Suppose we want a satellite to revolve around the earth 6 times a day. what should the radius of its orbit be? (neglect the presence of the moon.)

The order of hearing involves sound waves passing through the outer ear, middle ear, and inner ear, with each part playing a crucial role in converting these waves into nerve impulses that the brain can understand.

The order of being able to hear involves several parts of the ear. The first step is sound waves entering the outer ear and traveling through the ear canal to reach the eardrum. The eardrum then vibrates, which sets three tiny bones (the malleus, incus, and stapes) in motion. These bones amplify and transfer the vibrations to the cochlea, a snail-shaped organ filled with fluid and hair cells. The hair cells convert the vibrations into electrical signals that are sent to the auditory nerve and then to the brain, where they are interpreted as sound.

The process of hearing involves a specific order of events that occur within the ear's structures, enabling us to perceive and interpret sounds. Here is an overview of this process: Sound waves enter the outer ear (also called the pinna) and are funneled into the ear canal. The sound waves travel through the ear canal and reach the eardrum (tympanic membrane), causing it to vibrate. These vibrations are transferred to the middle ear, which contains three small bones called the ossicles (malleus, incus, and stapes). The malleus connects to the eardrum, and the stapes connect to the oval window, a membrane-covered opening that leads to the inner ear. The ossicles amplify the vibrations and transmit them to the oval window. The vibrations at the oval window create pressure waves in the fluid-filled inner ear, specifically within the cochlea, a spiral-shaped structure that houses the organ of Corti. The pressure waves move through the cochlea, causing the basilar membrane to move. The organ of Corti, which lies on the basilar membrane, contains hair cells that are connected to nerve fibers. The movement of the basilar membrane causes the hair cells to bend, generating electrical signals (nerve impulses) in the auditory nerve. These nerve impulses travel via the auditory nerve to the brain, where they are processed and interpreted as sound.

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Answer:

is

Explanation:

e

A proton is moving in a region of uniform magnetic field The magnetic field is directed into the plane of the paper: The arrow shows the velocity of the proton at one instant and the dotted circle gives the path followed by the proton. The path of the proton is a circle because it experiences a magnetic force perpendicular to its velocity. the time for one complete revolution is approximately 1.7 microseconds.

The path of the proton is a circle because it experiences a magnetic force perpendicular to its velocity. According to the right-hand rule, when a charged particle moves in a magnetic field, the force acting on it is perpendicular to both the velocity vector and the magnetic field direction. In this case, the force acts towards the center of the circle, causing the proton to move in a circular path.

To calculate the radius of the circular motion, we can use the formula for the centripetal force:

F = (q * v * B) / r

Where:

F is the centripetal force,

q is the charge of the proton (\(1.6 x 10^-{19}\) C),

v is the velocity of the proton (\(2.7 * 10^6\) m/s),

B is the magnetic field strength (0.41 T),

and r is the radius of the circular path.

The centripetal force is provided by the magnetic force, so we can equate the two:

(q * v * B) / r = (m * v^2) / r

Simplifying and rearranging the equation, we find:

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

Substituting the values:

r = (\(1.67 * 10^{-27}\) kg * \(2.7 * 10^6\)m/s) / (\(1.6 * 10^{-19}\)C * 0.41 T)

Calculating this gives us the radius of the circular motion.

To calculate the time for one complete revolution, we can use the formula for the period (T) of circular motion:

T = (2 * π * r) / v

Substituting the calculated radius and the velocity value, we can find the period.

To calculate the radius of the circular motion, we'll use the formula:

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

Plugging in the values:

r = \((1.67 * 10^{-27} kg * 2.7 * 10^6 m/s) / (1.6 * 10^{-19} C * 0.41 T)\)

r ≈\(1.47 * 10^-3\) m or 1.5 mm (rounded to two significant figures)

So, the radius of the circular motion is approximately 1.5 mm.

To calculate the time for one complete revolution, we'll use the formula:

T = (2 * π * r) / v

Plugging in the values:

T = (2 * π * 1.47 x\(10^-3\) m) / (2.7 x \(10^6\) m/s)

T ≈ 1.73 x \(10^-6\) s or 1.7 μs (rounded to two significant figures)

Therefore, the time for one complete revolution is approximately 1.7 microseconds.

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Answer: H2CO3

Explanation:

The direction of the induced current in the wire loop is anti-clockwise.

The direction of the induced current if the wire loop was on the left side of the wire is clockwise.

Lenz's law and the direction of the induced current are the key concepts needed to address this issue.

To determine the direction of the induced current under various circumstances, use Lenz's law.

The induced emf of the coil is proportional to the negative of the rate of change of magnetic flux, according to Faraday's law.

The following expression represents the typical emf that is generated in the coil during the course of the time period: \($$\varepsilon=-\frac{\Delta \Phi}{\Delta t}$$\)

Here, \($\varepsilon$\) is the average emf that is induced in the coil during the time interval and \($\Delta \Phi / \Delta t$\) is the rate of change of magnetic flux.

A magnetic field is induced in the rectangular loop as a result of the current in the wire. The plane is the intended target of this magnetic field.

As the current in the wire grows, the magnetic flux in the rectangular coil rises.

An emf and current are induced by Faraday's law.

Following is noted from Lenz's law:

The inwards growing flux is opposed by the generated current. Therefore, the induced current must flow counterclockwise in order to meet this.

When the rectangular loop is kept to the left of the wire, the magnetic flux will be directed outward.

If the wire loop was on the left side of the wire, the induced current would flow clockwise.

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A colloid is a combination in which one material is suspended throughout another substance and contains scattered insoluble particles. Blood is a colloid solution.

A colloid is a combination in which one material is suspended throughout another substance and contains scattered insoluble particles. The whole combination is referred to as a colloidal solution.

A colloid contains a dispersed phase a continuous phase. The colloidal mixture must either not settle or settle extremely slowly.

The above property is shown by the blood. Hence blood is a colloid solution.

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Answer:

heterogeneous , suspension

Explanation:  believe me or don't idc

Answer:

i think it is 123

Part (a) To find the total capacitance of the circuit, we need to use the formula for capacitors in parallel and series. In this case, the accelerationare in both parallel and series, so we need to break it down into steps.

First, we can find the equivalent capacitance of C1 and C2 in parallel: C12 = (C1 x C2) / (C1 + C2) = (7.8 ?F x 13.2 ?F) / (7.8 ?F + 13.2 ?F) = 4.96 ?F.

Then, we can find the total capacitance of C12 and C3 in series: C123 = 1 / ((1 / C12) + (1 / C3)) = 1 / ((1 / 4.96 ?F) + (1 / 4.9 ?F)) = 2.45 ?F.

Therefore, the total capacitance of the circuit is 2.45 ?F.

Part (b) To find the total energy stored in the capacitors, we can use the formula U = 0.5 x C x V^2, where U is the energy stored, C is the capacitance, and V is the voltage.

For C1, U1 = 0.5 x 7.8 ?F x (12 V)^2 = 673.92 ?J.
For C2, U2 = 0.5 x 13.2 ?F x (12 V)^2 = 1,411.2 ?J.
For C3, U3 = 0.5 x 4.9 ?F x (12 V)^2 = 352.8 ?J.

The total energy stored in the capacitors is U = U1 + U2 + U3 = 2,437.92 ?J.

Therefore, the numerical value of the total capacitance of the circuit is 2.45 ?F and the numerical value of the total energy stored in the capacitors is 2,437.92 ?J.

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Answer:

Option (C) is the answer

Explanation:

may be it is possible if that we stand so far

The temperature for which the minimum escape energy is 15 times the average kinetic energy of an oxygen molecule is 291.15 K.

At the surface of the Earth, the potential energy of a molecule of mass m is given by,

U = -GmM/R

where G is the gravitational constant, M is the mass of the Earth, and R is the radius of the Earth.

To escape the Earth's gravitational pull, the molecule needs to have enough kinetic energy such that its total energy, given by the sum of its kinetic and potential energies, is zero or positive

K + U ≥ 0

where K is the kinetic energy of the molecule.

Substituting the expression for U and solving for K,

K ≥ GmM/R

The temperature for which the minimum escape energy is 15 times the average kinetic energy of an oxygen molecule can be determined by equating the minimum escape energy to 15 times the average kinetic energy per molecule,

(3/2) kT = 15 (1/2) mv^2

where k is Boltzmann's constant, T is the temperature, m is the mass of an oxygen molecule, and v is the root-mean-square speed of oxygen molecules at that temperature.

Substituting the expression for v and solving for T,

T = (15mvg^2)/(3k)

T = (5mvg^2)/(k)

Therefore, the minimum escape energy in terms of m, g, and R is,

K = GmM/R

And the temperature for which the minimum escape energy is 15 times the average kinetic energy of an oxygen molecule is,

T = (5mvg^2)/(k)

Substituting the values of G, M, R, k, m, and g,

K = (2.0 × 10^-20) m Joules

T = (5 × 32 × 1.66 × 10^-27 × (9.8)^2)/(1.38066 × 10^-23) K

T = 291.15 K

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Answer:

Michael wanted to see what kitchen cleaner worked best for cleaning his counters. He used Lysol, Clorox, Pine-Sol, and water. For each cleaner, he used 5 milliliters of grape juice on the counter, sprayed the cleaner, and wiped it with one paper towel. Which of the following would be a constant?

answer choices:

-Lysol

-Cleaning products

-5 milliliters of grape juice

-Cleanest countertop recorded

5 milliliters of grape juice will be constant.

Explanation:

The different cleaning agents have different cleaning capabilities and some will require more of its quantity than others to clean the counter.

Secondly, only the grape juice has a measured amount of 5 milliliters

Answer: James Joule

Explanation:

power is the rate at which work is done

The amount of wavelength of light thick is the thumbnail x/y.

Given:

Wavelength of light= x

Thickness of thumbnail= y

The amount of wavelength thick the thumbnail is x/y

What is wavelength?

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Impossible hoops in basketball is called Physics and that is option (3).

The term used to describe impossible hoops in basketball is "trick shot." A trick shot is a shot that is made in an unusual or difficult way, often for entertainment purposes or to show off skills.

While some trick shots may require a certain level of luck or coincidence, they are usually based on a combination of physics and skill.

Magic, on the other hand, implies an element of deception or illusion, which is not typically involved in basketball trick shots.

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Answer:

2.82 m/s²

Explanation:

\(v = u + at \\ 24 = 0 + a(8.5) \\ a = 2.82 \: ms {}^{ - 2} \)

The acceleration of a motorcycle is 2.82 m/s^2.

Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

Given that:

Initial velocity of the motor cycle: u = 0 m/s.

Final velocity of the motorcycle = 24 meter/second.

Time taken to reach this velocity = 8.5 second.

Hence, acceleration of the motor cycle = change in velocity/time interval

= ( final velocity - initial velocity)/time interval

= ( 24 m/s  - 0 m/s)/8.5 s

= 2.82 m/s^2.

Its acceleration is 2.82 m/s^2.

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Answer:

the rate of change of displacement is named as velocity.it is a vector quantity                        

                                    VELOCITY=displacement/time

where the rate of change of velocity is named as acceleration

                                    ACCELERATION=velocity/time

Answer:velocity is defined as the displacement per unit time is called velocity. e. g

Acceleration is defined as the change of velocity of a body is called Acceleration. e. g if car moving with the constant velocity so Acceleration will be zero. If the velocity of car change so Acceleration also change.

The example of velocity is on picture...

Explanation:

When a beam of 11 keV X-rays illuminates a sample, the angles that will produce diffraction maxima of the first, second, and third order can be calculated using Bragg's law, which states that nλ = 2d sin(θ), where n is the order of diffraction, λ is the wavelength of the X-rays, d is the spacing between crystal lattice planes, and θ is the angle of incidence.

Bragg's law can be used to calculate the angles for diffraction maxima. For the first-order maximum (n = 1), we have λ = 2d sin(θ₁). Rearranging the equation, we get sin(θ₁) = λ / (2d). Substituting the values, with λ representing the wavelength of 11 keV X-rays (which can be converted to the corresponding wavelength), and the known spacing between lattice planes, we can solve for θ₁.

For the second-order maximum (n = 2), the equation becomes λ = 2d sin(θ₂). Solving for sin(θ₂) and substituting the values, we can find θ₂.

Similarly, for the third-order maximum (n = 3), we use λ = 2d sin(θ₃) to determine sin(θ₃) and find θ₃ by substituting the values.

By calculating these angles using Bragg's law, we can determine the angles that will produce diffraction maxima of the first, second, and third order for the given beam of 11 keV X-rays illuminating the sample.

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1.875

Explanation:

speed = distance moved ÷ time taken

When a dolphin pokes its head out of the water it is nearsighted. Dolphins have good eyesight both above and below the water's surface. It would be nearsighted in the air because the refractive index of air is lower than that of water.

A nearsighted person sees close to gadgets truly, at the same time as objects within the distance are blurred. Farsightedness is the result of the visible photograph being centered behind the retina instead of immediately on it. It can be caused by the eyeball being too small or the focusing energy being too susceptible.

Nearsightedness (myopia) is a common imaginative and prescient circumstance in which you could see gadgets close to to you sincerely, however, objects farther away are blurry. It occurs when the form of your eye reasons mild rays to bend (refract) incorrectly, focusing photos in the front of your retina in preference to on your retina.

Nearsightedness occurs when your eyeball grows too long from the front to back, or whilst there are troubles with the shape of your cornea (clear front layer of the eye) or lens (an inner part of the eye that allows eye cognizance).

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Answer:

209.3 m

Explanation:

x component will be  253 cos 55.8

y component will be  253 sin 55.8 = 209.3 m

Answer:

bounces off the mirror at the same angle it hits the solid surface.

Explanation:

According to the Law of Reflection, a light ray strikes a mirror at the point of incidence bounces off the mirror at the same angle it hits the solid surface.

The incident ray and the reflected ray lie in the same plane

The angle of incidence is equal to the angle of reflection as a ray of light reflects off a solid surface.

So,

correct answer is ''bounces off the mirror at the same angle it hits the solid surface.''

A heat engine is a device that transforms thermal energy into mechanical work. In order to find the actual thermal efficiency of a heat engine, we use the formula: Thermal efficiency = (Work output / Heat input) * 100We are given that the heat engine accepts heat at a rate of 14 MW and rejects heat to a sink at 6 MW.

The heat input is 14 MW and the heat output is 6 MW. The work output is the difference between the heat input and the heat output. Hence, the work output is:

Work output = Heat input - Heat output

= 14 MW - 6 MW

= 8 MW

The actual thermal efficiency of the heat engine is:

Thermal efficiency = (Work output / Heat input) * 100

= (8 MW / 14 MW) * 100

= 57.14 %

We only need to calculate and report the actual thermal efficiency of the heat engine, our answer is 57.14%.

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True, electrically neutral objects have no positive or negative charges, that is why they are neutral.

Electrically neutral objects have an equal number of protons and electrons, so the total charge on the object is zero. This is why we refer to the object as being ‘neutral’. It has no charge.

In a chemical reaction, protons are transferred between particles, such as atoms or ions. When an atom loses or gains protons, its charge changes, either becoming more negative or more positive.

An atom which has the same number of protons and electrons has a net charge of zero and is neutral.

In an electric field, a neutral object experiences no force due to the absence of electric charge on its surface. When placed in a magnetic field, however, a neutral object still experiences a force due to its electrons.

Electrons have a magnetic moment, so they are affected by the magnetic field, causing the neutral object to move.

Electrically neutral objects have no positive or negative charges, that is why they are neutral.

Their charge is zero, so they are not affected by electric fields, but still experience a force in a magnetic field due to the magnetic moment of their electrons.

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Answer:

the first statement...

Answer:

The first answer is correct.

Plz mark brainliest.

Hope I helped.

Explanation:

Answer:

B would be the correct answer

Answer:

false

Explanation:

A resistor only reduces or regularizes the flow of current, not stop it totally.