A branch circuit is the conductors between the final overcurrent device and the outlets, providing power to lights and outlets in a building and are typically rated for 15 or 20 amps.
A branch circuit is defined as the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s). Branch circuits provide power to lights and outlets in a building and are typically rated for 15 or 20 amps. The final overcurrent device, such as a circuit breaker or fuse, is used to protect the branch circuit from overloads and short circuits. The National Electric Code (NEC) provides guidelines for the safe installation of branch circuits, including rules for conductor sizing, overcurrent protection, and grounding. Properly installed and maintained branch circuits are essential for ensuring the safe operation of electrical systems in a building.
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Why potential at infinity is zero?
The electric potential is taken from infinity because the fraction 1/x is zero only when x equals, as the fraction tends towards zero and the denominator tends towards infinity potential.
is proportional to 1/r2 so no matter how far you are from the field there is still some influence from it that decreases exponentially with distance (radius). Zero is assumed to be an infinitely large distance from the center of the Earth, resulting in negative values for Gravitational Potential s proportional to 1/r2, implying that no matter how far you are from the field, there is still some influence from it, which decreases exponentially with distance (radius). The electric potential at the reference location is, by definition, zero units. In most cases, the reference point as the fraction tends towards zero and the denominator tends towards infinity potential.
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find the average velocity over the time interval from 1 to 3 seconds. express your answer in meters per second to the nearest integer.
According to the graph, the average speed of the time interval from 1 to 3 seconds is 20 m/s.
In physics, the interval is a term used to describe distances in space and time. Time interval is the amount of time between two specific points in time. An example would be: "The time interval between three o'clock and four o'clock is one hour."
In the graph, the time interval from 1 to 3 seconds is 2 seconds.
In this case, the change in position is about = 40 m
then the average speed is:
v = change in position/time
v = 40/2
v = 20m/s
So, the average speed is 20 m/s.
This question is accompanied by a graphic.
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You are watching an object that is moving in shm. When the object is displaced 0. 600 m to the right of its equilibrium position, it has a velocity of 2. 20m/s to the right and an acceleration of 8. 40m/s2 to the left.
An object is moving in simple harmonic motion. Its current position is 0.6 m to the right of its equilibrium. The object will move 0.24 m further to the right before it stops momentarily and then starts to move back to the left.
The position function of simple harmonic motion can be modeled by:
x(t) = A sin (ωt)
Where:
A = amplitude
ω = angular frequency
t = time
Amplitude is the farthest displacement before the object move back to the left or right.
Substitute x(t) = 0.6
0.6 = A sin (ωt)
Take the derivative:
v(t) = Aω cos(ωt)
Take the derivative again:
a(t) = v(t)' = -Aω² sin(ωt)
-8.40 = - Aω² sin(ωt)
x(t) / a(t) = A sin(ωt) / ( -Aω² sin(ωt))
0.60 / (-8.40) = -1 / ω²
ω² = 8.4/0.6 = 14
ω = 3.74 rad/s
x(t) / v(t) = A sin(ωt) / Aω cos(ωt)
0.6 / 2.2 = tan(3.74t) /3.74
tan(3.74t) = 1.02
3.74 t = 0.795
t = 0.212 s
x(0.212) = A sin(3.74 x 0.212)
A = 0.84 m
The farthest position from the equilibrium is 0.84 m, hence the object will move 0.84 - 0.6 = 0.24 meters farther before it moves back to the left.
Your question is incomplete, most likely it was:
You are watching an object that is moving in shm. When the object is displaced 0. 600 m to the right of its equilibrium position, it has a velocity of 2. 20m/s to the right and an acceleration of 8. 40m/s2 to the left. How much farther from this point will the object move before it stops momentarily and then starts to move back to the left?
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A car moving at a constant speed of 25 m•s-1, has a mass of 730 kg and collides with another stationary car of mass 1800 kg. If the two cars stick together, what is their final velocity immediately
after the collision? Give your answer in m•s without a unit and to an appropriate number of significant figures.
(Show Work)
Using conservation of linear momentum, the final velocity is 7.2 ms⁻¹.
The conservation of linear momentum states that the momentum of a system of bodies remains constant if the net external force acting on the system is zero. We must keep in mind that the system's momentum, not the momentum of the individual particles, is conserved. According to the principle of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.
P = mv is the equation for linear momentum. Conservation of momentum refers to the fact that the overall amount of momentum remains constant.
As per conservation of linear momentum,
p0 = pf so that
(730)(25) + 1800(0) = (730 + 1800) vf.
18250 = 2530 vf
vf = 18250 / 2530
Final velocity = 7.2 ms⁻¹
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An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). A large, flat screen is located at x=L. There is a target on the screen at y position yh, where yh > 0. In this problem, you will examine two different ways that the charge might hit the target. Ignore gravity in this problem. Now assume that the charge is emitted with velocity v0 in the positive y direction. Between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. What should the magnitude E of the electric field be if the charge is to hit the target on the screen?
ATP and NADPH serve as the chemical fuel for the light independent processes, often referred to as the Calvin cycle.
Adenosine triphosphate, also known as ATP, is a highly energetic molecule that both stores and releases energy. It is created by the process of photophosphorylation during the light-dependent activities of photosynthesis. Another high-energy molecule formed during the light-dependent processes is NADPH, or nicotinamide adenine dinucleotide phosphate. This happens as a result of non-cyclic electron transport.
The light independent processes that transform carbon dioxide into glucose and other sugars are powered by both ATP and NADPH. An enzyme known as Rubisco uses the energy from these molecules to drive the fixation of carbon dioxide, turning it into a carbohydrate.
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What is the relationship between torque and lever length?
The torque would be directly proportional with the distance in the torque-lever length connection.
Torque is defined as an action that causes something to rotate. To spin an object, a torque is necessary, just as a force is desired to propel an object in a straight line. Torque is produced by force, it is also affected by the location of the force and indeed the point that occurs when object rotates.
Force as well as lever arm aren't always parallel. Trigonometry is necessary to compute the length of something like the lever arm when the force as well as lever arm are really not perpendicular.
The applied force originates orthogonal to the rotating object's surface. Whenever this force occurs at an angle with the plane of something like the object, the sine function must be used to calculate the perpendicular force.
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additionally, some scientists speculate that our universe is not the only universe that exists, but the only one we can gather evidence about. this idea is called
Moreover, some scientists speculate that our universe is not the only universe that exists, but the only one from which evidence can be collected. This idea is called the big bang theory.
At the big bang, astronomers explain the beginning of the universe. The idea is the universe started as a single point, expanded to its current size, was stretched, and is still expanding. According to the Big Bang theory, the observable expansion of the universe began with the explosion of a single particle at a specific point in time. Georges Lemaître (1894–1966), was a Belgian cosmologist, Catholic priest, and father of the Big Bang theory.
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a cannon-ball of 5 kg acts as a piston in a cylinder of 0.15 m diameter. as the gun-powder is burned a pressure of 7 mpa is created in the gas behind the ball. what is the acceleration of the ball if the cylinder (cannon) is pointing horizontally?
The acceleration of the cylindrical cannon which is pointing horizontally is 24.37 x 10³ m/s²
The mass of the ball = 5 kg
The diameter of the cylinder = 0.15 m
The pressure at which the gunpowder burned = 700 kpa
The atmospheric pressure inside the cannon = 101 kpa
The acceleration of the cylinder can be found using the formula,
F = ma
where F is the force
m is the mass
a is the acceleration
The force exerted by the cannon can be found using the formula,
F = P₁A - P₀A
F = (P₁ - P₀) A
where P₁ is the pressure on the ball
P₀ is the atmospheric pressure
A is the area
Let us substitute the known values in the above equation, we get
F = (7000 - 101)kpa (3.14 x 0.15² / 4)
= 6899 x 10³ x 0.0176
= 121.85 x 10³ N
Thus, the acceleration of the cannon is
a = F/m
= 121.85 x 10³ / 5
= 24.37 x 10³ m/s²
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A video-disc player that is not playing still uses 6. 0w of power. What is the current into the video-disc player if it is plugged into a standard 130v outlet
A video-disc player that is not playing still uses 6.0 W of power and is plugged into a standard 130 V outlet. So the electric current it has is 0.04 Amps
According to international units, the formula for calculating electric power is P = V x I, where P is electric power (W), V is electric voltage (V), and I is electric current (A). So, to calculate the current on the video disc player is:
I = P/V
In terms of the electric power is 6.0 W and the electric voltage is 130 V, then the electric current is:
I = P/V
I = 6.0W/130V
I = 0.04 Amps
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describe the connections between the processes of photosynthesis and combustion. What is the connection between photosynthesis and combustion?
The link between photosynthesis as well as combustion would be that photosynthesis produces oxygen, which would be utilized in combustion.
Complete oxidation using simple hydrocarbon fuels produces carbon dioxide (C02) from every molecule of carbon as well as water (H20) from either the hydrogen, i.e., given a CnHm hydrocarbon fuel,
Despite the idealised scenario of complete combustion, accounting for all species involved in combustion exhaust entails more than just measuring CO2 as well as H20 levels. Because fuels were burned in air instead of just pure oxygen, nitrogen in the air could participate inside the combustion process and cause nitrogen oxide to be produced.
Furthermore, many fuels contain components besides the carbon, which may be changed during burning. Finally, because combustion cannot always be complete, effluent gases contain unburned together with partially burned materials in additional to CO2 as well as H20.
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A force of 57.1 newtons is applied for 0.977 meters; what work was done on the object?
If a force of 57.1 newtons is applied for 0.977 meters on an object, the work done on it is 55.78 J.
In physics, work is defined as the transfer of energy from one system to another through the application of force over a distance. Mathematically, it is represented as the scalar product of force and displacement.
Work done = Force * Displacement
It is given in the question that
Force applied = 57.1 Newtons
and
Displacement = 0.977 meters
Therefore,
Work done = 57.1 N * 0.977 m
Work done = 55.78 Nm
SI Unit of Work done is Joules
Therefore, Work done = 55.78 J
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How do you calculate torque required to rotate a shaft?
To calculate the shaft torque, multiply the radius by the shear stress and the polar moment of inertia.
The amount that a shaft will twist in the presence of a certain amount of force is captured by a device that measures shaft torque. A shaft will twist less when the torque is increased by 3 degrees, 5 degrees, and so on.
Torque is the spinning counterpart of force. Therefore, in reaction to a net torque, an item will rotate with an angular acceleration. Since every rotational motion has an axis of rotation, a torque must be specified about that axis. An applied force that spins an object about its axis is known as a torque.
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A driver ignores the stop sign and continues driving west at constant speed.
A driver ignores the stop sign and continues driving west at constant speed ,is true.
Which graph depicts an item moving faster?A speed-time graph demonstrates how a moving object's speed varies over time. The acceleration increases as the graph becomes more pronounced. A horizontal line denotes a constant speed of motion for the item. The item is slowing down if the line slopes downhill.An object's total change in position is referred to as displacement, a vector variable that measures "how far out of place an item is."The object's acceleration is shown by the slope of a velocity graph.A driver ignores the stop sign and continues driving west at constant speed ,is true.The complete question is A driver ignores the stop sign and continues driving west at constant speed.t/false
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as a transverse wave travels through a medium, the individual particles of the medium move a) in ellipses b) in circles c) parallel to the direction of wave travel d) perpendicular to the direction of wave travel
As a transverse wave travels through a medium, the individual particles of the medium move a d) perpendicular to the direction of wave travel.
What are transverse waves?
Transverse waves are waves where the disturbance is 90 degrees to the direction the wave is traveling. They can be mechanical waves or electromagnetic.
What are examples of transverse waves?
Examples of transverse waves include moving a string tethered to a stationary object up and down to create oscillations that travel down the string or placing a slinky on the ground and moving it back and forth to create waves that travel down the slinky. Other examples are light waves, S-waves in earthquakes, and beach waves.
When a transverse wave travels through a medium the particles of the medium?
In a transverse wave, particles of the medium vibrate up and down perpendicular to the direction of the wave. In a longitudinal wave, particles of the medium vibrate back and forth parallel to the direction of the wave.
How does a transverse wave move through a medium?
When a transverse wave moves through a medium, the action of the particles of the medium is side-to-side perpendicular to the direction the wave travels. This can be in any direction relative to up and down, so long as it forms a line of movement perpendicular to the traveling direction.
Thus, option D) is the correct answer.
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Does ice have zero kinetic energy?
The current findings demonstrate that the proton kinetic energy in ice is mostly dictated by its zero point value (about 151 meV at T = 5 K), with only a modest temperature rise (around 0.02 meV/K between 5 K and 271 K).
Kinetic energy, often known as the energy of motion, may be seen in the motion of things and subatomic particles. Kinetic energy may be found in all particles and moving objects. Examples of kinetic energy in action include a person walking, a baseball flying through the air, food tumbling off a table, and a charged particle in an electric field. Kinetic energy may be calculated as follows: K.E. is defined as the product of the square of the velocity and the mass of an object, or m/v2. The kinetic energy is given in kilogram-meter squared per second squared if the mass is measured in kilogrammes and the velocity is measured in metres per second.
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Compare two samples at 298 K. Which sample has the higher vapor pressure? Sample A holds 100 mL of a liquid in a 250 mL closed container. Sample B holds 50 mL of the same liquid in a 100 mL closed container. • Sample A • Sample B • They have the same vapor pressure.
Sample B has the higher vapor pressure.
The vapor pressure of a liquid is determined by the number of molecules that escape from the surface of the liquid into the space above it. The vapor pressure of a liquid is directly proportional to the number of molecules in the space above the liquid. The more molecules present, the higher the vapor pressure.
Since sample B has 50 mL of the same liquid in a 100 mL closed container, it has a higher concentration of molecules in the space above the liquid than sample A, which has 100 mL of the same liquid in a 250 mL closed container. Therefore, sample B has a higher vapor pressure.
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Answer: i do not know but i think b
Explanation:
a thin, spherical shell of radius r is made of an insulating material. this spherical shell holds a net charge of q, which is distributed uniformly over the surface of the spherical shell. what is the surface charge density, , of this charged spherical shell?
The surface charge density of the charged spherical shell is
[tex]\displaystyle \sigma = \frac{Q}{4\pi r^2}[/tex]
The surface charge density (σ) is the charge per unit area measured in coulombs per square meter (C⋅m−2) at any point of the surface charge distribution on a two-dimensional surface. A surface charge is a two-dimensional surface with a non-zero charge. These charges are confined to this 2-D surface and the surface charge density, measured in coulombs per square meter (C m-2), is used to describe the charge distribution on the surface. Charge density is a measure of charge per unit area of a surface or per unit volume of an object or field. Charge density can be determined by volume, area, or length.
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Instrument used to determine latitude by measuring the position of the stars is called: ________
A sextant would be an instrument employed to measure latitude through measuring their position of the stars.
A sextant is a tool for determining the distance between two visible objects. A sextant can be used to measure both horizontal as well as vertical angles. It has reflectors that also are placed so that the observer may see both items at the same time. It is primarily used for navigation on marine routes.
Sextant Principle: When a ray of light gets reflected through two mirrors in succession within the same plane, the angle here between the incident and reflected rays is two times that angle between the mirrors.
Sextants are classified as follows:
Sextants are classified into three types:
1. Sextant Nautical
2. Sextant in a box
3. Sextant Sounding
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At what point is a pendulum acceleration at the greatest rate?
In a pendulum, the acceleration is at the greatest rate at the point of greatest displacement from the equilibrium or the point of highest amplitude.
A pendulum is a weight suspended from a fixed point that swings back and forth due to the force of gravity. The most common form of a pendulum is a weight, or bob, hanging from a cord or rod. When the pendulum is given an initial push, it will continue to swing back and forth due to the force of gravity acting on the bob. The motion of a pendulum is known as oscillation.
At the highest point of the swing, the velocity of the pendulum is zero and the acceleration is at its maximum as the pendulum changes direction. At this point, the acceleration is directed towards the center of oscillation and is directed towards the equilibrium position. As the pendulum swings back and forth, the acceleration decreases as the velocity of the pendulum increases and reaches zero again at the highest point of the swing.
It's also worth noting that, the acceleration of a pendulum is not constant, but it is changing as the pendulum swings, and it's greatest at the point of the highest amplitude and it is directed towards the center of oscillation.
Therefore, the acceleration is at the greatest rate at the point of highest amplitude.
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What will happen to the force between the two magnets if they are pulled apart?
Answer:
It decreases
Explanation:
The force decreases because its getting pulled apart
What is the acceleration of a pendulum at its lowest point?
At the lowest position of a simple pendulum, the tangential acceleration is zero. Acceleration is the measure of a change in velocity. Acceleration frequently, but not always, denotes a shift in speed.
In mechanics, acceleration refers to the rate at which an object's velocity with respect to time varies. Acceleration is a vector quantity (in that they have magnitude and direction). The direction of an object's acceleration is determined by the direction of the net force that is applied to it. According to Newton's Second Law, the object's mass, which changes based on the materials it is built of, and the net balance of all external forces acting on it both contribute to an object's acceleration. The mass of an item has an inverse relationship with the magnitude of its acceleration.
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Determine the values of m and n when the following charge of a proton is written in scientific notation: 0. 000000000000000000160 c.
The scientific notation for the proton's charge is 1.60 x 10^-17 c, where m = 1.60 and n = -17, obtained by moving the decimal point 17 places to the left.
In scientific notation, a number is represented as m x 10^n, where m is a decimal number between 1 and 10, and n is an exponent. The exponent indicates how many times the decimal point must be moved in order to obtain the number in its standard form.
In this case, the proton's charge is given as 0.000000000000000000160 c. To convert this number to scientific notation, we need to move the decimal point so that there is only one non-zero digit before it. In this case, we move the decimal point 17 places to the left. This gives us 1.60, which is the value of m. The exponent, n, indicates how many times we moved the decimal point. In this case, we moved it 17 times to the left, so n = -17.
Therefore, the scientific notation for the proton's charge is 1.60 x 10^-17 c.
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there are two 100 gram bullets. one is fired horizontally from a height of 2 meters with a velocity of 1000 ft/s, while the other is simply dropped from a height of 2 meters. neglecting air resistance, which of the two bullets will hit the ground first?
Both bullets will hit the ground at the same time, neglecting air resistance.
The time of flight for an object dropped from a height h is given by:
t = √(2h/g)
Where g is the acceleration due to gravity (9.8 m/s^2). In this case, t = √(2*2/9.8)= 0.816 seconds
The time of flight for an object moving horizontally with velocity v at an initial height h is given by:
t = 2h/v
Where v is the horizontal velocity. If the velocity is given in ft/s, we need to convert it to m/s before using the equation: v = 1000 ft/s * 0.3048 m/s/ft = 304.8 m/s
In this case, t = 2*2/304.8 = 0.816 seconds
As we can see, the time of flight for both bullets is the same and so both bullets will hit the ground at the same time, neglecting air resistance.
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What are the two types of carbohydrates food?
The two types of carbohydrates food are sugars (simple carbohydrates) and starches (complex carbohydrates).
Carbohydrates are one of the macronutrients. Nutrients that the body needs in large quantities can produce energy because they contain calories. The two types of carbohydrates are sugars (simple carbohydrates) and starches (complex carbohydrates).
Sugars (simple carbohydrates) have an uncomplicated structure that is easily digested and absorbed by the body. Sugar can be obtained naturally from various types of food, such as fruits (fructose), milk (lactose), granulated sugar, and rock sugar (sucrose).
Starches (complex carbohydrates) have a longer sugar structure, so they take longer to be digested and absorbed by the body. We can get this carbohydrate source from plants, such as whole grains, vegetables, and nuts. Starchy foods, such as pasta or noodles and bread, also contain starch-type carbohydrates.
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PLEASE HELP ASAP
A stone is thrown horizontally from the top of a 18.4 m tail cliff. The stone lands
at a distance of 22.3 m from the edge of the cliff. What is the initial horizontal
velocity of the stone?
The initial horizontal velocity of the stone is 1.211m.
What is the initial horizontal velocity of the stone?A stone is thrown horizontally from the top of a 18.4 m tail cliff. The stone lands at a distance of 22.3 m from the edge of the cliff.
By measuring the ball's diameter d and dividing it by the time t it takes for it to cross the photogate, one can also calculate the ball's starting horizontal velocity. Therefore, Vo = d/t.
The starting velocity is expressed as u = v - at if time, acceleration, and ultimate velocity are given. (2) We use u2 = v2 - 2as though ultimate velocity, acceleration, and distance are given. (3) The starting velocity is if a certain distance, acceleration, and time are given.
Vo = d/t.
22.3 / 18.4 = 1.211.
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in a lab experiment you need to predict where a steel ball will land when it rolls off a table. the ball rolls off the table that is 0.8 meters high. if the ball travels on the table with a constant velocity and travels 1.2 meters in 3.0 seconds. how far from the base of the table will the steel ball land?
The ball will land 44.1 meters below the table. Distance is measured by multiply speed and time.
To predict where the steel ball will land when it rolls off the table, you would need to calculate the distance the ball travels horizontally (x) as well as the distance the ball travels vertically (y). Since the ball travels on the table with a constant velocity, you can use the kinematic equation:
y = [tex]vi_y*t + (1/2)at^2[/tex]
where y is the final vertical distance, [tex]vi_y[/tex] is the initial vertical velocity (0, since the ball is rolling off the table), t is the time (3 seconds), and a is the acceleration due to gravity (-9.8 m/s²).
y = 03 + (1/2)(-9.8)*3² = -44.1 meters
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calculate the number of minutes you would need to cycle to work for 200 g chips
You would need to cycle 1 hour 50 minute to work for 200 g chips.
What are calories?Energy is measured in calories. Calories in nutrition relate to the energy that humans obtain from the food and liquids they consume as well as the energy they expend when engaging in physical activity.
On every food package, the nutritional information includes a list of calories.
200 grams of potato chips have 1074 calories.
Calorie burn on 30 minute Cycling is 298 calories.
So, to burn 1074 calories, you have to cycle = (1074 ÷ 293) × 30 minute
= 110 minute
= 1 hour 50 minute.
Hence, you would need to cycle 1 hour 50 minute to work for 200 g chips.
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2a. Explain the five steps and how you can use them to solve a word problem.
2b. How much time does it take for a bus that has a velocity of 10 m/s to go a distance of 1,475 m?
The time it takes for a bus that has a velocity of 10m/s to go a distance of 1475m is 147.5s.
How to calculate speed?Speed is the rate of motion or action, specifically the magnitude of the velocity i.e. the rate distance traversed in a given time.
The speed of a moving object can be calculated by dividing the distance moved by the time taken to travel the distance as follows:
Speed = distance ÷ time
According to this question, a bus that has a velocity of 10m/s travels a distance of 1,475m. The time it takes the bus can be calculated as follows:
10 = 1475/t
t = 147.5seconds
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At what time will the interfering waves have an amplitude of zero? 1.0 3.0 4.0 7.0
At 4.0 time will the interfering waves have an amplitude of zero.
How can you determine an interference wave's amplitude?Step 1: Confirm that there is beneficial interference in the waves. Step 2: Calculate A1+A2 A 1 + A 2 to get the amplitude of the resultant wave, where A1 is the amplitude of the first wave and A2 is the amplitude of the second wave.When the crests of two waves cross over, it is called constructive interference. This results in an increase in wave amplitude. When the crests of one wave cross the troughs of another wave, destructive interference takes place and the amplitude of both waves is reduced. At 4.0 time will the interfering waves have an amplitude of zero.To learn more about interfering waves refer to:
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When calculating torque the perpendicular distance or lever arm is defined as?
When calculating the torque, the lever arm is defined as the perpendicular distance from the axis of rotation to the line of action of the force.
The twisting force that propels an object's rotation around an axis is measured by torque. It is computed by dividing the force exerted on an item by the lever arm, or perpendicular distance between the application point and the axis of rotation. The moment arm is another name for this distance. The standard units for measuring torque are (Nm). It is crucial to comprehend torque and how it is calculated in disciplines like engineering and physics.
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