Which of the following are properties of mechanical waves?
A. The particles of the medium always move parallel to the wave
motion.
B. Particles of the medium move back and forth, but do not move
with the wave.
C. Wave motion begins with a disturbance in the medium.
D. Waves transport energy from a source outward, away from the
source.

The electric potential is zero when there is no difference in electric potential energy between two points. Therefore, the value of xx between 0 and 1.00 mm where the electric potential is zero is 0.500 mm.

The electric potential at a given point is the amount of electric potential energy per unit charge at that point in space. This can be found by measuring the electric potential difference between two points, one of which is the point at which we are interested in finding the electric potential. In this case, the electric potential at any point between 0 and 1.00 mm is zero since there is no difference in electric potential energy between the two points. Therefore, the value of xx where the electric potential is zero is 0.500 mm.

The electric potential is zero when there is no difference in electric potential energy between two points. Therefore, the value of xx between 0 and 1.00 mm where the electric potential is zero is 0.500 mm.

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The gravitational force exerted on uranus by neptune can be deduced with newtons law of gravitation. The value is, 2.240×10^17 Newton.

According to newtons law of gravitation, "any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them." Now we know that gravitational force F= G (m1m2 ÷ r²). Here m1 and m2 are  the masses of uranus and neptune. r is the diostance between them. G is gravitational constant. So we know its value. it is 6.673 x 10^-11 N m²/kg². We also know the values of m1 and m2. Mass of neptune is 102.42×10^24 kg. And the mass of uranus is 86.81×10^24 kg. Now after knowing the distance between them, we get r= 1.627×10^12 meters. We have to put all the values in the formula. After doing thyat we get 2.240×10^17 N of force.

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The percentage of uncertainty in the distance of cepheids observed in galaxy 11%

Inversely related to the square of the observer-to-source distance, the intensity of light that a source emits to an observer. This demonstrates that the intensity of light grows with distance and is equal to a number multiplied by 1/d2.

The inverse square law => d = [tex]\sqrt{L/4\pi * b}[/tex]

L = luminosity

b = brightness

Cepheid 1 : d1 5.77 x 10^ 23 m

Cepheid 2: d2 5 x 10^23 m

Cepheid 3 : d3 4.78 x 10^23 m

Avaerge distance = d1 + d2+ d3/3 => 5.18 x 10^23m

Hence, the percentage of uncertainty in the distance

   => 5.77 x 10^ 23 - 5.18 x 10^23 / 5.18 x 10^23

  => 11%

As a multipurpose observatory, Hubble was created to study the universe in the visible, ultraviolet, and infrared spectrums. Over 40,000 cosmic objects have been analysed by the telescope thus far, giving scientists access to views they couldn't see from the ground.

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Answer:

horizontal distance it traveled is 45 m

the height of the building is 15 m

Explanation:

X = Vo cos 53.1 . t = 25 x 0.6 x 3

X = 45 m

Y = Vo sin 53.1  t - 1/2 g t²

Y = 25 x 0.8 x 3 - 1/2 x 10 x 9

Y = 60 - 45

Y = 15 m

Moles in gas refer to the number of molecules of a given gas present in a sample of the gas.

What does Moles in gas mean?

Moles in gas refer to the number of molecules of a given gas present in a sample of the gas. This is typically expressed as a ratio of the number of moles of the particular gas compared to the total number of moles of all gases present in the sample. For example, if a sample of air contains 20 moles of oxygen, 10 moles of nitrogen, and 10 moles of carbon dioxide, the mole fraction of oxygen in the sample would be 0.5, meaning that for every mole of gas present in the sample, half of it is oxygen.

The total work W for the cycle:

W = (Cp)(Tc-Ta) + (Cp)(Tb-Tc) +(Cv)(Tb-Ta)

W = (29.1 J/mol K)(492K-300K) + (29.1 J/mol K)(600K-492K) + (20.8 J/mol

K)(600K-300K)

W = 84460 J

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molar heat capacity=2R is the correct answer .

What is molar heat capacity ?

Molar heat capacity is expressed in units of J/K/mol or J/mol·K. where J is Joules, K is Kelvin, and m is moles. This value assumes no phase change occurs. We usually start with molar mass values ​​in kg/mol. A less common unit of heat is the kilogram calorie (cal) or its cgs variant the gram calorie (cal). You can also express heat capacity in pound-mass at temperatures in Rankine or degrees Fahrenheit. Molar heat capacity reflects heat capacity per mole, while the related term specific heat capacity is heat capacity per unit mass. Specific heat capacity is also called simply specific heat. Engineering calculations sometimes use volumetric heat capacity rather than mass-based specific heat.

Since this is a  2-D lattice, an atom can only oscillate in 2 independent directions. So the degree of freedom=2. So system cn be considered as 2*N harmonic oscillators. Where N-number of Carbon atoms

Also, each harmonic oscillator has a energy of kBT;  where kB-boltzmann constant and T-temperature

So, Total internal energy(E)= 2N*kBT

But, N*kB=n*R ; where n-moles

E=2nRT;

molar heat capacity(constant volume)= (dE/dT)/n ;

molar heat capacity=2R

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The unit vector to express a displacement of 120 km at 29° counterclockwise from x- axis is 104.9544kmi + 58.17715kmjl

A = Aχ × i + Aу × j

= 120km × cos (29) × i + 120km × sin (29) × j

let i, j be the unit ve cot s along x and y axis

Vector A = 104.9544kmi + 58.17715kmjl

The displacement vector d from P1 to P2 can be written as d = (x2 - x1)i + (y2 - y1)j. The displacement d is (x2-x1) units in the x direction and (y2-y1) units in the y direction.

These unit vectors are commonly used to indicate direction, and scalar coefficients indicate magnitude. A vector decomposition can be written as a sum of unit vectors and scalar coefficients.

A unit vector is a vector whose magnitude is exactly one unit. They are very useful for many reasons. In particular, the unit vectors [0,1] and [1,0] can be taken together to form other vectors.

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Inductance is a measure of a component or circuit's ability to store electrical energy in the form of a magnetic field when an electric current is flowing through it.

What is  Inductance?

Inductance is a property of a circuit or electronic component that opposes changes in current, producing a voltage in the circuit proportional to the rate at which the current is changing. This voltage is known as an inductive reactance, and is related to the frequency of the current. Inductance is a fundamental property of materials, and is the basis of many electrical components, including transformers, chokes, and inductors. Inductance is also responsible for the generation of electromagnetic fields, which are used in many applications, such as motors and generators.

The equation for the period of an LC oscillator is:

T = 2π √(L x C)

Thus,

2.4 = 2π √(L x 18 x 10^-3)

L = 6.8 x 10^-3 H = 6.8 mH

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Answer:

Explanation:

To construct a graph of force due to gravity vs. distance, we need to collect data for force due to gravity (Fg) and distance (d) and plot the data points on a graph. From the information given, we have the mass of the object (1.23 kg) and the angle of the incline (35º), but we do not have any data for force due to gravity or distance. Without this data, it is not possible to construct a graph for force due to gravity vs. distance.

Since we don't have the data for force due to gravity or distance, it's not possible to calculate the work done by gravity using the data table.

Without the data for force due to gravity, distance, or time it's not possible to construct a free-body diagram or calculate work done by gravity. Also, we don't have the angle of the incline, so we cannot calculate the work done by gravity by multiplying it by the cosine of the angle.

It's important to note that work done by gravity (W) = force due to gravity (Fg) x distance (d) x cos(theta), where theta is the angle between the force of gravity and the distance.

It's also important to remember that work is a scalar quantity and not a vector, and it's the angle between the force and the displacement that is important to calculate the work done by gravity, not the angle of the incline.

Answer:

bro is that even an answer is tis a prank!!

Explanation:

Saturn's core is too deep for impactors to reach, even for dense gas and metallic hydrogen with volcanic lavas

At its center, Saturn has a dense core of metals such as iron and nickel, surrounded by rocks and other compounds that are solidified by intense pressure and heat. Similar to Jupiter's core, but surrounded by liquid metallic hydrogen with a much smaller layer of liquid hydrogen. Researchers have concluded that the planet's core is 55 times the mass of Earth, while rock and ice are 17 times the mass of Earth. Temperatures up to 21,000 F (11,700 C) can be reached inside. Because Saturn is an average of 886 million miles (1.4 billion kilometers) from the Sun, most of Saturn's heat comes from its core.

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A. 40 cm

We can use Coulomb's law to calculate the distance between the two Cheetos:

F = k * (q1 * q2) / r^2

where F is the force acting on the first Cheeto, q1 and q2 are the charges on each Cheeto, k is the Coulomb constant and r is the distance between the two Cheetos.

Given that the force acting on the first Cheeto is 5.73 E−1 N, the charge on the first Cheeto is 1.2 E−5 C, the charge on the second Cheeto is 2.5 E−6 C and the Coulomb constant is 8.99 E9 N*m2/C2.

We can rearrange the equation to solve for the distance r:

r = (k * q1 * q2 / F)^(1/2)

r = (8.99 E9 N*m2/C2 * 1.2 E−5 C * 2.5 E−6 C / 5.73 E−1 N)^(1/2)

r = 0.04 m

So the distance between the two Cheetos is 40 cm.

Point charges +4.3 µC and -2.2 µC are placed on the x-axis at (10 m, 0) and (-10 m, 0) . Point to the left of the negative charge where the electric potential vanishes is at x = 6.77 m

Charge [tex]Q_{1[/tex] (4.3μC) is places at x=10 m and charge [tex]Q_{2}[/tex] (-2.2μC) is placed at x=-10 m . Let at point A the electric potential vanishes and it is at a distance a to left from charge [tex]Q_{2}[/tex] Formula for potential due to point charge at a distance r from it is  [tex]\frac{KQ}{r}[/tex].

As potential at point A is 0 . So net potential due to all the charges will be 0

Distance of point A from point B is 20+a

Potential at A  is

[tex]-\frac{KQ_{2} }{a}[/tex] + [tex]\frac{KQ_{1} }{20+a}[/tex]  =0  

[tex]\frac{Q_{2}}{a}= \frac{Q_{1}}{20+a}[/tex]  

[tex]20Q_{2}+aQ_{2}=aQ_{1} \\\\a(Q_{1}-Q_{2})=20Q_{2}\\\\a=\frac{20Q_{2}}{Q_{1}-Q_{2}}[/tex]

Putting values of  [tex]Q_{1}[/tex] and [tex]Q_{2}[/tex] we get

[tex]\frac{20*(2.2)}{4.3+2.2}\\ \\=\frac{44}{6.5} \\\\= 6.77[/tex]m  

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The golf ball has the greater kinetic energy because it has more mass than the baseball.

What is  kinetic energy ?

Kinetic energy is the energy of motion.  Kinetic energy is directly proportional to the mass of the object and to the square of its velocity. The total kinetic energy of an object is the sum of all the kinetic energies of its component parts. Kinetic energy is a scalar quantity, meaning it is described by a single scalar value. Kinetic energy is the energy of a body in motion. It is determined by the mass of the body and its velocity. It is measured in joules (J).  It can be applied to a variety of objects, from a bowling ball to a wave. Kinetic energy is used in many everyday applications. It is used in the operation of machinery, such as in an automobile engine, where the kinetic energy of the moving parts is converted into mechanical energy.

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The value of gOP7 in the units architects will use, in metersecond2 is calculated as 5.72 m/s^2.

Omicron Persei is triple star system in the constellation of Perseus. From parallax measurements that was taken during the Hipparcos mission, it is approximately 1,100 light-years (330 parsecs) from Sun.

We have available 2 conversion units.

5.24 flurg/m and 0.493 s/grom

I chose units to describe two conversions by making denominator equal to 1 in both cases, hence there are 5.24 flurgs per meter and 0.493 seconds per grom.

Now, it is given 7.29 flurg/grom^2 and we have to convert to m/s^2.

So, flurg/grom^2 / flurg/m

= flurg/grom^2 * m/flurg

= (m*flurg)/(grom^2 * flurg)

= m/grom^2

Now, 7.29 flurg/grom^2 / 5.24 flurg/m = 1.391221374 m/grom^2

Now, to convert from m/grom^2 to m/(s grom) using time conversion factor.

m/grom^2 / s/grom

= m/grom^2 * grom/s

= (m*grom)/(grom^2 * s)

= m/(grom * s)

As, 1.391221374 m/grom^2 / 0.493 s/grom

= 2.821950049 m/(grom s)

Similarly, 2.821950049 m/(grom s) / 0.493 s/grom

= 5.72403661 m/s^2

So, the value of gOP7 in metersecond2 = 5.72 m/s^2

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Answer:

Explanation:

yes

According to the question of circuit, the value of resistor R will be 10 Ω.

What is circuit?
Circuit is an electrical network consisting of connected components that allow electrical signals or power to pass through it. The components are usually connected by conductors such as wires, cables, or printed circuit boards. Circuits can be simple and consist of only a few components, or extremely complex containing thousands of components. Circuits can be used to control machines, computers, household appliances, and more. They are used in almost every area of electronics and electrical engineering, from the communication signals in a cellphone to the power distribution in a skyscraper.

R is calculated by Ohm's law, which states that the voltage (V) across a resistor is equal to the current (I) multiplied by the resistance (R). Therefore, R = V/I = 6V/0.86A = 10 Ω.

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As a result, from the homes of the shoppers to the restaurant, the distance is 12 km, and the direction is 80° north.

As the name implies, questions based on direction and/or distance are also known as Direction and Distance questions. Candidates must calculate the distance traveled between the starting location and the final / end point based on the provided starting point and direction. The position of one point and person with regard to another point and person and the distance among them must be determined for the Direction & Distance reasoning part.

Declare the terms "right" and "left." Ask the kids to tell you what these terms imply or mean when they are translated, then write their answers on the board with arrows pointing in the appropriate directions. Show the class how to pronounce the words once their meanings are obvious. Relative terminology, such as up, down, in, out, left, right, forward, backward, or sideways, can be used to define direction. You can also depict direction using the four cardinal directions: north, south, east, & west.

7km = 30 Degree of NE

5km = 50 degree of N

Therefore distance = 7km+5km

=12km

thus, direction = 50+30

=80° N

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255.102 m is minimum radius of the circle be in order for the acceleration at this point not to exceed 4.00g

What is acceleration ?

Acceleration is defined as the rate of change of velocity over time for both velocity and direction. A point or object which is moving in a straight line accelerates as it accelerates or decelerates. Circumferential motion is accelerated as it always changes direction even at constant velocity. For all other exercise types both effects contribute to acceleration.

It is a vector quantity because it has magnitude and direction and velocity is also a vector quantity.

We are given that

Mass =m=56 kg

a. Speed , v=100 m/s

We have to find the minimum radius of the circle for the acceleration at this point not to exceed 4 g.

We know that ,

Radial acceleration, a= V^{2} /R

Therefore , R= 100 * 100/4g

Using the formula

We know that g=9.8 m /s^{2},

we get , R = 255.102 m

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a)The radius is 2.6 cm and b) The mass is measured to 4.76 g/cm³ and c)0.00476 kg/m³  is the density kg/m³ in kg/m³.

The quantity of matter per unit volume is referred to as densities (volumetric mass density or specific mass). Density is most frequently represented by the lowercase Greek letter rho, but the Latin letter D is also acceptable. Density is calculated mathematically by dividing mass by volume.

a. The formula: gives the surface area of a spherical.

A = 4 * pi * r²

where A is the surface area, pi is approximately 3.14, and r is the radius of the sphere.

Given the surface area A = 85 cm², we can write the equation for the radius as:

85 = 4 * pi * r²

Solving for r, we get:

r = sqrt(85 / (4 * pi)) = sqrt(85 / 12.56) = sqrt(6.77) = 2.6 cm (approx)

b. The density of an object is given by the formula:

density = mass / volume

The following formula determines a sphere's volume:

V = (4/3) * pi * r³

where V is the volume and r is the radius of the sphere.

Given the mass of the ball M = 160 g, we can calculate the density as:

density = mass / volume = 160 g / [(4/3) * pi * (2.6 cm)^3] = 160 g / (33.51 cm^3) = 4.76 g/cm³

c. To convert the density from g/cm³ to kg/m³, we need to divide the value by 10³.

density = 4.76 g/cm³ / (10³) = 0.00476 kg/m³

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Answer:

After the inelastic collision, the velocity of the 8 kg mass would be the same as the center of mass velocity. Which is the velocity of the combined system of both masses. To find the velocity of the center of mass, we can use the following formula:

vcm = (m1v1 + m2v2) / (m1+m2)

where m1 = 8kg, v1 = 9.6 m/s east, m2 = 6kg, v2 = 14.8 m/s west

vcm = (89.6 + 6(-14.8)) / (8 + 6) = -0.8 m/s (west)

Therefore, after the inelastic collision, the velocity of the 8 kg mass would be -0.8 m/s (west)

Given a position vector →v=⟨a,b⟩,the magnitude is found by |v|=√a2+b2.

The components of a vector, which is symbolized by an arrow, are a magnitude (the size of a measurement) and a direction (the direction the arrow is pointing), for example, 2 meters south. A solitary vector is a vector that exists by itself. A resultant vector is produced by adding two or more single vectors.

A combined force that is smaller than either individual force is created when two forces engage in opposition to one another. Subtract the magnitude of the smaller force from the magnitude of the bigger force to determine the resultant force. The smaller force and the resultant force both have the same direction.

|A| stands for the magnitude of a vector A, which represents its length. It is the sum of the squares of the vector's component parts' square roots.

A two-dimensional vector's magnitude can be calculated from its coordinates by:

How to Find Magnitude of a Vector?

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The nuclei are observed to decay by emitting a β− particle releases a positively charged beta particle called a positron, and a neutrino.

The mechanism of contact between subatomic particles that causes the radioactive disintegration of atoms is known as the weak interaction, also known as the weak force or weak nuclear force, in nuclear physics and particle physics.

The three most frequent types of decay are beta decay, gamma decay, and alpha decay, all of which entail the emission of one or more particles. While the nuclear force and electromagnetism are in charge of the other two, the weak force is the process that causes beta decay.

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Working at 27 MHz is referred to as high-frequency (HF), and you won't be focusing it or employing horns or waveguides.

The antenna is most likely a dipole or monopole on the ground, and the wavelength is approximately 10 m. A radio carrier frequency utilized for radio control current operations is 27 MHz. The abbreviation "MHz" stands for megahertz, or one million cycles per second. Furthermore, the minimum wavelength will be 3 x 10 to 8 meters / 108 megahertz. Therefore, the FM wavelength will fall between 2.78 meters and 3.41 meters. Working at 27 MHz is referred to as high frequency (HF), and you won't be focusing it or employing horns or waveguides.

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The coefficient of static friction on a horizontal surface is found to be 0.83.

The ratio between the perpendicular force pushing the objects together and the resistive frictional force is known as the coefficient of friction. The formula for the friction coefficient is = F N. Depending on the items creating friction, the coefficient of friction changes. The value might be larger than 1 but is often between 0 and 1.

Force (f)= 65N ;  Mass (m) = 8Kg ; Acceleration due to gravity (g) =  9.8 m/s²  

μ = Coefficient of static friction.

Static friction force, f = μmg

μ = f/mg ;

  => 65/(8 x 9.8) = 0.83

The nature and roughness of the surfaces in contact affect the coefficient of static frictional force. It does not depend on the size or surface area of the surfaces. The value might be larger than 1 but is often between 0 and 1.

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According to the given statement So, the volume occupied by 55.85 g of iron is 7.12 cm³.

The quantity of matter per unit volume is referred to as dense (volumetric mass density or specific mass). Density is most frequently represented by the lowercase Greek letter rho, but the Latin letter D is also acceptable.

The density of matter varies with temperature and pressure. This variation is typically small for solids and liquids and much larger for gases. Increasing the pressure on an object decreases the volume of the object, thus increasing its density. Increasing the temperature of a substance.

The following formula determines an object's density:

density = mass / volume

Given that the density of iron is 7.86 g/cm³ and the mass of the iron is 55.85 g, we can calculate the volume occupied by the iron as:

volume = mass / density = 55.85 g / 7.86 g/cm³ = 7.12 cm³

So, the volume occupied by 55.85 g of iron is 7.12 cm³.

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7.58 ohms , 22.39 A and 3800 W are the correct answers .

What is resistance ?

Resistance is measured in ohms and represented by the Greek letter omega (Ω). Ohm is named after German physicist Georg Simon Ohm (1784-1854), who studied the relationship between voltage, current and resistance. He has been credited with formulating Ohm's law.

All substances resist the flow of electricity to some degree. They fall into one of two broad categories:

conductor: A material that offers very little resistance through which electrons can easily move. example:

silver, copper, gold, aluminium.

Insulator:

A substance that has a high resistance and restricts the flow of electrons. example:

Rubber, paper, glass, wood, plastic.

a) R= V^2/P = 120*120/1900 = 7.58 ohms

b) P= IV

I=1900/120 = 15.83A

I peak = sqrt2*15.83= 22.39 A

c) average power= 2*average power = 2*1900= 3800 W

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Part A Rank in order, from largest to smallest, their wave speeds va, Ub, and U is Va = Vb = Vc.

What is wave ?

An energy-conducting disturbance in a medium known as a wave is one that does not involve any net particle motion. It could manifest as elasto-deformation, a shift in pressure, electric or magnetic intensity, electric potential, or temperature.

What is speed ?

A shift in an object's location, either in direction or speed. How fast something is travelling is determined by how far it has travelled in relation to how long it took. Speed is considered a scalar quantity because it only has a direction and no magnitude.

Wave velocity depends on the tension in the string and mass per unit length of the string.

As these two variables will remain same for all the 3 strings so they will have equal velocities.

Va = Vb = Vc

Therefore, Part A Rank in order, from largest to smallest, their wave speeds va, Ub, and U is Va = Vb = Vc.

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The kinetic energy of the products of the decay depends on the masses of the products and their velocities.

Velocity is a vector quantity that measures the rate and direction of an object's movement. It is expressed in meters per second and is typically calculated with the formula distance divided by time. Knowing an object's velocity is useful for determining its speed, acceleration, and the total distance it has traveled. Velocity is one of the fundamental concepts in physics, which is why it is important to understand when studying the science.

If we assume that the decay occurs at rest, then the difference in the mass of the products and the parent nuclei is converted into kinetic energy. In this case, the mass difference is 0.06.

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You would need to survive the thermosphere: The temperature ( 2000° C or more), the cosmic radiation and even solar activities, low air pressure and low air molecule.

Between the mesosphere and the exosphere is the thermosphere. The word "thermo" refers to heat, and the layer's temperature can rise as high as 4,500 degrees Fahrenheit.

However, because there aren't enough gas molecules for you to get the heat from the thermosphere, hanging out there would make you exceedingly cold. Additionally, this indicates that there aren't enough molecules for sound waves to pass through.

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