An import quota will increase the domestic price and, in the case of a large country, reduce the foreign price.
A quota is a restriction to the amount entering a rustic. With no alternate, equilibrium marketplace price within the USA will exist on the charge which equates domestic demand and home delivery, at P, and with output at Q. However, the arena price is possible to decrease, at P1, then the rate in a rustic that doesn't exchange.
An import quota is a restriction on the total quantity of imports that can be brought into a country in a given time period. It is a non-tariff barrier.
The main advantage of a quota is that it keeps the number of imports unchanged even if demand for imported articles increases.
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The National High Magnetic Field Laboratory holds the world record for creating the strongest magnetic field. For brief periods of time, their largest multi-shot pulsed magnet can produce magnetic fields in excess of 85 T. To see if such a strong magnetic field could pose health risks for nearby workers, calculate the maximum acceleration the field could produce for Na ions (of mass 3.8 * 10-26 kg) in blood traveling through the aorta. The speed of blood is highly variable, but 35 cm/s is reasonable in the aorta.Would you guess that the acceleration you found above would be dangerous for workers to be near such a large magnetic field?
Their greatest multi-shot pulsating magnet can generate magnetic properties in excess of 85 t for short amounts of time, to see if such a powerful magnetic field might.
What is a magnet, please?A magnet is any item that generates its own magnetic field and interacts with other magnetic fields. A magnet has two poles, the north pole as well as the south pole. The magnetic field of a magnet is depicted by field lines that start at its north pole but stop at its south pole.
What is in a magnet?Most permanent magnets have iron, chromium, and cobalt as their principal metals. Cobalt, nickel, and aluminium are combined to form the alloy known as Alnico.
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a sculptor is playing absent-mindedly with a large cylindrical lump of clay on a potter's wheel. this particular wheel has wonderful balance and will turn without friction when taken out of gear. the lump of clay is a uniform cylinder of mass 35.0 kg and radius 23.0 cm ; the axis of the clay cylinder coincides with the axis of the wheel, and the rotational inertia of the wheel can be neglected in comparison with the rotational inertia of the clay cylinder. the artist decides to throw ball bearings of mass 417.0 grams at the curved side wall of the turning cylinder and to watch what happens when the bearings hit and stick. before the first throw, the cylinder is turning once every 1.50 seconds ; when looked at from above, the cylinder is turning counterclockwise, so that the direction of the angular momentum of the cylinder is up. the artist throws the first ball bearing horizontally, and it impacts the clay wall at an angle of 58.0 degrees away from the normal to the curved clay surface. once the ball bearing is stuck in the clay, the cylinder is found to be turning once every 3.10 seconds , still turning counterclockwise. consider the ball bearing to be traveling horizontally before impact; the ball bearing is traveling in a plane which is perpendicular to the axis of the clay cylinder and which contains the center of mass of the clay.
The angular momentum of the ball bearing, approximately the middle of the clay cylinder, earlier than the effect into the wall of the cylinder is [tex]-46.1 kgm^2/s[/tex] and - indicates it is anticlockwise.
Here we have uniform cylinder of mass 35.0 kg and radius 23.0 cm:
[tex]m= 35.0 kg \\r = 0.23 cm\\T1 = 1.50 seconds\\T2 = 3.10 seconds\\π/T1 = 3.14 / 1.50 = 2.09\\π/T2 = 3.14 / 3.10 =1.012\\L + Iw1 = Iw2L+ 1/2 mR^2w1 = (1/2 MR^2 +mR^2)w^2\\= MR^2 π( 1/T2 - 1/T1)+ 2π mR^2/ T2\\ = 35(0.23 )^2(1.012-2.09) +2 (1.012 ) (417.0 ) (0.23)^2\\= 35 × 0.0529 ×(-1.07) +2×22.32\\= 35 × 0.056 +( -44.64)\\= - 46.1 kgm^2/s.[/tex]
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How do you properly hydrate?.
A simple way to measure your fluid balance is to look at the color of your urine. If your urine is dark and has a strong odor, you are definitely dehydrated and need to increase your water intake. If your urine is completely clear, you probably drank too much.
It usually takes about two hours for the body to fully rehydrate after drinking a significant amount of water. Water is best because you need to stay hydrated. Sports drinks like Gatorade can help athletes who need to replenish their electrolytes.
Research shows that milk is one of the best drinks for hydration better than water and sports drinks. Researchers attribute its effectiveness to milk's natural electrolytes carbohydrates and proteins. can take as little as 5-15 minutes. However, if you are dehydrated with an empty bladder it can take up to 8-9 hours before you need to urinate.
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When a 22-kg child steps off a 3.0-kg stationary skateboardwith an acceleration of 0.50 m/s2, with whatacceleration will the skateboard travel in the opposite drection?
When a 22-kg child steps off a 3.0-kg stationary skateboard with an acceleration of 0.50 m/s2, with 3.6 m/s² acceleration will the skateboard travel in the opposite drection.
Using Newton's second law of motion -
Fc = mc * ac
where Fc= force the child puts in stepping off
mc= mass of the child
ac= acceleration of the child
so,
Fc = 22kg * 0.50m/s²
Fc= 11.0 N
Then, the force on the skateboard is-
Fs= ms*as
where Fs= force on the skateboard
ms= mass of the skateboard
as= acceleration of the skateboard in the opposite direction
Fc = Fs, as the skateboard is stationary so it will feel the equal force that the child will puts in stepping off.
We need to find the acceleration of the skateboard -
as = Fc / ms
as = 11N / 3kg
as= 3.6 m/s²
since, the force is opposing the child, it would accelerate in the opposite direction.
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Particle accelerators, such as the Large Hadron Collider, use magnetic fields to steer charged particles around a ring. Consider a proton ring with 36 identical bending magnets connected by straight segments. The protons move along a 2.5-m-long circular arc as they pass through each magnet. What magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 4.0 × 107 m/s? Assume that the field is uniform inside the magnet, zero outside.
Each magnet must have a magnetic field that is 0.29 Tesla strong in order to propel protons around the ring at a speed of 4.0×10^7 m/s.
Are magnetic fields employed by particle accelerators?Particle beams are directed and focussed by magnetic fields, and particle accelerators use electric fields to accelerate and enhance the energy of the beam. The protons or electrons that need to be accelerated come from the particle source.
Use of magnets in the Hadron ColliderWith the removal of magnets from the accelerator tunnel during the past few weeks, significant initiatives have begun at the Large Hadron Collider (LHC). In total, the LHC has 1232 dipoles, which are magnets that bend the trajectory of the particles, and 474 quadrupoles, which squeeze the bunches.
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a weight suspended from a spring is seen to bob up and down over a distance of 30 cmcm twice each second. what is its frequency?
A weight suspended from a spring is seen to bob up and down over a distance of 30 cm twice each second then the frequency is 0.5 sec.
What is frequency?
"Frequency" is the term used to describe the number of waves that pass through a fixed point in a given amount of time. It also specifies the quantity of vibrations or cycles that a body in periodic motion produces in a predetermined period of time.
What is suspended?
A mass that is suspended on a spring hangs in its resting position. After being pulled below its rest position and then released, a mass starts to vibrate up and down.
Frequency(f) = 2 bobs/sec =2 Hz
Time period(T) = 1/f
= 0.5 sec
Therefore, a weight suspended from a spring is seen to bob up and down over a distance of 30 cm twice each second then the frequency is 0.5 sec.
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Why is there no liquid metallic hydrogen zone in the interiors of uranus or neptune?.
The pressure is too low for hydrogen to be metallic.
What is metallic hydrogen zone ?Hydrogen exists in a phase known as metallic hydrogen, where it exhibits electrical conductivity. Eugene Wigner and Hillard Bell Huntington made a theoretical prediction about this phase in 1935.
The layer on Saturn is smaller than that of Jupiter because Saturn does not produce the pressure required for metallic hydrogen in as much of its volume as Jupiter does, whereas Uranus and Neptune are too small to generate the pressures required for this layer.
Because they are smaller than Jupiter and Saturn, neither has the deep metallic hydrogen mantles that can be found on those planets. Uranus and Neptune are frequently referred to as Ice Giants to distinguish them from the Gas Giants, Jupiter and Saturn, because they are mostly composed of ices and lack deep hydrogen mantles.
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. find the maximum number of lines per centimeter a diffraction grating can have and produce a first-order maximum for the smallest wavelength of visible light.
14,300 lines per centimeter .The reciprocal of the shortest distance between two adjacent slits, which is the maximum number of lines per centimeter,
How much visible light has the shortest wavelength?Justification: 400 nm to 400 nm. The reciprocal of the shortest distance between two adjacent slits, which is the maximum number of lines per centimeter, can be found using the following equation.
mλ = dsin (θ)
The order of diffraction, m, is represented in this equation.
denotes the incident light's wavelength.
The separation of the two slits' centers is measured in terms of d.
The angle at which the mth order would diffract is given by,.
Utilizing the visible spectrum's maximum wavelength of 700 nm, we can determine the smallest spacing necessary to observe one full order of the visible spectrum.
d = mλ / sin (θ)
In order for sin () to be the greatest and the distance d to be the smallest,
Therefore, 700 nm is the minimum separation that would allow for the capability of detecting the full first order of the visible area spectra. Using this information, we can find the maximum number of lines per centimeter, which is the reciprocal of the number of lines per cm.
n = 1/d = 1, 430,000 lines per m, or 14,300 lines per cm.
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A rocket rises at 5 ft/s between 0 and 10 seconds. Afterwards it rises at 15 ft/s for another 15 seconds. Use one loop to calculate the rockets height at the end of the 25 seconds. Use h as the variable for height.
The rockets height at the end of the 25 seconds is 275 ft.
What is the height risen by the rocket at the end of 25 seconds?The height risen by the rocket at the end of the 25 seconds is calculated by applying the following kinematic equation.
h = h1 + h2
where;
h1 is the height risen in the first 10 secondsh2 is the height risen in the next 15 secondstotal time of motion, 10 seconds + 15 seconds = 25 seconds
h = v₁t₁ + v₂t₂
where;'
v represents velocityt represents time of motionThe rockets height at the end of the 25 seconds is calculated as;
h = (10 s x 5 ft/s) + (15 s x 15 ft/s)
h = 50 ft + 225 ft
h = 275 ft
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How fast would a light beam appear to einstein if he were traveling in the same direction at 90% of the speed of light?.
If Einstein were traveling in the same direction of a light beam at 90% of the speed of light, the light beam would be travelling at 10% of speed of light.
Speed of light, c = 3 * 10⁸ m / s
90 % of Speed of light = 3 * 10⁸ * 0.9
90 % of Speed of light = 2.7 * 10⁸ m / s
Relative speed = 3 * 10⁸ - 2.7 * 10⁸
Relative speed = 0.3 * 10⁸ m / s
Relative speed = 0.1 c = 10% of speed of light
Relative speed of one object with respect to another is the difference in speeds of both objects if they are travelling in same direction. Relative speed of one object with respect to another is the sum of speeds of both objects if they are travelling in opposite direction.
Therefore, if Einstein were traveling in the same direction of a light beam at 90% of the speed of light, the light beam would be travelling at 10% of speed of light.
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5. in theory, relative to the equilibrium position, where is the mass when its acceleration is at its maximum? (10 points)
The mass is at the position of maximum displacement, when its acceleration is at its maximum
Acceleration is the rate of change of velocity with respect to time.
Also it can be defined as the maximum capacity of a vehicle to gain speed.Its SI unit is m/sec².It can be calculated by using the three equations of motion.According to the theories related to the equilibrium position, at the position of maximum displacement, the force is greatest and points toward the equilibrium position, the velocity (v) of the mass is zero, its acceleration is maximum, and the mass changes direction.
And therefore the mass in the extreme position will have maximum acceleration.
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a bucket of water can be whirled in a veritcal circile without water spilling out, even at the top of the circle when the bucket is upside down. explain why this is case?
A bucket of water can be whirled in a vertical circle without water spilling out, even at the top of the circle when the bucket is upside down, this is because there is a centrifugal force acting on the water that is away from the center and opposite to the gravitational force (mg).
A centripetal force is a force acting on an object in a curvilinear motion toward the axis of rotation or center of curvature.If the gravitational force (mg) is greater, the water is poured out, but if the centrifugal force is greater, then water from the bucket will not spill.
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Here is my question.
A ball is thrown vertically upward from the surface of theearth. Consider the following quantities:
1. the speed of the ball. 2. The velocity ofthe ball 3. The acceleration of the ball
Which of these is (are) zero when the ball has reached themaximum height?
a. 1 b. 2 only c. 1 and 2 d. 1 and 3 e. 1,2, and 3
Please tell my why when you have the answer.
A ball is thrown vertically upward from the surface of the earth. both velocity and speed will become zero at highest point. so correct option is c. 1 and 2
what is velocity and speed ?Speed is a scalar quantity and velocity is a vector. Speed only determines the magnitude that is how fast is a body moving whereas velocity determines the direction also that is in which direction the body is moving. Speed is the rate of change of distance whereas velocity is the rate of change of displacement.
Velocity is a measure of how fast something moves in a particular direction. To define it needs both magnitude and direction.
At highest point acceleration is not zero because we have acc due to gravity acting downwards.But since velocity and speed is zero the ball reaches the ground back
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work through the interactive physiology 2.0 presentation on cardiac cycle. the pressure and volume curve during the cardiac cycle presented below applies to an individual with a resting heart rate of 75 bpm and a blood pressure of 120/80 mmhg . chronic hypertension (high blood pressure) is a common medical condition which has direct effects on the heart during the cardiac cycle.
Cardiac cycle is the term used to describe a complete heartbeat of a mammalian heart, which typically consists of sequential alternating contraction and relaxation of the atria and ventricles. This action results in oxygenated blood flowing unidirectionally (in one direction) throughout the human body.
There are typically two stages to the cardiac cycle;
The ventricles are relaxed and filled with oxygenated blood during diastole.
Systole: During this stage, the muscles contract, causing oxygenated blood to be forced into the atria.
When the atrium contracts, ventricular pressure, which is produced when the cardiac cycle occurs, is normally higher than atria pressure.
Here, in graph 3,
The systolic blood pressure is 140 mmHg.
This corresponds to the aortic pressure and also the peak pressure in the ventricle during the ejection phase.
The peak ventricular pressure, aortic pressure are 140 mmHg.
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True or False a stranded conductor with the same circular-mil rating of a solid conductor has a greater surface area and flexibility than the solid conductor.
It is true that a standard conductor with the same circuit-mil rating of a solid conductor has a greater surface area and flexibility than the solid conductor.
A standard conductor consist of many thin wires of small cross-sectional areas called strands, because of this they can be coiled easily to transport current over long distances. Moreover, the flexibility of the standard conductor increases as the number of strands increase.
This standard conductor has better conductance than the solid conductor because the individual wires together have a greater surface area. This standard conductor is formed by twisting the strands to form layers. This process is called stranding.
The centre of the standard wire is made of steel strand that gives high tensile strength to the conductor and hence is more flexible along with having more surface area than the solid conductor.
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when a ping pong ball rolling with a speed of 3.0 mls collides with a bowling balla t rest, the ping pong's speed after the collision will be close to
When a ping pong ball rolling with a speed of 3.0 m / s collides with a bowling ball at rest, the ping pong's speed after the collision will be close to 3 m / s
Let the ping pong ball be 1 and bowling ball be 2.
A ping pong ball weighs 2.7 g and a bowling ball weighs 2.85 kg
m1 = 2.7 g = 0.0027 kg
m2 = 2.85 kg
u1 = 3 m / s
u2 = 0
According to law of conservation of momentum,
m1 u1 + m2 u2 = m1 v1 + m2 v2
Ping pong ball's mass is so less compared to a bowling ball's mass. So the bowling ball will still remain at rest after collision.
v2 = 0
( 0.0027 * 3 ) + 0 = ( 0.0027 * v1 ) + 0
v1 = 3 m / s
Therefore, when a ping pong ball rolling with a speed of 3.0 m / s collides with a bowling ball at rest, the ping pong's speed after the collision will be close to 3 m / s
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1. what is the speed limit in this situation? what speed law might make driving at the posted speed limit illegal?
Every state has a fundamental speeding rule.
According to the fundamental speed law, you must always adjust your speed to the current circumstances and any potential hazards, regardless of State statutes and/or posted speed limit signs.When the road is slick or you pass through an intersection without slowing down, a policeman might determine that you are moving too quickly for the circumstances.You should always slow down when approaching curves, the top of hills, or intersections where you can't see the entire road ahead of you.When traveling at higher speeds, your vehicle travels a greater distance while you are responding to a problem, which reduces your margin for error.
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2hbr consider the reaction: using standard thermodynamic data at 298 k, calculate the entropy change for the surroundings when 1.57 moles of react at standard conditions.
The entropy change for the surroundings when 1.57 moles of react at standard conditions is 62.436 kJ.
The value for standard molar entropy of formation for the reactants and products are :
ΔHf° (H2,g) = 0 kJ/mol
ΔHf° (Br2, l) = 0 kJ/mol
ΔHf° (HBr, g) = -36.3 kJ/mol
ΔH° (reaction) = sum of molar enthalpy of products-sum of molar enthalpy of reactants.
For the given reaction,
ΔH° (reaction) = [(ΔHf° (H2,g) + ΔHf° (Br2, l)]-[2ΔHf° (HBr, g)] = [0 + 0- (2*(-36.3))] = 72.6 kJ/mol
This means when 2 moles of HBr (g) reacts the enthalpy change for reaction is 72.6 kJ/mol, so when 1.72 moles of HBr (g) reacts the enthalpy change is [(72.6/2)*1.72] i.e 62.436 kJ.
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why are the electric field lines of force perpendicular to the surfaces of conductors in an electrostatic situation?
Due to the unbalanced nature of this force, surface currents, or the movement of charges, will result. Therefore, the electric field must emerge perpendicular to surfaces to prevent this.
What is an electrostatic?The equilibrium would be broken if there were an electric field component parallel to the conductor's surface, which would force the electric charge to travel along the surface.
There is never an electric force component that is directed parallel to the surface of an item, whether it has a symmetrical shape or not. The electric field and force acting on an object are both always perpendicular to its surface.
The requirement that the electric field be perpendicular to any conductor's surface is one of the laws governing static electric fields and conductors.
Equipotential surfaces are always parallel to the field's direction.
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in this unit, we described how to use quadrature to find the distance from the sun to mars, and greatest elongation to find the distance from the sun to venus. which two of the following statements about these methods are wrong?
Before the invention of the telescope, these methods, quadrature and greatest elongation, were not particularly practical. Furthermore, the greatest elongation approach would be applicable to find the distance from Sun to Mars.
In astronomy, qudrature is a position in which two celestial bodies (such as the moon and the sun) are 90 degrees apart as seen from Earth. the procedure of determining a square with an area equal to a particular area.
In astronomy, elongation is the angular distance in celestial longitude that separates the Moon or a planet from the Sun. The greatest elongation achievable for the two inferior planets (those closer to the Sun than the Earth) is roughly 48° for Venus and about 28° for Mercury.
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two masses are suspended by cord that passes over a pulley with negligible mass. the cord also has negligible mass. one of the masses, m1, has a mass of 5.0 kg and the other mass, m2, has a mass of 3.0 kg.
98 N provides the system's vertical support. [tex]Fnet=Fg^{1} =Fg^{2}[/tex],
[tex]Fnet=g(m₁+m₂)[/tex][tex]Fnet=9.8(7+3), =98 N[/tex],
What is an example of mass?The volume of matter that makes up any item or body is best referred to as its mass. All of the objects we perceive have mass. There is mass in objects like tables, chairs, beds, footballs, glasses, and even air. As a result, every object has a mass, which determines whether it is light or heavy.
What unit of mass do we use?Scientific digital balances or beam balances, including triple beam balances, are a few examples of different sorts of balances. Grams or kilograms are the two metric benchmarks for mass that are often used. Modern digital mechanical spring scales are usually used at home to measure mass.
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