sound is detected when a sound wave causes the eardrum to vibrate. typically, the eardrum has a diameter of 8.4mm in humans. how much energy is delivered to the eardrum each second when someone whispers(20db) in your ear?

Answer:

The average speed is 50 miles per hour

Explanation:

Speed is equals to distance divided by time

Then substitute your variables into the equation

Hope this helps

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Answer:

330 v

Explanation:

V=IR

V=22×15=330

Answer:

\(\huge\boxed{\sf V = 330\ V}\)

Explanation:

Resistance = R = 22 Ω

Current = I = 15 A

Voltage = V = ?

V = IR (Ohm's Law)

Put the given data in the above formula.

V = (15)(22)

V = 330 V

It should have a maximum voltage of 330 V to avoid burning out.

\(\rule[225]{225}{2}\)

From the given options let's select the example which shows a conceptual model.

A conceptual model can be said to be a model which shows an abstract representation of any concept which can be visualized or imagined than other models.

It is a model which the designers want users to understand.

From the list, the best option which is an example of a conceptual model is a mental image of gas molecules as tiny balls.

Let's say, for example, you imagine or have a mental picture of gas molecules using your imagination, it helps to understand how a vacuum system works and you can easily solve the problem if something goes wrong.

Therefore, the example of a conceptual model is:

A mental image of gas molecules as tiny balls.

• ANSWER:

A. mental image of gas molecules as tiny balls

The distance Δx between the points where the ions strike the detector is 0.0971 meters. In a mass spectrometer, ions are accelerated by a potential difference and then move in a circular path due to the presence of a magnetic field.

To solve this problem, we can use the equation for the radius of the circular path:

r = (m*v) / (|q| * B)

where m is the mass of the ion, v is its velocity, |q| is the magnitude of the charge, and B is the magnetic field strength. Since the ions are accelerated from rest, we can use the equation for the kinetic energy to find their velocity:

KE = q * V

where KE is the kinetic energy, q is the charge, and V is the potential difference.

Once we have the radius, we can calculate the distance Δx between the two points where the ions strike the detector. Since the ions follow circular paths with the same radius, the distance between the two points is equal to the circumference of the circle, which is given by:

Δx = 2 * π * r

By substituting the given values into the equations and performing the calculations, we find that Δx is approximately 0.0971 meters.

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The depth of that point within the fluid, the pressure at the fluid's surface, the density of the fluid, and the weight of the fluid directly above that point.

Fluid is a state of matter that is characterized by its ability to move and take on the shape of its container. Fluids are composed of particles that are free to move about, and can also exist as a gas or a liquid. Fluids are an important part of everyday life, with applications ranging from transportation of goods to the operation of complex machinery. Fluids are also used to study the behavior of particles in motion, as well as to understand the properties of matter in general.

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Answer:

69

Explanation:

The system is open, because there is a net force exerted on the block.

An individual strolling, a taking off baseball, a piece tumbling from a table and a charged molecule in an electric field are instances of dynamic energy at work. An item that isn't moving has zero motor energy.

The energy an item has as a result of motion is known as kinetic energy. A force must be applied to an item in order to accelerate it. We must put forth effort in order to apply a force. After the job is finished, energy is transferred to the item, which then moves at a new, constant speed.

According to question:

On graphing free body diagram of the problem

There is a force = mgsin(37°)

So, the it is a open system.

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Answer:

190v I believe

hope this helped a little and if it did pls mark brainiest :)

Answer:

The distance between the 2 centers of the object.

Explanation:

If it's harder to win a super bowl for the rams than the gravity means the chiefs will win it.

The work required to move an object at constant speed along the floor against a friction force can be calculated using the formula:
Work = Force x Distance
In this case, the force is the friction force acting against the object, which is 210 N, and the distance is the distance the object is moved, which is 5.0 m.
Therefore, the work required to move the object at constant speed along the floor against the friction force of 210 N is:
Work = 210 N x 5.0 m = 1050 J (Joules)
The work required is 1050 Joules.
To calculate the work required, we need to multiply the force acting against the object by the distance the object is moved. In this case, the friction force acting against the object is given as 210 N, and the distance the object is moved is 5.0 m.

So, using the formula Work = Force x Distance, we can substitute the values to find the work required.

Multiplying 210 N by 5.0 m gives us a result of 1050 J (Joules).

Therefore, the work required to move the object at a constant speed along the floor against the friction force of 210 N is 1050 Joules.

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Answer:

nah bro tesla

Explanation:

Answer:

L

Explanation:

Answer:

A. Endurance is important for participating in sports because it provides the energy needed to maintain physical activity for long periods of time.

Endurance allows an individual to sustain prolonged physical activity by delivering oxygen and nutrients to the muscles, which helps to delay fatigue and improve overall performance. Endurance training can improve cardiovascular health, increase muscular endurance, and enhance overall physical fitness, making it an essential component of sports performance. Short spurts of energy (C) are more related to anaerobic activities and do not rely on endurance, while option B is incorrect as it contradicts the importance of endurance, and option D is a partial truth but not the most comprehensive answer.

The amount of gravitational force that acts on a space vehicle while in earth orbit is almost zero but not absolute zero.

There is no ground force or opposing natural force to gravity.

Because the earth is not a perfect sphere, the value of "g" is lowest at the equator. At the equator, its radius is at its largest. Thus, the equator is the location where g will be smallest according to the equation

g = GM/R2.

All items in the planet's gravitational field will be lost in space if gravity abruptly vanishes. We would experience levity. Essentially, if gravity is equal to zero, then there will be no acceleration caused by gravity.

Astronauts can float within their spaceship or outside during a spacewalk in microgravity. Moving heavy stuff is simple. Astronauts, for instance, can merely use their fingertips to manipulate machinery weighing hundreds of pounds.

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The focus of the examination is the property of shape known as "flatness" or "planarity."

In this scenario, the students are examining features of objects in the room, specifically the opposite sides of a book, the top and bottom of a chalkboard, and the edge of the wall that touches the edge of the floor. These observations indicate that the students are focusing on the property of shape known as "flatness" or "planarity."

"Flatness" refers to the characteristic of an object or surface that lacks curvature or unevenness. It implies that the object or surface can be described as a flat plane with two dimensions, such as a sheet of paper or a tabletop.

In the case of the objects mentioned by the students, they are examining the sides of the book, the top and bottom surfaces of the chalkboard, and the edge of the wall that meets the floor. These features are typically flat and demonstrate the property of planarity.

By examining these flat surfaces and their characteristics, the students can understand and differentiate the objects based on their shape and planar properties. This analysis allows them to recognize and classify objects based on their flatness or planarity.

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The case of ethyl alcohol and carbon tetrachloride, the ratio vct/vea is 1.225, indicating that the speed of light is faster in ethyl alcohol than in carbon tetrachloride.

The ratio vct/vea of the speeds of light when it passes through ethyl alcohol and carbon tetrachloride can be calculated using the formula v = c/n, where c is the speed of light in a vacuum and n is the refractive index of the material.

Therefore, vct/vea = n(ea)/n(ct) = 1.531/1.249 = 1.225.

This means that the speed of light is about 1.225 times faster in ethyl alcohol than in carbon tetrachloride.

The ratio vct/vea of the speeds of light passing through ethyl alcohol and carbon tetrachloride can be calculated using the formula v = c/n, where c is the speed of light in a vacuum and n is the refractive index of the material. The speed of light in carbon tetrachloride is slower than in ethyl alcohol due to its higher refractive index. Thus, the ratio vct/vea is 1.531/1.249 = 1.225, which means that the speed of light is about 1.225 times faster in ethyl alcohol than in carbon tetrachloride.

The speed of light changes when it passes through different materials with varying refractive indices. In the case of ethyl alcohol and carbon tetrachloride, the ratio vct/vea is 1.225, indicating that the speed of light is faster in ethyl alcohol than in carbon tetrachloride.

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Add varying numbers of weights to M1 and measure the speed of the car.

Add varying numbers of weights to M2 and measure the speed of the cart.

In order to test the changing amount of force that is acting on the object has effect on the average speed of the object we have to change the amount of weight on the object and allows it to move to a certain point in this way we can check the effect of changing amount of weight on the speed of the object.

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Shawn's kinetic energy will be approximately 16.65J.

Kinetic energy is the energy of motion. An object having some speed and mass will have kinetic energy while an object at rest will not have any kinetic energy since the speed of object at rest is zero.

Since at rest speed is zero. an object has kinetic energy only when it is in motion.

The formula for kinetic energy is given as

K.E = (1/2)mv²

where m = mass of object

v = speed of object.

Given;

mass = 44.4kg

distance = 0.53km

time = 11.8 mins

g = 9.8m/s2

Converting variables

0.53 km x 1000 m= 530m

11.8 mins x 60 seconds = 708 seconds

Finding the velocity;

Velocity = d/t

Velocity = 530/708

Velocity = 0.75m/s2

Finding the kinetic energy;

KE = (1/2)mv²

KE = (1/2) x 44.4 x 0.75

KE = 16.65J

In conclusion, while in motion, Shawn's kinetic energy is 16.65J.

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Answer:

Explanation:

a) The total distance travelled by Mary will be addition of the distances travelled in all directions.

Total distance travelled = 1 mile + 2.5 mile + 1.5miles + 0.75 miles

Total distance travelled = 5.75 miles

Hence the total distance traveled by Mary in her entire journey is 5.75 miles

b) Displacement is the total distance travelled in a specified direction. The displacement = 2.5 miles + (1.5- 0.75) miles = 3.25 miles

c) Speed is the change in distance with respect to time.

Speed = distance/time

Speed = 5.75/30

Speed = 0.193mi/hr

d) Average velocity is the change in displacement  with respect to time.

Velocity = displacement/time

Velocity = 3.750/30

Velocity = 0.125mi/hr

The velocity of the third piece is mathematically given as

v=0.88m/s

Generally, the equation for conservation is  mathematically given as

\(m u=m_{1} v_{1 \mathrm{x}}+m_{2} v_{2 \mathrm{x}}+m_{1} v_{x}\)

Here, is the mass of the grenade, \(m_{1}, m_{2}, m_{3}\) the masses of the pieces after an explosion, and \(v_{1 \mathrm{x}}, v_{2 \mathrm{x}}\) are velocities of the first and second pieces after the explosion.

\(m u_{1} &=m_{1} v_{1 x}+m_{2} v_{2 \mathrm{x}}+m_{3} v_{x} \\0 &=0+(0.2 \mathrm{~kg})((5 \mathrm{~m} / \mathrm{s})\\v_{x} &=\frac{-0.173 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s}}{0.3 \mathrm{~kg}} \\&=-0.578 \mathrm{~m} / \mathrm{s}\)

the equation for conservation

\(m u=m_{1} v_{1 y}+m_{2} v_{2 y}+m_{3} v_{y}\)

\(m u_{1} &=m_{1} v_{1 \mathrm{y}}+m_{2} v_{x y}+m_{3} v_{y} \\0 &=(0.10 \mathrm{~kg})(10 \mathrm{~m} / \mathrm{s})+(0.2 \mathrm{~kg})\left((5 \mathrm{~m} / \mathrm{s}) \cos 10^{\circ}\right)+(0.3 \mathrm{~kg}) v_{y} \\v_{y} &=\frac{-1.98 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s}}{0.3 \mathrm{~kg}} \\&=-0.661 \mathrm{~m} / \mathrm{s}\)

In conclusion, the magnitude of the velocity

\(v=\sqrt{v_{\mathrm{x}}^{2}+v_{\mathrm{y}}^{2}}\)

\(Substitute $-0.578 \mathrm{~m} / \mathrm{s}$ for $v_{\mathrm{s}}$ and $-0.661 \mathrm{~m} / \mathrm{s}$ for $v_{\mathrm{y}}$\)

\(v &=\sqrt{v_{x}^{2}+v_{y}^{2}} \\&=\sqrt{(-0.578 \mathrm{~m} / \mathrm{s})^{2}+(-0.661 \mathrm{~m} / \mathrm{s})^{2}} \\&=0.88 \mathrm{~m} / \mathrm{s}\)

v=0.88m/s

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La fórmula: P = W/t  ó  W = P x t. donde:

P = potencia

W = trabajo

t = tiempo

Otra fórmula de potencia es: P= I x V

Proceso de carga de un capacitor - condensador

Una fórmula muy importante que también hay que tener en cuenta es: V = q/C que indica que el voltaje es proporcional a la carga que hay en un condensador.

De la fórmula de potencia P= I x V y considerando que la corriente es constante (corriente continua), entonces la potencia es proporcional al voltaje.  Si el voltaje aumenta en forma lineal, la potencia aumentará igual. Ver el siguiente diagrama.

Como la potencia varía en función del tiempo, no se puede aplicar la fórmula W = P x t, para calcular la energía transferida. Pero observando el gráfico, se ve que esta energía se puede determinar midiendo el área bajo la curva de la figura.

Energía Almacenada en un Condensador - Capacitor

El área bajo la curva es igual a la mitad de la potencia en el momento “t”, multiplicada por “t”.

Entonces: W = (P x t) / 2. Pero se sabe que P = V x I. Si se reemplaza esta última fórmula en la anterior se obtiene: W = (V x I x t) / 2, y como I x t = CV = Q, entonces para saber cuanta energía (W) hay en un condensador usamos una de las siguientes fórmulas:

W = (CV2/2) julios

W = (QV/2) julios

W  = (Q2/2C) julios

, donde:

W = Trabajo (Energía) en julios

C = Capacidad en faradios

V = voltaje en voltios en los extremos del condensador

Q = carga del condensador

Answer with the given explanations below: First the given formula that looks like this is: or where:

P = power

W = work

t = time

Next with another given power formula that looks like this is:

This is the charging process of a capacitor - capacitor #1.

Then it's a very important given formula that it must also be taken into account is: which it was indicated that the voltage is proportional to the charge on a capacitor.

In the following below, from the given power formula that looks like this is: and we are considering that the current is the constant (direct current), and then the power is proportional to the voltage. If the voltage increases linearly, the power will increase the same. See the following diagram. (I'm sorry, Yhungbabe, I don't have the diagram to show you in order to refer to the total energy stored in the capacitor because I havenèt learned the energy stored in the capacitor)

Anyway, since the power varies as a function of the time, the given formula that looks like this is: cannot be applied to calculate the energy transferred. But looking at the graph, it seems that this energy can also be determined by measuring the area under the curve of the figure.

This is The Energy Stored in a Capacitor - Capacitor #2.

The area under the curve is equal to the half of the power at time "t", being multiplied by "t".

Then with the given formula below that looks like this is:

But it's known that If this is the last given formula is being replaced in the previous one, we obtain the new given formula that looks like this is: and as another new given formula that looks like this is: there's so to find out how much energy (W) that there's in a capacitor that we use in one of the new given formulas that looks like in the listed below are:

joules

joules

joules  

Now finally where:

W = Work (In The Energy) in Joules

C = Capacity in the farads

V = voltage in the volts at the ends of the capacitor

Q = a capacitor charge

I apologize for the late answer and the replies, so anyway, I use the online language translator in order to translate Spanish to English for you in order to understand my work given below, so, I hope my answer with the given explanation below here is very helpful to your own question about how to calculate the total energy stored in the capacitor with the image has been provided, please mark me as Brainliest and have a great rest of the day! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

The required force is calculated to be 0.5 N, work is 10 J and power is 0.074 Watt.

The mass of the book is given as 1 kg.

The acceleration of the book is given as 0.5 m/s².

The distance moved by the book is given as 20 m.

The time taken to move the book is given as 2 1/4 minutes = 9/4 minutes.

The force applied on the book is given as,

F = m a = 1 × 0.5 = 0.5 N

where,

F is force

m is mass

a is acceleration

The expression for work is known to be,

W = F . s = 0.5 × 20 = 10 J

where,

W is work

s is distance

The relation for power is known to be,

P = W/t = 10/(9/4 × 60) = 0.074 Watt

where,

P is power

t is time

Thus, the force is 0.5 N, work is 10 J and power is 0.074 Watt.

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In conclusion, the spring constant can be determined by dividing the force applied by the displacement. The spring constant measures the stiffness of the spring and determines the amount of force needed to stretch or compress it.

Based on the given information, we have a light spring that obeys Hooke's law. This law states that the force exerted by a spring is directly proportional to the displacement of the spring from its equilibrium position.
In this case, the spring stretches 3.24 cm when a 2.70 kg object is suspended from it. To determine the following, we can use Hooke's law and the equation:
F = k * x
where F is the force applied, k is the spring constant, and x is the displacement of the spring.
To find the spring constant, we rearrange the equation as:
k = F / x
Given that the force applied is the weight of the object, which is equal to mass times acceleration due to gravity, we can calculate it as:
F = m * g
where m is the mass of the object and g is the acceleration due to gravity (approximately 9.8 m/s^2).
Plugging in the values, we have:
F = 2.70 kg * 9.8 m/s^2
Next, we need to convert the displacement from centimeters to meters:
x = 3.24 cm * (1 m / 100 cm)
Now, we can calculate the spring constant:
k = (2.70 kg * 9.8 m/s^2) / (3.24 cm * (1 m / 100 cm))
Simplifying this expression will give us the value of the spring constant, which will be in units of N/m.
To summarize, we have a light spring that stretches 3.24 cm when a 2.70 kg object is suspended from it. To determine the spring constant, we used Hooke's law and calculated the force applied by the object's weight. We then converted the displacement from centimeters to meters and finally calculated the spring constant using the equation k = F / x.
In conclusion, the spring constant can be determined by dividing the force applied by the displacement. The spring constant measures the stiffness of the spring and determines the amount of force needed to stretch or compress it.

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Answer:

The silk has become negatively charged

The internal normal force at point CC is 200.04 N.

Length of beam is 8 meters

Internal normal force at point CC

Impose equilibrium equations; the sum of forces acting in the vertical direction must be zero. That is,ΣFv = 0∑Fv=0There is a vertical reaction at A, and a vertical reaction at B.

Let us assume that both are upward. At the mid-span, there is a downward force due to the load, which acts as shown below:FBD of the beam shown above is as follows:

The free body diagram shows that the beam is subjected to a uniformly distributed load (UDL) of w kN/m over its entire length. At the mid-span, the load acting on the beam is half of the total load.

That is, 4w/2 = 2w kN. Summing the moments of forces about

        Point C, it yields the following equation:ΣMC = 0∑MC=0Internal normal force can be determined using the formula as given below:N = (wL/8) × (2L/3) + wL/2N=200.04 N

The internal normal force at point CC is 200.04 N.

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When a nonpolar molecule is placed in an electric field, the field does not interact with the electrons in the molecule, which are evenly distributed. Therefore, the field does not induce a dipole moment in the molecule, meaning that there is no separation of charge within the molecule.

This is because the electric field can only affect polar molecules, which have a separation of charge. In contrast, nonpolar molecules have no net separation of charge and are therefore not affected by the electric field. Therefore, none of the options given in the question are true for nonpolar molecules. In summary, nonpolar molecules do not experience a dipole moment when placed in an electric field.
When you place a nonpolar molecule in an electric field, the correct statement is: The field induces a dipole moment, with the negative end of the molecule in the direction of the field vector.
In this situation, the electric field temporarily distorts the electron cloud of the nonpolar molecule, causing a temporary dipole moment. The electrons are attracted to the positive end of the field, while the nuclei are repelled. As a result, the negative end of the induced dipole moment aligns with the direction of the field vector, while the positive end aligns in the opposite direction.

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Answer:

change in speed) / (time for the change)

              and the direction of the change.

Acceleration  =  (60 - 0) km per hour / 5 sec  =  12 km per hour per second, east.

I hear teachers all over the country complaining about that ugly unit.

It has to be changed to a more familiar unit of acceleration.

(12 km/hour) x (1 hour/3600sec) = 12,000/3600 = 3-1/3 meter/sec.

His acceleration is  3-1/3 meters per second² .

Explanation:

a

Answer:

u=0

v=60 km/ hr

60 \times 1000 \\ 60 \times 60 = 1800

t =5

t = 5 \times3600 = 18000

a= ?

a = v - u \div t

= 1800 - 0 \div 18000 \\

1m/s^2\: ans

Answer:

•battery

•Generator

•flywhell

•crank

Explanation:

the persons energy comes from his/her body that he/she gain from the food she/he eats

Answer:

red giant stars/ red hyper giants

Explanation:

take stephenson 2-18 for example the star is only 3200k where the sun is around 5000k.