Diathermy uses a high frequency electromagnetic current produced by a microwave device to generate heat within body tissues.
Electromagnetic radio waves with frequencies of 915 and 2456 MHz are utilized for the procedure known as microwave diathermy. Because of the specific characteristics of these waves and the size that correspond to the microwave antennas, microwave diathermy possesses two distinct qualities that can be used for the purpose of clinical benefit. The relaxing of muscles and the induction of deep heating in tissue for therapeutic purposes are two frequent applications of the technique known as diathermy. In the field of physical therapy, it is put to use to provide a heat of moderate intensity directly to the pathologic lesions that are located in the deeper tissues of the body.
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which of the six numbered features represents emission lines?
The first line represents the emission lines of the spectrum.
In the electromagnetic spectrum, a line pattern is observed. This line pattern is something that is unique for every element and it is represented by the dip in the energy gap of the electrons revolving in the atoms.
Here, in the graph pattern attached, out of the six numbered lines, the line number one represents the emission lines because the electron are releasing their energy and going back to there own ground state level.
This emission when seen on the screen, it will be observed a unique pattern of the bright lines for that particular element.
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the plot depicts the position versus time of a toy car in one dimension. during which time interval(s) is the car going backward?
The plot depicts the position versus time of a toy car in one dimension. during 4 — 6 seconds and 0—2 seconds intervals is the car going backward.
Time in PhysicsTime in physics is determined by its measurement. This measurement requires extreme precision, which leads to the requirement that time be considered a linear continuum that is indivisible and not quantized. However, with sophisticated tools, time is now measured accurately using modern atomic time standards such as TAI and UTC.
In classical/non-relativistic physics, time is a scalar quantity and the general concept used is absolute time. Meanwhile, in relativity, time is understood as something relative. In contrast, Quantum Mechanics states that in fact time may not be a central concept in quantum theory as in classical physics and there is actually no such thing as quantum time.
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a 190-pound man has a total foot imprint area of 72 in2. determine the pressure exerted by this man on the ground if he stands on both feet.\
The man on the ground would be applying 2,625 psi of pressure (pounds per square inch).
To determine this, divide the man's weight (190 lbs) by the total area of his footprint (72 in2).
190 ÷ 72 = 2,625 psi
Pressure: The amount of force delivered perpendicularly to an object's surface in relation to its area is known as pressure. Its abbreviation is "p" or "P." The IUPAC suggests using a lower-case p when referring to pressure. However, many people use the capital P. The appropriate use of P vs. p relies on the field in which one is employed, the proximity of other symbols denoting quantities like power and momentum, as well as writing style.
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an earth satellite moves in a circular orbit 769 km above the earth's surface. the period of the motion is 81.1 min. what is the magnitude of the centripetal acceleration of the satellite in m/s2?
The magnitude of the centripetal acceleration of the satellite is [tex]8.162 m/s^2.[/tex]
Centripetal acceleration: What is it?Centripetal acceleration is the term used to describe the speed of a body moving in a circular path. Since velocity is a vector quantity (it has a magnitude, a speed, and a direction), it varies as a body moves in a circular motion, causing acceleration. The circle's center is the direction in which the acceleration is pointed. Meters per second squared are used to measure centripetal acceleration. This acceleration is brought on by a force known as centripetal force, which is also pointed in the direction of the circle's center.
Given, h = 769 km
[tex]Rearth = 6.38 x 10^6m\\Rtotal = 6.38 \times 106769 \times 10^3 \\Rtotal = 4.90 \times 10^6 \\T = 81.1 \times 60 = 4866 sec \\V = 2\pi \times r \\V = 2\times 4.90 \times 10 4866 \\Linear Velocity, V = 6,324 m/s \\[/tex]
Now, the Magnitude of Centripetal Acceleration = Total
(6324)2 Magnitude of centripetal acceleration = 4.90 x 10
Magnitude of centripetal acceleration =[tex]8.162 m/s^2[/tex]
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a 1000-kg car traveling with a speed of 25 m/s skids to a stop. the car experiences an 8000 n force of friction. determine the stopping distance of the car
The required stopping distance of the car when mass, speed and force experienced are given is calculated to be 39.1 m.
The car's mass is said to be 1000 kg.
The speed of the car is calculated to be 25 m/s.
The car experiences 8000 N of frictional force.
We need to find out the stopping distance of the car.
Initially, the car's height is 0, so the potential energy of the car is zero.
Kinetic energy of the car is 1/2 × 1000 × 25² = 312500 J.
Finally, potential energy of the car is 0 and kinetic energy of the car is zero.
The work done is,
W = F d cos 180° = -8000 d
From the principle of conservation of energy,
TME i + W ext = TME f
where,
TME i is total mechanical energy initial
TME f is total mechanical energy final
W ext is work done external
After placing the values into the equation above,
312500 + (-8000 d) = 0
8000 d = 312500
d = 39.1 m
Thus, the stopping distance of the car is 39.1 m.
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calculate the amount of power supplied by the signal generator, vg1, and the amount of power dissipated in each of the two resistors in the circuit at 5 khz.
The power can be calculated by the formula P resistor = IV = I2R = / (4R).
The voltage across each resistor in the circuit can be determined using Ohm's law:
V = IR
where V is the voltage, I is the current, and R is the resistance.
This allows us to compute the power dissipation in each resistor as follows:
P = IV = I 2 R + V 2 R
We can assume that the voltage across each resistor is half of the overall voltage in the circuit since the resistors are similar. The voltage of the signal generator, vg1, is the same as the overall voltage in the circuit.
Consequently, vg1 / 2 is the voltage across each resistor.
The circuit's current can be calculated using Ohm's law:
I = V / R = vg1 / (2R)
R stands for each resistor's resistance.
You may calculate the power provided by the signal generator, vg1, by using:
IV = vg1 * I = vg12/P supplied (2R)
The power dissipation in each resistor can be calculated as follows:
P resistor = IV = I2R = / (4R)
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a 0.800 kg block is attached to a spring with spring constant 17.5 n/m . while the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 50.0 cm/s . what are
The block may move up to 19.7 cm from its resting position, and its oscillations last for a period of 2.76 seconds.
Displacement formula: What is it?The final position less the starting position is known as displacement.
The greatest displacement is:
The simple harmonic motion equation can be used to determine the block's maximum displacement:
x = A * cos (wt)
where w is the angular frequency, t is the time, and A is the amplitude. The block's starting velocity can be used to compute the amplitude:
A = v0 / w
The spring constant can be used to determine the angular frequency:
Sqrt(k / m) = w
Where k is the spring constant and m is the block's mass.
Replacement of values
A = 50.0 cm/s/sqrt(17.5 N/m/0.800 kg), and w = sqrt(17.5 N/m/0.800 kg).
w = 2.32 rad/s, with A = 19.7 cm
The maximum displacement is equal to the amplitude:
x = A = 19.7 cm
The oscillation's time scale:
The angular frequency can be used to calculate the oscillation's period:
T = 2 * pi / w
Replacement of values
T = 2.76 s = 2.32 rad/s / 2 * pi
Therefore, the oscillation's period is roughly 2.76 seconds.
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if mass of the object is doubled, what would happen to the centripetal force?
va 1500-nf capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at the rate of 38.0 mc/s at some instant in time. what will be the induced magnetic field strength 10.0 cm radially outward from the center of the plates? what will be the valuc of the field strength after the capacitor is fully charged?
After the capacitor is fully charged, the current will be zero, and the magnetic field strength will be zero as well.
Magnetic field strength, also known as magnetic intensity or magnetic field intensity, is the portion of a material's magnetic field that is caused by an external current and is not intrinsic to the material itself.
It is denoted by the vector H and is measured in amperes per metre.
The magnetic field strength produced by a charged capacitor can be calculated using Ampere's law:
[tex]\vec{B} = \frac{\mu_0 I}{2\pi r}[/tex]
where \mu_0 is the permeability of free space,
I is the current flowing through the capacitor, and
r is the radial distance from the centre of the plates.
At the instant when the capacitor is accumulating charge at a rate of 38.0 mc/s,
The magnetic field strength at a radial distance of 10.0 cm can be calculated as:
[tex]B = \frac{\mu_0 I}{2\pi r} \\= \frac{\mu_0 \cdot 38 \times 10^{-6}}{2\pi \cdot 0.1} \\= 2.41 \times 10^{-7} \text{ T}[/tex]
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what is the direction of the current, clockwise or counter-<:lockwise, that needs to flow in orderto lift the ball up along the z direction?
The magnetic field created by the current and the direction of the magnetic field relative to the direction of the magnetic force on the ball determine the direction of the current that must flow in order to lift the ball up along the z direction.
What is current?A stream of charged particles, such as electrons or ions, traveling through an electrical conductor or space is referred to as an electric current. The net rate of passage of electric charge through a surface or into a control container is monitored. Electric current refers to the flow of electricity in an electrical circuit as well as the amount of electricity flowing through a circuit. It is measured in amperes (A). The higher the ampere value, the more electricity flows across the circuit.
Here,
The direction of the current is often determined by applying the right-hand rule to the magnetic field and the direction of the force on the conductor. However, without further information on the intricacies of the arrangement and the exact orientation of the magnetic field, determining the exact direction of the current is impossible.
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as you look out of your dorm window, a flower pot suddenly falls past. the pot is visible for a time t , and the vertical length of your window is lw . take down to be the positive direction, so that downward velocities are positive and the acceleration due to gravity is the positive quantity g . from what height h above the bottom of your window was the flower pot dropped?
The height h above the bottom of your window was the flower pot dropped is = 1/2gt² - lw.
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).
Acceleration due to gravity is = g
Time taken to fall is = t
The length of the window is = lw
Hence, the height h above the bottom of your window was the flower pot dropped is
= distance travelled by the pot - the length of the window
= 1/2gt² - lw.
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true or false: if a hard magnetic material is heated above its curie temperature and then cooled back to room temperature it will regain its original permanent magnetization.
The claim that a hard magnetic material will restore its initial permanent magnetization if heated above its curie temperature and subsequently cooled to room temperature is untrue.
When a magnetic substance reaches its Curie temperature, what happens?The alignment of a material's magnetic moments is compelled into a disordered state when it reaches its Curie temperature. On the basis of the same concept, a material's magnetic strength gradually decreases when it is subjected to progressively greater temperatures.
If a magnet is heated to a high temperature, what will happen?If heated over its melting point or for an extended period of time, a magnet will permanently lose its magnetic force at a temperature of about 80 °C.
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move 2 meters east and move 4 meters west what is the distance
The person has covered a distance of 6m.
What is the difference between distance and displacement?
Distance is the total length of the path covered by an object, whereas displacement is the change in position of an object from its starting point. In other words, distance is a scalar quantity that refers to "how much ground an object has covered," whereas displacement is a vector quantity that refers to "how far out of place an object is."
For example, if an object moves from point A to point B, the distance covered is the total length of the path from A to B, whereas the displacement is the shortest possible distance from A to B in a straight line. Displacement has both magnitude and direction, while distance only has magnitude.
The distance that has been covered by the person that has been moving can be obtained from;
2 m + 4m
= 6m
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a lion can produce a roar with a sound intensity level of 114 db at a distance of 1.00 m . what is the sound intensity level at a distance of 4.00 m ? assume that intensity obeys the inverse-square law.
A lion can produce a roar with a sound intensity level of 114 db at a distance of 1.00 m . The intensity level at 4 m from the lion is 16 DB.
Though it is a unit of pressure rather than sound, the decibel, or dB, is frequently used to measure sound levels. A decibel is a logarithmic unit that expresses a physical quantity's relationship to a reference level.
The square of the distance has an inverse relationship with the decibel intensity.
I₂ = D₁²
I₁ D₂²
The sound intensity level at one meter is 114 dB.
I₂ = 1²
114 4²
I₂ = 16 Db
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a pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 0.99 m/s. what is the initial height of the bob?
the initial height of the bob of pendulum is approximately 0.9801 m
The following equation can be used to calculate the pendulum bob's initial height:
h = [tex]v^2 / 2g[/tex]
where g is the acceleration brought on by gravity ([tex]9.8 m/s2[/tex]), v is the speed of the bob at the swing's bottom, and h is the starting height.
replacing the specified values:
h = [tex](0.99 m/s)^2 / (2 * 9.8 m/s^2)[/tex]
h = 0.9801 m
As a result, the bob's starting height is roughly 0.9801 m.
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astronomers observe a typical star using a telescope and a spectrometer. they will see: a. a continuous spectrum b. an emission spectrum c. an absorption spectrum d. a doppler shift e. more than one of the above
Astronomers observe a typical star using a telescope and a spectrometer. they will see an absorption spectrum .
Absorption spectroscopy is the name given to spectroscopic methods that assess how much radiation is absorbed as a function of frequency or wavelength when it interacts with a substance. The sample takes in energy from the emitting field, or photons. The absorption spectrum is a fluctuation in the intensity of the absorption that varies with frequency. The entire electromagnetic spectrum is used for absorption spectroscopy.
An analytical chemistry instrument called absorption spectroscopy is used to find out whether a specific drug is present in a sample and, frequently, to quantify how much of it there is. Analytical applications frequently use infrared and ultraviolet-visible spectroscopy. Additionally, astronomical spectroscopy, remote sensing, and studies of molecular and atomic physics all make use of absorption spectroscopy.
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a 0.25 kg arrow with a velocity of 12 m/s to the west strikes and pierces the center of a 6.8 kg target. a. what is the final velocity of the combined mass? b. what is the decrease in kinetic energy during the collision?
The velocity is 0.43 m/s to the west and difference in Kinetic energy is 1 J.
Together, the arrow and the target have a mass of 7.05 kg.
Using the formula p = mv, and the concept of conservation of angular momentum.
.25 x 12 + 6.8 x 0 = 7.05 x v final.
3 + 0 = 7.05 v,
and v = .43 m/s to the west.
The kinetic energy measured before and after will not be the same.
The value of KE before is [tex]\dfrac{1}{2}(0.25)12^2+ \dfrac{1}{2}(6.8) (0)^2[/tex] = 18 J.
The KE afterward is [tex]\dfrac{1}{2}(7.05)(0.43)^2[/tex],
which equals 0.65 J.
The difference is about 17 J.
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if the metal is irradiated with light of wavelength 500 nm, what is the momentum of the emitted photoelectron?
The momentum of the emitted photoelectron is [tex]8\times10^{-9}m[/tex].
What is Momentum?Simply put, momentum is the quantity of motion. Since an object has momentum if it is moving and has mass, quantity may be measured in this situation. An object lacks momentum if it is immobile.
whenever you throw a ball at a person and it hits him in the face. It shows how challenging it would have been to put a halt to the situation. In the air, a baseball is swooping. There is a big truck moving. a gun of this type shot a bullet.
How do we calculate the momentum?According to the photoelectric effect, hv=W 0 +eV.
Alternatively, hc =W 0 +eV
or [tex]500 \times 10^{-9}[/tex]
[tex](6.6×10 ^{−34} )\times(3\times10^8 )\\ \\ =2.28 \times 1.6 \times 10^{-19} +eV[/tex]
or eV=0.311019, or V=0.2
V should be V0.2 in this case.
The electron's de Broglie wavelength, = V 12.2710 10
so, λ≥2.[tex]8\times10^{-9}[/tex]
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when rolled down a mountainside at 7.0 m/s, the horizontal component of its velocity vector was 1.8 m/s. what was the angle of the mountain surface above the horizontal?
The angle of the mountain surface above the horizontal is calculated to be 75°.
Velocity of an object rolled is given as 7 m/s.
Horizontal component of velocity is given as 1.8 m/s.
Drawing a triangle, V becomes the hypotenuse and Vx becomes the adjacent side. We get the formula from that image using the characteristics of a right triangle.
Therefore, cos x = Vx / V.
where, x is the angle we are calculating
The formula's cos x value is obtained by substituting the given values: cos x = 1.8 m/s / 7 m/s = 0.257.
x = cos⁻¹(0.257) = 75 degrees
Thus, the angle of the mountain surface above the horizontal is calculated to be 75 degrees.
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which of the following should be part of solving any problem in physics? select all that apply: (a) read the problem carefully. (b) draw a picture of the situation. (c) write down the variables that are given. (d) think about which physics principles to apply. (e) determine which equations can be used to apply the correct physics principles. (f) check the units when you have completed your calculation. (g) consider whether your answer is reasonable.
All the options given should be part of solving any problem in physics.
Physics problem-solving calls for a methodical and meticulous approach. First and foremost, it's critical to attentively analyze the problem and comprehend the condition presented.
A situational drawing might aid in visualizing the issue and highlighting any crucial elements. Next, it's important to note down each and every variable that the problem provides. The next step is to consider whether physics concepts are applicable to the issue and choose the appropriate equations to apply them.
Once the calculation has been completed, it is crucial to double-check the answer's units to make sure they are formatted correctly. Finally, evaluate the reasonableness of your response and make any required modifications.
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Describe the behaviour of light that enables magnifying lenses and conttact lenses to bend light rayd
The nature of light that enable enables magnifying lenses and contact lenses to bend light ray is called refraction.
What is refraction ?Refraction is an optical phenomenon causing the light ray to bend from its straight way at the edge of objects. When light passing from one medium to the other of different density, light ray will bend at the boundary of the mediums.
The measurement of this bending of light is called refractive index of the medium. Refractive index of a medium is the ratio of the speed of light in the medium to the speed of light in air.
Magnifying lenses and contact lenses bend the light ray and make the image more closer than they appear because, bending of light makes light rays seemed to be coming from the upper plane above the original.
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A 0.560 kg box slides from rest down a 4.30 m high ramp that forms an isolated system . The energy lost to friction is 1.00 J. What is the speed of the box at the bottom of the ramp? Take the bottom of the ramp as the reference level.
The speed of the box at the bottom of the ramp is 8.98 m/s.
What is speed?Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.
The kinetic energy of the box at the bottom of the ramp = (0.560 × 9.8 × 4.30 - 1.0) Joule
= 22.60 joule.
Hence, the speed of the box at the bottom of the ramp = √(2 × 22.60/0.56) m/s
= 8.98 m/s
Therefore, the speed of the box at the bottom of the ramp is 8.98 m/s.
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What happens if both the speed and radius of a circular path of a body doubled and what will be the effect of it on centripetal acceleration?
If both the speed and radius of a circular path of a body are doubled then centripetal acceleration will also be doubled.
What Is Centripetal Acceleration?The characteristic of an object moving in a circular path is known as centripetal acceleration. Centripetal acceleration is the term for any moving object whose acceleration vector is directed toward the center of the circle. The centripetal acceleration formula is as follows:
[tex]a_c=v^2 /r[/tex]
where v is the angular speed and r is the radius.
Now for the given question,
Original centripetal acceleration,
[tex]a=v^2 /r[/tex]
New centripetal acceleration,
[tex]a^{'} =(2v)^2 /2r\\\\=2v^2/r\\=2a[/tex]
Hence, centripetal accelearation is also doubled.
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what was its speed when its height was half that of its starting point? what wasa roller coaster starts from rest at its highest point and then descends on its (frictionless) track. its speed is 20 m/s when it reaches ground level.its speed when its height was half that of its starting point? 17 m/s 10 m/s 7.1 m/s 14 m/s
The roller coaster possesses only potential energy when it begins motion from rest at its greatest point, which is equal to 21.2ms2 (rounded to the next decimal point).
What is the definition of potential energy?Potential radiation is a term that stored energy that depends on the interactions between various system elements. A spring's potential energy rises when it is stretched or squeezed. A steel ball does have more potential energy if it is lifted just above ground аѕ opposed to dropping to the ground.
What three types of potential energy are there?Stones perched on a cliff's edge have potential energy. If the stones fall, the potential energy would be transformed into kinetic energy. Because they have the ability to fall to the ground, tree branches high in the tree carry potential energy. We consume chemical potential energy in our food.
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the position of a particle moving along the y-axis has a position given by . is there any time interval during which the particle is not moving?
There is no such time interval when the particle is not moving during its motion in the y-axis.
The position of the particle in the y axis is give by the relation,
y = 0.20+8t-10t²
Differentiating with respect to time,
dy/dt = 8-20t
Now, we know,
dy/dt = speed
So,
Speed = 8-20t
For not moving the particle should have zero speed at that moment, so putting speed = 0,
8-20t = 0
8 = 20t
t = 20/8
t = 2.5 second
Now, here we are asked of any "interval" now any specific moment where the particle is at rest, because speed is only zero at only one moment, there is no such interval of zero speed, also, it might be possible that at 2.5s the particle is turning so we cannot be sure.
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Complete question - The position of a particle moving along the y axis has a position given by y = 0.20+8t-10t². Is there a time interval during which the particle is not moving?
discuss the physical origin of the quantization of energy of a particle confined to moving inside a one-dimensional box or on a ring.
We can model this as an infinite square well in which the particle's potential energy inside the box is zero and the potential energy outside is infinite. Therefore, the particle's quantum number is 4.86 × 10⁻²
The expression of wave function for a particle in one dimensional box is given as
φ(x) = ( √2/L ) sin ( nπx/L )
now we input our given figures, the limit of the particle to find it within the center of the box is
xₓ = L/2 + 20% of L/2
xₓ = L/2 + (0.2)L/2
xₓ = 3L/5
And the lower limit is,
x₁ = L/2 - 20% of L/2
x₁ = L/2 - (0.2) L/2
x₁ = 2L / 5
The expression for the probability of finding the particle within the center of the box is
P = ∫ˣₓ₁ ║φ(x)║² dx
P = ∫ ³L/⁵ ₂L/₅║(√2/L) sin ( nπx/L)║²dx
= 2/L ( ∫ ³L/⁵ ₂L/₅║sin ( nπx/L)║²dx
= 2/L ( ∫ ³L/⁵ ₂L/₅ (( 1 - cos ( 2πn x/L)/2) dx)
The particle is in its first excited state, then
n =2
Then calculate the particle's quantum number as follows;
= 2/L ( ∫ ³L/⁵ ₂L/₅ (( 1 - cos ( 2π(2)x/L)/(2)) dx)
= 1/L ( ∫ ³L/⁵ ₂L/₅ (( 1 - cos ( 4πx/L)/2) dx
= 1/L ( x - (L/4π)sin (4πx/L)) ³L/⁵ ₂L/₅
= 1/L ((3L/5) - (L/4π) sin (( 4π(3L/5)/L)) - (( 2L/5) - (L/4π)sin ( 4π(2L/5)/L)))
= 1/L ( L/5 + L/4π (sin(8π/5) - sin ( 12π/5)))
Use the trigonometric formula to solve the above equation
Sin A – sin B = 2sin ( A-B/2) cos (A+B/2)
Calculate the particle's quantum number as follows
P = 1/L ( L/5 + L/4π (sin(8π/5) - sin ( 12π/5)))
= 1/5 + 1/4π ( 2sin( (8π/5 -12π/5 ) / 2 ) cos ( (8π/5 + 12π/5) / 2 ))
= 1/5 + 1/2π ( -sin(2π/5) cos2π
= 1/5 - 1/2π ( sin (2π/5)(1))
= 0.0486 (10⁻²)(10²)
= 4.86 × 10⁻²
Therefore, the particle's quantum number is 4.86 × 10⁻²
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When light is transmitted or reflected, is any energy absorbed?
Yes, when light is transmitted or reflected, some energy can be absorbed by the medium or the surface it encounters, reducing the intensity of the light. This is why materials can appear to be colored or opaque.
How is reflection an important aspect for seeing?Reflection is an important aspect of seeing, as it enables us to see objects by allowing light to bounce off of them and reach our eyes. Light from a source reflects off its surface, and then enters our eyes, allowing us to perceive the object and its location in space.
What are the factors that can damage our eye?Eyes can be damaged in a variety of ways like physical trauma, UV exposure, Infections, Degenerative conditions, chemical exposure, etc.
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Most electromagnets have a core?
A) Why is iron usually used for the core
B) What would happen if you used steel instead
Iron has strong ferromagnetic properties and that is why it is used as core in electromagnets. However, iron can easily be demagnetized but steel cannot. Steel forms permanent magnet.
What is an electromagnet ?An electromagnet is a material which can form a magnetic field in the presence of an electric field. The magnetic field strength depends on the nature of the material as well the strength of the electric field.
Iron is a metal exhibiting strong ferromagnetic properties. The magnetic field lines can align along the applied field and it can be lost when the applied field is removed.
Therefore, iron can be demagnetized when the switch is off. If we use steel instead it would be very difficult to demagnetize and will form a permanent magnet.
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T/F the anti-lock brake system engages every time the driver applies the brakes.
Every time the driver presses the brakes, the anti-lock brake system activates. ABS was initially created for boats. If the brake pulsates while ABS is active.
When the driver applies the brakes, does the anti-lock brake system activate?
Every time the driver presses the brakes, the anti-lock brake system activates. When ABS is engaged, a grinding sound is typical. ABS enables you to brake as hard as possible while still steering. Your ABS will not function properly if a warning light illuminates.
What are the functions of anti-lock brakes?By giving your tires some traction again in an emergency, anti-lock braking systems (ABS) assist you in steering. How It Works: aids in preventing wheel locking, potentially enabling the motorist to maneuver to safety. What It Isn't Able To Do The stopping distance may not be shortened; the pedal may shake or push back; this is okay.
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A circuit with a 70 V battery, a 55 Ω resistor, a resistor with 0.2 A across it, and another 55 Ω resistor in series. What is the resistance of the unknown resistor?
Answer:
350 Ω
Explanation:
The resistance of the unknown resistor can be found by using Ohm's Law, which states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R). We know the voltage (70 V) and the current (0.2 A) for the circuit, so we can find the resistance of the unknown resistor as follows:
V = IR
70 V = 0.2 A * R
R = 70 V / 0.2 A
R = 350 Ω
So the resistance of the unknown resistor is 350 Ω.