While most pitches are encoded directly by the placement of a frequency on the membrane, low-frequency tones are encoded by:
Answers
While most pitches are encoded directly by the placement of a frequency on the membrane, low-frequency tones are encoded by the phase-locking of the auditory nerve fibers.
This means that the nerve fibers fire in synchrony with the sound wave and the brain can then interpret this as a low-frequency tone. This is because the membrane's responsiveness decreases at lower frequencies, making it more difficult for it to accurately encode the pitch information.
While most pitches are encoded directly by the placement of a frequency on the membrane, low-frequency tones are encoded by the timing of the membrane's vibrations, also known as phase-locking. This explanation means that low-frequency sounds are represented by the synchronization of the membrane's movements with the incoming sound waves, allowing for accurate encoding of these lower pitches.
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Related Questions
A 750 kg roller coaster car drops from rest at a height of 90 m along a frictionless track. What is velocity of the roller coaster at the top of a second hill that is 60 m high? Show work
Answers
The velocity of the roller coaster at the top of the second hill is 24.25 m/s.
What is velocity?
Velocity is the rate of change of displacement. The s.i unit is m/s
To calculate the velocity of the coaster car, we use the formula below.
Formula:
mg(H-h) = mv²/2............... Equation 1Where:
m = mass of the coaster carH = Height of droph = Height of the second hillv = velocity of the roller coaster.From the question,
Given:
m = 750 kgH = 90 mh = 60 mg = constant = 9.8 m/s²Substitute these values into equation 1
750(9.8)(90-60) = 750(v²)/2Solve for v
375v² = 220500v² = 220500/375v² = 588v = √588v = 24.25 m/sHence, The velocity of the roller coaster at the top of the second hill is 24.25 m/s.
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The absence of any mechanical linkage between the throttle pedal and the throttle body requires the use of a _______ motor.
A. Throttle
B. AC
C. DC
D. Stepper
Answers
The absence of any mechanical linkage between the throttle pedal and the throttle body requires the use of a . Stepper motor. Option D.
In modern vehicles, the throttle system is commonly controlled electronically using a stepper motor. A stepper motor is a type of electric motor that moves in discrete steps or increments, as directed by an electronic control unit (ECU) based on inputs from sensors, including the throttle pedal position sensor.
With the use of a stepper motor, there is no direct mechanical connection between the throttle pedal and the throttle body. Instead, the ECU interprets the position of the throttle pedal and commands the stepper motor to move the throttle plate accordingly, regulating the airflow into the engine.
The stepper motor provides precise control over the throttle position, allowing for smooth and accurate adjustments based on driving conditions and engine demands. The ECU can precisely control the throttle opening angle and adjust it in real-time, optimizing fuel efficiency, emissions, and overall engine performance.
Stepper motors are particularly suitable for this application as they can hold their position without power, provide precise control over angular displacement, and offer good torque characteristics.
They are commonly used in drive-by-wire throttle systems, where electronic signals replace mechanical linkages, providing improved responsiveness and integration with other vehicle control systems.
In summary, the absence of a mechanical linkage between the throttle pedal and the throttle body necessitates the use of a stepper motor for electronic throttle control, allowing for accurate and efficient regulation of the engine's air intake. So Option D is correct .
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What is the current in a 120 volt circuit if the resistance 5 ohms?
O 24 Newtons
O 24 ohms
O 24 amps
O 24 volts
Answers
By Ohm's law:
V = IR→ 120 = I(5)
→ I = (120/5)
→ I = 24 Ampere
Hence, Option c) is correct
Explain
and evaluate the implementation of solar cells to generate electricity, by giving the pros and cons of it
Answers
Currently, wind power generates a greater overall share of electricity than solar does. Solar energy is a far more practical choice for households.
But where you are is exactly what matters. There is no one-size-fits-all answer in the energy industry. A species' capacity to coexist peacefully in its habitat while utilizing the energy sources most appropriate to that area is what is meant by intelligence. In areas like the Pacific Northwest, we would never anticipate solar power to surpass a source of energy like hydropower. In the same way that we wouldn't anticipate the growth of wind power in crowded urban regions like New York City.Solar energy presents a tremendous chance for individuals to make positive changes in their life in order to contribute to a more sustainable future. Although wind energy may not provide households the same advantages, it will undoubtedly play a significant role in the partnership of renewable energy sources in the drive towards a net-zero-carbon future.To know more about electricity
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The process of blood cell formation is known as ?
Answers
ita called hematopoiesis
Which planet would show the least variation in its distance from the sun?
O A. One with a large mass
OB. One with a small mass
C. One with a highly elliptical orbit
OD. One with a nearly circular orbit
Answers
Kepler's laws demonstrate how gravity affects orbits. They pertain to any orbiting object, such as planets around the Sun and moons.
The Sun is what?Our planet is subject to incredibly significant impacts from the sun: By photosynthesis, it supports seasons, climate, ocean currents, weather, and plant life. Life on Earth just wouldn't live without the heat and light provided by the sun. The solar system's centre is where the sun is located. The sun is a sizable ball of hot gases that spins and glows.
A gas is what?A liquid will expand in order to fill a closed container while inside of it. The air you inhale is an example of a gas. When applied to matter, the word "gas" can also refer to the state.
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3. A fighter jet covers a distance of 895m while accelerating from 22m/s to 35m/s. How long (in
seconds) did this take to happen?
Answers
Answer:
31.404 seconds
Explanation:
To answer this equation, SUVAT is your best option utilizing and rearranging the known values to solve for the unknown.
here we have the values for
s=895
u=22
v=35
t= the unknown value
in this instant the equation s=0.5 x (u+v)t is the best equation to use
so we sub in the known values
895=0.5 x (22+35)t
rearrange to solve for t
895=28.5t
895/28.5=t
t=31.404 seconds (rounded to 3 decimal places)
You are preparing a performance review and have the following measurement at hand: pv = 300; ac = 200; and ev = 250. what is cpi of the project? group of answer choices 0.80 1.25 1.50 0.83
Answers
The correct option is (b) 1.25
The CPI of the project is 1.25. Earned Value (EV) is divided by Actual Cost (AC) to determine CPI.
CPI is calculated as follows: EV / AC. In this case, 250 / 200 = 1.25.
The CPI measures the effectiveness of project resources in relation to the project budget. Earned Value is divided by Planned Value to calculate SPI. SPI evaluates how well resources are performing in relation to the project schedule.The cost performance index (CPI) is a gauge of how closely the realized value of the job actually accomplished matches the costs really incurred: CPI = EV / AC. The actual progress (earned value) in comparison to the expected progress is measured by the schedule performance index (SPI) = EV / PVThe departure from the project's expected cost is measured using the CPI. SPI is the variance from the project's projected completion date. The project is over budget if the CPI is less than 1. Project is running late if SPI is less than 1.Learn more about the CPI and SPI with the help of the given link:
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when a light ray passes at a non- 90° angle from water into air, it
Answers
The light ray bends away from the normal when passing from water into air at a non-90° angle.
When light passes through a boundary between two different mediums, such as water and air, it undergoes refraction. Refraction is the bending of light as it travels from one medium to another due to a change in its speed.
The direction of refraction depends on the angle of incidence (the angle between the incoming light ray and the normal, which is a line perpendicular to the boundary surface) and the refractive indices of the two mediums involved.
In this case, when a light ray passes at a non-90° angle from water into air, it will bend away from the normal. This means that the angle of refraction (the angle between the refracted light ray and the normal) will be greater than the angle of incidence.
This phenomenon can be explained using Snell's law, which states:
n₁ * sin(θ₁) = n₂ * sin(θ₂)
where n₁ and n₂ are the refractive indices of the initial and final mediums, and θ₁ and θ₂ are the angles of incidence and refraction, respectively.
In the case of water and air, the refractive index of water is higher than that of air, meaning that light travels slower in water than in air. When a light ray passes from water into air at a non-90° angle, it enters a medium (air) with a lower refractive index. As a result, the light ray bends away from the normal, as determined by Snell's law.
When a light ray passes at a non-90° angle from water into air, it bends away from the normal. This bending phenomenon is a result of the change in speed of light as it transitions between the two mediums and can be explained using Snell's law.
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velocity of a machine is always greater than mechanical advantage? why
Answers
Answer:The mechanical advantage of a machine is always less than its velocity ratio.It is because mechanical advantage decreases due to the friction and weight of moving parts of the machine, but the velocity ratio remains constant.
Explanation: hope this helps
an 1200-turn coil of wire that is 2.4 cmcm in diameter is in a magnetic field that drops from 0.15 tt to 0 tt in 11 msms . the axis of the coil is parallel to the field.
What is the emf of the coil?
Express your answer using two significant figures.
Answers
The emf of the coil is 0.52 V, using two significant figures calculated using Faraday's Law.
To calculate the emf, first find the change in magnetic flux, then use Faraday's Law. The change in magnetic flux is the product of the change in magnetic field strength, coil area, and the number of turns. The area of the coil can be calculated using the formula for the area of a circle (A = πr^2), where r is the radius (half the diameter). For a 2.4 cm diameter, the radius is 1.2 cm (0.012 m). The area of the coil is then approximately 4.52 × 10^-4 m^2.
The change in magnetic field strength is 0.15 T, and the number of turns is 1200. Therefore, the change in magnetic flux is 0.15 T × 4.52 × 10^-4 m^2 × 1200 turns = 0.08136 Wb.
Now, use Faraday's Law (emf = -N * (ΔΦ/Δt)) to find the emf. The time for the change is 11 ms, or 0.011 s. The emf is then: emf = -1200 turns * (0.08136 Wb / 0.011 s) = -0.522 V. Since the axis of the coil is parallel to the field, we can ignore the negative sign. The final emf is approximately 0.52 V, using two significant figures.
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How fast would an object with a mass of 100kg need to be going to hit the previous mass head on and come to a complete stop?
Answers
The required velocity of mass 100 kg is 3.75 m/s.
What is the required velocity of the mass 100 kg?
The required velocity of mass 100 kg is determined by applying the principle of conservation of linear momentum as follows;
This principle states that in an isolated or closed system, the sum of the initial momentum of an object is equal to the sum of the final momentum.
momentum of the 100 kg mass = momentum of 150 kg mass
100 kg x v = 150 kg x 2.5 m/s
v = ( 375 kg m/s ) / ( 100 kg )
v = 3.75 m/s
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The complete question is below:
A mass of 150 kg is moving 2.5 m/s. How fast would an object with a mass of 100kg need to be going to hit the previous mass head on and come to a complete stop?
Your friend, Tim, is playing with his sled. He ties a rope to his sled and attaches it to Lar's snowmobile. Tim has a mass of 71 kg, the tension in the rope is 220 N (horizontally), and a coefficient of kinetic friction is 0.1. Unfortunately, Tim can only hang on for 8 s.
(a) What is Tim's maximum speed?
Answers
The maximum speed of Tim is 16.95 m/s.
The given parameters:
Mass of the rope, m = 71 kgTension on the rope, T = 220 NCoefficient of kinetic friction, = 0.1Time of motion, t = 8 sWhat is Newton's second law of motion?Newton's second law of motion states that, the force applied to an object is directly proportional to the product of mass and acceleration of the object.The net force on Tim is calculated by applying Newton's second law of motion as follows;
\(T - \mu _k F_n = ma\\\\T - \mu _k F_n = m\frac{v}{t} \\\\T - \mu_k mg = m\frac{v}{t} \\\\t(\frac{T - \mu_k mg}{m} )= v\\\\8 (\frac{220 \ -\ 0.1 \times 71 \times 9.8}{71} ) =v \\\\ 16.95 \ m/s = v\)
Thus, the maximum speed of Tim is 16.95 m/s.
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at what altiitude is air density 0.9 kg/m3
Answers
The altitude at which air density is 0.9 kg/m3 is 3447 meters.
The density of air can be calculated using the ideal gas law, which states that the density of a gas is proportional to its pressure and inversely proportional to its temperature. This means that at higher altitudes, where the air pressure is lower and the temperature is cooler, the air density is also lower.
Using a standard atmospheric model, we can determine the altitude at which air density is 0.9 kg/m3. According to this model, air density decreases by approximately 12% for every 1000 meters of altitude. Therefore, to find the altitude at which air density is 0.9 kg/m3, we can use the following equation-
(0.9 kg/m3) = (1.225 kg/m3) x e^(-0.00012x)
Where x is the altitude in meters. Solving for x, we get:
x = -ln(0.9/1.225)/0.00012 = 3447 meters.
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I have no idea what the answer is for this but can someone help?
Answers
Answer:
Soft serve ice cream
Explanation:
1g fat = 9 calories
take the fat numbers for each option and multiple by 9 and see who gives you 101
vanilla ice cream = 11.2 x 9 = 100.8 rounded to 101
frozen yogurt = 4 x 9 = 36
French fries = 24.7 x 9 = 222.3
pretzels = 1 x 9 = 9
When dropped from rest, any object will fall a total distance of 19.6 m in the first 2 seconds of its fall. How far
does the object fall just during the 2nd second (i.e., from time t= 1 s to t = 2 s)?
Answers
Answer: The acceleration due to gravity increases the velocity of a falling object by 9.8 m/s per
second. Answer B is wrong because velocity increases. Answer C is wrong because the
distance increases every second. Ans. E is wrong because the derivative of distance with
respect to time gives the velocity, not the acceleration.
Explanation:
Enrique is given information about a satellite orbiting Earth. R = 3. 8 Ă— 108 m T = 18 days In order to calculate the tangential speed of the satellite, what should Enrique do first? convert the radius to kilometers convert the orbital period to seconds find the square root of the radius find the square root of the orbital period.
Answers
The first step that Enrique must take in order to calculate the tangential speed of the satellite is to convert the period from days to seconds.
We know that the SI unit of speed is meter per second and now, we with to obtain the tangential speed of the satellite.
Since the period is given in days, the first step is to convert the period from days to seconds.
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Answer:
convert the orbital period to seconds
Explanation:
I got it right on edge 2022
T/F:spectral lines can act like a to hlep astronomers identify the chemical ofthe electromagnetic radiation characteristics of a star
Answers
The given statement "spectral lines can act like a to hlep astronomers identify the chemical ofthe electromagnetic radiation characteristics of a star" is True. Spectral lines are specific wavelengths of light that are emitted or absorbed by different chemical elements.
When astronomers observe the spectrum of a star, they can see which wavelengths of light are present and which are missing. By comparing these observations to known spectral lines of different elements, astronomers can determine which chemical elements are present in the star. This information can provide insight into the star's age, composition, and evolution. Spectral analysis is a powerful tool used in astronomy to understand the chemical and physical properties of celestial objects.
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find the ratio of effusion rates of hydrogen gas and argon gas.
Answers
Answer:
The ratio of effusion rates of hydrogen gas to argon gas is approximately 4.47:1.
Explanation:
The ratio of effusion rates of two gases can be determined using Graham's law of effusion. According to Graham's law, the ratio of the effusion rates of two gases is equal to the square root of the inverse ratio of their molar masses.
In this case, we need to find the ratio of the effusion rates of hydrogen gas (H2) and argon gas (Ar).
The molar mass of hydrogen gas (H2) is approximately 2 g/mol, and the molar mass of argon gas (Ar) is approximately 40 g/mol.
Using Graham's law, the ratio of effusion rates (R) can be calculated as:
R = √(M2/M1)
R = √(40/2) = √(20) = 4.47
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A plastic bowl is floating in a sink full of water. Which of the following describes the microscopic cause of the buoyant force exerted on the bowl by the water? Gravitational attraction between the molecules of the bowl and the molecules of the water Electrostatic attraction between the nuclei in the molecules in the bowl and the electrons in the molecules of the water Electrostatic repulsion between the nuclei in the molecules in the bowl and the nucles in the molecules of the water D Electrostatic repulsion between the electrons in the molecules in the bowl and the electrons in the molecules of the water
Answers
The correct option is D. The buoyant force exerted on the bowl by the water is caused by the electrostatic repulsion between the electrons in the molecules of the bowl and the electrons in the molecules of the water.
What is buoyant force?Buoyant force is a force that is exerted on an object when it is submerged in a fluid, such as a liquid or a gas. This upward force is caused by the fluid's pressure pushing up on the object, counteracting the force of gravity pushing down on the object. This force is often referred to as an "upthrust." The magnitude of the buoyant force depends on the density of the fluid, the volume of the object, and the depth at which the object is submerged. When an object is less dense than the fluid, the buoyant force acts to keep the object afloat.
This electrostatic repulsion creates a force that pushes the bowl up, making it float in the water.
Therefore, the correct option is D.
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Which wave has the lowest amplitude?
Answers
Wave D has the lowest amplitude. The highest point of a wave is called amplitude.
What is amplitude?The distance between from the crest of a wave to the next crest is known as the amplitude. It is denoted by a.
The standard equation for the SHM is found as;
\(\rm y = asin \omega t\)
Where, a represent the amplitude of the wave.
In the wave D it is observed that the distance from center axis to the highest point of the wave is smallest. Hence, wave D has the lowest amplitude.
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Answer:
To summarize what the expert answer said, it's the last box.
Explanation:
A mortar shell is accidentally shot straight up with an initial speed of 147 m/s. How long does it take for the shell to reach its maximum height? How high does the shell rise? If the shell falls straight down after is stops, what is its velocity when it hits the ground? What is the total time the shell is in the air?
Answers
Answer:
1) t ≈ 14.985 seconds
2) The maximum height reached ≈ 1101.4 meters
3) The velocity with which it hits the ground = 147 m/s
4) The total time in the air ≈ 29.969 seconds
Explanation:
1) The given information are;
The initial velocity of the mortar shell = 147 m/s
The direction of the mortar shell = Vertically upwards
Therefore, we have, from the equation of motion
v = u - g·t
Where;
v = The final velocity = 0 at maximum height
u = The initial velocity = 147 m/s
g = The acceleration due to gravity = 9.81 m/s²
Therefore, we have;
0 = 147 - 9.81 × t
9.81 × t = 147
t = 147/9.81 ≈ 14.985 seconds
t ≈ 14.985 seconds
2) From the equation of motion, v² = u² - 2×g×s
Where;
s = The maximum height reached
We have;
0² = 147² - 2×9.81×s
2×9.81×s = 147²
s = 147²/(2×9.81) ≈ 1101.4 meters
The maximum height reached ≈ 1101.4 meters
3) The velocity with which it hits the ground is equal to the initial velocity = 147 m/s
4) The total time in the air = 2 × The time it takes to reach maximum height
The total time in the air = 2 × 14.985 ≈ 29.969 seconds
The total time in the air ≈ 29.969 seconds
what role does gravity have in the motion of planets around the sun?
Answers
Answer:
The gravity helps the planets stay together near the Sun, without it Earth would be floating away with the planet eventually becoming frozen up, thus the role gravity have in the motion of planets around the sun is by keeping them together.
Explanation:
Hope this helps!
light travels through space at a speed of 299,792,458 m/s. how fast is that in miles per minute
Answers
Answer:
11 176 943.8 miles per minute
Explanation:
according to a reliable source
A car is travelling at a constant speed of 50 km/h. How long will it take to travel 20 km? *
Answers
20km / 50km/h = 0.4h = 24mins
What is the best way to ensure that a 40 watt bulb and a 60 watt bulb have the same voltage applied to them
Answers
Answer:
Wire them in parallel ( rather than in series)
Explanation:
If you wire them in parallel they will have same voltage applied
A physics teacher is desperate to break his students
of a physics misconception. To do this, he drops a
book from a height of 1.4 m. How fast is the book
going when it hits the ground?
Answers
If a book is drops from a height of 1.4 m, then the speed with which book hits the ground is 5.2 m/s.
Given,
Initial velocity = 0m/s
Height = h = 1.4m
Acceleration due to gravity = 9.8 m/s2.
This can be calculated by using third equation of motion,
v2 - u2 = 2gh
where,
v is the final velocity
u is the initial velocity
h is the height
and g is the acceleration due to gravity.
By substituting all the values, we get
v2 = 2 × 1.4 × 9.8
v2 = 27.44
v = 5.2 m/s
Thus, we concluded that if a book is drops
from a height of 1.4 m, then the speed with which book hits the ground is 5.2 m/s.
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Question 15 (1 point
[01.03)
Which statement is true going
Oo
Ос
Gravity is the force of attraction between two dojeas with mask and is tecedent on the distance been these objes
Granty is the force that resesto dojects that have opposite charges. It is dependent upon the charges of the objec
Greity is a force that keeps dojects moving in space. The less the objects wegs, the former out in space gauty will pull the
Object
Gravity is the force of resistance to a change in position. The greater the distance been objects, the greater tis force will
Oo
Answers
Explanation:
The true statement about gravity is that it is the force of attraction between two objects with masses and also, based on the distance between these objects.
Gravity is a force of attraction.
The best scientific overview of the force of gravity is given by the Newton's law of universal gravitation which states that "the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them",
So, gravitational force of attraction is dependent on mass and the distance between two bodies.
Which evidence did Wegener use to develop the theory of continental drift?
A. The climate of Siberia has always been the same.
B. There is no evidence of glaciers anywhere in South America.
C. Similar fossils were found on different continents.
D. The Rocky Mountains are taller than the Appalachian Mountains.
Answers
Answer:
ExplaB. There is no evidence of glaciers anywhere in South Americnation:
Answer: b
Explanation:
the same quantity with the same units as force (kgm/s^2) times time, ft, with dimensions mlt^-1 is
Answers
The same quantity with the same units as force (kgm/s²) times time (s), ft, with dimensions mlt⁻ ¹ is the impulse
How is impulse calculated in physics?The quantity with the same units as force (kgm/s²) times time (s) is known as impulse. Impulse is the change in momentum of an object and is equal to the force applied to the object multiplied by the time for which the force is applied. It has the dimensions of [kg·m/s]. Impulse can be calculated using the formula:
Impulse = Force × Time
Impulse is a vector quantity and represents the change in momentum in the direction of the applied force.
It is commonly used in the study of collisions and interactions between objects, as it helps determine the effect of a force on the motion of an object over a certain period of time.
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