What is the weight of car at 25th percentile and 75th percentile? of 1155,1100,1540,1760,1390,90,1610,1305,1685,1425,1365,1655,1465,1515,1130,1440,1275
Answers
The weight of the car at the 25th percentile is 1305, and the weight of the car at the 75th percentile is 1655, based on the given set of weights.
To find the weight of a car at the 25th and 75th percentiles, we need to sort the given weights in ascending order first, which gives us:
90, 1130, 1155, 1275, 1305, 1365, 1390, 1425, 1440, 1465, 1515, 1540, 1610, 1655, 1685, 1760.
The percentile is a measure used to divide a set of data into 100 equal parts. The 25th percentile represents the weight value below which 25% of the weights in the set lie, while the 75th percentile represents the weight value below which 75% of the weights in the set lie.
To find the weight at the 25th percentile, we first calculate the index corresponding to the 25th percentile:
\(Index = (25/100) \times (n + 1) = 4.25\)
Since we cannot have a fraction of an index, we can round up to 5, which gives us the weight at the 25th percentile:
Weight at 25th percentile = 1305
Similarly, to find the weight at the 75th percentile, we calculate the index corresponding to the 75th percentile:
\(Index = (75/100) \times (n + 1) = 12.75\)
Rounding up gives us an index of 13, which gives us the weight at the 75th percentile:
Weight at 75th percentile = 1655
In summary, the weight of the car at the 25th percentile is 1305, and the weight of the car at the 75th percentile is 1655, based on the given set of weights.
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Related Questions
1. A 500.0 g metal block absorbs 5.875 × 103 J of heat to raise its temperature by 50.0 K. What is the substance? Show your work.
Specific Heats of Selected Substances
Substance
C [J/(kg·K)]
Water (ice)
2,060
Iron
450
Aluminum
897
Gold
130
Copper
385
Silver
235
Ammonia (liquid)
4,700
Water (liquid)
4,180
Water (steam)
2,020
Lead
128
Answers
The name of the substance is silver based on the specific heat capacity value.
What is the specific heat capacity of the substance?The specific heat capacity of the substance is calculated by applying the following formula for heat capacity.
Q = mcΔθ
where;
m is the mass of the substancec is the specific heat capacity of the substanceΔθ is the change in temperaturec = Q / mΔθ
The specific heat capacity of the substance is calculated as;
c = (5875 J ) / ( 500 g x 50 )
c = 0.235 J/kgK
The substance that has the same specific heat capacity calculated above is silver.
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The Earth’s radius is 6.4 x 10^6 m and 1kg = 2.2lb. What is the force that the Earth exerts on you?
Using what you found out in question 1, what is the force that you exert on the Earth?
What would the Sun’s force be on the Earth, if our planet were twice as far from the Sun as it is now?
How does that force (from number 3) compare to the force from the Sun at our present location?
Answers
The force the earth exerts on a person that is 1 kg is 9.8 N.
The force the person exert on earth is 9.8 N.
If our planet were twice as far from the Sun as it is now, the Sun’s force on the Earth will be quarter the initial value.
Force the Earth exerts on you
The force the earth exerts on you is calculated as follows;
F = mg
where;
g is the acceleration due to gravity of EarthF = 1 kg x 9.8 m/s²
F = 9.8 N
Thus, the force the earth exerts on an object that is 1 kg is 9.8 N.
Also, based on Newton's third law of motion, the force the exerts on you is equal to the force you exert on Earth.
Force between the Earth and SunF = GmM/R²
where;
m is mass of EarthM is mass of the sunG is gravitation constantR is the distance between the sun and the earthF = (6.67 x 10⁻¹¹ x 5.97 x 10²⁴ x 1.98 x 10³⁰) / (150.23 x 10⁹)²
F = 3.5 x 10²² N
When our planet is twice as farF = GmM/(2R)²
F = GmM/(4R²)
F = ¹/₄GmM/R²
Thus, if our planet were twice as far from the Sun as it is now, the Sun’s force on the Earth will be quarter the initial value.
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Solve the spherical mirror equation for s?.
Express your answer in terms of f and s.
ANSWER:
s? = _______
Answers
The spherical mirror equation for s in terms of f and s' is s = f ± √(f^2 - s'f)
To solve the spherical mirror equation for s, we can use the formula:
1/f = 1/s + 1/s'
where f is the focal length of the mirror, s is the distance of the object from the mirror, and s' is the distance of the image from the mirror.
We can rearrange this formula to solve for s:
1/s = 1/f - 1/s'
Multiplying both sides by s'f, we get:
s'f/s = s' - f
Adding f to both sides, we get:
s'f/s + f = s'
Substituting s' = 2f - s, we get:
s'f/s + f = 2f - s
Multiplying both sides by s, we get:
s'f + fs = 2f s - s^2
Rearranging this equation, we get the solution for s in terms of f:
s^2 - 2f s + s'f = 0
solving for s:
s = (2f ± √(4f^2 - 4s'f))/2
s = f ± √(f^2 - s'f)
Therefore, the solution for s in terms of f and s' is:
s = f ± √(f^2 - s'f)
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If the density of 45.0 cm cubed block of wood is 0.65 g/cm calculate the woods mass
Answers
What part of the Milky Way allows for determination of its rotational direction? A. Celestial body B. Galactic body C. Galactic disk D. Two long tails
Answers
Answer: C. Galactic disk
Explanation:
The part of the Milky Way which allows the determination of it rotational direction is known as the Galactic disk. This disc are shaped because they contain gases which are rich and dynamically young. It is also a part of a group of a galaxies disc is a component of disc galaxies, known as spiral galaxies and lenticular galaxies.
Answer:
Galactic disk
Explanation:
Galactic disc's are composed mostly of the galaxy's stars and a gaseous component mostly composed of cool gas and dust. The stellar population of galactic discs tend to exhibit very little random motion with most of its stars undergoing nearly circular orbits about the galactic center. This circular orbit maintains the galaxy's rotation momentum.
What type of electrical cord has a ground?
3 pronged cord
2 pronged cord
Answers
Explanation:
One prong is known as the hot wire, where the electricity comes in, while the second prong is the neutral wire and electricity leaves. Recall that a circuit must be made for electrons to flow. This means that electrons enters your house through the transmission wires and then the electrons leave along the same lines they entered (just along a different wire).
This set up describes a 2 pronged cord. Adding a third prong allows for a grounding to happen. In the event of an electrical surge, when too many electrons are flowing, disaster is likely to happen without some kind of safety features. The grounding prong allows electrons to seek the ground. You can think of it like a drain in a bathtub when too much water gets in the tub.
Answer:
3 pronged cord
Explanation:
Identify each part of this chemical equation that describes the burning of methane and oxygen. B (blue box): D (number): E (purple box):
Answers
Answer:
The correct answer is -
A (the entire green box): Chemical Equation
B (the blue box): Reactants
C (the arrow): Reacts to Form
D (the number): Coefficient
E (the purple box): Products
Explanation:
The chemical reaction of burning methane and oxygen is as follows;
Here, the green part A is the chemical equation that includes various parts that are reactants B, methane, and oxygen, C is an arrow that indicates the formation of products.
2 is here coefficient that indicates the moles of the oxygen which forms carbon dioxide and water in box E is products
Answers:
A (the entire green box): chemical equation
B (the blue box): reactants
C (the arrow): reacts to form
D (the number): coefficient
E (the purple box): products
Explanation:
As seen in the picture below,
A series RLC circuit has a resistance of 20 , a capacitance of 10-2 F, an inductance of 10 H and an applied voltage E(t) = 200 cos 5t Volts. Assuming no initial current and charge when voltage is first applied, find the subsequent current in the system.
Answers
The subsequent current in the series RLC circuit is given by the equation: i(t) = I * cos(5t - Φ), where I is the amplitude of the current and Φ is the phase angle.
To find the subsequent current, we need to calculate the amplitude (I) and the phase angle (Φ) of the current.
First, let's calculate the resonant frequency (ω) of the circuit:
ω = 1 / √(LC) = 1 / √(10 * 10^(-2)) = 1 / √1 = 1 rad/s.
The applied voltage can be written as E(t) = E * cos(ωt), where E is the amplitude of the voltage.
Comparing this with the given voltage E(t) = 200 * cos(5t), we can equate the angular frequencies: ω = 5.
Now, let's find the impedance (Z) of the circuit:
Z = √(R^2 + (Xl - Xc)^2),
where R is the resistance, Xl is the inductive reactance, and Xc is the capacitive reactance.
R = 20 Ω
Xl = ωL = 1 * 10 = 10 Ω
Xc = 1 / (ωC) = 1 / (5 * 10^(-2)) = 20 Ω
Plugging in these values, we get:
Z = √(20^2 + (10 - 20)^2) = √(400 + 100) = √500 ≈ 22.36 Ω.
The amplitude of the current (I) can be calculated using Ohm's Law:
I = E / Z = 200 / 22.36 ≈ 8.94 A.
The phase angle (Φ) can be found using the relationship between resistance, inductive reactance, and capacitive reactance:
tan(Φ) = (Xl - Xc) / R = (10 - 20) / 20 = -0.5.
Therefore, Φ ≈ -0.464 rad.
The subsequent current in the series RLC circuit is given by i(t) = 8.94 * cos(5t + 0.464) A.
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Why is a rotated coordinate system used to solve an inclined plane problem?
A) Reduce the number of forces that need to be resolved into their x and y components.
B) To eliminate the need to consider the force of gravity.
C) To align the coordinate axes with the acceleration of the object on the plane.
D) To minimize the number of forces that need to be considered.
Answers
Answer:
Actually the answer is C, To align the coordinate axes with the acceleration of the object on the plane.
draw the vectors starting from the tip of the object making use of the crosshair to locate the tip. the location and orientation of the vectors will be graded.
Answers
Drawing vectors starting from the tip of an object using a crosshair can help visually represent quantities associated with the object. It allows you to accurately locate the tip and draw vectors with the correct orientation. This method helps in understanding the location and orientation of the vectors in relation to the object being analyzed.
The instructions ask you to draw vectors starting from the tip of an object using a crosshair to locate the tip.
Here is a step-by-step explanation:
1. Start by identifying the object you want to draw vectors for.
2. Use a crosshair to locate the tip of the object accurately.
A crosshair is a set of perpendicular lines that intersect at a common point, which can help you pinpoint a specific location.
3. Once you have located the tip, draw a vector that represents a quantity associated with the object.
Vectors are arrows that have both magnitude (size) and direction.
For example, if you are drawing vectors to represent forces acting on the object, you would draw an arrow pointing in the direction of the force and with a length proportional to the magnitude of the force.
4. Repeat the process for each vector you need to draw, starting from the tip of the object and using the crosshair to locate it accurately.
5. Pay attention to the orientation of the vectors.
The orientation refers to the direction in which the vector points.
Make sure you draw the vectors in the correct direction based on the context of the problem.
6. Once you have drawn all the vectors, you can analyze their locations and orientations.
This analysis can help you understand the relationships between the different quantities represented by the vectors.
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At a swim meet, swimmer A swims 50 m in 12 s, swimmer B in 13 s, swimmer C in 11 s, and
swimmer D in 14 s. The race involved swimming back and forth one time. Which swimmer had
the greatest displacement?
Answers
Answer:
Swimmer B had the greatest displacement:)
Explanation:
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How is dramatic irony used in the story to create suspense? responses a although the narrator does not think so, the reader knows he is crazy.although the narrator does not think so, the reader knows he is crazy. b the reader is beginning to agree with the narrator that he is sane.the reader is beginning to agree with the narrator that he is sane. c the narrator is starting to act differently and less crazy.the narrator is starting to act differently and less crazy. d the narrator is questioning his sanity at this point.
Answers
Dramatic irony is used in the story to create suspense is the narrator is questioning his sanity at this point.So option d is correct.
Dramatic irony occurs when the reader possesses knowledge or information that is unknown to the characters in the story. In this case, the narrator is questioning his own sanity, but the reader knows the truth about his mental state. This creates suspense because the reader is aware of the internal struggle and doubt within the narrator, and they anticipate the potential consequences or revelations that may arise from this conflict. The reader's understanding of the narrator's true condition adds tension and uncertainty to the story, as they wonder how the narrator's questioning of sanity will affect the plot and the overall outcome.Therefore option d is correct.
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Type your answer...
3
4 points
If a car in front of the school travels 50.4 m in 1.18 seconds, what is their speed in m/s?
Round your answer to a single decimal point.
Type your answer...
Answers
Answer:
50.4÷1.18= 42.7m/s as speed is equal to the distance over the time taken
A golf ball is hit horizontally off the edge of a 20 m high cliff and lands a distance of 18 m from the edge of the cliff. What was the initial vertical velocity of the ball?
0 m/s
16 m/s
-16 m/s
40 m/s
Answers
Answer:
None of the options are correct.
Explanation:
Let \(V_x\) be the initial horizontal velocity of the golf ball t be the time of flight.
The time of flight, t, is the time taken by the ball to touch the ground. The ball falls towards earth due to gravitational force which acts vertically downward, so, the horizontal velocity of the ball remains unchanged.
As the horizontal distance covered by the ball is 18 m,
As distance = speed x time, so
\(V_x t = 18\cdots(i)\)
Now, by using the equation of motion in the gravitational field,
\(s=ut+\frac 12 g t ^2\)
Here, u is the initial velocity in the vertical direction, s is the displacement traveled in time t, g=9.81 is the acceleration due to gravity.
Here, we have u=0, s=20 m (height of the cliff), \(g=9.81 m/s^2\).
\(\Rightarrow 20=0\times t +\frac 12 (9.81)t^2\)
\(\Rightarrow t^2= \frac {20\times 2}{9.81}\)
\(\Rightarrow t= \sqrt{\frac {40}{9.81}}\)
\(\Rightarrow t=2\) seconds (approx)
From equation (i), e have
\(V_x\times 2=18\)
\(\Rightarrow V_x=18/2=9\) m/s.
So, the initial velocity of the ball is 9m/s in the hprizontal diection.
Hence, none of the options are correct.
A constant pressure and temperature chamber, full with 50 % air and 50 % carbon dioxide (by mass) at 1 bar and 30 °C, is fed with a flow of steam. Determine the specific humidity at which the mixture will become saturated.
Answers
A constant pressure and temperature chamber, full with 50 % air and 50 % carbon dioxide (by mass) at 1 bar and 30 °C, is fed with a flow of steam. The specific humidity is zero
The specific humidity at which the mixture becomes saturated can be determined through the following approach:
A constant pressure and temperature chamber contains a mixture of 50% air and 50% carbon dioxide (by mass) at a pressure of 1 bar and temperature of 30°C, which is fed with a flow of steam.
Therefore, the total pressure within the chamber will be the sum of the pressure of the dry air component, the pressure of the CO2 component, and the pressure of the water vapor in the chamber.
The total pressure in the chamber can be determined as follows:
P = P_air + P_CO2 + P_H2OP_air = 0.5(1 bar) = 0.5 barP_CO2 = 0.5(1 bar) = 0.5 barThe partial pressure of the water vapor can be determined using the following formula:P_H2O = ϕ(P-P_H2O)
where
P = total pressure in the chamberP_H2O = vapor pressure at the chamber temperatureϕ = specific humidity
The vapor pressure of water at 30°C can be found from a steam table to be 4.246 kPa.
Therefore,P_H2O = 4.246/100 = 0.04246 bar
Substituting the given values,P_H2O = ϕ(1 - 0.5 - 0.5)P_H2O = ϕ(0)P_H2O = 0
Therefore, the specific humidity at which the mixture will become saturated is ϕ = P_H2O/(P-P_H2O) = 0/1 = 0.The specific humidity is zero.
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What is the speed of an object at rest?
0 m/s
O 1 m/s
O 10 m/s
Answers
Answer:
1 m/s so number 2 is the right one
Explanation:
so when it is at rest it still has some of the left over energy so it would be at 1 m/s
A brass rod is encased in aluminum. What happens to the speed of a sound
wave when it passes through the rod and moves from the brass into the
aluminum?
Aluminum
Copper
Lead
Brass
(70% Cu,
30% Zn)
6,420
4,700
5,010
1,960
Speed of
sound
(m/s)
A. Its speed decreases.
OB. Its speed increases.
ООО
O C. Its speed falls to zero.
OD. Its speed stays the same.
PREVIOUS
Answers
Answer:
B. its speed increases
Explanation:
A brass rod is encased in aluminium. The speed of a sound wave in this decreases when it moves from the aluminium into the brass medium. Thus, the correct option is A.
What factors affect speed of sound?Sound travels in different mediums in the form of waves. The speed of sound is the speed with which the sound wave travels in a medium. The speed of the wave depends on the density and the elasticity of the medium through which the sound waves travel. In general, the sound wave travels faster in the liquid mediums in comparison to the gas medium and these are quicker in solid mediums than in liquid mediums. Thus, the greater the elasticity and the lower the density of the waves, the faster the sound waves travel in that medium.
The speed of sound in aluminium is 5100m/s and in the brass medium, it is 6,923. So, if the sound wave is moving from aluminum metal to the brass medium, we can clearly observe that there is decrease in the speed of sound. So, we can say here that is the speed is decreases.
Therefore, the correct option is A.
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Newton's discovery concerning how fast an object will change speed is the:
1st Law
3rd Law
2nd Law
Universal Gravitation
Answers
Answer:
I think its the second law..
Explanation:
Answer:
its the second law.
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The concentration of enzyme for each experiment was 5.0 uM. What is the kcat for the reaction at ph 4.5 when no chloride added when compound 3 is substrate?
DIDN'T GET WRONG BUT WANTED TO BETTER UNDERSTAND
2.5E-2 s^-1
Rate for compound 3 is 125 nM/s, and rate of product formation did not vary over time for first 5 minutes implies enzyme was saturated with substate.
Kcat=Vmax/[E]= 125 nM/s/(5.0 uM)= 2.5E-2 s^-1
Answers
The kcat for the reaction of the enzyme at pH 4.5 when no chloride is added and compound 3 is the substrate is 2.5E-2 s^-1. This value is calculated using the formula Kcat = Vmax / [E], where Vmax is the maximum velocity of the reaction, and [E] is the concentration of the enzyme.
In this experiment, the concentration of the enzyme is 5.0 uM, and the rate of product formation for compound 3 is 125 nM/s. As the rate of product formation did not vary over the first 5 minutes, it can be assumed that the enzyme was saturated with substrate. Using this information, the kcat can be calculated as:
Kcat = Vmax / [E]
= 125 nM/s / (5.0 uM)
= 2.5E-2 s^-1
Therefore, the kcat for the reaction at pH 4.5 when no chloride is added and compound 3 is the substrate is 2.5E-2 s^-1.
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6. A cyclist travels at a constant velocity of 2.3 m/s westward and continues at this
velocity for 60 seconds. Then, the cyclist speeds up to a velocity of 4.5 m/s and stays at
this velocity for another 60 seconds. Calculate the cyclist's acceleration.
Answers
Answer:
0.02 m/s^2
Explanation:
acceleration= change in velocity/change in time
change in velocity= 4.5m/s - 2.3m/s = 2.2 m/s
acceleration= 2.2/120= 0.0183
= 0.02 (to 2 significant figures)
You can make a smoothie in a blender with a power of 400 watts and an efficiency of 85 percent. How much energy is actually being used to make the smoothie in 30 seconds?
Answers
Answer:
total energy is 14.12kj
energy at 85% is 12kJ
Explanation:
Billy jumps upward with a velocity of 4.2 m/s off a 6m high diving board. how long does it take for Billy to hit the water?l
Answers
Billy jumps upward with a velocity of 4.2 m/s off a 6m high diving board. . Billy will take 0.43 sec to hit the water
The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics.
using equation of kinematics
v = u + g*t
sign convention
positive y direction (upward) = +
negative y direction ( downward ) = -
v = u - g*t
0 = 4.2 - ( 9.8 * t )
t = 4.2 / 9.8
t = 0.43 sec
Billy will take 0.43 sec to hit the water
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There is concern that extra additives in detergents can
have negative health and environmental impacts. Is
it wise to use detergents containing these additives?
Answers
Answer:
Look below.
Explanation:
If additives are having negative effects on health and the environment, it would be wise to not use detergents containing these additives. These additives could threaten living things such as humans and animals.
There is concern that extra additives in detergents can have negative health and environmental impacts, then it would be very unwise to use detergents containing these additives
What is pollution?It can be defined as the origination of the contaminant substance that poisonous or harmful to our natural environment.
There are several types of pollution that exist in our nature depending on the state and composition of the contaminant, for example, water pollution can exist due to the eutrophication process.
It would be quite unwise to use surfactants that include these additional ingredients since there is fear that they might have a harmful influence on your well-being and the environment.
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Part 2:
A student is listening to a pure sound wave being produced by a speaker. Each picture shows a sound
with a different frequency, but with the same amplitude.
A
B
C
a. Which picture (A, B, or C) shows the student listening to the sound with the highest frequency?
Why do you think so?
Answers
According to the information, we can infer that image C shows the student listening to the sound with the highest frequency.
Which student is hearing the sound most often?To identify the student who is hearing the sound most frequently, we must take into account that sound is transmitted by waves. In this case, the speaker forms a wave and the frequency refers to the frequency with which the waves are produced.
According to the above, we can infer that the image in which the sound has a higher Sequency is image C because the lines that represent the waves are closer to each other and there are more of them.
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There is only one submission for this question. Consider a double-slit experiment. Match the equation with the appropriate type of interference. d sin theta = m lambda, m = 0.1.2. ... d sin theta = (m + 1/2)lambda m = 0.1.2. ...
Answers
The equation d sin theta = m lambda, where m can be any integer including 0, represents constructive interference in a double-slit experiment.
This equation is used to calculate the location of bright fringes on the screen where the two waves interfere constructively. On the other hand, the equation d sin theta = (m + 1/2)lambda, where m can also be any integer including 0, represents destructive interference in the double-slit experiment. This equation is used to calculate the location of dark fringes on the screen where the two waves interfere destructively.
matching equations to the appropriate type of interference in a double-slit experiment. The two equations provided are:
1. d sin theta = m lambda, m = 0, 1, 2, ...
2. d sin theta = (m + 1/2) lambda, m = 0, 1, 2, ...
The first equation (d sin theta = m lambda) represents constructive interference. Constructive interference occurs when the path difference between two waves results in a multiple of their wavelength (m lambda), leading to an enhancement of the wave amplitude at that point.
The second equation (d sin theta = (m + 1/2) lambda) represents destructive interference. Destructive interference occurs when the path difference between two waves results in a half-integer multiple of their wavelength ((m + 1/2) lambda), causing the wave amplitudes to cancel each other out at that point.
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The frequency of a musical note is increased. A student hearing the sound detects an increase in which property?
Answers
Answer:
B. pitch of the sound is the answer <333
If the voltage source in a circuit is 6.2 V and the current is 2A; what is the resistance?
Answers
Answer: 3.1
Explanation:
v=ir
so r=v/i
6.2/2=3.1 ohms
Answer :The answer is 3.1
Explanation: For this equation we solve it by dividing the voltage by the current flowing in the circuit. So the resistance formula is represented by
voltage/current.
check if
v^{2} = u^{2}+2as is dimensionally correct
Answers
Using dimensional analysis; L²/T⁴ = 2 * L²/T⁴
Thus, v² = u² + 2as is dimensionally correct.
What is dimensional analysis?Dimensional analysis is the process whereby the various quantities of measurement are expressed in their basic unit or the fundamental units from which they are derived.
The fundamental units which are used in dimensional analysis is done is:
mass expressed as Mlength expressed as Ltime expressed as TTo check if v² = u² + 2as is dimensionally correct:
unit of v = m/s = L/T
unit of u = L/T
unit of a = L/T²
s = L
(L/T)² = (L/T)² + L * L/T²
L²/T⁴ = L²/T⁴ + L²/T⁴
L²/T⁴ = 2 * L²/T⁴
The expression, v² = u² + 2as is dimensionally correct.
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A circularly polarized wave, traveling in the positive z-direction, is incident upon a circularly polarized antenna. Find the polarization loss factor PLF (dimensionless and in dB ) for right-hand (CW) and left-hand (CCW) wave and antenna.
Answers
The polarization loss factor (PLF) for a circularly polarized wave incident upon a circularly polarized antenna can be calculated as the ratio of received power for matching polarization to the received power for mismatched polarization, expressed in dB. The PLF for right-hand circular polarization (RHCP) is 10 log10[(P_received (RHCP)) / (P_received (LHCP))], while the PLF for left-hand circular polarization (LHCP) is 10 log10[(P_received (LHCP)) / (P_received (RHCP))].
To find the polarization loss factor (PLF) for a circularly polarized wave incident upon a circularly polarized antenna, we need to consider the polarization mismatch between the wave and the antenna.
The PLF can be calculated as the ratio of the power received by the antenna when the polarization of the incident wave matches the polarization of the antenna, to the power received when the polarization is mismatched.
For a right-hand circularly polarized (RHCP) wave incident upon a circularly polarized antenna, the PLF in dB can be calculated using the formula:
PLF (RHCP) = 10 log10[(P_received (RHCP)) / (P_received (LHCP))]
Similarly, for a left-hand circularly polarized (LHCP) wave incident upon a circularly polarized antenna, the PLF in dB can be calculated using the formula:
PLF (LHCP) = 10 log10[(P_received (LHCP)) / (P_received (RHCP))]
Here, P_received (RHCP) refers to the power received by the antenna when the incident wave is RHCP, and P_received (LHCP) refers to the power received when the incident wave is LHCP.
The PLF value in dB indicates the level of power loss due to polarization mismatch. A lower PLF value indicates a better match between the polarization of the wave and the antenna.
Please note that the exact values of P_received for the RHCP and LHCP cases would depend on the specific characteristics of the wave and the antenna, which are not provided in the given information.
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A sound wave, with an intensity of 50 w/cm2, strikes a boundary and is totally reflected. What is the intensity reflection coefficient (irc)?
Answers
The intensity reflection coefficient (irc) is 1.
What is the intensity reflection coefficient (irc)?The ratio of the intensity of the reflected wave to the incident (transmitted) wave is known as the intensity reflection coefficient.
Intensity of incident (transmitted) sound wave = 50 W/cm².
As it is totally reflected, intensity of the reflected sound wave = 50 W/cm².
Hence, intensity reflection coefficient =
intensity of the reflected sound wave ÷ Intensity of incident sound wave
= 50 W/cm² / 50 W/cm².
= 1.
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