength of a frequency of 835.6 Mhz is 0.35m.

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3 years ago