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I have provided a picture of the question
Answer:
7.8 x 10^18 electrons
Explanation:
1 Coulomb is 6.24 x10^18 charges multiply this by 1.25 to get the answer above
Energy in inductors: you need an inductor that will store 20 j of energy when a 3. 0-a current flows through it. what should be its self-inductance?
The self inductance can be calculated as 4.444 Henry.
The inductor will store energy = 20 joule,
current = 3 ampere.
What is Self inductance?The current carrying conductor which allows or opposes the change of flow of current is known as self-inductance. The rate of change of current can also be given through self inductance.
Formula can be given for the energy in the inductor as,
E = 1 / 2 × L × I² joule.
where as, E - Energy
L - Inductance
I - Current flowing through the coil.
The equation can be rearranged as,
L = 2 E/ I²
= 2 × 20 / 3²
= 40 / 9
Hence, L = 4.4444 Henry
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Consider a standing wave on a string. What is the distance between two adjacent nodes in terms of the wavelength λ of the standing wave?.
The distance between the two adjacent nodes = λ/2.
What is Wavelength?The length over which a wave's shape repeats is known as its spatial period, or wavelength. It is a characteristic of various spatial wave patterns as well as travelling and standing waves. It is the separation between two consecutive positions on a wave that correspond to the same phase, such as two close-by crests, troughs, or zero crossings. The reciprocal of wavelength is the spatial frequency. Wavelength is usually denoted by the Greek letter lambda (λ). Sometimes, modulated waves, their sinusoidal envelopes, or waves generated by the interference of several sinusoids are all referred to by the term wavelength.The distance between the two adjacent nodes = λ/2.
for the standing wave ,the distance between any two adjacent nodes or antinodes is 1/2 λ.
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What is the date and latitude for the greatest amount of insolation in the southern hemisphere?
The day of the year that has the greatest amount of insolation is June 20 or 21, and December 21 or 22 in the Southern Hemisphere.
Solar radiation that enters the Earth's atmosphere or surface is known as insolation. Only around 52% of this insolation reaches the surface of the earth. The remainder is reflected by the Earth's surface and dispersed by airborne particles, or it is absorbed by water vapor, dust, and clouds.
The portion of Earth south of the equator, a hypothetical horizontal line that circles the planet halfway between its poles, is known as the southern hemisphere. The Northern Hemisphere sees its peak insolation and summer on June 21 as a result of the Earth's continuous motion, with the highest overhead sun now over the Tropic of Cancer (23.5° N).
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Which three steps, placed in the proper order, are required for a nuclear chain reaction?.
There are three basic steps in a nuclear fission chain reaction are Initiation, Propagation, Termination.
What are the three steps of nuclear fission ?1. Initiation
The nuclear fission of [tex]U_{235} ^{92}[/tex] is started by the absorption of a neutron; a single atom must react in order for the chain reaction to begin.
2. Propagation:-
With each stage producing additional product, this component of the process is repeated repeatedly. When [tex]U_{236} ^{92}[/tex] splits apart, neutrons are released, which start the nuclear fission of more uranium atoms.
3. Termination:
The chain will come to an end eventually. Termination might take place if the reactant [tex]U_{235} ^{92}[/tex] is exhausted or if the subsequent neutrons in the chain leave the sample without being absorbed by [tex]U_{235} ^{92}[/tex].
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What is not visible on an electrocardiogram? select one: a. depolarization of the ventricles. b. depolarization of the atria. c. repolarization of the ventricles. d. repolarization of the atria
An ECG does not show atria repolarization.
To find the answer, we need to know more about the electrocardiogram.
What is an electrocardiogram?The electrical activity of the heart is captured by an electrocardiogram. It is a routine test that is painless and used to swiftly identify heart issues and keep track of the heart's health. Many common cardiac disorders can be diagnosed using an ECG, which is a painless, noninvasive procedure.Repolarization of the atria is not visible in an electrocardiogram.Thus, we can conclude that, the option d is correct.
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What does the inverse square law state?
The Inverse Square Law applies to Radiation. It states that the intensity of any radiation source is inversely proportional to the square of the distance from the source.
I would rather call it “an inverse square law”. Some things vary inversely as the square of something (usually distance) and some things don’t.
For instance, the quantity of light energy per second falling on a tiny area* is inversely related to the square of the distance from the source if a point light source emits light uniformly in all directions. The energy per second will decrease by four times with every twofold increase in distance for a certain area, and nine times with every threefold increase in distance. (Ideally, the area should be a sphere centered on the point source to make the distance clear; nonetheless, an approximate solution is a tiny plane area perpendicular to the line from the point source.) Therefore, light obeys the inverse square law (at least in Euclidean space).
The gravitational and electrical forces are some examples of entities that adhere to the inverse square law. On the other hand, gravitational and electrical potentials adhere to an inverse rule, whereby the potential must be reduced by a factor of two times the distance.
Thank you,
Eddie
The inverse square law states that the intensity or strength of a physical quantity decreases in proportion to the square of the distance from the source.
The inverse square law is expressed as:
Intensity = k / (distance)²
As you walk further from the source, the light from a point source loses intensity as it spreads out across a wider region.
The square of the distance between two objects' centers determines how much gravity there is between them. The gravitational pull between two things lessens as they are pulled apart more.
As you get further from the source of the music, the sound waves become less intense.
Inverse square law governs the strength of the magnetic and electric fields surrounding a charged particle or a wire carrying current.
An important tenet of physics is the inverse square law, which can be used to explain a variety of natural events.
Therefore, the intensity or strength of a physical quantity decreases in proportion to the square of the distance from the source.
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Which one of the following conditions is linked to poverty, insufficient food intake, poor food quality unsanitary living conditions, and improper feeding of infants and young children?
Obesity
Heart disease
Cancer
Protein-energy malnutrition
Protein-energy malnutrition is the condition linked to poverty, insufficient food intake, poor food quality, unsanitary living conditions, and improper feeding of infants and young children. The correct option is 4.
Protein-energy malnutrition (PEM) is a type of malnutrition that occurs when there is a deficiency in both protein and energy (calories) intake. It is often associated with impoverished and disadvantaged populations who lack access to an adequate and balanced diet. PEM can lead to severe health consequences, including stunted growth, weakened immune system, and increased susceptibility to infections and diseases.
Efforts to combat PEM include improving food security, promoting better nutrition practices, and enhancing access to essential nutrients through supplementation and fortification of food. Addressing poverty, improving living conditions, and ensuring proper healthcare and education are also crucial in preventing and treating protein-energy malnutrition in vulnerable populations.
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Find the work done by the force field f! (x, y) = x sin(y)!i y!j on a particle that moves along the parabola y = x2 from (−1, 1) to (2, 4)
The work done by the force field f! (x, y) = x sin(y)i + yj on a particle that moves along the parabola y = x2 from (−1, 1) to (2, 4) will be 15/2 + 1/2 cos1 -1/2 cos4
Work done on a body is equal to the increase in the energy of the body, for work transfers energy to the body. If, however, the applied force is opposite to the motion of the object, the work is considered to be negative, implying that energy is taken from the object.
The units in which work is expressed are the same as those for energy, for example, in SI (International System of Units) and the metre-kilogram-second system, joule (newton-metre)
Equation of parabola : y = [tex]x^{2}[/tex]
dy = 2x dx
f(x , y) = x sin (y) i + y j
= [tex]\int\limits^2__{} \, -1[/tex] [tex]\ {x sin (x^{2} )} \, dx[/tex] + [tex]\int\limits^2__{} \, -1[/tex] 2x . [tex]x^{2}[/tex] dx
= [tex]\int\limits^2__{} \, -1[/tex] [tex]\ {x sin (x^{2} )} \, dx[/tex] + [tex]\int\limits^2__{} \, -1[/tex] 2 [tex]x^{3}[/tex] dx
= 1/2[tex]x^{4}[/tex] * ( - 1/2 cos [tex]x^{2}[/tex] ) + [tex]x^{4}[/tex] / 2
= 8 - 1/2 + (-1/2 cos 4 + 1/2 cos 1)
= 15/2 + 1/2 cos1 -1/2 cos4
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What is the total energy transported per hour along a narrow cylindrical laser beam 2. 40 mm in diameter, whose b-field has an rms strength of 1. 30×10−10 t?
The total energy transported per hour along a narrow cylindrical laser beam 2. 40 mm in diameter, whose b-field has a RMS strength of 1. 30×10−10 will be 6.40 × 10⁻⁸J.
Intensity for an electromagnetic wave is energy crossed per second in the direction perpendicular to the propogation of electromagnetic wave which is passing per unit area.
The Intensity for an electromagnetic wave is given by:
I = cε₀E₀²
where c is the speed of light,
E₀ is the maximum value of the electric vector
ε₀ is the permitivitty of medium
I is the intensity
We know that, E = Bc
where, B is the magnetic field
Hence on substituting into the formula:
I= cε₀E₀²
⇒ I= c³ε₀B²
Given,
B = 1.30×10⁻¹⁰ T
So,
I = (3 X 10⁸)³ X (8.85 X 10⁻¹²) x(1.10×10⁻¹⁰)²
⇒ I = 96.37 × 10⁻⁸ W/m²
Energy transported per unit hour is :
E= AIt
where A is the area of beam = πr²
r is the radius of beam used, r = 1.20mm = 0.0012m
t is the time = 1hr = 3600s
On substituting,
E = 2.891 × 10⁻⁶ × πr² × 3600
E = 2.891 X 10⁻⁶ × 3.14 × (0.0012)² x (3600)
E = 6.40 × 10⁻⁸J
Hence, total energy transported per hour along a narrow cylindrical laser beam is 6.40 × 10⁻⁸J.
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What role does inequality play in a society’s tendency toward rigidity – that is, a tendency to not adapt to mounting problems and pressures?
Social inequality, as defined by sociologists, is the unequal distribution of desirable resources, rewards, and positions in a society.
What is social inequality?
Key to the concept is the notion of social differentiation. People are classified and differentiated based on social features such as differences, identities, and roles, which has an impact on social inequality. Social difference on its own need not imply the segregation of people into classes based on privilege, rank, and power. Social differentiation, however, forms the foundation of social inequality when a social category—such as class, occupation, gender, or race—puts people in a position where they may demand a larger share of resources or services.Learn more about the social inequality with the help of the given link:
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What electronic components are often used to prevent large voltage spikes from being produced when the current flow through an inductor is suddenly terminated?
The electronic components are often used to prevent large voltage spikes from being produced when the current flow through an inductor is suddenly terminated is diode.
Inductive fly back refers to the voltage spike created by an inductor when its power supply is suddenly reduced or removed. This voltage spike occurs because the current flowing through the inductor cannot change instantly. The rate at which the current can change is limited by the inductor's time constant.
Diodes are used to protect circuits by limiting the voltage and to also transform AC into DC. Semiconductors like silicon and germanium are used to make the most of the diodes. Even though they transmit current in a single direction, the way with which they transmit differs. There are different kinds of diodes and each type has its own applications.
Voltage spikes occur when the current flow through an inductor stops and the current decreases exponentially. The electronic device "diode" is used to prevent induced voltage spikes because of the current flow in the forward direction and stops the current in the reverse direction.
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a stone is dropped from 45 m height of tower. it takes 3 second to reach ground. calculate acceleration due to gravity
Answer: 10 m/s^2
Explanation:
So I think the answer might be 10 m/s^2, following the equation: d=1/2a(t^2).
Variables:
d=45(m)
t=3(s)
a=?
We know the variables "d" and "t" in the equation and have to solve for "a".
So when we plug it in it's:
45=1/2(a)(3^2)
45=1/2(a)(9)
45=4.5(a)
10=(a)
A yellow train of mass 100 kg is moving at 8 m/s toward an orange train of mass 200 kg traveling in the opposite direction on the same trac at a speed of 1 m/s. They collide and stick together! What is the velocity of
the new combined train?
A. 8 m/s
B. 2 m/s
C. 4 m/s
D. 10 m/s
Answer:
B. 2 m/s
Explanation:
With all collisions, momentum is conserved. This is known as the Conservation of Momentum.
To find the momentum of an object, multiply its mass by its velocity.
[tex]m_yv_y+m_ov_o=(m_y+m_o)v_f[/tex], solving for vf
Plugging in numbers, we get:
[tex]100\cdot 8 + 200(-1)=(100+200)v_f[/tex]
[tex]300v_f=600,\\v_f=\boxed{2\text{ m/s}}[/tex]
A body accelerate uniformly from rest at 2m/s^2.calculate its velocity after traveling 9m.
Answer:
The final velocity of the body is 6 m/s.
Explanation:
To solve this question, we can use one of the kinematic equations. Let's go over what variables we know and what we are trying to find. We know the acceleration (a = 2m/s²), the displacement (Δx = 9m), and the initial velocity (v1 = 0 m/s). We are trying to find the final velocity, v2.
The equation that uses all of these variables is the following:
v2² = v1² + 2*a*Δx
If we plug in the given values and simplify, we get:
v2² = 2*(2)*(9)
v2² = 36
Finally, we can take the square root of both sides to get:
v2 = 6 m/s
Therefore, the answer is 6 m/s.
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A rock with a mass of 17 kilograms is put aboard an airplane in new york city and flown to boston. how much work does the gravitational field of the earth do on the rock?
The amount of work done by the gravitational field of the earth do on the rock is 166.6d (J).
What is work done?Work is done when energy is transferred from one store to another.
Work is also done when a force causes an object to move.
The amount of work done by the gravitational field of the earth do on the rock is calculated as follows;
W = Fd
where;
F is gravitational force of the rockd is the displacement of the rockW = (mg)d
W = (17 x 9.8)d
W = 166.6d
Thus, the amount of work done by the gravitational field of the earth do on the rock is 166.6d (J).
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Overhead is applied to work in process based on the predetermined rate times standard activity allowed in a ______ costing system
Overhead is applied to work in process based on the predetermined rate times standard activity allowed in a standard costing system.
A standard cost is a fixed price per unit of direct materials, fixed price per direct labour hour, and fixed price per hour of overhead that is based on predicted quantities of direct materials and projected direct labour time.
Top management may find a standard cost system useful for planning and decision-making. easier and more reasonable inventory measurements. Compared to an actual cost system, a standard cost system makes inventory valuation simpler. Unit costs for batches of identical products may differ significantly under an actual cost system.
Therefore,Overhead is applied to work in process based on the predetermined rate times standard activity allowed in a standard costing system.
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In a region where the electric field is uniform and points in the x direction, the electric potential is -2000 v at x = 8 m and is 400 v at x = 2 m. what is the magnitude of the electric field?
The magnitude of the uniform electric field, if the electric potential is -2000 v at x = 8m and is 400 v at x = 2 m in x direction will be, 400V/m.
To find the answer, we have to know more about the electric field.
How to find the magnitude of uniform electric field?a space where other charged particles or things would be forced to move away from a charged particle or item is called the electric field.The expression for electric field in terms of potential V and the distance x can be written as,[tex]E=\frac{dV}{dx}[/tex]
where, dV is the potential difference at two different points of the conductor and dx is the difference of the points.
Thus, the magnitude of electric field can be written as,[tex]|E|=|-(\frac{dV}{dx} )|=|-(\frac{-2000-400}{8-2} )|\\\\|E|=400V/m[/tex]
Thus, we can conclude that, the magnitude of the uniform electric field, if the electric potential is -2000 v at x = 8m and is 400 v at x = 2 m in x direction will be, 400V/m.
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The model of a pot of water being heated on a stove shows thermal energy transfer. Which of the following BEST describes how thermal energy is transferred to the water in the pot?
A
Water in the pot is heated by conduction. Thermal energy from the pot is directly transferred to the water at the top of the pot through conduction.
B
Water in the pot is heated by conduction. Thermal energy from the burner is transferred directly to the water at the bottom of the pot through conduction.
C
Water in the pot is heated by convection. Water molecules at the top of the pot warm up and sink while cooler water molecules rise to the top of the pot, creating convection currents.
D
Water in the pot is heated by convection. Water molecules at the bottom of the pot warm up and rise while cooler water molecules sink to the bottom of the pot, creating convection currents.
D. Water in the pot is heated by convection. Water molecules at the bottom of the pot warm up and rise while cooler water molecules sink to the bottom of the pot, creating convection currents.
What is convection current?Convection currents are flowing fluid that is moving because there is a temperature or density difference within the material.
Convection heat transfer takes place only in liquids and gases.
During heat transfer by convection, the heated air will rise to the top due o its lower density while the cooler air will sink to the bottom due to its higher density.
Thus, for the model of a pot of water being heated on a stove that shows thermal energy transfer, the heat transfer occurs when the water in the pot is heated by convection. Water molecules at the bottom of the pot warm up and rise while cooler water molecules sink to the bottom of the pot, creating convection currents.
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Heat is transferred to the water. The water molecules which are in the pot become more active, and the temperature of the water rises.
What is the Kinetic energy?
Kinetic energy is the energy of the objects which is present due to the motion of the object. Kinetic energy is proportional to the mass and velocity of the object. The SI unit of Kinetic energy is Joule (J).
The kinetic energy is possessed due to the motion of the particles. The kinetic energy is directly proportional to the temperature of objects. The kinetic energy of the particles increases with the rise in temperature of object or solution.
In the given situation, the pot of water is placed on the stove. Then, the heat is transferred to the water in pot. The water molecules will move faster with the rise in temperature of the water. The water molecules will have greater amount of kinetic energy due to increase in temperature.
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Which turbine takes the lesser amount of time to rotate through 1. 0 radian of angular displacement?
Both the turbines take same amount of time to rotate through 1. 0 radian of angular displacement.
Given,
[tex]R_{A}[/tex] = [tex]2R_{B}[/tex]
[tex]V_{A}[/tex] = [tex]2V_{B}[/tex]
As, angular velocity is, ω
So, ω[tex]_{A}[/tex] = [tex]V_{A}[/tex] / [tex]R_{A}[/tex]
ω[tex]_{A}[/tex] = 2[tex]V_{B}[/tex] / 2[tex]R_{B}[/tex]
ω[tex]_{A}[/tex] = [tex]V_{B}[/tex] / [tex]R_{B}[/tex]
also, ω[tex]_{B}[/tex] = [tex]V_{B}[/tex] / [tex]R_{B}[/tex]
And angular displacement is , θ
θ = ω / t
t = θ / ω
[tex]t_{A} = t_{B}[/tex] = [tex]R_{B}[/tex] / [tex]V_{B}[/tex]
Therefore, Both the turbines take same amount of time to rotate through 1. 0 radian of angular displacement.
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What is the upper limit to the mass of a white dwarf? there is no upper limit. there is an upper limit, but we do not yet know what it is. 1.4 solar masses 1 solar mass 2 solar masses
Answer:
Around [tex]1.4[/tex] solar mass.
Explanation:
In a white dwarf, electron degeneracy prevents the star from collapsing into itself. However, if the mass of the star exceeds the Chandrasekhar Limit, gravity would overcome electron degeneracy and star would collapse further.
The value of the Chandrasekhar Limit is approximately [tex]1.4\; M_{\odot}[/tex] ([tex]1.4[/tex] times the mass of the sun.) While this mass is the maximum possible mass of a stable white dwarf, the original mass of the star that formed this white dwarf tends to be much greater.
When full, the innermost electron shell of argon contains ________ electrons, and the outermost shell contains ________ electrons.
The innermost electron shell of argon contains 2 electrons, and the outermost shell contains 8 electrons.
To find the answer, we have to know more about the electronic configuration.
What is the electronic configuration of Argon?As we know that, the element Argon in the periodic table has an atomic number of 18.Since its atomic number is 18, it should have 18 number of electrons in the elemental state.The first shell or K shell of Argon can carry 2 electrons, and rest of the 16 electrons will filled in the L and M shells.For, L has a maximum number of 8 electrons, and thus, the rest 8 will move to M.Thus, we can conclude that, the innermost electron shell of argon contains 2 electrons, and the outermost shell contains 8 electrons.
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A car traveling at a speed of 30. 0 m/s encounters an emergency and comes to a complete stop. how much time will it take for the car to stop if it decelerates at -4. 0 m/s^2?
With the help of the motion equation, it is calculated that if the vehicle slows down at a pace of -4.0 m/s², stopping will take 7.5 seconds.
Motion equation:
Three motion equations commonly referred to as the rules of constant acceleration, exist for a uniform acceleration. In order to derive the components such as displacement(s), velocity(initial =u and final = v), time(t), and acceleration(a), these equations are utilized. They are therefore only applicable in straight-line motion with constant acceleration. Here are the three equations:
v=u+at or, v = u-atv²=u²+2as s= ut+1/2 at²Calculating the time :
The formula for the motion equation is
v = u - at
v = final velocity
u = initial velocity
a = acceleration
t = time
Here, v = 0 ,as the automobile comes to a stop
u = 30 m/s
a = -4 m/s²
So, v = u - at
⇒0 = 30 - 4t
⇒4t = 30
⇒t = 30/4
⇒t = 7.5 seconds
Therefore, the required time calculated is 7.5 seconds.
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PLEASE ANSWER ASAP!
Lai is trying to listen to a radio station for weather updates during a storm. The storm is causing electrical interference that affects radio waves. She knows that the weather station broadcasts both an analog and a digital radio signal.
Which signal would most likely be clearer during this storm, and how do you know?
(Choice A)
The analog signal because it can always be heard even when interference is high.
(Choice B)
The analog signal because interference can be filtered out of the signal.
(Choice C)
The digital signal because it can always be heard even when interference is high.
(Choice D)
The digital signal because interference can be filtered out of the signal.
The digital signal can always be always be heard even when interference is high. Option D
What is a radio signal?A radio signal makes use of the radio waves. The radio waves are long wavelength electromagnetic waves which are able to travel across a long distance. The signal can be transmitted in both analogue and digital formats.
However, the digital signal seems to be free from certain interferences that are caused by the scattering of the waves across distances. This could diminish the quality of sound that is heard.
Thus, the digital signal can always be always be heard even when interference is high.
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Static electric fields are caused by charged particles. What characterizes a positively charged particle?
A
The atoms which compose the particle will have more electrons than protons.
B
The atoms which compose the particle will have the same number of electrons as protons.
C
The atoms which compose the particle will have more protons than electrons.
D
By convention, positively charged particles always have all their magnetic dipoles aligned with the north pole.
Static electric fields are caused by charged particles when the atoms which compose the particle will have the same number of electrons as protons.
Each point in space has an electric field associated with it when the charge of any kind is present. The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the strength and direction of the electric field.
Both the electromagnetic wave produced by a radio broadcast monopole antenna and the field created in the dielectric of a parallel-plate capacitor are examples of electric fields (which create a time-varying field). Every place in space where a charge, regardless of its shape, is present is said to have an electric field, which is an electric attribute. The electric field's equation is given as E = F / Q.
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A mass m is attached to an ideal massless spring with spring constant k. In experiment 1 the mass oscillates with amplitude a, and period t. A student grabs the mass and brings it to rest before starting experiment 2. In experiment 2, the mass is set to oscillate with a larger amplitude of 3a. What is the period of the oscillation in experiment 2?.
The answer is time period of spring mass system does not depend on its amplitude.
Does the oscillation's amplitude affect the period?The period does not depend on the Amplitude. The greater the amplitude, the more the distance to be covered, but it will do so more quickly. The period won't change since the effects of distance and speed cancel each other out. As the amplitude rises, the mass moves farther with each cycle. Therefore, increasing the amplitude has no overall impact on the oscillation's period.
What is oscillation?A kind of energy called sound is created when objects vibrate. For it to spread, a medium is needed. As a result, sound cannot travel through a vacuum because there is nothing for the sound waves to travel through. The object's back and forth movement creates the sound. Sound vibration is the name for this. Additionally called oscillatory motion. Oscillation describes the regular rhythmic back-and-forth movement.
What is amplitude and time period of oscillation?The time required to complete a task is referred to as a period. An occurrence is referred to as periodic if it happens frequently. The period is the length of time it takes for a periodic event to repeat itself. The particle's time period is determined by how long it takes it to complete one vibration cycle.
A sound wave's amplitude measures the height of the wave. When a sound is made, the maximum displacement of the medium's vibrating particles from their mean position determines the amplitude of the sound wave. It is the separation between the wave's crest or trough and its mean location.
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A device that assures the delivery of electric power without interruption is a(n)?
how to calculate that
Explanation:
Acceleration= 15-3/2
=6m/s²
Answer:
acceleration = [tex]\bf 6 m/s^2[/tex]
Explanation:
We can calculate the acceleration of an object using the following formula:
[tex]\boxed{acceleration = \frac{Resulatant \space\ force}{Mass}}[/tex].
The resultant force is the effective force that is being applied to an object. In this case, there is a 15N force to the right, and a 3N force to the left.
∴ Resultant force = 15N - 3N
= 12N
Now we can use the formula for above formula to calculate acceleration:
[tex]acceleration = \frac{12}{2}[/tex]
= [tex]\bf 6 m/s^2[/tex]
A charged point particle is placed at the center of a spherical gaussian surface. the electric flux is changed if:
The electric flux is changed only if we change the charge.
What is the expression of electric flux?As per gauss law, total electric flux link through a surface is equal to (1/ε0) × charge.Mathematically, electric flux = q/ε0q = total charge enclosed by the gaussian surfaceHere the electric flux is directly proportional to the charge, so on changing charge, the electric flux changes.Thus, we can conclude that the electric flux is changed only if we change the charge.
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A sealed syringe contains 60 cm^{3} of air at a pressure of 1.0 atmosphere. The piston is pushed in slowly until the volume is 40 cm^{3}. What is the pressure now?
The new pressure of the air in the syringe is 1.5 atm.
What is the new pressure of the syringe?The new pressure of the air in the syringe is calculated as follows assuming the temperature remains constant;
P2 = P1V1/V2
P2 = 1 * 60/40
P2 = 1.5 atmospheres
In conclusion, pressure varies inversely as volume.
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