Energy is transferred to the charge is 120J
What is energy?
Energy is a general term that we use frequently in our daily lives. Although the term "energy" is frequently misused, it has a specific physical meaning. In physics, energy is defined as something's ability to accomplish work. Energy can take various forms. All energy is either kinetic or potential. Let us take a closer look at what energy is and the many sorts of energy in this post.
On Earth, there are various types of energy. On Earth, the sun is considered the elemental form of energy. Energy is a quantifiable property in physics that can be transferred from an item to perform work. As a result, we can define energy as the ability to perform any type of physical activity.
According to the laws of energy conservation, "energy cannot be generated or destroyed; it can only be transformed from one form to another." Joule is the SI unit of energy. One of the fundamental rules of physics is the law of energy conservation. It regulates the movements of individual atoms in a chemical process at the microscopic level. According to the rule of conservation of energy, "the entire energy of the system is conserved in a closed system, i.e., a system that is separated from its surroundings." Even when energy transformation happens, the overall energy in a system is conserved, according to the law. Energy can't be created or destroyed.
E = Q X V
E=10X12
E=120J
Therefore, energy is transferred to the charge is 120J
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how could you generate a larger emf with the bar magnet? 2. you should have observed that the voltage peaked in one direction for moving the magnet in and peaked in the other direction for moving the magnet out. why is this? 3. by inducing positive and negative voltage peaks in your coil, determine the
To generate a larger emf with the bar magnet one should move the magnet faster through the coil and add more turns to the coil.
What is Emf?An energy transfer to an electric circuit per unit of electric charge, expressed in volts, is known as electromotive force in electromagnetism and electronics. Electrical transducers are devices that create an emf by transforming non-electrical energy into electrical energy.
What is a Bar magnet?A rectangular section of an object with permanent magnetic qualities that is formed of ferromagnetic material is known as a bar magnet.
A shift in magnetic flux is an induced EMF's most fundamental cause. Placing a coil that is constantly moving and conducting current in a magnetic field that is static and stable. EMF will be produced as a result of the area vector changing as a result of this.
You should have observed that the voltage peaked in one direction for moving the magnet in hand peaked in the other direction for moving the magnet out this is because according to Faraday's Law, a voltage is produced in a coil of wire when a magnet is moved inside of it, altering the magnetic field and magnetic flux through the coil. The galvanometer deflects to the left in the example below as the magnet is moved inside the coil in response to the growing field.
Hence, To generate a larger emf with the bar magnet one should move the magnet faster through the coil and add more turns to the coil.
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A cessna 172 plane that is used to transport up to four VIPs in 2km in the air. If the potential energy of the VIP plane with three VIP onboard is 800 J, what is the combined massof the cessna and passanger
The combined mass of the cessna plane and the passangers, with a potential energy of 800 J is 0.041 kg.
What is mass?Mass can be defined as the quantity of matter a body contains.
To calculate the combined mass of the cessna plane and passangers, we use the formula below
Formula:
P.E = Mgh......... Equation 1Where:
P.E = Potetial energy M = Combined mass of the cessna plane and the passangersg = Acceleration due to gravityh = Height.Make M the subject of the equation
M = P.E/gh............. Equation 2From the question,
Given:
P.E = 800 Jh = 2 km = 2000 mg = 9.8 m/s²Substitute these values into equation 2
M = (800)/(200×9.8)M = 0.041 kgHence, the combined mass of the cessna plane and the passangers is 0.041 kg.
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A charming friend of yours who has been reading a little bit about astronomy accompanies you to the campus observatory and asks to see the kind of star that our sun will ultimately become, long, long after it has turned into a white dwarf. Why is the astronomer on duty going to have a bit of a problem satisfying her request?.
The astronomer on duty going to have a bit of a problem satisfying your astronomy reading friend's request because it becomes too cold and dark to emit visible light.
Long after a star turns into a white dwarf, it will become too cold due to no fusion of atoms happening in its core to provide any energy. The light emitted initially is due to the hotness before the fusion has stopped to take place.
The hotness eventually cools off due to surrounding temperature. As the temperature reduces the light emitted will also decrease. After it fully becomes cold it will stop emitting light and so it cannot be seen.
Therefore, the astronomer on duty going to have a bit of a problem satisfying your astronomy reading friend's request because it becomes too cold and dark to emit visible light.
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suppose each of the following objects could collapse into a black hole. each black hole would have a sphere around it that is the limit for escape -- once you are inside this region, you cannot get away. for which object would this region be the largest in diameter?
Suppose each of the following objects could collapse into a black hole. Each black hole would have a sphere around it that is the limit for escape -- once you are inside this region, you cannot get away. An entire galaxy of stars would be this region that will be largest in diameter.
Strong magnetic field surrounding a black hole. A black hole is a very dense object whose gravity is so powerful that nothing can escape from it, not even light. The smallest speed at which anything needs move in order to escape the gravitational field of an object is known as the "escape velocity" for every object in space.
Most black holes are created from the remains of massive stars that explode in supernovae. Smaller stars eventually develop into dense neutron stars, which lack the mass necessary to confine light.
The discovery, which is slightly under 1,600 light-years away, raises the possibility that binary systems contain a substantial number of dormant black holes. The closest black hole to Earth so far has been identified as Gaia BH1, which may be seen in this artist's conception close to its Sun-like partner star.
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A cart has a net horizontal force acting on it to the right Jon says taht it must be moving to the right. jonne says no, it could be moving in either direction. Are either of these two correct? If so, explained and described the velocity and acceleration if any of the cart
Since the net force acts towards the right, the object would move towards the right and the acceleration would also be towards the right.
What is the net force?The term net force has to do with the actual force that acts on a body. We know that a force is a vector quantity and that a system of forces could act on an object.
When more than one force is acting on an object, it then follows that the object would remain at rest or in a state of uniform motion if the forces are balanced.
If the forces are not balanced, the object would move in the direction of the net force that acts on the body.
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on its highest power setting, an 880-watt microwave oven heats a bowl of spaghetti. (a) find the intensity of the microwaves, given they are absorbed over a circular area 16 cm in diameter. w/m2 (b) what is the peak electric field strength of the microwave? v/m (c) what is its peak magnetic field strength? t
The intensity is 4400 w/m2 , strength of the microwave is 1820 V/m and magnetic field strength is606.66× 10-8 T .
What is intensity?
The power transferred per unit area is known as the intensity or flux of radiant energy, where the area is measured on a plane perpendicular to the direction of the energy's propagation. It is measured in watts per square metre (W/m2) in the SI standard.
a.) Average intensity=I
I=P/A where, P= power
A= area of the circle
= π r2
As we are given the diameter and r= d/2 , so area= π d2/4
d= 16cm= 0.16 m
area = 3.14× (0.16)×2 /4 = 0.20
P= 880W
I= 880/0.2= 4400 w/m2
b.) I =0.5 c e0 Emax2
Where c = speed of light = 3 108 m/s
e0= 8.85×10-12
Emax= peak of electric field =√ 2I / c ×e0
= √2×4400/(3×108)×8.85 ×10 -12
⇒1820 V/m
Bmax= peak of magnetic field strength
Bmax = Emax/ c
⇒1820/ 3× 108
⇒606.6 ×10 -8 T
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a kilogram of mercury is poured into a kilogram of water. assume that all heat transfer is between the water and the mercury and not from the outside or to the outside. given that the thermal conductivity and specific heat of mercury are typical of a metal, the final temperature of the water-mercury system will be
The generation, consumption, conversion, and exchange of thermal energy across physical systems is the focus of the thermal engineering field of study known as heat transfer.
Despite mercury having a far higher heat conductivity than water, this doesn't really matter in this situation. Here, H represents the heat transmission. Then, a key factor in this situation is the particular temperatures of these compounds. Compared to mercury, water has a substantially higher specific heat. So, unlike how the temperature of mercury has changed, the temperature of water won't fluctuate as much. Since the mass of both substances is the same, the system's end temperature will be considerably closer to the water's initial temperature.
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two objects in thermal equilibrium with a third object are in thermal equilibrium with each other."" which law of thermodynamics is this?
The zeroth law of thermodynamic states that if two systems are in thermal equilibrium in equilibrium. with a third system, they are. with each other".
One of the four fundamental laws of thermodynamics is the zeroth law. It offers a stand-alone definition of temperature that excludes the second law's concept of entropy. Ralph H. Fowler created the law in the 1930s, many years after the first, second, and third laws had gained widespread acceptance.
According to the zeroth law, if two thermodynamic systems are in thermal equilibrium with one another and with a third system separately, then all three systems are in thermal equilibrium with one another.
The mathematical representation of thermodynamics depends on the zeroth law. It mathematically transforms the relationship between systems' thermal equilibrium into an equivalence relation, which can symbolize the equality of a particular quantity related to each system.
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if the electric field emitted by a radio tower has an amplitude of 239 v/m, what is the amplitude of the corresponding magnetic field?
If the electric field emitted by a radio tower has an amplitude of 239 v/m, the amplitude of the corresponding magnetic field will be H = 0.64 A/m
E / H = [tex]\sqrt{mu0 / epsilon 0 }[/tex]
238 / H = [tex]\sqrt{4*3.14*10^{-7} / 8.85 * 10^{-12} }[/tex]
238 / H = 374
H = 0.64 A/m
The amplitude of the corresponding magnetic field will be H = 0.64 A/m
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An amusement park ride goes a circle at 10m/s. If its centripetal acceleration is 5m/s^2, then how big is the radius of the circle?
The radius of the circle is equal to 20m if the centripetal acceleration is 5m/s².
What is centripetal acceleration?The centripetal force is perpendicular to the velocity in a circular motion. If the particles change their speeds in a circular motion then acceleration is produced and the acceleration from directing toward the center.
The mathematical Formula for the centripetal acceleration used:
a = v²/r
Where 'r' is the radius of the circle and a is the centripetal acceleration.
Given, the velocity of the ride, v = 10 m/s
The centripetal acceleration, a = 5 m/s²
The radius of the circle in which the ride is going on is :
r = v²/a
r = (10)²/5
r = 20 m
Therefore, the radius of the circle is equal to 20m.
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based on coulomb's law of electrostatic attraction of oppositely-charged species, which of the following chlorine-containing compounds would be predicted to have the greatest (most exothermic) lattice energy? group of answer choices
The Correct option is (c) .
NaCl , has the largest (most exothermic) lattice energy by applying Coulomb's law.
Using Columbus' law of electrostatics, we have
F = q₁× q₂ / r²
where F ---> attraction between oppositely charged particles
lattice energy: strength of bond between oppositely charged ions , depends on the distance between the centers of ions when they are packed into a crystal, and the bond strength can be determined by the lattice energy.
We need to know how the lattice energy is affected by the properties of the ions. The increase in lattice energy is two properties we usually focus on. As the ion charge increases, the lattice energy increases. Reducing the size of the ions increases the lattice energy. As the ion becomes smaller, the lattice energy increases. They are all ions. Cations have the same charge as all other cations. We can see the size of the ion. The smallest cation is the one Sodiam from other cations.
Hence, NaCl have largest lattice energy.
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Complete Question
Based on Coulomb's Law of electrostatic attraction of oppositely- charged species, which of the following chlorine-containing compounds would be predicted to have the greatest (most exothernic) lattice energy? a)KCI
b)CaCl₂
c) NaCl
d)MgCl₂
The lower the ph value the larger the concentration of hydrogen ions
The lower the ph value the larger the concentration of hydrogen ions.
What is ph value?In chemistry, pH, historically denoting "potential of hydrogen", is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions are measured to have lower pH values than basic or alkaline solutions.
A pH of 7 is neutral. A decrease in pH below 7 shows an increase in acidity (hydrogen ions), while an increase in pH above 7 shows an increase in alkalinity (hydroxyl ions). Each pH unit represents a 10-fold change in concentration.
The lower the ph value the larger the concentration of hydrogen ions.
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A baeball i thrown vertically into the air. What i the velocity and acceleration
of the ball at it highet point
The correct answer is velocity and acceleration at highest point of the ball is 0 m/s and 9.8 m/s² respectively.
How velocity and acceleration is related?
The rate of change of displacement is known as velocity. The rate at which velocity changes is called acceleration. Due to the fact that it includes both magnitude and direction, velocity is a vector quantity. As the rate at which velocity changes, acceleration is likewise a vector quantity.
When a body is thrown vertically upward, it will travel along a route determined by the Earth's gravitational pull. Projectile motion is described as the motion. The gravitational pull and the air drag force both work against the ball when it is in motion.
Thus, velocity and acceleration at highest point will be 0 m/s and 9.8 m/s² respectively.
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A 70. 0-kg man jumps 1. 00 m down onto a concrete walkway. His downward motion stops in 0. 0200 seconds. If he forgets to bend his knees, what force is transmitted to his leg bones?.
The force transmitted to the man's leg bones during his downward motion is 14,945 N
State the equations of motion
The fundamentals of an object's motion, such as its position, velocity, or acceleration at different periods, are described by kinematics equations of motion or Newton’s equations of motions.
An object's motion in 1D, 2D, and 3D is controlled by these three equations of motion-
First law of equation: v = u + at
Second law of motion: s = ut + at^2/2
Third law of motion: v^2=u^2 + 2as.
In the question, the following informations are given,
Mass of the man, m = 70kg
Height the man jumps, h = 1.00 m
Time taken to reach the ground, t = 0.02 seconds
Using the 3rd equation of motion we find out the velocity with which the man comes down as-
v^2 = u^2 +2gh
v^2 = 0 + 2 x 9.8 x 1
v^2 = 19.6
v = √19.6
= 4.27 m/s
Since force is determined by both time and acceleration therefore using the formula of force we find out the velocity as-
F = mass x acceleration
= mass x velocity/time
= 70 x 4.27/ 0.02
= 14,945 N
Hence, the force transmitted to his leg bones is 14,945 N
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satellites in near-earth orbit experience a very slight drag due to the extremely thin upper atmosphere. these satellites slowly but surely spiral inward, where they finally burn up as they reach the thicker lower levels of the atmosphere. the radius decreases so slowly that you can consider the satellite to have a circular orbit at all times.
Because it spirals inward, it slowly decreases its orbital radius. So so long as a satellite acts in a round orbit, it's velocity is inversely proportionate.
A satellite or synthetic satellite tv for pc is an object deliberately positioned into orbit in outer area. besides for passive satellites, most satellites have an energy technology system for device on board, including solar panels or radioisotope thermoelectric generators.
A satellite is a moon, planet or machine that orbits a planet or star. for example, Earth is a satellite because it orbits the sun. Likewise, the moon is a satellite tv for pc as it orbits Earth. commonly, the word satellite refers to a device this is released into space and movements around Earth or another frame in area.
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Can someone help me out here please
Students in a physical science class are measuring the velocity of a model car. Their data is shown in the table.
Based on the data table, what would the acceleration be at 3. 5 seconds?
The acceleration of the car at 3.5 seconds is determined as 10 m/s².
option (D) is the correct answer.
What is the acceleration of the car?The acceleration of the car is the change in velocity of the car with time.
Mathematically, acceleration is given as;
a = Δv/Δt
where;
Δv is the change in velocity of the carΔt is change in time of motion of the cara = (v - u) / (t₂ - t₁)
where;
v is the final velocityu is the initial velocityt₁ is the initial timet₂ is the final timea = (15 - 5) / (1.5 - 0.5)
a = 10 m/s²
The acceleration of the car at 3.5 seconds can be calculated by applying extrapolation method as shown below;
a = (v - u) / (t₂ - t₁)
where;
v is the final velocity at 3.5 seconds = 35 m/su is the initial velocity at 1.5 seconds = 15 m/st₁ is the initial time = 1.5 secondst₂ is the final time = 3.5 secondsa = (35 - 15) / (3.5 - 1.5)
a = (20) / (2)
a = 10 m/s²
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What type of interference occurs when the crests of one wave overlaps with the crests of another wave?.
When the crests of two waves overlap, constructive interference takes place. The crests of the waves combine as they pass through one another to create a wave with a larger amplitude. When two troughs come into contact, the same thing may happen.
A phenomenon known as interference occurs when two waves merge by adding their displacements at each and every point in space and time to create a new wave that may have a larger, smaller, or same amplitude. The amplitudes are progressive if one of the waves' crests coincides with another wave's crest. The resultant amplitude would double if the two waves' amplitudes were equal. Remember that the square of the amplitude determines how much light there is in an area. Constructive interference happens where the lines—which represent the peaks—cross one another. In other words, when two waves are in phase, constructive interference happens. Destructive interference results when two waves are completely out of phase (a peak is situated in the middle of two waves).
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borgmann provides the example of running as a focal practice and distinguishes it from running on a treadmill in what significant way?
Borgmann provides the example of running as a focal practice and distinguishes it from running on a treadmill in that running (outside) engages the mind and body, while running on a treadmill only engages the body.
Focal practice is human activity that demands patience, skill, and attentiveness. They make life feels meaningful not because of what they produce, but because of what they are. These activities are not accomplished effortlessly. They require focus, engagement, and commitment to achieve their goal.
Some examples of focal practice activities are meditation, gardening, hiking, preparing a meal, tending a fire, and learning a musical instrument.
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What is the density of an object that has a mass of 30 kg and a volume of 0.5 m³?
The density of the object will be 60 kg/m³.
Density of any object is a derived quantity as it is obtained from mass and volume. But, it is not a derived unit. So, it is not a derived unit of measure.
Density of a substance is a physical intensive property. It can not be considered as an chemical property. We can measure the density of a substance without changing of its chemical composition or identities.
Density of a substance gives the idea whether the substance will sink or float. If the density of a substance is more as compared to the liquid, then it will sink. Otherwise it will float.
Density of an object is given by mass/volume.
Here,
mass = 30 kg
Volume = 0.5 m³
Density = 30/0.5 = 60 kg/m³
Therefore the density of an object having mass of 30 kg and volume of 0.5 m³ is given as 60 kg/m³.
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the work required to carry a particle with a charge of 6.0 c from a 5.0-v equipotential surface to a 6.0-v equipotential surface and back again to the 5.0-v surface is:
The work required to carry a particle with a charge of 6.0 c from a 5.0-v equipotential surface to a 6.0-v equipotential surface and back again to the 5.0-v surface is zero.
What are the properties of equipotential surface?
The electric field present around the surface is perpendicular to an equipotential surface.
Two equipotential surface can never met or intersect.
The direction is always from high potential to low potential.
If there is an isolated point charge, then the equipotential surface is a sphere.
Equipotential points are those points in an electric field that has same electric potential. If these points are connected by any line or curve, it is said to be equipotential line and the surface on which it lies is the equipotential surface.
The work done between two points in an equipotential surface is always zero. It is calculated in the following manner:
If any charge moves from point Va to Vb in an equipotential surface, then work done in moving charge
W= q0 (Va- Vb)
As (Va- Vb) = 0 so the total work is equal to zero.
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a plano-convex lens is formed of one plane surface and one convex surface. the convex surface has radius |75cm|. the lens is formed of a material with index of refraction 1.6. what is the focal length of the lens?
The focal length of the lens is 100 cm.
What is focal length?Focal length ( f ) is the distance from the lens or mirror to the focal point ( F ). This is the distance from the lens or mirror that parallel rays meet. Focal length of concave lens, convex lens and concave mirror.The focal length of a lens is the distance between the lens and the image sensor when the subject is in focus, usually expressed in millimeters.For zoom lenses, both minimum and maximum focal lengths are specified (e.g. 18-55 mm). For a thin lens in air, the focal length is the distance from the center of the lens to the prime focus (or focal point) of the lens.For a converging lens (such as a convex lens), the focal length is positive and is the distance at which a parallel beam of light is focused to a single point.To learn more about focal length from the given link:
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the process of the blood flow as it enters the heart until it leaves the heart 150 words
In a classic experiment, a ball (ball 1) is dropped from a specific height. At the same time, an identical ball (ball 2) is launched horizontally from the same height. Which ball hits the ground first?.
Answer:
Explanation:
The answer to the question related to the time for two balls to reach the ground is option C, the two balls will reach the ground at the same time because the horizontal and vertical planes of motion are independent of each other, and they are also released from the same height.
When a ball is dropped, knowing the height we could find the time with the following equation:
(1)
Where:
: is the final height
: is the initial height
: is the initial speed of the ball in the vertical direction = 0 (it is dropped)
g: is the acceleration due to gravity
When the ball is launched horizontally from the same height, we could find the time with equation (1) since the acceleration in the horizontal direction is zero and the initial velocity in the vertical direction is also zero.
The horizontal motion is related to the equation:
(2)
We can notice in both cases that the ball is accelerated only by gravity.
Let's evaluate each statement
A) This statement is incorrect because the path is the same for both cases. The ball is dropped and launched from the same height.
B) This statement is also incorrect. The velocity of the dropped ball is the same as the velocity of the launched ball because the ball is accelerated only by gravity.
C) This statement is correct. We can see that we would get the same time in equation (1) since , , and is the same for the dropped ball and the launched ball.
D) This statement is incorrect. The nature of motion is related to a freefall motion in both cases.
Therefore, the answer is option C.
particle a and particle b, each of mass m, move along the x-axis exerting a force on each other. the potential energy of the system of two particles associated with the force is given by the equation u
The speed and direction of motion of particle B is 2v₀/3 m/s towards left.
Potential energy is stored electricity that relies upon the relative function of various elements of a device. Spring has more capacity energy when it's miles compressed or stretched. A metallic ball has greater potential energy raised above the ground than it has after falling to Earth.
Potential energy is the electricity held by using an object due to its function relative to other objects, stresses within itself, its electric-powered charge, or different factors.
K.E₁ + P.E₁ = K.E₂ + P.E₂
1/2Mv² + G/r² = 1/2Mv² + G/r²
1/2Mv² = 1/2mv²
v² = v²
Va = Vb
V = 2v₀/3 m/s towards left.
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Disclaimer:- your question is incomplete, please see below for the complete question.
Particle A and particle B, each of mass M, move along the x-axis exerting a force on each other. The potential energy of the system of two particles associated with the force is given by the equation U=G/r 2, where r is the distance between the two particles and G is a positive constant. The speed and direction of motion of particle B is?
a glider of mass 4.0 kg is placed on a horizontal air track and connected by a light, inextensible string over a frictionless pulley to a hanging 1.0 kg mass, both starting from rest. how long does it take the 1.0 kg mass to fall 1.0 m? (take g
It will take the 1.0 kg mass to fall 1.0 m is about 3.83seconds.
What does physics define as a force?The push or pull on a massed object alters its velocity, which is the definition of force. An agent with the ability to change a body's resting or moving state is known as an external force. It has a magnitude and a direction.
Finding the force the rope in this situation applied to the 3 kg weight should be our first step.
Weight of 4kg mass = 4×9.8 = 39.2
Weight of 1kg mass = 1×9.8 = 9.8
The force acting upward on the 4kg mass will equal the weight of the 1kg mass. Thus the resultant force acting on the 4kg mass is:
Total force = 39.2 - 9.8 = 29.4 N (upwards)
Now find the acceleration:
F = m×a
29.4= 1×a
a = 29.4m/s²
We now apply the motion equation shown below to determine how long it takes to move one meter:
s = u × t + 1/2(a × t²)
1 = 0 × t +1/2(29.4 × t²)
t = 3.83seconds.
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a pressure sensor was used to measure the unsteady pressure in a cylinder. the sensor output was acquired for 8 seconds at a rate of 269 hz and spectral analysis was performed using fft. is zero padding or truncation needed? type your answer as a number where: 1
In the analysis of measuring the unsteady pressure in the cylinder using the FTT method, a zero-padding required to 2¹²= 4096 or a truncation required to 2¹¹ = 2408 points.
Answer 1
The "Fast Fourier Transform" (FFT) is an important measurement method in the science of audio and acoustic measurements. It converts the signal into individual spectral components and thus provides frequency information about the signal. FFT is used for fault analysis, quality control, and machine or system condition monitoring.
Find the total data points:
N = Frequency x time
N = (259) (8)
N = 2152
The total number of data points is 2152
It is required to use the powers of 2 data points in the FTT algorithm. The nearest powers of 2 values for data points are:
2¹¹= 2408
2¹² = 4096
Therefore, there is a zero-padding required to 2¹²= 4096 or a truncation required to 2¹¹ = 2408 points.
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A 1.5 kg mass is pulled at a constant speed with a force of 6N. What is the constant of friction between the surface and the mass
The constant of friction between the surface and the mass of 1.5 kg being pulled with a force of 6 N is 0.408.
What is friction?Friction is a force that oppose the motion between two bodies in contact.
To calculate the constant of friction between the surface and the mass, we use the formula below.
Formula:
μ = F/mg.......... Equation 1Where:
μ = Contant of frictionF = Forcem = Massg = Acceleration due to gravity.From the question,
Given:
F = 6 Nm = 1.5 kgg = 9.8 m/s²Substitute these values into equation 1
μ = (6)/(1.5×9.8)μ = 6/14.7μ = 0.408.Hence, the constant of friction between the surface and the mass is 0.408.
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A clerk at a hardware store performed the activities in the list.
Activities
1. Pushed a 300 N box for 5 m across a floor using 110 N of force
2. Lifted a 490 N box of tools from the floor to a shelf 1.5 m high
3. Held a 50 N clay pot for 4 minutes for a customer while the customer did more
shopping
Which statement best describes the amount of work performed for the three activities?
O Activity 1 was the only activity that required work.
O Activity 2 required the most work.
O Activity 1 required the same amount of work as Activity 3.
Activity 3 required more work than Activity 1, but Activity 3 did not require more work than Activity 2.
Activity 1 and Activity 3 both needed extra work than Activity 2, while Activity 3 did not.
What is a job?When an object is displaced over a distance by such an external force, at least a portion of that force must be supplied in the directions of a displacement. This is known as work in physics. The quantity of force required to move a thing a specific distance is referred to as the work done.
Which three forms of job are there?Three categories can be used to classify the type of labor performed. Positive work, negative work, and zero work are the three types. The angle among force and displacement determines the kind of work that is done. Positive work occurs when a force is applied and an object is moved in that direction.
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p8.26 a coastal power plant takes in cooling water through a vertical perforated manifold, as in fig. p8.26. the total volume flow intake is 110 m/s. currents of 25 cm/s flow past the manifold, as shown. estimate (a) how far downstream and (b) how far normal to the paper the effects of the intake are felt in the ambient 8-m-deep waters.
Here, the sink strength is related to the volume flow to the depth into the flat surface.
m = 271 b
where,
Q→ Total volume flow rate
b→ Ambient Depth of water
Given, Q value as 110m²/s & bas 8m. Substitute, 110 m²/sec for a 8 m for b
Now,
m = 110 m = 2.1895 m²/s
a) The distance of the downward stream,
a = m/u∝
Here,
The velocity of water currents Substitute 0.25 m/s for U∝,
2.1895 m²/s for m
= 2.1895/0.25
a = 8.758 m
∴ The distance of the downward stream a = 8.758 m.
b) The far normal to the paper the effect of intake left on each side.
L = Па
We have, a value of 8-758
So, substitute a = 8.758 frew above
L = π X 8.758 L = 27.5m
The for normal to the paper the effect of intake left on each side,
L =27.5m.
Towards or near the mouth of a stream swimming downstream. is two miles downstream. At the end of the normal industrial process or at a post-manufacturing stage. Those that migrate downstream migrate from points further upstream towards the estuary.
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If a steady magnetic field exerts a force on a moving charge, that force is directed.
The force exerted by a magnetic field on a moving charge is called the Lorentz force. It is directed perpendicular to both the velocity of the charge and the magnetic field.
The magnitude of the force is given by the equation:
F = qvB
Where:
F is the magnitude of the force (N)
q is the charge of the particle (C)
v is the velocity of the particle (m/s)
B is the strength of the magnetic field (T)
The force acts to deflect the charge from its path. The amount of deflection depends on the strength of the magnetic field and the velocity of the charge. If the magnetic field is strong, the charge will be deflected more. If the velocity is high, the charge will be deflected more.
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