The displacement that the wave travels is y = sin{5.23t - 2.42x + (π/2)}.
As we know that the wave equation is given as
y = A sin(ωt - kx + Φ₀)
now we have
A = 0.19 m
λ = 2.6 m
so we have to find k for the wave equation for displacement
k = 2π/λ
k = 2π / 2.6
k = 2.42 rpm
also we have the time as
T = 1.2 s
So, we have the ω as
ω = 2π / t = 2π / 1.2
ω = 5.23 rad/s
now we know that at t = 0 and x = 0 wave is at y = 0.19 m
so we have
Φ₀ = π / 2
Now the wave equation will be given as
y = sin{5.23t - 2.42x + (π/2)}
Therefore, the displacement that the wave travels is y = sin{5.23t - 2.42x + (π/2)}.
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over the course of a day (twenty-four hours), what is the angular displacement of the second hand of a wrist watch in radians?
The angular displacement of the second of a wrist watch is d)9050 radians. So, correct option is d.
We know very well that angular displacement is defines as the point through which any line or body rotates in any specified direction.
In 1 minute number of seconds are =60
In 60 minutes number of seconds are =60×60=3600
In 24 hours number of seconds are =24×60× 60=86400
So, we have total number of seconds as 86400.
Now, we know that second hand clock completes one revolution of the clock in 60 seconds.
It means, Angular displacement in 60 second = 2π radians
Angular displacement in 1 second = 2π/60=π/30 radians
Therefore, angular displacement in 86400seconds =(π/30)×86400=2880π radians,
which is equivalent to =2880×(22/7)=9050.42radians.
Hence, angular displacement is 9050 radians
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(Complete question) is:
over the course of a day (twenty-four hours), what is the angular displacement of the second hand of a wrist watch. Express your answer in radians?
a)1440radians
b)2880 radians
c)6070 radians
d)9050 radians
What are the 3 types of electromagnetic waves?.
The 3 types of electromagnetic waves are
Radio Waves
Infrared Waves
Ultraviolet (UV) Waves
What is electromagnetic waves ?A magnetic field and an electric field vibrate together to produce electromagnetic waves, also known as EM waves. In other words, magnetic and electric fields that are oscillating make up electromagnetic waves (EM).
And we call these waves "electromagnetic" because they have magnetic fields in addition to electric fields. We also call them "waves" because they propagate outward in accordance with wave equations, just like all the other waves we've seen.
Transverse motion characterises electromagnetic waves. Magnetic and electric fields that are perpendicular to each other oscillate to form electromagnetic waves. The speed of electromagnetic waves through vacuum is the same, 3 x 10^8 m/s.
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a generator rotates at 81 hz in a magnetic field of 0.055 t . it has 850 turns and produces an rms voltage of 180 v and an rms current of 55.0 a .
According to the given statement Peak current= 84.86 A and Area of each turn = 0.029 m^2
Briefing:
The peak value of current can be obtained from Irms= 0.707Io. Where Io is the peak current.
Hence;
Irms= 55.0A
Io= Irms/0.707
Io = 50.0/0.707
Io= 70.72 A
Vrms= 0.707Vo
Vo= Vrms/0.707= 180/0.707 = 254.59 V
From;
V0 = NABω
Where;
Vo= peak voltage
N= number of turns
B= magnetic field
A= area of each coil
ω= angular velocity
But ω= 2πf = 2×π×81= 508.68 rads-1
Substituting values;
A= Vo/NBω
A= 254.59/508.68×0.055×508.68
A= 0.010 m^2
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if an astronomer wants to find the distance to a star that is not variable and is located too far away for parallax measurements, she can:
If an astronomer wants to find the distance to a star that is not variable and is located too far away for parallax measurements, she can analyze the star's spectrum to determine its luminosity class, then interpret an H-R diagram to determine its luminosity.
Define Luminosity of a star?
The total amount of energy released by a star or other astronomical object each second is expressed as luminosity, or L. A star's luminosity is determined by its effective temperature, Teff, and radius, R.Roman numerals are used to identify luminosity classes, which indicate where a star belongs on the H-R diagram. The luminosity class and spectral type each provide information about the star's radius and temperature.
Astronomers can determine a star's supergiant, giant, or main-sequence star status based on its luminosity class.
Hence, if an astronomer has to determine the distance to a main sequence star that is not variable and is too far away to be measured by parallax, she can determine the star's brightness or surface color and then identify it on the H-R Chart.
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Arigid assembly consists of three identical uniform bars with an extra mass attached to one of them, as shown. The assembly can spin freely in the vertical plane about the point connecting the bars. Initially, the assembly is at rest in position A The extra mass is then given a very slight disturbance. Shortly after the assembly is observed to be in position B. Between positions A and B the angular momentum of the system is conserved, because the net force is zero conserved, because the net torque is zero conserved, because the rotational inertia is constant not conserved, because of the torque provided by gravity E) not conserved, because of the torque provided by the force at the prvot pont
Any item that can be rotated has the property of rotational inertia. It is a scalar value that indicates how challenging it is to alter an object's rotational velocity around a specific rotational axis.
The role of mass in linear mechanics is analogous to that of rotational inertia in rotational mechanics. Indeed, an object's mass affects its rotational inertia. Additionally, it relies on how that mass is distributed in relation to the axis of rotation.
It becomes harder and harder to adjust the rotational velocity of the system as a mass deviates from the axis of rotation. This makes intuitive sense given that the mass is now moving around the circle with additional momentum due to its increased speed.
The angular momentum remains constant, or is conserved, in the absence of torque application, or when the net torque is zero.Because there is no friction on the surface of this inelastic collision and no torque is produced by the external force acting on the nail, angular momentum is conserved.To know more about rotational inertia
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Question:
Identify the correlation you would expect to see between the weight of baggage someone carries and the speed at which he or she walks. Explain.
Correlation
Correlation is a way of measuring the relationship between two variables. The stronger the relationship between the variables, the higher the magnitude of the correlation coefficient.
It shows a negative correlation; As the weight of the luggage increased, the walking speed of the person decreased.
A scatterplot displays the strength, direction, and form of a relationship between two quantitative variables. The correlation coefficient measures the strength of the relationship. Calculating the Pearson correlation coefficient requires the assumption that the relationship between two variables is linear. Increasing weight in any static friction environment will always decrease acceleration for a given applied force. Heavier objects have a greater gravitational force and less acceleration for heavier objects. It turns out that these two effects exactly cancel out so that falling objects have the same acceleration regardless of mass. Overall, you can say that for every additional percent that you shift easier, you also shift by one percent faster. This makes sense, because you use less energy when you're lighter, but your cardiopulmonary system remains unchanged.
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which of the following identifies and describes the equipment needed to best determine the amount of water that infiltrated the soil? a soil triangle should be used to determine the soil texture in both pallets before and after the water is added to both pallets. a scale should be used to measure the mass of both pallets immediately after pouring the water over the pavers and immediately after the one-hour wait time. a turbidity meter should be used to determine the amount of particulate matter in both pallets before and after the water is added to both pallets. a ruler should be used to measure the level of water above the pavers in both pallets immediately after pouring the water over the pavers and immediately after the one-hour wait time.
The equipment needed to determine best the amount of water that infiltrated the soil is a ruler that should be used to measure the water level above the pavers in both pallets immediately after pouring the water over the pavers and immediately after the one-hour wait time.
Thus, the correct option is D.
What is the infiltration soil?Infiltrаtion is the downwаrd entry of wаter into the soil. Infiltrаtion rаte is expressed in inches per hour. Rаinwаter must first enter the soil for it to be of vаlue. Wаter moves more quickly through the lаrge pores of а sаndy soil compаred to slower movement through а clаy soil with smаll pores. Infiltrаtion is аn indicаtor of the soil’s аbility to аllow wаter movement into аnd through the soil profile. Soil temporаrily stores wаter, mаking it аvаilаble for root uptаke, plаnt growth аnd hаbitаt for soil orgаnisms.
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Measuring its costs and benefits in terms of energy spent and/or gained, which interaction definitely involves one individual gaining and one individual losing?.
Predation involves one individual gaining and one individual losing
What is predation ?In a predation, one organism, the predator, consumes all or a portion of the body of another, the prey. An example of herbivory is when a plant serves as the prey organism.
Predation lowers the number of individuals in the prey population at the level of the community. Carnivorous interactions, in which one animal consumes another, are the most well-known types of predation. Consider wolves hunting moose, owls catching mice, or shrews catching worms and other insects.
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A mass on a spring oscillates with simple harmonic motion of amplitude A about the equilibrium position x = 0. Its maximum speed is vmax and its maximum acceleration is amax.
(a) What is the speed of the mass at x = 0?
____vmax
(b) What is the acceleration of the mass at x = 0?
____amax
(c) What is the speed of the mass at x = A?
____vmax
(d) What is the acceleration of the mass at x = A?
____amax
When the mass is traveling toward x=+A at the equilibrium position (x=0), the maximum velocity occurs.
What is velocity?Velocity is defined as a vector expression representing the change in position over time of an object or particle. Acceleration is the rate at which the speed and direction of a moving object vary over time.
In simple harmonic motion, the acceleration is zero at the object's maximum speed. Maximum mass displacement in SHM equates to maximum acceleration. The momentum calculator uses the equation p=mv, or momentum (p) equals mass (m) times velocity (v).
Thus, when the mass is traveling toward x=+A at the equilibrium position (x=0), the maximum velocity occurs.
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6.00 g bullet, traveling horizontally at a speed of 400 m/s, is fired into a 1.0 kg wooden block which is initially at rest on a horizontal surface. the bullet passes all the way through the block, and emerges on the other side with a speed of 100 m/s. the block then slides a distance of 0.20 m along the surface before coming to rest.
6.00 g bullet, traveling horizontally at a speed of 400 m/s is initially at rest on a horizontal surface then moment conservation V=0.4 m/s
Mass bullet = 6*10⁻³
Mass of block=2kg
Pi=Pf
(5*10⁻³)400+0=120*(6*10⁻³)+2v
v=0.7 m/s
Ki=1/2mv²=1/2ˣ6*10⁻³ˣ400²
Ki=1/2ˣ6ˣ10⁻³ˣ16ˣ10⁴
Ki=400j
Kf=1/2mv²=1/2ˣ6*10⁻³ˣ120²
Kf=36J
moment conservation
V=0.4 m/s.
The principle of momentum conservation states that momentum is neither created nor destroyed but only changed by the action of forces as they are described by Newton's laws of motion. This applies to a particular problem domain. The only thing that happens when two bodies collide is that their momentum changes. Thus, for bodies colliding, changes in momentum are always equal and opposite. The momentum of the other body must decrease by the same amount if the momentum of the first body increases. As a result, momentum always remains constant.
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air pressure in the atmospehre always decreases when altitude increases bcause air pressue is determined by the weight of the overlying air. air rising through the atmosphere expands a s less pressue acts on it and, in turn, its tempereature
On Earth, the air becomes less dense and loses pressure as it rises in height. There is a bad correlation between the two variables.
What is atmosphere?The layers of gases that envelop a planet or other celestial body are its atmosphere. About 78% of the gases in the Earth's atmosphere are nitrogen, 21% are oxygen, and 1% are other gases.
What is air pressure?Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure. It is the force that the air above a surface applies to it while gravity pulls the surface toward Earth. A barometer is frequently used to measure atmospheric pressure.
What is altitude?Height above sea level is how altitude is defined. Air pressure and height are two different but related ideas. In fact, they are so closely related that many airplane altimeters base their altitude calculations on air pressure. And one can also do the opposite; mountain climbers can determine whether they need to bring an oxygen supply by forecasting the air pressure on a mountaintop with a known elevation.
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A 15. 0-kg load of bricks hangs from one end of an inextensible rope that passes over a small, frictionless pulley. A 28. 0-kg counterweight is suspended from the other end of the rope. The system is released from rest. What is the magnitude of the acceleration of the system? what is the tension acting on the rope?.
The magnitude of the acceleration of the system in which a 15.0-kg load of bricks hangs from one end of an inextensible rope that passes over a small, frictionless pulley when released from rest is 2.96 m / s²
For bricks,
F = T - W
m a = T - m g
15 a = T - ( 15 * 9.8 )
T = 147 + 15 a
For counterweight,
F = T - W
- m a = T - m g
- 28 a = T - ( 28 * 9.8 )
T = 274.4 - 28 a
Equating both values of T,
147 + 15 a = 274.4 - 28 a
43 a = 127.4
a = 2.96 m / s²
Substituting a in any equation of T,
T = 147 + 15 a
T = 147 + ( 15 * 2.96 )
T = 147 + 44.44
T = 191.44 N
Therefore,
The magnitude of the acceleration of the system is 2.96 m / s²
The tension acting on the rope is 191.44 N
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To measure the depth of the ocean, a ship sends a short pulse of sound downwards, which is reflected from the ocean floor and arrives back at the ship 2 seconds after it was sent. If the bulk modulus of the sea water is 0.21 x 1010 N/m2 and the density of sea water is 1024 kg/m3, what is the speed of sound in the sea water and what is the depth of the ocean at that location.
How fast sound travels through water at sea level and how deep the ocean is 1.432 x 10³m.
Given
Bulk modulus ( B ) = 0.21 x 10¹⁰ N/ m²
density of sea le ) = 1024 kg / m³
Speed of sound In sea water ( v ) = √B/е
V =√0. 21 x 10¹⁰/1024
V = 1-.432 x 10³ m/s
The Speed of sound has to travel at the bottom of sea and get reflected back to ship itself the distance travel by Sound is 2x
So
(t = 2 see )
2x = vt
2x = 1 . 432 x 10³ x 2
x = 1.432 x 10³m
By observing the velocity of this compressed area as it passes through the medium, we can determine the speed of sound. The sound wave travels at a speed of approximately 343 meters per second, or 767 miles per hour, in dry air at 20 degrees Celsius.
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What is the best definition of a longitudinal wave?.
A wave in which the motion of the particle of the medium is parallel to the direction of the propagation of wave is known as a longitudinal wave. This is the definition of longitudinal wave.
Longitudinal waves are that kind of wave in which the particle of the medium Travels parallel in the direction of the propagation of the wave.
The longitudinal waves are also known as rear fractional waves and compressional waves because the particle in this wave moves in such a way that sometime they come very close to each other and sometimes they are far from each other.
Some of the examples of longitudinal wave includes the ripple in water, vibration in guitar string etc.
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How are ATP and glucose similar and different?.
ATP and glucose are similar and dissimilar in various ways. Major similarities and dissimilarities are as follows;
ATP molecules store smaller portions of energy, but every release just the proper amount to simply do work inside a cell. Muscle cell proteins, for instance, pull each other with the electricity launched whilst bonds in ATP ruin open. The procedure of photosynthesis additionally makes and uses ATP - for power to construct glucose! ATP, then, is the usable shape of energy for your cells. ATP is generally referred to as the "energy currency " of the cell.
A molecule of glucose incorporates a packet of chemical energy simply the right size for delivery and uptake by using cells. In your body, glucose is the "deliverable" shape of power, carried to your blood via capillaries to each of your a hundred trillion cells. Glucose is also the carbohydrate produced by photosynthesis, and as such is the close-to-everyday food for lifestyles.
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What is the lowest frequency in electromagnetic?.
The lowest frequency in electromagnetic will be of radio waves.
In the electromagnetic spectrum the lowest frequency range is 300 GHz to 3 kHz and these are known as radio waves.
Lowest frequency in the range of electromagnetic spectrum will be Radio waves . Since , Radio waves have lowest frequency that means they also have highest wavelength out of all . Whereas the maximum frequency in electromagnetic spectrum will be of gamma rays .
The frequency ranges from 300 G Hz to 3 kHz
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The radio waves has lowest frequency in electromagnetic spectrum.
Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. A radio wave is generated by a transmitter and then detected by a receiver. An antenna allows a radio transmitter to send energy into space and a receiver to pick up energy from space. Transmitters and receivers are typically designed to operate over a limited range of frequencies.
Hence, radio waves lies lowest at electromagnetic spectrum.
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Suppose you and your sister travel at different speeds in space and you note a slowing of her clock. Compared with her clock your sister will notice that your clock runs.
Compared with the sister's clock, she will notice that your clock runs slower. The conclusion can be derived from the Theory of Special Relativity.
What is the Theory of Special Relativity?The Theory of Special Relativity explains how the speed affects mass, time, and space.
The time slows down for observers moving relatively to each other approaching the speed of light. This is called time dilation.
The first observer will find the second observer's clock runs slower than the first observer's. At the same time, the second observer will find the first observer's clock runs slower than the second observer's.
The time dilation can be expressed as
[tex]\frac{t_{o} }{t} = \sqrt{(1 - \frac{v^{2} }{c^{2}} )}[/tex]
Where
t₀ = time in observers own frame of referencet = time observed by the observers moving relatively to the eventv = relative speed of the observersc = speed of light (3 × 10⁸ m/s)You and your sister travel at different speeds in space and you note that her clock runs slower. At the same time, compared with her clock, your sister will note that your clock runs slower by the same factor of
[tex]\sqrt{(1 - \frac{v^{2} }{c^{2}} )}[/tex]
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A small airplane at an altitude of 5000 feet is flying East at 300 feet per second, and you are watching it with a small telescope as it passes directly overhead. Refer to the figure above.
a. What is the slope of the telescope 5, 10, and 20 seconds after the plane passes overhead?
b. What is the slope of the telescope t seconds after the plane passes overhead?
c. After it passes overhead, is the slope of the telescope increasing, decreasing, or staying the same?
The solution for the first requirement from question a is provided as follows:
at 5 sec.:
speed = 300 ft/sec
distance = speed * time
= (300 ft/sec)
= 1,500 ft
slope = vertical distance/horizontal distance
Round off your answers to two decimal places.
(Answer should be in this format:)
a. at 10 sec, slope = _____at 20 sec, slope = 0._____
b. slope at t seconds = _____/t
c. _____
As the slope of the telescope 5,10 and 20 seconds of the plane is d=vt where d is distance, v is velocity, and t is time 39.81 sec.
Notice that the connection among the 2 regarded facets and the perspective may be represented with the aid of using the tangent characteristic for the reason that facets are contrary and adjoining to the perspective.
tangent=opposite adjacent.At t=5, the gap is d=300(5)=1500. Hence, computing for θ the usage of the tangent ratio.tanθ=50001500tanθ=103θ=tan−1(103)≈73.30∘Hence, the slope at t=5 is about 73.30∘.At t=10, the gap is d=300(10)=3000. Hence, computing for θ the usage of the tangent ratio.tanθ=50003000tanθ=53θ=tan−1(53)≈59.04∘Hence, the slope at t=10 is about 59.04∘.At t=20, the gap is d=300(20)=6000. Hence, computing for θ the usage of the tangent ratiotanθ=50006000tanθ=56θ=tan−1(56)≈39.81∘Hence, the slope at t=20 is about 39.81∘.b) Since the adjoining facet may be represented with the aid of using 300t, then making use of the trigonometric TOA [tex]tanθ=5000300ttanθ=503tθ=tan−1(503t)[/tex]Thus, the slope of the telescope t seconds after the aircraft passes overhead is given with the aid of using[tex]θ=tan−1(503t).[/tex]c) From the solutions in (a), it's far obvious that because the aircraft actions similarly from the factor overhead, the slope of the telescope decreases.Read more about slope :
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because the force acting on the atom i is the negative gradient of the interatomic potential energy, we write
The more potential energy a particle has, the more negative work the field does.
What kinds of energy are there?Chemical, electrochemical, radiation, muscular, thermal, and nuclear fuel are the six main types of energy. Different forms including electrochemical, acoustic, electromagnetic, and others might be addressed in other studies.
Why is energy so crucial?Energy is a major factor in our everyday routines even though it is an essential need for humans. Our human-made structures are not only heated by energy, but also cooled by it. To lift you finger, climb out of bed, or even stroll down main sidewalk, you need energy.
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a student is trying to determine the tensions in the strings connecting the boxes. if the acceleration of the system and the pulling force f are known, which of the following pairs of equations could be used to find the tensions?
The pair of equations that could be used to find the tensions is given as
m3a3 = Tb & m2a2 = Ta - Tb
How do we find tensions in a string?To find the force of tension in a string, we use the formula T = mg + ma.
We know that tension is described as the pulling force transmitted axially by the means of a string, a rope, chain, or similar object, or by each end of a rod, truss member, or similar three-dimensional object; tension might also be described as the action-reaction pair of forces acting at each end of said elements.
If the three boxes are pulled to the left by strings with negligible mass on a horizontal surface, the masses of the boxes are m1, m2, and m3, where m3>m2>m1. If the acceleration of the system and the pulling force are known, the we have the tension equation is given as m3a3 = Tb & m2a2 = Ta - Tb.
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Choose the combination of words that will properly complete the sentence. A(n) ____________ provided for a certain amount of time will make a mass change ________________. A Force; velocity B Energy; direction C Energy; velocity D Force; direction
A force provided for a certain amount of time will make a mass change direction.
option D is the correct answer.
What is Newton's second law of motion?
Newton's second law of motion states that the force applied to an object is directly proportional to the product of mass and acceleration of the object.
Also, this law states that the time rate of change of momentum is directly proportional to the applied force on an object.
Mathematically, Newton's second law of motion is given as;
F = ma
where;
m is the mass of the objectF is the applied force on the objecta is the acceleration of the objectF = (mv/t)
where;
v is the velocity of the objectt is the time of motionThus, we can conclude that the applied force can cause an object to change direction.
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find parametric equations and a parameter interval for the motion of a particle that starts at and traces the circle
In accordance with the stated assertion, the circle is traced counterclockwise rather than clockwise.
What is the motion process?A member's formal request to do anything is called a motion. The foundation of group decision-making is a motion. They direct discussion toward the choice being made. A motion should often be worded to take action or to convey an opinion.
What kinds of motion are there?According to the path of motion, linear movement is further divided into the following categories: Rectilinear motion refers to motion that follows a straight line as its course. Motion that follows a curved course is referred to as curvilinear motion.
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Two forces are acting on an object, f1 = 78 n upward and f2 = 26 n downward. What third force will cause the object to be in equilibrium?.
The magnitude of third force have to apply on the object be 56 N and it acting downwards.
What is force?The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
Given that:
forces are acting on an object in upward direction: f₁ = 78 N.
forces are acting on an object in downward direction: f₂ = 26N.
Let third force F will cause the object to be in equilibrium, then:
78 -26 + F = 0
⇒ F = - 56 N.
Hence the magnitude of third force be 56 N and it acting downwards.
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Although the main topic of this chapter is the motion of two particles subject to no external forces, many of the ideas [for example, the splitting of the Lagrangian into two independent pieces L =Lcm +Lrel as in Equation (8.13)] extend easily to more general situations. To illustrate this, consider the following: Two masses m and m2 move in a uniform gravitational field g and interact
Looks like a single particular mass in potential energy:
r1 = Position vector of m.
r2 = position vector of m₂
r3 = relative position vector
Rcom = Position vector of Centre of mass.
A Mass Intention is a request by a relative or friend to celebrate a Mass on a particular day or Sunday to appease the soul of the deceased. It can also demand a large amount of willpower for a living. At each Mass, he may pray to only one person as a concern.
Potential energy is stored energy that depends on the relative positions of the various parts of the system. When a spring is compressed or stretched its potential energy increases. A steel ball has more potential energy lifted across the ground than after it hits the ground. Potential energy is the energy stored or stored in an object or matter. This stored energy is based on position.
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you lift a book with your hand in such a way that it moves up at constant speed. while it is moving, what is the total work done on the book?
Your hand is used to raise the book so that it rises steadily. Since there is no net force exerting any force on the book, there is no total work.
A force is an influence that can alter an object's motion in physics. An object with mass can change its velocity, or accelerate, in response to a force. Force can also be conceptualized as a push or a pull. A force is a vector quantity since it has both magnitude and direction. At this level, using the terms "push" or "pull" to describe a force is entirely appropriate. A force is not something that an object "has in it" or that it "contains." A force is applied to one object by another. There are both living and non-living things in the concept of a force. A force is a push or pull that an object experiences as a result of interacting with another object.
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Which transaction cycle includes interactions between an organization and its suppliers?.
The exchanges between an organization and its suppliers are part of the spending cycle.
The spending cycle is the sequence of steps taken to obtain and pay for goods and services. These procedures entail determining what needs to be purchased, doing so, getting the items, and paying the sellers. The majority of the input to the expenditure cycle comes from the sales cycle, where purchasing needs are controlled by the quantity and kind of customer orders. The ordering and receiving of products and services is part of an organization's expenditure cycle. These items could be stock that the business intends to sell again or internal supplies to keep operations running properly.
The expenditure cycle includes the requisition of goods and services, supplier selection, ordering of goods and services, their receipt, and eventual payment for them.
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Slot machines pay off on schedules that are determined by the random number generator that controls the play of the machine. For example, on average, the machine might pay off every 100 pulls, but sometimes two pulls are required and sometimes several hundred pulls are required. Slot machines are a real-world example of a ________ schedule
Slot machines are a real-world example of a __variable ratio______ schedule.
What is variable ratio ?A variable-ratio schedule in operant conditioning is a partial reinforcement schedule where a response is reinforced after an arbitrary number of responses. 1 A consistent, high rate of response is produced by this schedule. A reward based on a variable-ratio schedule is one that can be found in gambling and lottery games.
The individual will continue to engage in the target behavior in variable ratio schedules because he is unsure of how many responses he must give before receiving reinforcement. This leads to highly stable rates and increases the behavior's resistance to extinction.
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A book is at rest on a gently-inclined ramp. Of the forces listed, identify which act upon the book
The weight of the book is being pulled down by gravity, and it is being propelled up by friction from the table.
What forces act on a book at rest?It's common to hear references to the "law of inertia" when discussing Newton's first law of motion. Matter has inertia, which keeps it moving or in motion and allows it to travel in a straight line.According to this rule, unless an unbalanced force acts upon an object, it tends to stay at rest or continue moving at a constant speed and direction.Unbalanced force, however, is not entirely clear. Unbalanced force: what is it?
Revisiting the book on the table, let's examine it now.Gravity and the table's opposing, equal forces balance one another because they are both acting in these two directions. The book is said to be in equilibrium because it is not in motion. Since there is no unbalanced force acting on the book, it continues to be in motion. after all the forces.An object will be at equilibrium when all forces acting upon it are in balance with one another; it will not move faster.Let's assume, however, that the book is pushed onto the table.The forces affecting the book are currently unbalanced.Both the downward force of gravity and the upward force of friction from the table acting on the book are equal in strength and act in opposite directions. These two forces act as counterbalances.However, no force exists to counteract the force of friction. Friction causes the book to move more slowly as it does. The book changes course due to an unbalanced force.To Learn more About gravity refer to:
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animation (which statement is incorrect?) select answer(s) refers to the transitions from one slide to another slide can be used to bring in objects onto a slide. can be used when removing objects from a slide. can be used for motion while staying on a slide.
Animation refers to the transitions from one slide to another slide
What is animation in PowerPoint ?Microsoft PowerPoint and other programmes are used to create games and movies in PowerPoint animation. Typically, the animation is done slide-by-slide or using Custom Animation after the artwork is created using PowerPoint's AutoShape features.
An animated PowerPoint presentation can help make the content more engaging and memorable. Entrances and exits are among the most prevalent categories of animation effects. To amp up the impact of your animation effects, you can also add sound.
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simple em waves a radio station in golden broadcasts at a frequency of 826 khz. at a point some distance from the transmitter, the magnetic-field amplitude of the electromagnetic wave from the station is 4.8 e-11 t. Find the electric field and wavelength.
The electric field of the simple EM radio wave is 14.46× 10⁻³ NC⁻¹ and the wavelength of the same wave is 363.1 m.
Frequency of wave = λ = 826 Khz
Amplitude of the wave = B = 4.8 × 10¹¹
Speed of light = c = v = 3 × 10⁸ m/s
Wavelength = λ =
= Using speed of EM wave equation,
= c = λ
= 3 × 10⁸ = 826 × 10³ λ
= λ = 363.1m
Now, the electric field of the EM radio wave is = E =
= Using electric field of wave equation E = Bv,
= E = 4.8 × 10¹¹ × 3 × 10⁸
= E = 14.46× 10⁻³ NC⁻¹
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