which imaging modality places time of flight information on the x-axis and echo amplitude on the y-axis?

Collecting the low frequency data points in k-space at the start of the scan is known as centric.

k-space represents the spatial frequency information of an object in two or three dimensions. k-space is defined by the space covered by the phase- and frequency-encoded data. The relationship between k-space data and image data is the Fourier transform.

A wave is characterized by its wavelength (λ), the distance between two corresponding points or consecutive peaks. Wavenumber (k) is simply the reciprocal of wavelength and is given by the equation k = 1 / λ Therefore, the wavenumber (k) is the number of waves or cycles per unit path.

The amplitude of the frequency encoding gradient determines how much k-space is filled left to right or left to right. This determines the size of pixels in the frequency direction.

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The answers include the following:

Thus is referred to as the physical property of matter that causes it to experience a force when placed in an electromagnetic field. We should also note that like poles repel and unlike poles attract.

When the styrofoam is rubbed, it becomes negatively charged which when placed in contact with another neutral charge will result in the repulsion. In the case in which the unrubbed side of the styrofoam is placed near a neutral charge there will also be repulsion.

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The weight of the large block of stone is 300 Newton. The result is obtained by dividing the gravitational potential energy by the height.

Gravitational potential energy is the energy stored in an object due to its position in a gravitational field. GPE can be expressed as

PE = mgh

Where

Given

How much does it weight?

The weight of an object is the mass times the acceleration of gravity.

W = mg

So, with the GPE equation, the weight is

PE = mgh

PE = W × h

4500 = W × 15

W = 4500 ÷ 15

W = 300 Newton

Hence, the weight of the large block of stone is 300 Newton.

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The following formula can be used to determine an object's density if it is spherical.

ρ = 3/4 x π x r³

Here, r denotes the spherical object's radius.

and is a constant in mathematics with the value 22/7.

Assume that the object's initial diameter is d.

As a result, it will have a radius of = d/2 = 0.50d.

Let's enter this value and calculate density as 1.

ρ₁ = 3/4 x π x (r)³

ρ₁ = 1/2 x 22/7 x (0.5d)³

The object is currently being compressed so that its diameter is reduced to a fourth of what it was.

The object's new diameter would be d/2 = 0.50d.

The new radius would be 0.50d/2 = 0.25d as a result.

Find the new density 2 now.

ρ₂ = 1/2 x 22/7 x (0.25d)³

Compare numbers 1 and 2 now.

3/4 x 22/7 x (0.25d)3 divided by 3/4 x 22/7 x (0.5d)3 equals 2/1.

1/2 and 22/7 can be canceled here.

ρ₂/ρ₁ = (0.25d)³ / (0.5d)³

d is terminated.

ρ₂/ρ₁ = 0.125

ρ₂ = 0.125 ρ₁

The original density is 1, and the revised density is 2.

Since its new density would be 0.125 times that of its original, we can conclude that.

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Average net force that the track has applied to the car during 10.0 sec is 3100 Newton.

In the given question we have,

mass of testing Car = 1550 kg

initial velocity of car on test track = 10.0 m/sec

final velocity of car on test track = 30.0 m/sec

Net force that track has applied to car (F) = m × a

where m ----> mass of car

a ----> acceleration

firstly, we shall find out the value of acceleration.

Using the relation formula between initial velocity, final velocity and acceleration

v - u = at

where, v---> final velocity

u---> initial velocity

a---> acceleration

t-----> time

given , v = 30m/sec , u= 10m/sec , t = 10 sec

10× a = 30 - 10 = 20 => a = 2m/sec²

So, Net force = mass × acceleration

F = 1550×2 = 3100 Newton

Hence, the net force applied on car during 10.0 sec interval is 3100 Newton.

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An electron moving north will slow down and eventually reverse its direction if it enters an electric field that points north.

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Electricity costs of the system at $0.08 per kwh for a day is $153.9

Power refers to the rate of work. It is work done per unit of time. The SI unit for power is the watt (W), which is the joule per second (J/s).

Power = Work / time

P = W / t

One kilowatt hour is said to be one thousand watts sustained for one hour i.e. KWh = (Watts × Hours) ÷ 1,000

For the given case,

Power = 80,176 watts

Rate = $0.08 per kwh

kWh = (watts × hrs) ÷ 1,000

kWh = (80,176 × 24)

= 1924.224 kWh

Total cost of the day is = 1924.224 × 0.08

= $ 153.9

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The magnetic field will not be produced by a) stationary electric charge

Any stationary charge in the system will not produce any magnetic field because it will not affect both the magnetic and electric fields. Thus it will not be able to produce any effect on the magnet. whereas in all other options like moving electric charge, electric current, electromagnet, current carrying solenoid, there will be the movement of the charges, which will produce the magnetic field because it will affect both the magnetic and electric field in the system and It will able to produce an effect on the magnet

Thus, the magnetic field is not produced in stationary electric charges.

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The magnitude of the magnetic field that is required in which the coil should rotate in order to produced required EMF is 0.09T.

The EMF induced in a rotating coil is given by the relation,

E = NBA(2πf)

Where,

E is the EMF induced,

N is the number of turns,

B is the magnetic field,

A is the area of the coil,

f is the frequency of the generator.

The frequency is given to be 60Hz, the EMF induced is 5145V, the number of coils is 160 turns and the area of the coil is 0.94m², putting the values,

5145 = 160 x B x 0.94 x 2 x 3.14 x 60

B = 0.09 T.

So, the magnitude of the required magnetic field is 0.09T.

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The angular acceleration (in si unit) if there is an opposing frictional force of 30 n exerted 0.16 m from the axis is 29.5 rad/s²

Torque , t = force × perpendicular radius= 165 × 0.23=37.95 Nm

moment of inertia of disk = 0.5MR²

T=I*∝

37.95=0.5×73×0.23∝

∝=29.56 rad/s²

Net torque Tn=37.95-30*0.016=37.4

Tn=0.3MR²∝

37.95=0.5×73×0.23∝

∝=29.5 rad/s²

The term "angular acceleration" also applies to the angular acceleration. It is a quantitative way of expressing how quickly angular velocity changes over time. The change in angular velocity that a spinning object experiences per unit of time is expressed quantitatively as angular acceleration, also known as rotational acceleration. It is a vector quantity that has two distinct directions or senses as well as a component of magnitude. The angular acceleration, commonly denoted by the symbol and expressed in radians per second per second, is the time rate of change of the angular velocity.

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The correct answer is option C.

The atmosphere of Saturn appear to have only half the helium content of Jupiter because Saturn is so much colder, helium does not show up as strongly in its spectrum.

The planet Saturn is a giant ball of gases including hydrogen, helium and methane. All these gases make up a thick atmosphere of the planet.

In general, the concentration of hydrogen is about 96.3%, helium 3.25% and methane 0.45%.

Clouds on Saturn are composed of ice crystals of ammonia and the temperature is around -400F which is much colder then Jupiter.

Thus, atmosphere of Saturn appear to have only half the helium content of Jupiter because Saturn is so much colder.

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However, some people in many regions of England claim that King Arthur is still alive and has only been transferred by the will of our Lord Jesus to another location. They also assert that he will return and claim the holy cross.

What a name is King Arthur

He was a warrior, a knight, and a king who defeated giants, witches, and other creatures while leading a group of brave adventurers on numerous perilous journeys. He is renowned for bringing the peoples of his realm together and for his Knights of the Round Table. Even though he met a horrible end, he is still revered and honored today in every country. Although some historians suggest that King Arthur was a real warrior who led British armies against Saxon invaders in the sixth century, historians cannot corroborate his existence. Up until his son Mordred reveals the relationship between his queen and best friend, Arthur continues to be a decent and honourable king. Throughout all of these tales, Guinevere is either kidnapped by a villainous lord and must be freed, or other ladies are in need of a brave knight's help

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The minimum number of steps visible on the escalator at any given time is 150.

Let's assume that the escalator is moving upward at a constant rate, so that the distance traveled by al in one unit of time is equal to three times the distance traveled by bob in one unit of time, which means that al will take three times as many steps as bob does.

Let's say that al walks down 50 steps per unit time, and bob walks up 25 steps per unit time. We know from our earlier assumption about constant speed that al will take three times as many steps as bob does, so if al walks down 50 steps per unit time, then bob walks up 75 steps per unit time—but we also know that there are 150 total visible steps on the escalator at any given point in time.

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Julie left a single mark on the sidewalk, and that mark has served as a starting point for me to track the snail's movement. Hence, option D is correct.

In broad terms, a snail is a shelled gastropod. The name is most commonly used in reference to land snails, that are pulmonate gastropod mollusks. However, the majority of the Gastropoda molluscan—which have coiled casings big enough for the animal to completely retract into—are also referred to as snails by their popular name. When used in this broad sense, the word "snail" refers to many different kinds of freshwater and marine snails, as well as land snails.

The distance traveled has been calculated using the reference point represented by the line that has been drawn across the sidewalk. So, choice D is the right one.

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Your question is incomplete, your question probably is :

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a

single mark on the sidewalk next to the snail.

What will Julie use the mark for initially?

determining how fast the snail moves

acting as a standard unit of measure

determining the displacement of the snail

O acting as a reference point for detecting motion

The force needed to keep a 2600-pound car from skidding on a curve of radius 650 at is 640 pounds.

The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed.

The same force would keep the same car from skidding on a curve of radius at , because:

1) The force is inversely proportional to radius. If one goes up, the other goes down.

2) The force is jointly proportional to weight and square speed. If one goes up, so does another; if one goes down, so does another.

3) 1600 pounds will keep a 2600-pound car from skidding on both curves--the force does not depend on which curve you're talking about!

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The acceleration of the wheelbarrow is 0.621 m/s^2 .

There will be equal force applied on both side, in that case the object will be having zero motion and zero acceleration.

But in the case when there is more force applied in one direction than other side force then there will be acceleration on the object.

This acceleration is equal to the ΔF/m.

where ΔF is the difference of the forces applied on the both direction

and m is the total mass of the object.

According to the question, we have m = 37Kg

ΔF = (36-13) n = 23 n

so a = 23/37 = 0.621 m/s^2

so acceleration of the wheelbarrow is 0.621 m/s^2 .

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In order to lift a bucket of concrete, you must pull up harder on the bucket than the bucket pulls down on you this statement is true.

According to Newton's first law, unless pushed to alter its condition by the operation of an external force, every object will continue to be at rest or in uniform motion in a straight line. Inertia is the propensity to resist changes in a condition of motion.

The motion of an item is related to the forces operating on it by Newton's equations of motion. According to the first law, until a force acts on an item, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration.

Newton's first law states that unless a net external force acts on an object, it will either remain at rest or continue moving at a constant speed.

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The tension must a rope withstand is 1296.42N

Given- Mass m=1054 kg

acceleration= 1.23 m/s²

To find Tension generated .

Principle -Tension is the reaction of the action applied that means due to application of mass along with acceleration there is a urge towards earth and to substantiate it or to form a couple the reaction occurred is tension that equalises the role of force,

Mathematically , Force = ma ⇒Tension

F=T

T=ma

Calculations & Answer - T= 1054 x 1.23

= 1296.42N

Since T=F so unit of force and tension will  be same.

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The formula for total mechanical energy at maximum displacement (amplitude) is

ME = KE + PE = 0 plus (1/2)

*k*A^2 = (1/2)*k*A^2

Now, mechanical energy is constant during the displacement of a mass on a spring.

Now, when x equals A/2, or when displacement is equal to half of amplitude, then

PE = (1/4)*(1/2)*k*x2 = (1/4)*(1/2)*k*(A/2)*2

PE = (1/4)*ME

PE = ME - (1/4)*ME - KE = ME

KE = (3/4)*ME

KE/ME = 3/4 = 0.75

Part B.

When KE = PE, displacement is required.

If this event happens at 'x' displacement, then at this point we are aware that

ME = KE plus PE equals (1/2)*k*A2.

Because KE = PE

ME = PE + PE = (2*PE)*k*A2

PE = (1/4)*k*A^2

PE = (1/2)*k*x2 at x displacement, thus

(1/2)*k*x^2 = (1/4)*k*A^2

x^2 = (1/2)*A^2

(x/A)^2 = 1/2

sqrt(1/2) = 0.7071 for x/A

Using two reliable figures

x/A = 0.71

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The kinetic energy of the baseball thrown by the pitcher is 103.8 Joules.

Th kinetic energy of any moving body is given by,

K = 1/2mv²

Where,

K is the kinetic energy,

m is the mass of the body,

v is the speed of the body.

Here, the mass of the baseball is given to be 0.145 kg and the speed of the baseball is given to be 42.5 m/s.

Putting all the values accordingly,

K = 1/2(0.145)(42.5)²

K = 1/2 x 0.145 x 1806.25

K = 103.8 Joules.

So, the kinetic energy of the baseball is 103.8 Joules.

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To find the stiffness constant of the cord, learn gravity and force.

What is gravity?

By means of gravity, a planet or other body pulls objects toward its center. All the planets are maintained in their orbits around the sun by the force of gravity.

What is force?

An object with mass changes its velocity in response to a push or pull. Force is an external agent that has the power to alter a body's resting or moving state. It has a size and a movement.

Enot=Eat start= Ug =mgh

=(65kg)(10m/s²)(60m)

=39,000J

Eat lowest point =Usp+Ug

=1/2K(Δy²)+mgh

=1/2k(39.5m)² + (65kg)(10m/s²)(0.5m)

from conservation of energy, solve to get K= 49.6N/m.

Therefore, the energy function can be written ( for y<40).

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Most ground water will move rather slowly when compared to how fast water moves in streams.

The statement is true

Water quantity both affect flow. It is significant because it affects the habitats of living things in the stream as well as the water quality. Small streams are less able to dilute and degrade contaminants than large, fast running rivers, which can receive pollution releases with little impact.

To "flow" is to move in a stream, just like water. As air circulates, the word "flow" also signifies to move. Flow is a noun that refers to motion that resembles a stream. The noun and verb 'flow' can be used in a variety of various contexts. Something flows when it moves like a stream of water.

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A scientific theory should make testable predictions and if those predictions are found to be incorrect the theory should be dismissed.

He argued that science advances best through the use of deductive reasoning, known as critical rationalism, as its primary emphasis. Popper coined the term critical rationalism to describe his philosophy. Popper rejected the empiricist view that basic statements are infallible.

Karl Popper was a scientific realist against his will. Despite his own limitations regarding the forms of acceptable scientific reasoning and the extent of empirical evidence, he advocated a very real conception of scientific goals and outcomes. A significant contribution stems from his rejection of induction in empirical science.

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Lying on a bed of nails is one of the most traditional illusions used by magicians. At first glance, it appears like the person lying in the bed of nails will have a hole pierced through their back.

Lying on a bed of nails is one of the most traditional illusions used by magicians. At first glance, it appears like the person lying in the bed of nails will have a hole pierced through their back. According to physics, a force exerted downward will be dispersed across the nails, lowering the force that each nail applies individually. The force that each nail exerts decreases with the number of nails.

Given

m=79.2 kg The mass of the Physics Professor

n=1950

The Number of Nails in the Bed of Nails

Solving for the weight of the professor applied to the board of nails

W=mg

W=(79.2 kg)(9.8 ms2)

W=776.16N

Solving for the force applied by the individual nails.

Fn=Wn

Fn=776.16 N1950Fn=0.398

N Therefore each nail applies 0.398 N of force.

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A proton will accelerate at 1.27 109 m/s2. The rate of a change in velocity is called acceleration.

It is the kind of field that produces magnetic force. use a magnetic field to assist. The field that is sensed around a moving electric charge is how the magnetic force is measured.

The information provided in the issue is;

What is a proton's acceleration equal to?

The speed is 8.0 m/s, therefore v.

B = 1.8 T is the magnetic field.

The centripetal force and the megnetic force are equivalent;

qvB =m v/r

ac = 1.6 * 10 -18* 9.5* 1.8/1.67810-27

=1.27*10m/s

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The scatter plots of log (length) vs. log (time) have a linear relationship, while the residual plot lacks any discernible patterns.

Learn to identify situations that can be described by power models, inverse power models, and quadratic models in the "Power Models" unit. You'll also learn to compare patterns in tables and graphs of models with the formulas y = ax2, y = ax3, y = a/x2, y = a/x3, and y = ax2 + bx + c.

They also start to grasp the concept of rate of change within the context of these models. Here, some specific abilities are developed, such as simplifying exponential and radical expressions and solving quadratic equations graphically. The terms and ideas of direct and inverse variation are also taught.

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The overall momentum of a system is constant.

Hence, The time taken to get to the shuttle is  4.49  min.

according to  the linear momentum conservation theorem, we have:

M1 V1 + M2 V2 =M1 V[tex]_0[/tex]1 + M2 V[tex]_0[/tex]2.

the initial velocity is Zero

then,

M1 V1 = - M2 V2

V1 = ( - M2 V2)/ M1

V1 = -  [tex]\frac{0.767 *12}{54.8}[/tex] = - 0.168 m/s

That is 0.168 m/s in the opposite direction of the camera.

the time taken to get to the shuttle is given by:

t = d/v

t = [tex]\frac{45.3}{0.168}[/tex] = 269.64 s

[tex]t_{min} =\frac{269.64}{60}[/tex] = 4.49 min.

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e) little cratering, consistent with a young surface.

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A binary star system consists of two stars that are gravitationally sure and orbit each other. Binary stars in the night time sky appear as a single object to the bare eye, but telescopes frequently remedy them as separate stars.

A binary stars have orbit a common center of mass. The first one star is brighter of the two, and other is the fainter (classified as A and B, respectively).

Visual binaries : A visual binary system is a binary system in which each individual star in the system can be individually resolved with a telescope. Longitudinal observations can then be made to indicate the relative positions of the members of the system. Over time, this data is collected and used to calculate star orbits. Visual binaries tend to be systems that are relatively close to us, being able to resolve individual stars.

Eclipse Binary system : Photometry is used as a third technique for detecting binary structures. the obvious value of many stars changes regularly. this could be due to one of two elements. It can be a single star that has its inherent luminosity change. Such stars are called pulsating variables . the second alternative is that it's far a binary gadget with an orbital plane that is side-on to us, inflicting the issue stars to frequently eclipse each other. Such systems are referred to as eclipsing binary structures.

Spectroscopic binaries : A binary star having components that are not sufficiently separated to be resolved by a telescope, known to be a binary only bythe variations in wavelength of emitted light that are detected by a spectroscope.

Spectroscopic binaries are seen from their line spectrum, by means of following the Doppler shift .

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A projectile is fired into a region of no air resistance the horizontal component of velocity remains constant because projectiles

A) is not acted on by any horizontal force

Velocity remain constant until unless any net external force acts on the object . While in a projectile motion , there is a gravitational force which act in downward direction . And there is no horizontal force , hence horizontal velocity remain unchanged . Velocity remains constant because projectiles

A) is not acted on by any horizontal force

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