The word done will be 120 joules if we lift an object with a force of 20 N off the ground.
How is the work done on an object determined?Work is the application of force to a task. It is directly correlated with both the amount of force applied to the object and its motion. The equation below can be used to calculate work: Work is equal to force times distance. The Newton meter is the SI unit of work (N m).
What is the work of normal force?W = Fd is the formula for the amount of work W that a constant force does on an object. It is determined by multiplying the force's intensity by the distance the object moves in the force's direction.
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In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80 m/s^2 . Ignore air resistance. A flea jumps straight up to a maximum height of 0.380 m. What is its initial velocity v0 as it leaves the ground?
How long is the flea in the air from the time it jumps to the time it hits the ground?
The initial velocity v0 as it leaves the ground is -1.919 m/s. The flea in the air from the time it jumps to the time it hits the ground needs -1.
What is initial velocity?
Initial velocity is the velocity of an object at the starting point of its motion. It is the velocity of an object when it is first set in motion. It is usually denoted by the symbol v0.
The initial velocity of the flea, v0, can be calculated using the kinematic equation: v²=v₀²+2×a×d, where v is the final velocity, v0 is the initial velocity, a is the acceleration, and d is the displacement.
How to solve this question?
Therefore, plugging in the given values, we get:
0²=v₀²+2×9.80×0.380
=> v₀²= -3.724
=> v₀ = -1.919 m/s
The time the flea is in the air can be calculated using the kinematic equation: d=v₀×t + 1/2×a×t², where d is the displacement, v0 is the initial velocity, a is the acceleration, and t is the time.
Therefore, plugging in the given values, we get:
0.380= -1.919×t + 1/2×9.80×t²
=> t² + 2.383t - 0.76 = 0
=> t = 0.541 s or t= -1.
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What is Newton's first law Mcq?.
Newton's first law states that a body, whether at rest or in uniform motion, remains in a straight line unless the action of an external force forces it to change state.
According to the first law of newton's law of motion, the motion of any body will not change unless a force acts on it. The second law states that the force on an object is equal to its mass times its acceleration. The third law of newton's law of motion states that when two objects interact with each other, forces of equal magnitude and opposite directions are applied to each other. An example of newton's first law, a book on a table will stay on the table unless you use force to lift it. On a frictionless surface, a moving car will keep moving until applied.
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Is negative latency possible?.
Negative latency is defined as 40–60 ms and above.
Stadia can set up a game with a buffer of anticipated delay between the server and player using the concept of negative latency, and then employ various techniques to undermine it. It can either forecast a player's button pushes or run the game at an extremely rapid framerate to react to player inputs sooner.
Negative latency hence does not necessarily indicate this literally. It simply implies that they utilise some algorithm to increase frame rate when it detects a shaky connection at the user's end in order to prevent stuttering in FPS due to lag/bad connection. A ping time of less than 50 ms is excellent and desired by professional gamers.
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4. Which of the three approaches to sociological investigation best fit the study: scientific
sociology, interpretive sociology, or critical sociology? Why? (4 points)
Scientific sociology is one of the three methods of sociological investigation that fits the topic the best.
The definition of scientific sociologyIt is possible to define sociology as the scientific study of society, which includes a complete analysis of both internal and external elements that can have an impact on social structures and interaction patterns.
It should be noted that while the sociology field is very broad and full of opportunities that are required to complete the study that is being discussed in the work, this study focuses on social interaction and culture, which help to determine the things that can be used to learn more about the society.
In conclusion, of the three methods of sociological inquiry, scientific sociology is the most effective for the study of society.
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Which renewable source of energy faces the threat of gradually becoming scarce in various regions of earth?.
Solar energy the renewable source of energy faces the threat of gradually becoming scarce in various regions of earth.
What is Solar energy?Solar energy is energy that is produced from the sun's rays. It is a renewable energy source that is accessible in many areas and can be used to power a variety of applications. Solar energy can be used to heat homes and businesses, generate electricity, and heat water. Solar energy is one of the most abundant and cost-effective sources of renewable energy available. Solar energy does not produce emissions and does not require fuel to produce electricity, making it an environmentally friendly energy source. Solar energy can be used for a variety of applications, including powering homes and businesses, heating water, and producing electricity.
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red light has a wavelength of 6.49 x 102 nm. the energy of a photon of red light is
The energy of red light is 3.00 x [tex]10^{-26}[/tex] joules.
All waves in the electromagnetic spectrum (including light) are made up of packets of energy called photons. Wavelength is the distance between identical points (adjacent peaks) in adjacent cycles of a waveform signal propagating in space or along a line. For wireless systems, this length is usually specified in meters (m), centimeters (cm), or millimeters (mm). These particles have no mass, but do possess some particle- and wave-like properties such as momentum, wavelength, frequency, and energy. In particular, the energy of a single photon can be related to its wavelength λ by the photon energy equation.
E = [tex]\frac{hc}{\lambda}[/tex]
For red light with a wavelength of 6.49×[tex]10^2[/tex]nm
E=[tex]\frac{hc}{6.49\times 10^2}[/tex]
3.00 x [tex]10^{-26}[/tex] joules.
The energy of red light is 3.00 x [tex]10^{-26}[/tex] joules.
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A ball is dropped and bounces off the floor. Its speed is the same immediately before and immediately after the collision. Question how does the height to which the ball bounces compare to the height from which it was dropped?.
The height is same which height of the ball bounces compare to the height from which it was dropped.
An exact definition of a collision.In physics, collision, which is also known as impact, is the sudden, violent coming together in close proximity of two bodies, such as two pool cues, a golf club and a ball, a hammer and a nail, two railroad cars when coupled, or a falling object and a floor.
Collisions can occur in two ways: kinetic energy is conserved in inelastic collisions. Momentum is conserved in elastic collisions, as is kinetic energy.
A collision occurs when two particles, groups of particles, or solid objects move in the same direction and get close enough to one another to interact and have an impact on one another.
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Does mass depend on weight and gravity?.
Weight and mass are two different physical quantities, but they are related to gravity.
Mass is a scalar quantity that measures the amount of matter in an object, and it is independent of its location or motion. It is the same whether an object is on Earth or on the moon, for example.
Weight, on the other hand, is the force exerted on an object due to gravity. It is defined as the force exerted on an object due to the gravitational attraction of the Earth. Therefore, weight depends on gravity, and gravity depends on mass. The weight of an object is the product of its mass and the acceleration due to gravity.
So, mass is independent of weight and gravity, while weight depends on both mass and gravity. The mass of an object doesn't change due to gravity, but it weight does depend on gravity and changes when we move to a different planet or moon, for example.
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Which section of the passage builds tension by speeding up the pace? all was ready. The signal was given. Tall, beautiful, fair, his appearance was greeted with a low hum of admiration and anxiety. Half the audience had not known so grand a youth lived among them. No wonder the princess loved him!.
The lover of the princess entered the arena as a door beneath the royal party opened. His looks were tall, lovely, and fair.
How does the author build suspense in the lady or the tiger?''The Lady, or the Tiger'' creates suspense by keeping the readers guessing whether the princess guided the man (her lover) towards the tigers (sure death) or towards the lady (a woman she hates). In the final paragraphs of the story, the author goes into the decision-making process of the princess.She had known she would be asked. And she had decided what she would answer. And she had moved her hand to the right.When the people gathered together on one of the great trial days, they never knew whether they were to witness a bloody slaughter or a hilarious wedding. Read the passage from "The Lady, or the Tiger."To learn more about princess refer to:
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Is gravity 9. 8 meters per second everywhere?.
What is potential and kinetic energy Grade 7?.
Kinetic energy refers to the form of energy that is possessed by an object due to its motion. While potential energy refers to the form of energy that is possessed by an object due to its state or position.
Potential energy is the stored energy in any object by virtue of its position or arrangement of parts. However, it is not affected by the environment outside of the object, such as height or air. On the other hand, kinetic energy is the energy of an object in motion, meaning that kinetic energy is the energy the object contains because of its motion.
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What i a team port activity that can help the tudent and teacher develop locomotor kill?
One of team sports activity that can help with the student and teacher develop locomotor skill is Simon Says.
Children who have developed their locomotor skills are better able to navigate the world around them, which in turn helps them become more self-assured and gives them a greater appreciation for their independence.
One of a game that can help to develop locomotor skills is Simon Says. This is a classic party game with a twist: instead of just standing around, the caller (Simon) must call out a different kind of locomotion for each player to perform. The person who moves becomes the "caller" if the caller doesn't say "Simon Says" before calling the movement.
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a ___ is a device that converts electrical energy into a linear force.
A device known as a solenoid transforms electric power into a straight, mechanical force.
What does force mean?In science, the concept of "force" is well defined. It is completely permissible to speak of this magnitude of power as a shove or a pull.. The notion of a force makes no distinction among living creatures and inanimate objects.
Real forces: what are they?A true force is an energy source, specifically one that produces kinetic energy. That might be a charge pulling or pulling away other bodies, a muscle in your body enlarging and moving a ball, or both.
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What is the % yield if 4 moles of hydrogen is reacted with 3 moles of oxygen and produces 3 moles of water? 2 h2 + o2 2 h2o.
The percent yield of this reaction is 100%, since 4 moles of hydrogen reacts with 3 moles of oxygen to produce 3 moles of water.
What is moles?Moles in physics refers to the amount of a substance in a given sample. It is expressed as the number of particles, such as atoms, molecules, or ions, in one mole (mol) of a substance. One mole of a substance is equal to 6.022×10^23 particles and is referred to as Avogadro’s number. The mole is the SI (International System of Units) unit for the amount of substance.
The percent yield of this reaction is 100%, since 4 moles of hydrogen reacts with 3 moles of oxygen to produce 3 moles of water. This means that all of the reactants are converted into products, and no reactants are left over.
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A ping-pong ball of mass 3.0 x 104 kg is hanging from a light thread 1.0 m long, between two vertical parallel plates 10 cm apart, as shown. When the potential difference across the plates is 420 V, the ball comes to equilibrium 1.0 cm to one side of its original position.
(a) What is the electric field intensity between the plates?
(b) What is the tension in the thread?
(c) What is the magnitude of the electric force deflecting the ball?
(d) What is the charge on the ball?
a) To find the electric field intensity between the plates, we can use the formula:
Electric field intensity = potential difference / distance between plates
In this case, the potential difference is 420 V and the distance between the plates is 0.1 m (10 cm converted to meters).
Electric field intensity = 420V / 0.1m = 4200 N/C
b) To find the tension in the thread, we can use the formula:
Tension = weight of the ball + force of the electric field
The weight of the ball can be found using the formula:
Weight = mass x acceleration due to gravity
In this case, the mass of the ball is 3.0 x 10^4 kg and the acceleration due to gravity is 9.8 m/s^2.
Weight = 3.0 x 10^4 kg x 9.8 m/s^2 = 2.94 x 10^5 N
The force of the electric field can be found using the formula:
Force = electric field intensity x charge
The charge on the ball is not given, so we cannot find the force.
c) The magnitude of the electric force deflecting the ball can be found using the formula:
Force = Electric field intensity x Charge
As the Charge on the ball is not given it's impossible to calculate this value
d) The Charge on the ball is not provided in the problem statement and it's impossible to calculate it without additional information
It's worth noting that this scenario is a thought experiment, and that the presence of a thread would alter the scenario, as well as the fact that the charge is not provided.
What is rotation and revolution of the Earth for Class 3?.
The term "rotation" describes how an object spins around its own axis. The term "revolution" describes how an item moves in its orbit around another object.
For instance, the 24-hour day is created as the Earth rotates on its own axis. The 365-day year is made possible by the Sun's rotation of the Earth. The earth turns on its axis, which is referred to as rotation. Revolution is the name for the earth's fixed orbital motion around the sun.
An imaginary line called the earth's axis forms a 6612° angle with the plane of its orbit. Revolutionary Rotation The rotation of the Earth is the movement of its axis. The rotation of the Earth around the Sun is known as revolution.
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What is Newton's 1st law of motion apply it in an example?.
Newton's first law states that an object which is at rest stays at rest and object in motion continues its state of motion till an external force acts on it. Example is one's movement of their body to one side in the car, when a ca makes a sharp turn is due to inertia.
This law is also called as a law of inertia.
A ball rolling down the hill will continue in its motion until friction or another force stops it. Shaking the bottle of ketchup, while bringing the bottle down and suddenly stopping it so that inertia causes the ketchup to come out of the bottle are some other examples of Newton's first law.
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which color of visible light would have the least energy? which would have the most energy? how do you know?
The color of visible light that would have the least energy is red. On the other hand, the color of visible light that would have the most energy is violet.
This is because red light has the longest wavelength and the lowest frequency out of all the colors in the visible spectrum. Violet light has the shortest wavelength and the highest frequency out of all the colors in the visible spectrum.
This relationship between wavelength, frequency, and energy can be explained by the relationship between electromagnetic waves and energy. All electromagnetic waves, including visible light, have a certain amount of energy that is proportional to their frequency. The higher the frequency, the more energy the wave has.
This relationship can also be seen in the electromagnetic spectrum, where higher energy waves (such as X-rays and gamma rays) have shorter wavelengths and higher frequencies, while lower energy waves (such as radio waves) have longer wavelengths and lower frequencies.
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The figure on the right shows a 15-cm-long metal rod pulled along two frictionless, conducting rails at a constant speed of 3. 5 m/s. The rails have negligible resistance, but the rod has a resistance of 0. 65 ohms. What is the current induced in the rod?
The current induced in the rod is equal to the voltage induced in the rod divided by the resistance of the rod.
The voltage induced in the rod is equal to the magnetic flux times the velocity of the rod, which is equal to BvL, where B is the external magnetic field, v is the velocity of the rod, and L is the length of the rod.
Therefore, the current induced in the rod is equal to BvL/R, where R is the resistance of the rod. In this case, the current induced in the rod is equal to BvL/0.65, or B3.50.15/0.65.
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how are s waves and p waves used to determine how far away epicenters are?
S waves and P waves are used to determine the distance to an epicenter by measuring the time difference between the arrival of the two types of waves.
What is epicenter?An epicenter is the point on the Earth’s surface that is directly above the source of an earthquake. It is the point on the surface that is the most affected by the seismic waves caused by the earthquake. Epicenters are located by seismographs, which measure the intensity and direction of seismic waves as they travel outward from the source. Epicenters are typically located at the center of an area of intense seismic activity, known as the focus, which is the point below the surface of the Earth where the earthquake originated. Epicenters are used to measure the magnitude and intensity of earthquakes and to map the locations of active fault lines and seismic events.
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An athlete whirl a 6. 90-kg hammer tied to the end of a 1. 0-m chain in a horizontal circle. The hammer move at the rate of 0. 9 rev/. (a) What i the centripetal acceleration of the hammer?
The centripetal acceleration of the hammer is 32 m/s².
What is centripetal acceleration?a body moving through a circle experiences centripetal acceleration. Due to the fact that velocity is a vector quantity (i.e., it has both a magnitude, the speed, and a direction), when a body travels in a circular path, its direction is constantly changing, which causes a change in velocity, which results in an acceleration.
Toward the circle's centre, the acceleration is pointed radially. The centripetal acceleration, denoted by the symbol ac, has a magnitude equal to the square of the body's speed along the curve divided by the distance r from the circle's centre to the moving body, or ac = v2/r.
The length of the chain is: r = 1.0m
The angular speed of the hammer is: ω = 0.9 rev/s
We have given the centripetal force as
[tex]$a_c = \frac{c^2}{r}[/tex]
[tex]$ =\frac{( rw)^2}{r}[/tex]
= rw²
= (1.0)(0.9)²
= (1.0)(0.9(2π rad/1rev))²
= (1.0)(5.654867 rad/s)²
= 31.977521
≈ 32 m/s²
Thus, The centripetal acceleration of the hammer is 32 m/s².
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Does mass depend on frequency?.
Mass does not depend on frequency mass and frequency are two different physical quantities that do not have any direct relationship.
Mass is a scalar quantity that measures the amount of matter in an object. It is a property of the object itself and does not depend on its location or motion.
On the other hand, frequency is a measure of the number of oscillations or cycles per unit of time in a wave or oscillation. It is a property of the motion of the object and can vary depending on the observer's frame of reference.
There is no direct relationship between mass and frequency, and they do not affect each other. They are independent physical quantities that are used to describe different aspects of matter and motion. For example, the mass of an object determines its inertia and gravitational attraction, while the frequency of a wave determines its pitch and color.
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What is Newton's dimension formula?.
Newton is the unit of force and its dimension formula is [MLT⁻²].
The acceleration of an object depends upon two factors one is force on the object and the other is mass of the object.
Acceleration = Force/mass
Newton's second law of motion defines the definition of force. Which is time rate of change of momentum of an object is equal to the force exerted by the object. The SI unit of force is Newton, which is equal to kg-m/s². Mathematically
Force(F) = (final momentum - initial momentum)/time
F = (m₂v₂ - m₁v₁)/Δt
F = (ΔmΔv)/Δt
Dimension would be [MLT⁻¹] × [T⁻¹] = [MLT⁻²]
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How do you solve kinetic energy questions?.
The relationship between kinetic energy and an object's mass and squared velocity is given by K.E. = 1/2*m*v^2. If the mass is measured in kilograms and the speed is measured in meters per second,
The kinetic energy is measured in kilogram-meters squared per second squared. A sort of energy that an object has because it is in motion is called kinetic energy. An object has potential energy if it is in a certain posture or state.
K.E. = 1/2*m*v^2.
The power underlying an object's motion is known as kinetic energy. Both an object's mass and velocity affect its kinetic energy, with the latter factor being significantly more important. Consider a mass M-weighted object traveling at velocity (v).
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In 1-2 sentences, explain why TWO objects with the SAME mass, when dropped from the SAME height, may not reach the ground at the SAME time. (2 points)
Sorry, but thank you to anyone who may answer
Two objects with the same mass may not reach the ground at the same time if they have different sizes, shapes, or densities, as these factors can affect their air resistance and terminal velocity, causing them to fall at different speeds.
What is Gravity?The force that pulls items toward the center of a planet or other entity is called gravity. All of the planets are kept in orbit around the sun by gravity.
Hence, another factor would be the gravitational pull on them which could affect the time they would reach the ground, in addition to their densities and sizes and shapes.
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Does a 5G phone still work on 4G?.
On a 4G network, a 5G phone will surely work. because the cellphone network has just been upgraded. The term "5G" refers to the telecommunications industry's fifth-generation technology standard.
The 5G mobile phone also supports 4G, 3G, and 2G as well as other network technologies. The experience is not as cool as 5G, despite the fact that 5G may be used routinely in the existing 4G network environment. The first commercially available 5G mobile phone that supports 5G+4G dual-card dual-standby at the same time is available for broadband cellular networks, which cellular phone providers began rolling out globally in 2019. These networks are expected to replace the 4G networks that connect the majority of modern cellphones.
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What is the magnitude of 1?.
The magnitude of a number like 1, 2, 3, and so forth is the number itself.
Vectors with a magnitude of exactly one unit are known as unit vectors. For a variety of reasons, they are really helpful. Particularly, any other vector can be formed by combining the unit vectors [0,1] and [1,0]. A magnitude is a unit used to describe a mathematical entity's size.
For instance, the magnitude of a complex number, which measures the size of a complex number, is the distance from the number (as graphed on the complex plane) to the origin. Typically, the magnitude is a positive real number. It is simpler to define any vector as a scalar multiple of the unit vectors because 1 is the multiplicative identity (i.e.).
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How do you solve a force problem?.
a rope 5m long is fastened to two hooks 4.0m apart on a horizontal celling. to the rope is attached a 10kg mass so that the segments of the rope are 3.0m and 2.0m. compute the tension in each segment.
A traditional ceiling construction type is common in homes. These ceilings have a standard drywall finish and are made of less expensive materials, necessitating simple installation.
Determine the tension in each segment.T1sin = T2sin in equilibrium, and T1cos + T2cos = mg.
Geometry yields sin = 11/16, sin = 7/8, and sin = 7/8, respectively.
T1 = T214/11 and T2 = 100 (14*0.73/11 + 0.48)
T2 = 71 N and T1 = 90 N, respectively.
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To make a perfect pie dough, you must mix the ingredients until they are
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assiduous
cohesive
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The best pie crust is a perfect balance between fat, flour, and liquid. is
To make a perfect pie dough .
Why is it called pie?"Pie" was the word for a magpie before it was a word for a pastry, from the Latin word for the bird, Pica (whence the name of the disorder that makes you eat weird things). Pica morphed into "pie" in Old French, following the proud French tradition of actually pronouncing as few consonants as possible.
What is in pie?pie, dish made by lining a shallow container with pastry and filling the container with a sweet or savoury mixture. A top crust may be added; the pie is baked until the crust is crisp and the filling is cooked through.
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The ideal proportion of oil, flour, and liquid goes into making the greatest pie crust. is to create the ideal pie dough.
How come it's called pie?Before it became a term for a baked food, "pie" was the Slang phrase for bird, Pix (whence the name of the disorder that makes you eat weird things). Following their noble French custom of genuinely speaking as few letters as possible, pica evolved into "pie" during Old French.
How is pie made?Pie is a dish that is created by lining the shallow dish with dough and filling it with either a sweet or spicy combination. Its pie is heated until the filling is heated all the way through and the top crust is crunchy.
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