What affects the thermal conductivity of earth materials? (Ex: Water, Soil, Sand, Air, etc.)

Answer:

an electric motor

Explanation:

electric motor contains an electromagnet that can rotate between poles of a magnet.

Answer:

what do u need help with

Explanation:

Calculate the escape velocity for the spacecraft. [G= 6.67×10^-11Nm^2kg^-2, mass of the Earth= 5.97×10^24kg, radius of the Earth= ...

Explanation:

that the people closer too the head of the table will feel more vibrations than the people at the end of the table. since the vibrations will slow down as they travel farther down the table

Hope this helps!!

The magnitude of the force that the electron will experience is 1.9 × 10⁻¹³ N.

Look at the picture, The electron at point C has a negative charge. Negative and positive charges will attract each other. The electron experience the force from

According to Coulomb's law

F = k × q₁ × q₂ ÷ r²

Look at triangle ABC

Force between AC

F₁ = k × q₁ × q₃ ÷ r₂²

F₁ = 9 × 10⁹ × 10⁻⁵ × 1.6 × 10⁻¹⁹ ÷ 0.3²

F₁ = 14.4 × 10⁻¹⁵ ÷ 0.09

F₁ = 160 × 10⁻¹⁵

F₁ = 1.6 × 10⁻¹³ N

Force between BC

F₂ = k × q₂ × q₃ ÷ r₃²

F₂ = 9 × 10⁹ × 2 × 10⁻⁵ × 1.6 × 10⁻¹⁹ ÷ 0.5²

F₂ = 28.8 × 10⁻¹⁵ ÷ 0.25

F₂ = 115.2 × 10⁻¹⁵

F₂ = 1.152 × 10⁻¹³ N

The resultant force

F² = F₁² + F₂² + 2 × F₁ × F₂ × cos θ

F² = (1.6 × 10⁻¹³)² + (1.152 × 10⁻¹³)² + (2 × 1.6 × 10⁻¹³ × 1.152 × 10⁻¹³ × 0.6)

F² = (2.56 × 10⁻²⁶) + (1.327 × 10⁻²⁶) + (2.212 × 10⁻²⁶)

F² = 6.099 × 10⁻²⁶

\(F \:=\: \sqrt{6.099 \times 10^{- 26}}\)

F = 2.46 × 10⁻¹³ N

Learn more about Coulomb's law here: https://brainly.com/question/26892767

#SPJ4

Answer:

They hold it tightly to their shoulder because the gun recoils and jumps back so by holding it to their shoulder it allows them to stablize the gun so that when it jumps in stead of the gun kicking back and flying the gun jumps and hit the shoulder.

Explanation:

Answer:helps to absorb most of the force produced by the recoil allowing the the shooter to steady his shoot and remain standing

Hope it helps

Explanation:

The answer to the question “Newton reasoned that the gravitational attraction between Earth and the moon must be...” is option (c) directly proportional to distance.

 Newton reasoned that the gravitational attraction between two objects was directly proportional to their masses and inversely proportional to the square of the distance between them.

Gravity is a fundamental force that operates between two objects with mass. The gravitational force between two objects with mass is proportional to the product of the masses and inversely proportional to the square of the distance between them.

The formula F = Gm1m2 / r^2 represents the relationship between gravitational force, masses, and distance. Here, F is the force of gravity between the objects, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.

Gravitational force, often known as gravity, is one of the four fundamental forces in the universe. It is the force that exists between two objects that have mass. The attraction that exists between any two objects with mass is determined by gravitational force. This force exists between all things in the universe, but it is generally too weak to be noticed.

To learn more on Gravitational force :

https://brainly.com/question/27943482

#SPJ11

Answer:

I think its A

Explanation:

Not 100 percent sure tho but they do go up and down in big movements.

When a rock is thrown straight upward, its initial speed is 30 m/s. As the rock moves against the force of gravity, it gradually loses its upward velocity until it reaches its highest point, known as the peak of its trajectory.

At this point, its velocity becomes zero momentarily before it starts to descend.

The key to finding the rock's speed when it returns to the original point of launch is to understand that the magnitude of its velocity at any point during the motion is determined solely by the initial velocity and the acceleration due to gravity. The acceleration due to gravity is constant and acts in the downward direction with a value of approximately 9.8 m/s².

Since the velocity decreases by 9.8 m/s every second, it will take the same amount of time to return to the original point of launch as it took to reach the highest point. This means that the time of flight is equal to the time it took for the rock to reach its peak. Using the kinematic equation:

v = u - gt,

where v is the final velocity, u is the initial velocity, g is the acceleration due to gravity, and t is the time, we can find the time it took for the rock to reach its peak:

0 = 30 - 9.8t.

Rearranging the equation, we have:

t = 30/9.8.

Plugging in the values, we find that t ≈ 3.06 seconds. Therefore, the rock will take approximately 3.06 seconds to return to the original point of launch.

To find the final velocity when it returns to the ground, we use the same kinematic equation:

v = u - gt,

where u is the initial velocity (30 m/s), g is the acceleration due to gravity (9.8 m/s²), and t is the time of flight (3.06 seconds). Plugging in the values:

v = 30 - 9.8 * 3.06,

v ≈ -8.68 m/s.

The negative sign indicates that the velocity is now in the opposite direction, pointing downward. Therefore, the speed when the rock returns to the original point of launch is approximately 8.68 m/s.

To know more about force of gravity click this link-

https://brainly.com/question/30498785

#SPJ11

Answer:

a. q = qm/√2 b. qm/√(2LC)

Explanation:

a. Charge on the capacitor

Let U₁ = energy in inductor and U₂ = energy in capacitor and U = total energy in circuit.

So, U₁ + U₂ = U.

Since the energy is shared equally between the capacitor and inductor, U₁= U₂,so

2U₂ = U

and U₂ = U/2

Now U₂ = q²/2C where q is the charge on the capacitor with capacitance C and

U = (qm)²/2C where qm is the maximum charge on the capacitor.

Since U₂ = U/2,

Substituting the values for U₂ and U, we have

q²/2C = [(qm)²/2C]/2

q² = (qm)²/2

taking square-root of both sides, we have

q = qm/√2

b. The current in the inductor

Since the energy in the capacitor equals the energy in the inductor,

1/2LI² = 1/2q²/C where L is the inductance of the inductor and I the current through it.

I² = q²/LC

taking square-root of both sides, we have

I = q/√LC

substituting the value of q from above, we have

I = qm/√2 ÷ √LC

I = qm/√(2LC)

The frequency of this sound wave is 159 hertz. Hence, correct answer is option A.

Type of mechanical wave that propagates through a medium, such as air, water, or solids, as vibrations is called sound wave and they are produced when object vibrates, creating disturbances in the surrounding medium. These disturbances cause the particles of the medium to oscillate back and forth and transmitting energy from the source of the sound to surrounding areas.

The formula to calculate the frequency of a sound wave is: frequency = speed of sound/wavelength. In this case, the speed of the sound wave is given as 342 m/s and the wavelength is given as 2.15 meters. So, the frequency can be calculated as:

frequency = 342 m/s / 2.15 meters

frequency = 159.07 hertz

Therefore, the correct answer is A. 159 hertz.

To know more about sound waves, refer

https://brainly.com/question/1199084

#SPJ11

Answer:

Explanation:

neautrons and protons

Answer:

a = 1.3 m/s2; fn = 63.1 n :)

Answer:

397 j

Explanation:

Because 5.0kg yuh

The kinetic energy of the block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s is 396.9 J.

A moving item or particle has a certain kind of power called kinetic energy. When an item exerts a net force to perform work, which involves the transfer of energy, the object accelerates and as a result, gains kinetic energy.

The amount of kinetic energy that a moving object or particle possesses is determined by both its mass and rate of motion. Any combination of vibration, axis rotation, translation (or movement along a path from one location to another), and translation are all possible motion types.

Given:

The mass of the block, m = 5 kg,

The horizontal force, F = 80 N,

The velocity of the block, v = 12.6 m / s,

Calculate the kinetic energy by the formula given below,

\(KE = 1/2mv^2\)

KE = 1 / 2 × 5 × 12.6²

KE =  1 / 2 × 5 × 158.6

KE = 396.9 J

Therefore, the kinetic energy of the block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s is 396.9 J.

To know more about Kinetic energy:

https://brainly.com/question/999862

#SPJ2

The complete question is A block with a mass of 5.0 kg is pushed on a frictionless surface by applying a horizontal force of 80.0 N. The block starts from rest, and its final velocity is 12.6 m/s. ​Find its kinetic energy?

The current at point A = 3A, The current at B = 6 A, the current at C = 2.25 A, the current at D = 18 A.

The current flowing in the circuit is calculated as follows;

Same current will be flowing at point A and C since they are in series, while different current will be flowing in the rest of the circuit.

Total resistance  is calculated as;

1/R = 1/(3 + 9) + 1/6 + 1/2

1/R = 1/12 + 1/6 + 1/2

R = 1.33

The total current in the circuit;

I = V/R

I = 36 V / 1.33

I = 27 A

Current at B = 36 / 6 = 6 A

Current at D = 36 / 2 = 18 A

Current at A and C = 27 A - (6 + 18)A = 3 A

Current at A = 3 / 12 x 3 A = 0.75 A

current at C = 9 / 12  x 3A = 2.25 A

Learn more about current in circuit here: https://brainly.com/question/18108586

#SPJ1

Answer:

The correct option is;

D. There is not enough information to answer this question

Explanation:

The universal gravitational constant = 6.67408 × 10⁻¹¹ 3³/(kg·s²)

For an in between distance of 1 m and equal masses of 60 kg, we have;

\(F = G \times \dfrac{m_{1} \times m_{2}}{r^{2}} = 6.67408 \times 10^{-11} \times \dfrac{60 \times 60}{1^{2}} \approx 2.403 \times 10^{-7} N\)

The gravitational attraction ≈ 2.403 × 10⁻⁷ N, which does not correspond with the answers, therefore, the best option is that there is not enough information to answer this question.

Answer:

Distance is 155 m and displacement is 155 m North.

Explanation:

The correct answer is: Distance is 155 m and displacement is 155 m North.

Distance is the total path length covered by an object, while displacement is the straight-line distance between the starting point and the final position of the object.

In this case, Jimmy walked 155 m due north, so his distance traveled is 155 m. His displacement, on the other hand, is also 155 m, but it is in the direction of north, because he started and ended at the same point in a straight line. Therefore, the correct option is that the distance is 155 m and the displacement is 155 m North.

Answer:

The current would be multiplied by 1/4, meaning it is reduced by 3/4 of itself.

Explanation:

This is because when the resistance increases, the current decreases along with it.

The change in sound of the train whistle from a higher pitch to a lower pitch after the train passes can be explained by the Doppler Effect.

Here is a step-by-step explanation:

1) The Doppler Effect is the change in frequency or pitch of a sound wave due to the relative motion of the sound source and the observer.

2) When the train is approaching the observer, the sound waves from the train are compressed and the frequency or pitch of the sound wave appears higher.

3) As the train passes the observer, the sound waves from the train are stretched and the frequency or pitch of the sound wave appears lower.

4) This change in frequency or pitch can be explained by the relative motion of the train and the observer.

When the train is approaching the observer, the sound waves from the train are "bunched up" and appear closer together, resulting in a higher frequency or pitch.

When the train is moving away from the observer, the sound waves are "stretched out" and appear further apart, resulting in a lower frequency or pitch.

5) The change in frequency or pitch of the train whistle can be represented by a graph showing the frequency of the sound wave over time.

Before the train passes, the frequency of the sound wave gradually increases as the train approaches the observer.

After the train passes, the frequency of the sound wave gradually decreases as the train moves away from the observer.

6) The change in frequency or pitch of the train whistle can also be calculated using the Doppler Effect equation, which relates the frequency of the sound wave, the speed of the sound wave, and the relative velocity of the train and the observer.

In summary, the change in sound of the train whistle from a higher pitch to a lower pitch after the train passes is due to the Doppler Effect, which is caused by the relative motion of the train and the observer.

The change in frequency or pitch can be represented by a graph or calculated using the Doppler Effect equation.

To know more about Doppler Effect :

https://brainly.com/question/15318474

#SPJ11

Answer: Created Fall 2016 by Ronald Wilson Inductive reasoning uses a set of specific observations to reach an overarching conclusion; it is the opposite of deductive reasoning. So, a few particular premises create a pattern which gives way to a broad idea that is likely true.

Explanation: No explanation lol. But I hope this is helpful!

At the center of a quasar is a supermassive black hole that is surrounded by a disc of gas and dust that is heated to incredibly high temperatures. This disc is the energy source of the quasar, as it emits large amounts of radiation and energy.

Over time, the energy source at the center of a quasar can diminish as the black hole consumes the surrounding material. As the material is consumed, the disc of gas and dust becomes smaller, which reduces the amount of energy that is being emitted.

This process can take millions or even billions of years, depending on the size of the black hole and the amount of material that is available. Eventually, the energy source of a quasar can completely run out, which causes the quasar to stop emitting radiation and energy.

At this point, the black hole will still exist, but it will no longer be surrounded by a disc of material that can provide energy. Instead, it will become dormant and will no longer be visible as a quasar.

To know more about black holes refer here:

https://brainly.com/question/27723143#

#SPJ11

Answer:

Energy transfer is the movement of energy from one location to another. Energy transformation is when energy changes from one type to another. While energy can be transferred or transformed, the total energy always remains the same.

Explanation:

Explanation:

It is given that,

Let Charge of \(1\ \mu C\) is taken from points A & B such that \(V_A-V_B=1000\ V\).

We need to find the energy of charge. Electric potential is defined as the work done per unit of electric charge. So,

\(W=(V_B-V_A)q\\\\W=-1000\times 10^{-6}\\\\W=E=-10^{-3}\ J\)

So, the energy of charge decreases by \(10^{-3}\ J\). Hence, the correct option  is (a).

Aluminum's density is 1.2 gm/ cm^3.

The distribution of a quantity (such as mass, electricity, or energy) per unit, kind of space; the amount per unit of length, area, or volume. the substance's mass per unit volume.

The density of an object is determined by its mass to volume ratio. Density is commonly measured in grammes per cubic centimetre (g/cm3).

The bottle weighs a total of 90g.

The bottle has a volume of 50cm3.

Total density is equal to mass times volume.

= 90/ 50

= 1.8 gm/cm3 and the mass of water is now 90 - 60 = 30 gm.

50 cm3 of space

Mass/Volume Equals Density

= 30/ 50

= 0.6 gram/cm3 Currently,

The density of aluminium is 1.8-06.

= 1.2 gm/ cm^3

Learn more about density herebrainly.com/question/20109761

SPJ1

Answer:

We observe a volcano erupting lava. We can feel the ground tremble during the eruptions. We conclude that deep under the surface of the earth there are forces that produce considerable movement resulting heat and pressure we see.

Explanation:

Got it right on the quiz

Answer:

Explanation:

3 and 4G networks, Bluetooth, and Wi-Fi technologies. my opinions

Answer:

0.2597hertz

Explanation:

first of all we have to calculate time.

time is given by speed/distance

hence=30.67/7.96

=3.85s

frequency is given by 1/time

=1/3.85

=0.2597hertz

a) 6000 Pa

b) 400 Pa

The watt (abbreviated W) is the International System of Units' (SI) standard unit of power (energy per unit time), the equivalent of one joule per second. The watt is used to specify the rate at which electrical energy is dissipated, or the rate at which electromagnetic energy is radiated, absorbed, or dissipated.

One pascal can be defined as the pressure exerted on a surface of area 1m2 by a force of 1N that acts normally on it.

in statement six thousand watt

six thousand in figure will be = 6000

since , its unit is in watt it can be written as = 6000 W

in statement four hundred pascals

four hundred in figures will be = 400

having unit pascal = Pa

which can be written as = 400 Pa

To learn more about Pressure here

https://brainly.com/question/356585

#SPJ1