How far does a person travle in coming to a complete stop in 33 ms at a constant acceleration of 60g?

The statement is True.  

Neurons have a net negative charge when it is at rest. This means that when they are well active, they must have a positive charge.

At rest, neurons have a net negative charge; the inside of neurons is approximately 70 millivolts more negative than the outside. When neurons are active, they must be positively charged in order to generate an action potential.

Neurons have a strong negative charge within them, as opposed to a positive charge outside. This is due to the presence of other molecules known as anions. They are negatively charged but far too large to escape through any available channel. They remain in place and give the cell a negative charge on the inside.

Because of an unequal distribution of positive ions across the membrane, the resting potential is negative; 3 Na+ is pumped out of the cell for every 2 K+ that enters, so the inside of the cell is less negative (less positive) than its surroundings.

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For customer arrivals, the random number interval assigned to the time between arrivals of 2 minutes is 0.0500-0.19999.

Time is the continued sequence of the existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of the various measurements used to sequence events, to compare the duration of events or the intervals between them, and to quantify rates of change of quantities in material reality or in the conscious experience. Time is often referred to as a fourth dimension, along with the three spatial dimensions.

Time has long been an important subject of the study in religion, philosophy, and science, but defining it in a manner applicable to all fields without circularity has consistently eluded scholars. Nevertheless, diverse fields such as the business, industry, sports, the sciences, and the performing arts all incorporate some notion of time into their respective measuring systems.

Time in physics is operationally defined as the "what a clock reads".

The physical nature of the time is addressed by general relativity with respect to events in spacetime. Examples of events are collision of two particles, the explosion of a supernova, or the arrival of a rocket ship. Every event can be assigned the four numbers representing its time and position (the event's coordinates).

However, the numerical values are different for the different observers. In general relativity, question of what time it is now only has meaning relative to a particular observer. Distance and the time are intimately related, and the time required for light to travel a specific distance is the same for all observers, as first publicly demonstrated by Michelson and Morley. General relativity does not address nature of time for extremely small intervals where quantum mechanics holds. At this time, there is no generally accepted theory of the quantum general relativity.

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No, there is no range of angles for total internal reflection(TIR).

Total internal reflection (TIR) is an optical phenomenon when waves arriving at the interface (boundary) of two media, such as water and air, are entirely reflected back into the first (internal) medium rather than being refracted into the second (external). It happens when the waves are incident on the interface at a suitably oblique angle and the second medium has a higher wave speed (i.e., lower refractive index) than the first. TIR occurs not only with electromagnetic waves like light and microwaves but also with other types of waves, including sound and water waves. For instance, the water-to-air surface in a typical fish tank, when viewed obliquely from below, reflects the underwater scene like a mirror with no loss of brightness.

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Both countries will have the same advantage in producing goods if they produce the consumption goods and capital goods and currently have identical production curves.

According to the theory of comparative advantage, a person should participate in an economic activity in which they have a comparative advantage, i.e., in which they are more effective than in the other activity. In terms of economies, they should engage in the production of those commodities and services at which they are better placed than the other.

The output potential, resource level, and technological level of two nations A and B are identical. This suggests that both countries A and B are producing at the same level and that neither one is doing better than the other in terms of production.

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Answer:

P = W / t         work / time = power

P = F * S / t

F = P t / S       force required

F = P / (S / t)            since given .075 meters / sec

F = 340 J/sec / .075 m/sec = 4530 J / m = 4530 Newtons

An inert atmosphere was obtained by adding nitrogen in a room that measures 11.0 ft x 11.0 ft and has a 8.00 ft ceiling. The number of liters of nitrogen that were used to fill the room is : (D) 2.74 x 104  Liters.

The number of liters of nitrogen that were used to fill the room

= Volume of room in cm3 x 1 Liters / 103 cm3

Volume of room in cm3 = 11.0 ft x  (30.48 cm / 1 ft) x  11.0 ft x  (30.48 cm / 1 ft) x 8.00 ft x (30.48 cm / 1 ft)

= 27410707.501 cm3  or 2.741 x 107 cm3

And since  1 Litres = 103 cm3

Volume of room in cm3  = 2.74 x 107 cm3

Now putting these values in the above equation we get

So, the number of liters of nitrogen that were used to fill the room

= Volume of room in cm3 x 1 Liters / 103 cm3

= 2.74 x 107 cm3  x 1 Liters / 103 cm3

= 2.741 x 104  Liters

Thus, an inert atmosphere was obtained by adding nitrogen in a room that measures 11.0 ft x 11.0 ft and has a 8.00 ft ceiling. The number of liters of nitrogen that were used to fill the room is 2.74 x 104  Liters.

The area of the walls is 2 ,160 ft ²

we know that,

The area of the walls is =  perimeter of the conference room *   the height of the ceiling

So,

A = 2 (40 + 50 ) (12)

A = 2 , 160ft²

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The force on the y-component is 227.92 N. suppose the x-axis force is 302 N counter clockwise and points at 149 degrees.

Given:

[tex]Force\;on\;x-axis,\;f =302\;N[/tex]

[tex]Angle,\;\theta=149^{\circ}[/tex]

We know that, Force on y-axis,

[tex]f_{y}=f\;sin\;\theta[/tex]

[tex]f_{y}=302\;sin\;\149^{\circ}[/tex]

[tex]f_{y}=227.92\;N[/tex]

Hence, the force acting on the y-component is 227.92 N.

Components of force in a vector are the magnitude and direction of each component. In other words, they provide information on how much push/pull is being exerted by an object on another object or person. Generally speaking, these components can be classified into two categories:

Anchor (A): The anchor represents the force that pulls objects together. It usually corresponds to the gravitational pull between two masses or large projectiles.

Magnitude (M): This refers to how strong the force is – greater numbers mean stronger forces.

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The lung volume that represents the maximum amount of exchangeable air is the: vital capacity

The vital capacity is the volume of air that can be taken into the lungs by inhaling and expelling air by inspiration and expiration. it is also known as (VC).

The value of the VC is around 4800 mL and it varies according to the age and body size. The formula to calculate the vital capacity is:

VC = TV+IRV+ERV

Where:

The lungs are one of the largest organs of the body and are in charge of the respiratory function. They have a spongy appearance and are located in the thorax, protected by the ribs, one on each side of the heart.

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The potential difference of 2.7 x [tex]10^{4}[/tex] volts is needed.

We have an X - Ray tube to produce X - Rays.

We have to determine what potential difference to produce X-rays with a minimum wavelength of 45.0 pm ?

An X - Ray is an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light.

According to the question, we have -

λ = 45 pm = 4.5 x [tex]10^{-11}[/tex] meter

h = 6.63 × [tex]10^{-34}[/tex]Js

c = 3 x [tex]10^{8}[/tex] m/s

We know -

E = hv

where v is frequency.

E = [tex]$\frac{hc}{\lambda}[/tex]

When accelerated through a potential difference of say V volts, then -

E = E(k) = eV

Therefore -

eV =  [tex]$\frac{hc}{\lambda}[/tex]

V = [tex]$\frac{hc}{e\lambda }= \frac{6.63\times 10^{-34} \times 3\times 10^{8} }{1.6\times 10^{-19} \times 4.5 \times 10^{-11} }[/tex] = 2.7 x [tex]10^{4}[/tex] volts

Hence, the potential difference of 2.7 x [tex]10^{4}[/tex] volts is needed.

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During the resting phase,  −80 mV is the electric potential energy of a typical Na ion outside of the cell

The power required to move a charge in opposition to an electric field is known as electric potential energy. A charge must be moved through a stronger electric field with more energy, but it also must be moved through a weaker electric field with more energy.

You cannot see the charge that is waiting to pass through the wires when a light switch is off. That is but one illustration of electric potential energy. Other instances include: a switched-off incandescent light bulb.

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The compound f is increasing at the rate of 0.46 mol per second.

The number of moles of a compound is defined as the mass of the compound divided by its molecular mass. The SI unit of the number of moles is mol. The number of moles is represented by the symbol 'n'.

[tex]Number \: of \: moles = \frac{ Mass}{ Molecular \: mass}[/tex]

[tex]n = \frac{m}{M} [/tex]

The balanced equation for the reaction is,

2 d (g) + 3 e (g) + f (g) => 2 g (g) + h (g)

In the reaction, 3 moles of compound e are consumed to give 2 moles of compound g.

For 1 mole of compound e consumed to form =

[tex] \frac{2}{3} \: moles \: of \: g \: formed.[/tex]

The compound e is decreasing at the of = 0.69 mol/s

So, the rate at which g is increasing is,

[tex] = \frac{2}{3} \times 0.69[/tex]

[tex]= 0.46 \: mol/ s[/tex]

Therefore, compound f is increasing at the rate of 0.46 mol per second.

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Your blue receptors will become fatigued if you stare at a blue image for too long, and the afterimage will be the opposite colour: orange.

A yellowing of the optical medium of the eye causes Xanthopsia, a colour vision impairment in which blue dominates in perception. Digoxin's inhibition of the sodium pump as well as cataract formation, which can have the effect of a yellow filter, are the most frequent causes.

A blue-green, or cyan, afterimage of the same size and form can be seen if you stare at a red item and then look at a white region shortly after.

Digibind or Digifab, also known as digoxin-specific antibody antigen-binding fragments (DSFab), are a potent antidote that binds digoxin directly.

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Magnetic field strength decreases as you get farther from the poles of the magnet.

There are three ways to change the magnetic flux across a loop: Change the strength of the magnetic field across the surface (raise, reduce).

It doesn’t matter whether you move the coil while keeping the magnet fixed or the other way around if you want to change the surface area of the loop (raise by expanding the loop, decrease by reducing the loop).

The way they move in respect to one another determines how the magnetic flux across the coil changes. The direction in which the galvanometer needle deflects depends on which side of the coil confronts the magnet when you move it. The coil ends are labelled to show which goes to the red wire and which goes to the black wire.

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If the number of protons of a carbon atom is changed from 6 to 7, such an atom will no longer be a carbon atom.

The number of protons in an atom determines the atomic number of the atom. The atomic number of an atom determines the kind of atom.

For example, lithium has 3 protons and thus, an atomic number of 3. Carbon has the atomic number of 6 because it has 6 protons.

No atom of the same element can have a different number of protons. However, other atomic such as the number of electrons and neutrons components can vary.

Atoms of the same element with a different number of neutrons are called isotopes. Ions of the same atom will have a variable number of electrons.

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The discovery of ribozymes provide evidence that life on the early earth may have been based on RNA world hypothesis.

We must think about how these mechanisms developed during evolution in order to completely comprehend the processes taking place in modern living cells.

The production of genetic information, which today requires incredibly complicated machinery and travels from DNA to protein via an intermediary called RNA, is the most fundamental of all such issues.

One theory holds that there was an RNA world on Earth before contemporary cells emerged. This is the hypothesis.

RNA was a genetic information repository and a catalyst for chemical reactions in the earliest cells.

Proteins took over as the main catalytic and structural component of cells considerably earlier in the evolutionary process than DNA, which didn’t become the major genetic component until much later. If this hypothesis is correct, the departure from the RNA world was never truly complete.

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If you exert force on an inanimate item, you will also be able to calculate the force that the object will apply to you, which will be opposing and equal to your own.

In order to accelerate a heavier (more massive) item in motion, more force must be exerted. When two objects are subjected to the same force, the smaller mass item will change speeds more quickly.

An item can alter its size or shape, begin moving, stop moving, accelerate, or decelerate as a result of a force acting on it. When two things contact, they exert pressures on one another that are identical in size but directed in the opposite direction

The action-reaction law is another name for this rule.

When just one body decides the strength and direction of the force, the force that body exerts is referred to as the "action," and the force that the other body exerts in a similar but opposite direction is referred to as the "reaction."

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The approach that makes use of rational and systematic reasoning to answer the great questions of life and existence is known as:

Socratic method.

The socratic method Worst drive from the Greek philosopher socrates.

It is a method of hypothesis elimination in that we found quickly identifying and eliminating those leads to contradictions.

This method is also known as elenctic method, socratic debate

Socrates applied his method of examination generally to find the concepts that seems to lack any concrete definition.

socratic method is also known as question answer method.

in his case this personal investigation arguments assume a form of dialogue that's why we said it question answer method.

The approach that makes use of rational and systematic reasoning to answer the great questions of life and existence is known as:

Socratic method.

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Option C: A semiconductor device containing transistors, capacitors, and resistors is called an integrated circuit.

The semiconductor device known as a transistor is used to switch or amplify electrical impulses.

One of the fundamental components of contemporary electronics is the transistor. It is made of semiconductor material and typically has at least three terminals for connecting to an electronic circuit.

The current flowing through another pair of the transistor’s terminals is controlled by the voltage or current provided to one set of those terminals.

A transistor can magnify a signal because the regulated (output) power can be greater than the controlling (input) power. Although many more transistors are found embedded in integrated circuits, some are packaged individually.

The first field-effect transistor was developed in 1947 by American physicists John Bardeen and Walter Brattain while working for William Shockley at Bell Labs.

The concept of a field-effect transistor was first proposed by the Austrian-Hungarian physicist Julius Edgar Lilienfeld, but it was not possible to actually build a working device at that time. The three received a shared 1956 Nobel Prize in Physics for their achievement.

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Parameter, because the data set of all 843 animals in a zoo is a population.

The population of all animals in the Zoo is 843

Proportion = 8%, which is the ratio regarding the population. So 8% is populaton proporiton, i..e Parameter .

A zoo, short for the zoological garden, is a place where animals are kept in enclosures, cared for, presented to the public, and occasionally bred for conservation efforts. The phrase zoological garden refers to zoology, the study of animals. It is also used to refer to an animal park or menagerie. In the United States alone, over 181 million people visit zoos every year. The goal of the modern zoo, which first appeared in the 19th century in the United Kingdom was to entertain and inspire the public by offering scientific inquiry and later educational exhibits. The London Zoological Gardens, which was opened to the public in 1847 after being opened for scientific study in 1828, is where the abbreviation "zoo" first appeared.

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Its nucleus has eleven protons.

The nucleus of it has 12 neutrons.

The nucleus is surrounded by 10 electrons.

Net charge, proton (+1), and electron charges are used to calculate the number of electrons (-1).

Calculated from the atomic number of 11 and the mass number of 23, are 12 neutrons.

What are mass number and atomic number?

The total number of protons or electrons in an element is known as its atomic number. Therefore, using the atomic number to distinguish one element from another is helpful. The total number of protons and neutrons in an element is known as the mass number.

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Question:

An atom of sodium-23 (Na-23) has a net charge of +1. Identify the number of protons, neutrons, and electrons in the atom. Then, explain how you determined the number of each type of particle. Use the periodic table to help you.

Work input is required in each cycle w = 208j

Here can explain as ,according to the law of conservation of energy , the total heat given off the surrounding by a refrigerator is equal to the work done by the refrigerator and the heat removed from the inside of a refrigerator .i.e. the addition of heat removed or absorbs and work done by the refrigerator is equal to the heat expelled to the room during each cycle. It can be shown as ,

[tex]Q_{h}[/tex] =[tex]Q_{c}[/tex] + [tex]W[/tex]

Where,

 [tex]W[/tex] is work input of refrigerator during each cycle.

[tex]Q_{c}[/tex] is the heat removed or absorbed by the refrigerator.

[tex]Q_{h}[/tex] is heat expelled to the room during each cycle.

Given here,

[tex]Q_{c}[/tex] =  257 j

[tex]Q_{h}[/tex] =  465 j

Therefore from above equation can be find the value of work input by the refrigerator in each cycle,

[tex]W[/tex] =[tex]Q_{h}[/tex] - [tex]Q_{c}[/tex]

w = (465 j) -(257 j)

w= 208j

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The deceleration of the rocket sled if it comes to rest in 1.1 s from a speed of 1000 km/h is  [tex]252.52\ m/s^2[/tex].

The acceleration in opposite direction is known as the deceleration. Basically the deceleration is negative value of the acceleration since the negative sign depicts its opposite in direction.

The given data:

time, t = 1.1 s

initial speed, u = 1000 km/h = [tex]\frac{2500}{9}\ m/s[/tex]

final speed, v = 0 m/s

So we will be using the equation of motion, that is,

v = u + at

[tex]\therefore 0=\frac{2500}{9} + a(1.1)[/tex]

[tex]\Rightarrow a=-\frac{2500}{9(1.1)}[/tex]

[tex]\therefore a = - 252.52 \ m/s^2[/tex]

Hence , the deceleration of the rocket is  [tex]252.52\ m/s^2[/tex].

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Proportional scale or Proportion wheel are terms used to describe the process of preparing illustrations for expansion or reduction.

What is the proportional principle?

The relationship between two or more elements in a design and how they stack up against one another is known as proportion. When there is a proper size or quantity relationship between the elements, proportion is said to be harmonic.

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Ines of latitude run from East to West and measure angular distances North or South of the equator.

The latitude defines a geographical coordinate of a location on the earth's surface and is the angular distance of that point (north or south of the equator) measured with respect to the Earth's Center. It is zero at the equator and 90 degrees at the poles. Latitude lines, often known as parallels, are imaginary lines that divide the Earth. They go east to west, although you may measure north or south. The most well-known parallel is the equator. It splits the Earth into Northern and Southern hemispheres at 0 degrees latitude. Latitude increases as you move north or south from the equator, reaching 90 degrees at either pole.

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It is a false statement i.e. drift velocity is not same in the direction as the applied force.

Drift velocity of a  current-carrying conductor can be explained as, the charges i.e. electrons do not  flow in the same direction of current. In other word, in most cases the movement of the electrons is almost random, with a small net velocity. So that , the drift velocity, in the direction opposite to the electric field.

Drift velocity [tex]v_{d}[/tex] is inversely proportional to the number of electron per unit volume of the conductor e. Therefore, the formulation can be given as ,

[tex]v_{d}[/tex] = σ E/ne

The above equation shows the drift velocity in a current carrying conductor  

where, [tex]v_{d}[/tex] is drift velocity , σ is the conductivity, E is electric force and n is number of electrons per unit volume of the conductor e.

Hence here we can say that, the drift velocity is not in the same direction as the applied force.

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The correct option is (d) 100 feet

Signal at least 100 feet before making a turn.

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2.3 grams of wood has the same energy as 1g of oil.

The majority of wood and wood waste used as fuel in the United States is used by industry. Manufacturers of paper and wood products are the biggest industrial users. They produce steam and electricity from waste from paper and lumber mills, which saves money by lowering the number of other fuels and electricity they need to buy to run their facilities.

There are numerous power plants that primarily burn wood to produce electricity in the electric power sector, and some coal-burning power plants burn wood chips along with coal to cut down on sulfur dioxide emissions. The primary purpose of wood consumption in the business sector is heating.

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Longwave radiation is the name given to the infrared component of the spectrum of radiation that Earth emits; its usual wavelengths range from 4 to 30 micrometers (0.0002 to 0.001 inch).

The electromagnetic spectrum is made up of radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays, among other types of electromagnetic radiation. The earth's atmosphere blocks out the majority of electromagnetic radiation from space, preventing most of it from reaching the planet's surface.

Visible light is electromagnetic radiation with wavelengths between 400 and 700 nm. A portion of the electromagnetic spectrum that humans can see with our eyes is the visible light or spectrum. The outside of Earth. Effectively, visible light can pass through Earth's atmosphere.

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Answer:

in this problem, we have given a card of wait. £3217 is traveling in a straight line at a speed of 60 ft/s. How much force does it require to stop the car in five seconds. So here we will use a cinematic equation. We finally, is it caused to the initial plus acceleration in two times. So finally, spirit will be zero initially 60 ft/s and exhalation. We have to find And time is five seconds. Right? So we need acceleration, Which is a cost to -60 x five. That is a cost to 12 feet per second square. That means we need acceleration in the opposite direction, so we need a force which is in the opposing direction of the motion. So this force, if we talk about the magnitude, there should be equal to mass into acceleration. So this mass of card will be weight divided by G, into exploration. That is 12 serve it of cars, and 3217, And G is 32.17 in 212. So this force in pounds is equal to £1200 in the opposite direction of motion.

Explanation:

The force required to stop the car is 5334.09 Newtons. The force is negative representing the deceleration.

The car's weight to mass:

Weight = 3,217 lb

1 lb = 0.453592 kg

Mass = Weight ÷ gravitational acceleration

Mass = 3217 × 0.453592

Mass = 1459.59 kg

The initial velocity is:

Initial velocity = 60 × 0.3048

Initial velocity = 18.288 m/s

Since the car stops, the final velocity will be 0 m/s.

The acceleration is:

Acceleration = (Final velocity - Initial velocity) ÷ time

Acceleration  = -3.6576 m/s²

The force required to stop the car using Newton's second law of motion:

Force = m × a

Force = 1459.59 × (-3.6576)

Force = -5334.09 N

Therefore, The force required to stop the car is 5334.09 Newtons. The force is negative representing the deceleration.

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The three equations for describing free-falling objects in gravitational fields are given below:

Free fall refers to the motion of a body that is at a certain height above the surface of the earth and which is allowed to fall or move vertically downwards under the influence of gravity alone.

Gravity is the attractive force with which the earth attracts objects to its surface.

Objects that are attracted to the surface of the earth by gravity are given an acceleration g, known as acceleration due to gravity.

The value of the acceleration due to gravity, g = 9.8 m/s²

The equations for describing free-falling objects in gravitational fields are given below:

where;

h = height above ground

u is the initial velocity

v s final velocity

t is time

g is to acceleration due to gravity

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