Our balance is maintained, at least in part, by the endolymph fluid in the inner ear. Spinning displaces this fluid, causing dizziness. Suppose a dancer (or skater) is spinning at a very fast 2.6 revolutions per second about a vertical axis through the center of his head. Although the distance varies from person to person, the inner ear is approximately 7.0 cm from the axis of spin. part A What is the radial acceleration (in m/s^2 ) of the endolymph fluid? part B What is the radial acceleration (in g's) of the endolymph fluid?

All large telescopes are reflectors because large lenses are expensive to make and because large lenses sag under their own weight.

Telescopes are instruments used to observe celestial objects in the night sky. They work by collecting and focusing light, allowing astronomers to see distant stars, galaxies, planets, and other objects. Telescopes come in different types, including refracting telescopes, reflecting telescopes, and compound telescopes.

Compound telescopes, on the other hand, use a combination of lenses and mirrors. Telescopes have revolutionized our understanding of the universe by allowing us to study distant objects in great detail. They have helped us discover new planets, stars, galaxies, and even black holes. With the help of telescopes, astronomers have been able to make groundbreaking discoveries in the fields of astrophysics, cosmology, and planetary science, and they continue to be an essential tool in the study of the cosmos.

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Complete Question: -

Why are all large astronomical telescopes reflectors?

A floating object on top of pond water would stay afloat due to buoyancy.

When an object is placed on top of a liquid, such as pond water, it experiences an upward force called buoyancy. This force is exerted by the liquid and is equal to the weight of the liquid displaced by the object. As long as the buoyant force is greater than or equal to the weight of the object, the object will float. This occurs because the density of the object is lower than the density of the liquid, allowing it to displace a volume of liquid greater than its own weight. As a result, the floating object will remain on the surface of the pond water.

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Answer:

The work done on the box is 80 J.

Explanation:

Given that,

Weight of box = 40 N

Distance = 2 meter

We need to calculate the work done

Using formula of work done

\(W=F\times x\)

\(W=mg\times x\)

Where, x = distance

mg = weight

Put the value into the formula

\(W=40\times2\)

\(W= 80\ Nm\)

\(W=80\ J\)

Hence, The work done on the box is 80 J.

Answer:

Mass = 64,870,000,000 kilograms

Explanation:

Given the following data;

Density = 998 kg/m³

Volume = 6,500,000 m³

To find the mass of water in the reservoir;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the equation;

Density = mass/volume

Making mass the subject of formula, we have;

Mass = density * volume

Mass = 998 * 6,500,000

Mass = 64,870,000,000 kilograms

Answer:

1) correct answer is ii  larger size

2) false, 3) false, 4) true, 5) true, 6) true

Explanation:

In this exercise, the answer is asked if the statement is true.

1) in the rapid cooling speed, there is no thermodynamic equilibrium, so the secondary phases do not have time to transform into the main one, therefore many phases appear in the products,

the correct answer is ii

2) False. The transformation of a material to the glass state requires a fixed temperature and rapid changes to reach this temperature,

3) False. The most stable state is the crystalline state, the glass states are metastable, their Gibbs energy is not the lowest possible and they must transition to the crystalline state over time, it can be years or centuries.

4) True. The melting and freezing temperatures change for each material, within the same material it always has the same value, since it corresponds to a change in the state of the system.

5) true. Cast iron is called gray because of the impurities inside that have not had time to move due to rapid cooling.

6) True. The microstructure is reduced in the process of cooling and heating

Answer:

Two orbitals for their electrons and six in the 2p subshell

Explanation:

Hope this helps :)

Other than gravity, inertia is the force that governs a planet's or moon's orbit.

The values of an object's inertial weight and gravitational mass are the same, but their methods of measurement are different. While gravitational mass quantifies the force acting on an item in a gravitational field, inertial mass is determined by measuring an organism's resistance to change in velocity.

Inertia was ranked as the second-most potent force inside the universe by Kristofferson (behind gravity). Although other forces that are stronger than both have since been discovered, it is still one of most significant and powerful forces in the cosmos.

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Answer:

Natural light (Sun, stars.etc.) and Artificial light (Lamposts, televisions.etc.)

Hope that helps. x

a) The magnitude of the net magnetic force that acts on the particle is 2.18 x 10-6 N.
b) The angle that the net force makes with respect to the x axis is 63.8°.

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts. A pictorial representation of the magnetic field which describes how a magnetic force is distributed within and around a magnetic material.

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Answer:

it was equal to the weight of the object

hope it helped ☺️

Answer:

Greenhouse gases include carbon dioxide, methane, nitrous oxide and other gases that accumulate in the atmosphere and create the heat-reflective layer that keeps the Earth at a livable temperature. These gases form the insulation that keeps the planet warm enough to support life.

The ball was captured in 0.347 seconds if it were going horizontally and at a 15.1 m/s speed.

To make the computation easier, convert the distance & length data to meters.

The player and ball can be regarded as one entity when the ball is caught, and the preservation of momentum can be used to determine their velocity. When the ball is caught, the player's leap has no horizontal component and no vertical velocity, therefore the player's velocity plus the mass of the ball is

mP + BvP + B = mPvP + mBvB

vP + B =  (0.430 kg × vB) ÷ (90kg + 0.430 kg)

vP + B =  0.00475 m/s

At the point where they start to fall, this velocity is horizontal. The kinematic equation is used to

y = vt + (1 ÷ 2)gt²

The duration of their fall, assuming that gravity's acceleration is 9.81 m/s², is,

t = √(2y ÷ g)

t = (√(2 × 0.589)) × 9.81 s

t = 0.347s

We can use our equation to get the beginning velocity of the ball since we know the entire horizontal distance covered by the player and the ball.

R = vP + Bt

0.0345m = 0.00657vB × 0.347s

vB=15.1m/s

The player thus caught the ball while it was moving at 15.1 meters per second.

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Answer:

stress

Explanation:

Common causes of chronic insomnia include: Stress. Concerns about work, school, health, finances or family can keep your mind active at night, making it difficult to sleep. Stressful life events or trauma — such as the death or illness of a loved one, divorce, or a job loss — also may lead to insomnia.

Answer:

C. Chronic Stress

Explanation:

I took the test

Pregunta completa :

Un zapato de golf tiene 10 tacos cada uno con un área de 0.01 pulgadas en contacto con el piso suponga que al caminar hay un instante en que los tacos soportan el peso completo de una persona de 180 libras ¿cuál es la presión ejercida por los tacos sobre el suelo?

Responder:

12230825.435 pascal

Explicación:

Dado que:

Peso (W) = 180 libras

Número de tacos = 10

Área por montante = 0.01 in²

Área total (10 * 0.01) = 0.1 pulg²

Usando la calculadora de conversión:

180 libras = 81.647 kg

0.1 pulg² = 6.452 × 10 ^ -5 m²

Recordar :

Presión = Fuerza (Newton) / Área (m²)

Fuerza = masa * aceleración debida a la gravedad

Aceleración por gravedad = 9,8 m / s²

Presión = (81.647 * 9.8) / (6.452 * 10 ^ -5)

Presión = 800.1406 / 6.452 * 10 ^ -5

Presión = 12230825.435 pascal

The magnitude of the resultant displacement is 334.4 m and the direction of the resultant displacement is 53.1° North of East.

To draw the displacement vector diagram, we start at point A and draw a vector from A to B, representing the athlete's displacement of 120 m South.

We then draw a vector from the end of the first vector (B) to the end of the second vector (C), representing the athlete's displacement of 200 m East. Finally, we draw a vector from the end of the second vector (C) to point D, representing the athlete's displacement of 270 m North. The diagram should form a closed triangle.

To find the resultant displacement of the athlete, we use the Pythagorean theorem and trigonometry. Let's call the displacement from A to B "vector AB," the displacement from B to C "vector BC," and the displacement from C to D "vector CD." The magnitude of the resultant displacement (R) is given by:

R = √(AB² + BC² + CD²)

R = √(120² + 200² + 270²) = 334.4 m (rounded to one decimal place)

To find the direction of the resultant displacement, we use trigonometry. We can find the angle between the resultant displacement and the North direction using the following formula:

θ = tan⁻¹(CD/BC)

Where CD is the Northward component of the displacement vectors and BC is the Eastward component of the displacement vectors.

θ = tan⁻¹(270/200) = 53.1° (rounded to one decimal place)

Therefore, the magnitude of the resultant displacement is 334.4 m and the direction of the resultant displacement is 53.1° North of East.

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The negative sign for the height of the object indicates that it is inverted with respect to the axis of the mirror. Therefore, the height of the object is 50.8 cm.

a. To find the radius of curvature of the mirror, we can use the mirror formula:

1/f = 1/v + 1/u

where f is the focal length of the mirror, v is the distance of the image from the mirror, and u is the distance of the object from the mirror.

We are given that the object is placed 50 cm from the mirror (i.e., u = 50 cm), and the image is formed 30 cm from the focal point (i.e., v = 30 cm). We can use these values to solve for the focal length:

1/f = 1/30 + 1/50

1/f = (5/150) + (3/150)

1/f = 8/150

f = 18.75 cm

Therefore, the radius of curvature of the mirror is twice the focal length, i.e., R = 2f = 37.5 cm.

b. The magnification of the mirror is given by:

m = -v/u

where the negative sign indicates that the image is inverted.

We are given that the image is 30.5 cm high. Using the magnification formula, we can find the height of the object:

m = -v/u = -30/50 = -0.6

h_i/h_o = -m

h_o = h_i/m = 30.5/-0.6 = -50.8 cm

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Answer:

I get up at 5 in the morning exercise then take a shower then go back to sleep till it's time to eat breakfast and go to school. Then at 7 or 8 o clock pm after i eat dinner at 5 i exercise at 7 then take a shower and then go to bed i do this everyday.

Explanation:

Getting off the couch or out of your seat to start walking, running, bicycling, swimming or other activity may help you lead a healthier and happier life. ... Those activities can include walking briskly, gardening, bicycling slowly or even ballroom dancing.

Answer:

7.3 g/cubic cm

Explanation:

You divide the mass by the volume to calculate the density of the metal.

146g ÷ 20cm³ = 7.3g/cm³

Answer:

\(\boxed {\boxed {\sf D. \ -11 \ m/s^2}}\)

Explanation:

Acceleration can be found by dividing the change in velocity by the time.

\(a=\frac{v_f-v_i}{t}\)

where Vf is the final velocity, Vi is the initial velocity, and t is the time.

Since the car came to a complete stop, it's final velocity was 0 meters per second.

The initial velocity was 22 meters per second.

The time was 2.0 seconds.

\(v_f=0 \ m/s\\v_i=22 \ m/s\\t= 2.0 \ s\)

Substitute the values into the formula.

\(a=\frac{0 \ m/s-22 \ m/s}{ 2.0 \s }\)

Subtract in the numerator first.

\(a=\frac{-22 \ m/s}{2.0 \ s}\)

Divide.

\(a= -11 \ m/s^2\)

The acceleration of the car was -11 meters per square second. The negative acceleration indicates slowing down/stopping.

The block may move up to 19.7 cm from its resting position, and its oscillations last for a period of 2.76 seconds.

The final position less the starting position is known as displacement.

The greatest displacement is:

The simple harmonic motion equation can be used to determine the block's maximum displacement:

x = A * cos (wt)

where w is the angular frequency, t is the time, and A is the amplitude. The block's starting velocity can be used to compute the amplitude:

A = v0 / w

The spring constant can be used to determine the angular frequency:

Sqrt(k / m) = w

Where k is the spring constant and m is the block's mass.

Replacement of values

A = 50.0 cm/s/sqrt(17.5 N/m/0.800 kg), and w = sqrt(17.5 N/m/0.800 kg).

w = 2.32 rad/s, with A = 19.7 cm

The maximum displacement is equal to the amplitude:

x = A = 19.7 cm

The oscillation's time scale:

The angular frequency can be used to calculate the oscillation's period:

T = 2 * pi / w

Replacement of values

T = 2.76 s = 2.32 rad/s / 2 * pi

Therefore, the oscillation's period is roughly 2.76 seconds.

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If F = 37 N, the static frictional force between the block and the table and the minimum force required to move it must be equal.

It is the force that regulates itself. The value of static friction varies from zero to the smallest force required to initiate motion. The formula for determining static friction is as follows: Normal Force divided by the static friction coefficient is static friction.

Although the maximum static friction will rise, the frictional force will always be the same as the weight in mg because friction cannot accelerate an object. Because FrN can take any value less than N to balance the weight, this is the case.

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The term "inflation" refers to a sudden and extremely rapid expansion of the universe that occurred in a tiny fraction of a second during the universe's first second of existence.

This theory was proposed to address certain problems with the Big Bang theory, such as the horizon problem and the flatness problem. Inflation is thought to have caused the universe to expand exponentially, smoothing out irregularities and creating a relatively uniform distribution of matter and energy.

This allowed for the formation of large-scale structures like galaxies and clusters of galaxies. Inflation is supported by a variety of observations, including the cosmic microwave background radiation and the distribution of galaxies in the universe.

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The work done on the Puck by the applied force from the most positive to the most negative is c, b, a respectively.

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

F = ma

\(F= \frac{mv}{t}\)

The force applied to an object increases with increases in the velocity of the object.

In the given diagram, the resultant velocity of the puck is calculated as follows;

Figure a:

\(\Delta v = v_f -v_i\\\\\Delta v = 5 - 6 = - 1 \ m/s\)

Figure b:

\(v = \sqrt{4^2 + 3^2} \\\\v = 5 \ m/s\)

Figure c:

\(\Delta v = 4 - (-2)\\\\\Delta v = 6 \ m/s\)

Thus, the work done on the Puck by the applied force from the most positive to the most negative is c, b, a respectively.

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When people in small rural communities began installing their own receiving dishes and downlinking channels for free, the cable channels took legal measures to stop it.

Cable channels are television networks that distribute their programming to subscribers through a cable TV provider's cable line. They often include a wide range of specialized programming, such as sports, news, movies, and other entertainment.

When people in small rural communities began installing their own receiving dishes and downlinking channels for free, cable channels took legal measures to stop it. The cable channels argued that those who received the channels without paying were essentially stealing their content and thereby infringing on their copyright. Cable channels and networks began encrypting their satellite transmissions to stop people from downlinking channels for free. They added special decoders to the signals, which could only be decoded using a device rented from the cable company. This made it difficult for people to receive the channels without paying for them.In summary, when people in small rural communities began installing their own receiving dishes and downlinking channels for free, cable channels took legal measures to stop it. They encrypted their satellite transmissions to stop people from downlinking channels for free.

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In the reference frame of a rocket traveling in the positive x-direction at a certain velocity, the components of the electric field and magnetic field can be different from their values in the laboratory frame. . The electric field components will experience a relativistic transformation due to the Lorentz transformation equations, while the magnetic field components will remain unchanged as Bvector = 0 vector in the laboratory frame.

In the laboratory frame, the electric field is given as Evector = 1.5×10⁶ k^V/m, and the magnetic field is Bvector = 0 vector, indicating that there is no magnetic field present. In the reference frame of the rocket traveling in the positive x-direction at a velocity of 1.3×10⁶ m/s, we need to calculate the components of the electric field and magnetic field as observed by the rocket.

The electric field components in the rocket's reference frame will experience a relativistic transformation due to the effects of relative velocity. The transformation equations for the electric field are Ex' = γ(Ex - vBy) and Ey' = γ(Ey + vBx), where γ is the Lorentz factor, v is the velocity of the rocket, Ex and Ey are the electric field components in the laboratory frame, and Bx and By are the magnetic field components in the laboratory frame.

Since the magnetic field is given as Bvector = 0 vector in the laboratory frame, its components remain unchanged in the rocket's reference frame. Therefore, the components of the magnetic field in the rocket's reference frame will be Bx' = 0 and By' = 0.

To calculate the electric field components in the rocket's reference frame, we substitute the given values into the transformation equations and apply the Lorentz factor γ.

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Written communication involves the exchange of information between a sender and a receiver (option b). It involves transmitting information through written words, symbols, or figures.

The sender encodes the message, and the receiver decodes the message. The receiver is the person or group of people who receive the message and interpret the information provided. The effectiveness of written communication depends on how well the sender conveys the message, and how well the receiver comprehends the message. In business settings, written communication is used to convey important information such as policies, procedures, and performance reports.

The use of written communication allows for clear and concise messages that can be referenced later on. Additionally, written communication can be used as legal evidence in the event of a dispute. Overall, effective written communication requires careful planning, clear messaging, and attention to detail to ensure the receiver accurately understands the intended message.

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A brass axle with a volume of 0.318 cm weighs 2.7g.

Mass in physics is a quantitative representation of inertia, a fundamental property of all matter. Essentially, it relates to a substance's resistance to shifting its direction or speed in reaction to the application of a force.

You would use a balance as the tool to determine mass. The classic balance depicted here could aid in your understanding of what mass is, though you might also use a measuring cylinder or a triple beam balance in the lab to measure mass.

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