to keep the voltage drop of a 277v circuit to a maximum of 3%, what would be the maximum allowable voltage drop?

The acceleration of the light truck travelling around a flat curve with a radius of 140 m and a speed of 26 m/s is 17.14 m/s².

The acceleration of a light truck travelling around a flat curve with a radius of 140 m and a speed of 26 m/s can be calculated by using the equation: acceleration = (v2/r).

In this equation, ‘v’ is the speed of the truck, and ‘r’ is the radius of the curve.

Therefore, when substituting these values into the equation, we get: acceleration

= (262/140)

= 17.14 m/s².

This means that the acceleration of the light truck travelling around a flat curve with a radius of 140 m and a speed of 26 m/s is 17.14 m/s².

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The new velocity of the 0.18 kg ball, given that it's initial velocity was 0.39 m/s is 0.37 m/s

The following data were obtained from the question:

The new velocity of the first ball (0.18 Kg) can be obtained as follow:

Momentum before = Momentum after

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(0.18 × 0.39) + (0.016 × 0.05) = (0.18 × v₁) + (0.016 × 0.26)

0.0702 + 0.0008 = 0.18v₁ + 0.00416

Collect like terms

0.18v₁ = 0.0702 + 0.0008 - 0.00416

0.18v₁ = 0.06684

Divide both sides by 0.18

v₁ = 0.06684 / 0.18

v₁ = 0.37 m/s

Thus, the new velocity of the 0.18 Kg ball is 0.37 m/s

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Answer: They change the shape of the lens

Explanation: It enables the lens to change its shape to focus on objects at various distances

g a block is pulled at a constant speed along a rough level surface by a rope the magnitude of the normal force could be reduced by greater than zero but less than W.

A force is an effect that can alter an object's motion according to physics. A force can cause an object with mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). Force is denoted by the letter F. (formerly P). The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation. Thrust, which increases an object's velocity; drag, which decreases an object's velocity; and torque, which causes changes in an object's rotational speed, are all concepts connected to force. Each part of an extended body often exerts stresses on the sections that are nearby; the distribution of these forces throughout the body is what is known as the internal mechanical stress.

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You would alter the separation width and track the system's diffraction angle to verify this theory. Therefore, the Gap Width is the variable and the Diffraction Angle would serve as the dependent variable.

Salt will become more soluble as even the temperature rises. UV radiation exposure is associated to the risk of skin cancer. Many brands of light bulbs have the same lifespan. Cats don't care what color their cat chow is.

A great hypothesis statement includes a prediction, is unambiguous and testable. While "testable" denotes verifiability or falsifiability, it also implies that you may conduct the required tests without going against any ethical norms.

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The complete question is-

The goal of this experiment was to answer the question, "How does diffraction occur?" Suppose you formulated this alternate hypothesis:

If the gap width is increased while keeping wavelength constant, then the observed diffraction will decrease because the less the ratio between wavelength and gap width is, the smaller the observed diffraction angle will be.

To test this hypothesis, you would change the and observe the in the system.

Therefore, the independent variable would be the and the dependent variable would be the .

1. is gap width

2. is diffraction angle

3. is gap width

4. is diffraction angle

Explanation:

The magnitude of the electric field is 17.80

We are given that,

e = (-11i^+14j^)n/c

x component = -11

y component = 14

To calculate the magnitude of the electric field we can use formula ,

e = √x² + y²

e = √-11² + 14²

e = √121 + 196

e = √317

e = 17.80

Therefore , the magnitude of the electric field would be 17.80.

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A 1200 kg SUV will take 1875.6 N of net force to accelerate it across 200 meters at 25 m/s from a standstill.

Where:

a = acceleration (m/s²)

v = final velocity (m/s)

u = initial velocity (m/s)

s = distance (m)

v² - u² = 2as

a = v² - u²/2s

a = 25² - 0²/2(200)

a = 625/400

a = 1.563m/s²

Since a = 1.563m/s²

F = 1200 × 1.563

F = 1875.6N

Therefore, a 1200 kg SUV will need to accelerate with a net force of 1875.6 N over a 200 m distance to reach a speed of 25 m/s.

In mechanics, a force is any action that has the potential to change, maintain, or deform a body's motion. The three principles of motion outlined by Isaac Newton in his Principia Mathematica are frequently used to illustrate the concept of force (1687). Newton's first law states that a body at rest or moving uniformly in a straight line will stay in that state until a force is applied to it. According to the second law, a body will accelerate (change in velocity) in the direction of any external force acting on it. The amount of acceleration is directly related to the amount of external force.

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Lisa can now pick up other paper clips with her freshly magnetized clip after exposing an iron paper clip to a very powerful magnet, which aligns the magnetic domains within the clip.

When a small portion of the iron filings comes into contact with the poles, which are the ends of the magnet, all of the filings are drawn to them. An opposite pole and a similar pole make up a magnet's two poles. While similar poles repel, opposite poles attract. The magnetic force between two magnets increases as the distance between them decreases.

There are three different types of magnets, Permanent magnet, Temporary magnet ,Electromagnets.

When ferromagnetic substances like iron and nickel are exposed to a magnetic field, magnets are produced. When heated to a certain temperature, metals acquire permanent magnetic properties.

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(a) The fraction of neutron's kinetic energy transferred to the atomic nucleus is 0.09.

(b) The final kinetic energy of the neutron is 3.82 x 10⁻¹³ J.

The final velocity of the atom is calculated by applying the principle of conservation of linear momentum as follows;

initial momentum of the neutron = final momentum of the atom

m₁u₁  = m₂u₂

where;

The mass of the atomic nucleus = 11.1 m₁

u₂  = m₁u₁ / m₂

u₂  = m₁u₁ / (11.1 m₁)

u₂  = 0.09u₁

The initial kinetic energy of the neutron is calculated as;

K.Ei = ¹/₂m₁u₁²

The final kinetic energy of the atomic nucleus is calculated as;

K.Ef =  ¹/₂m₂u₂²

K.Ef =  ¹/₂(11.1 m₁)(0.09u₁)²

K.Ef = 0.09 (¹/₂m₁u₁²)

K.Ef = 0.09 (K.Ei)

The fraction of neutron's kinetic energy transferred to the atomic nucleus is calculated as;

= 0.09 (K.Ei) / K.Ei

= 0.09

= 9 %

The final kinetic energy of the neutron is calculated as follows;

K.E.f (neutron) = (1 - 0.09) x (4.2 x 10⁻¹³ J)

K.E.f (neutron) = 3.82 x 10⁻¹³ J

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The Fad,x, the x-component of the force exerted by the infinite wire on segment AD of the loop is 2.39 X 10⁻⁸ N. The Fbc,x, the x-component of the force exerted by the infinite wire on segment BC of the loop is 9.56 X 10⁻⁹ N. The Fnet,y, the y-component of the net force exerted by the infinite wire on the loop is zero.

1. The Fad,x, the x-component of the force exerted by the infinite wire on segment AD of the loop =

= Fad,x = u₀i₁i₂H / (2πL)

= Fad, x = [ (4π X 10⁻⁷)(0.672)(0.256) X (0.25) ] /2π X 0.36

= Fad,x= 2.39 X 10⁻⁸ N

2. The Fbc,x, the x-component of the force exerted by the infinite wire on segment BC of the loop =

= Fbc,x = u₀i₁i₂H / (2π) X (L+W)

= Fbc,x = (4π X 10⁻⁷)(0.672)(0.256)((0.25)/2π X (0.36+0.54)

= Fbc,x = 9.56 X 10⁻⁹ N

3. The Fnet,y, the y-component of the net force exerted by the infinite wire on the loop =

= Fnet,y = 0, since force acting on perpendicular wire is zero.

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The mass varies from only about 100M suns to about 0.08M suns or by about a factor of 1000 along the main sequence, whereas the luminosity varies from 10^6 for the most luminous stars to less than 0.001 or factors of more than 10^9 for the least luminous.

Only the radii of main sequence stars are fairly similar to that of the sun, which implies that the radii change by a smaller factor than the luminosity. The validity of the conclusion can be shown by noting that the luminosity of a star is proportional to R^2T^4, but this is beyond what is covered.

A main-sequence star is a star that burns hydrogen just like the Sun. Massive main-sequence stars are hot and in the upper left of the strip. Low-mass stars have low temperatures and are located in the lower right corner. Massive stars rapidly burn up all their hydrogen in just a few million years. luminosity and distance.

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Answer: Fn = 630 N

Explanation:

ΣFy = Fn - mg = ma (The sum of the forces in the y-direction must equal mass * acceleration in the y direction)

Fn = mg + ma

Fn = m(g + a)

Fn = (57 kg)(9.8 m/s^2 + 1.25 m/s^2)

Fn = 630 N

The different component of the momentum of the ball is as bellow,

As per the details share in the above question are s bellow,

The mass of the super ball m is =50gm

The super ball drop from the height of = 1.5 m

Consider the ball's speed be v right before it hits the table.

Decrease of Potential Energy = Increase of Kinetic Energy

=> m x 9.8 x 1.5 = [tex]0.5 m v^{2}[/tex]

=> Therefore velocity = 5.42 m/s (- y direction)

A) Prior to a collision, the momentum component Y = mv

= - 0.05 x 5.42 = - 0.271 kg m/s

Consider the ball's speed be u right before it hits the table.

Increase of PE = Decrease of KE

=> m x 9.8 x 1 = [tex]0.5 m u^{2}[/tex]

=> u = 4.427 m/s (+ y direction)

B) Following the impact, the ball's Y contribution of momentum = mu

= 0.05 x 4.427 = 0.221 kg m/s

C) Now when Impulse imparted,

Consider Jy = change in momentum

= 0.221 - (-0.271) = 0.492 kg m/s

D) The ball time of contact is = 15 ms

Force = change inimpulse / time

= 0.492/0.015 = 32.82 N

E) change in Kinetic energy during collision

= KE after - KE before

[tex]= 0.5 \times 0.05 \times 4.427^{2} - 0.5\times0.05\times5.42^{2}[/tex]

= - 0.24445 J

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Note: The correct correct question would be as bellow,

As shown in the figure (Figure 1) , a superball with mass m equal to 50 grams is dropped from a height of hi=1.5m . It collides with a table, then bounces up to a height of hf=1.0m . The duration of the collision (the time during which the superball is in contact with the table) is tc=15ms . In this problem, take the positive y direction to be upward, and use g=9.8m/s2 for the magnitude of the acceleration due to gravity. Neglect air resistance.

A) Find the y component of the momentum Pbefore,y of the ball immediately before the collision (in kg x m/s)

B) Find the y component of the momentum of the ball immediately after the collision, that is, just as it is leaving the table (in kg x m/s)

C) Find Jy, the component of the impulse imparted to the ball during collision (in kg x m/s)

D) Find the y component of the time-averaged force Favg,y in Newtons, that the table exerts on the ball

E)Find Kafter - Kbefore, the change in the kinetic energy of the ball during the collision, in Joules.

Potential difference is the work done in moving a unit charge to a reference point. The potential difference is 9 volts. Thus option B.

Potential difference is a term that is used to describe the work done in transferring a unit positive charge from infinity to a reference point. While the electric field strength is the number of electric field passing through a unit area in a period.

Tension is an example of contact force which is applicable to extended strings, lines, ropes etc.

Given:

electric field strength = 30 V/m

distance between the two points = 30 cm

                                         = 0.3 m

Potential difference between the points = 0.3 x 30

                                          = 9.0 V

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This mosaicism in Turner's syndrome develops as a result of some cells in an XY embryo rapidly losing a Y chromosome after fertilization.

The zygote will have karyotype 44+XY if the sperm contains a Y chromosome. A gamete with the X chromosome will be produced by a mother. The resulting embryo would be a 44+XY (total 46 chromosomes). This zygote begins to divide its cells, but if the embryo's cells somehow lose the Y chromosome, the karyotype will change to 44+X0 (totaling 45 chromosomes, which is the Turner's syndrome disease).

Thus, certain cells that were originally destined to create an XY embryo with 46 chromosomes now have 45 chromosomes and the Turner's syndrome X0 condition.

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No, the momentum of the block is not conserved.

The block is not isolated—that is, free from outside influences. In actuality, a part of the block's weight force operates in a direction perpendicular to the incline.

Momentum

Momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum.

According to Newton's second law, if a particle is subjected to a constant force for a specific amount of time, the result of the force and time is equal to the change in momentum. On the other hand, a particle's momentum represents the length of time needed for a consistent force to bring it to rest.

Any grouping of particles has a momentum equal to the vector sum of its individual momenta. A change in one particle's momentum is precisely balanced by an equal and opposite change in the momentum of another particle, according to Newton's third law, which states that particles exert equal and opposite forces on one another. The law of conservation of momentum states that when no net external force is acting on a group of particles, their total momentum remains constant.

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The light intensity from  largest to smallest ranking will be  :B > D > A=C > E. where the area is measured on the plane perpendicular to the direction .

In physics, the intensity is the amount of energy that is transmitted per unit area, and the area is measured on a plane perpendicular to the direction that the energy equation will propagate. I = P/ 4(d2), with P denoting power. Let power of 1 bulb equal = P where I = intensity, d = distance at which the intensity must be determined.

case A = I =  P / (1) (1) 1 = P case with 2 = P In the situation B = I = 2P/(0.5)2 = 8P C = I = 4P / (2) (2) ^2 = P case Case (1)2 = 3P: D = I = 3P E = I = 2P /(1.5) (1.5) ^2 = 0.8 P

B > D > A=C > E will be the order of light intensity, from greatest to least.

rank the light intensity, from largest to smallest, at the point p in the figures?

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In the cores of main sequence stars, hydrogen atoms are fused to form helium atoms. The sun is one of the majority of main sequence stars, which make up about 90% of all stars in the universe.

These stars can be as much as 200 times as massive than the sun or only a tenth as massive.

Stars begin their lives as gas and dust clouds. These clouds are brought together by gravity. The falling material acts as the fuel for a tiny protostar. Protostars can be difficult to find and frequently form in tightly packed gas clouds.

Mark Morris of the University of California, Los Angeles (UCLS), stated in a statement that "Nature doesn't generate stars in solitude" (opens in new tab). "It creates them in groups from natal clouds that burst under.

Therefore, In the cores of main sequence stars, hydrogen atoms are fused to form helium atoms. The sun is one of the majority of main sequence stars, which make up about 90% of all stars in the universe.

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Answer: (option b) on the equator only on the March and September equinoxes

Explanation:One of the abecedarian data of life at Earth’s midlatitudes, where utmost of this book’s compendiums live, is that there are significant variations in the heat we admit from the Sun during the course of the time. We therefore divide the time into seasons, each with its different quantum of sun. The difference between seasons gets more pronounced the further north or south from the ambit we travel, and the seasons in the Southern Hemisphere are the contrary of what we find on the northern half of Earth. With these observed data in mind, let us ask what causes the seasons.

numerous people have believed that the seasons were the result of the changing distance between Earth and the Sun. This sounds reasonable at first it should be colder when Earth is further from the Sun. But the data do n’t bear out this thesis. Although Earth’s route around the Sun is an cirque, its distance from the Sun varies by only about 3. That’s not enough to beget significant variations in the Sun’s heating. To make matters worse for people in North America who hold this thesis, Earth is actually closest to the Sun in January, when the Northern Hemisphere is in the middle of downtime.



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The Sun reaches the zenith (directly overhead) at midday on the equator every day. Therefore, option D is correct.

The relationship between the Sun and the equator also affects the seasons. As the Earth orbits the Sun, its axial tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year. When the Sun is directly overhead at the Tropic of Cancer during the June solstice, it marks the start of summer in the Northern Hemisphere and winter in the Southern Hemisphere.

Conversely, when the Sun is directly overhead at the Tropic of Capricorn during the December solstice, it marks the start of summer in the Southern Hemisphere and winter in the Northern Hemisphere.

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The hypothesis is that, a changing electric field gives rise to a magnetic field.

What is electromagnetism?

The electromagnetic force that exists between electrically charged particles is the subject of the branch of physics known as electromagnetism. One of the four fundamental forces is the electromagnetic force.

 What is electric field?

The physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them, is known as an electric field (or E-field).

What is magnetic field?

The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field.

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The fraction of the neutron's kinetic energy transferred to the atomic nucleus is 2.05

If the initial kinetic energy of the neutron is

4.2 × 10−13 J, its final kinetic energy  will be 2.50 joules

kinetic energy of an object is described as the energy that it possesses due to its motion which is also the work needed to accelerate a body of a given mass from rest to its stated velocity.

In elastic head-on collision, the energy of the system and total momentum is conserved.

For the neutron,

m - mass

Vi - initial velocity

Vf - final velocity

For the atom ,

M- mass

Mi - initial velocity

Mf - final velocity

Conserved momentum on the head-on collision

mvi = mvf + MVF

vi - vf = MmVf

Vi- vf = 11.1 vf...... (i)

The kinetic energy is

Vi²- vf² = 11.1 v²f.......(ii)

Combining both equations

Vi + Vf = Vf

Solve equation (I) and (III) for Vi

vi = 5.4vf

Now, the fraction of the neutron's kinetic energy transferred to the atomic nucleus,

1/2 mv²f/ 1/2 mv²i = 11.1/ 5.4

If the initial kinetic energy of the neutron is

4.2 × 10−13 J, its final kinetic energy  will be 2.50 joules

Hence, we can conclude that the fraction of the neutron's kinetic energy transferred to the atomic nucleus is 2.05

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The de Broglie wavelength and speed of an electron accelerated is  0.1896nm.

1/2 m[tex]v^{2}[/tex] = K.E = ev

Charge on electron = 1.6 × [tex]10^{-19}[/tex]coulombs

Mass  of electron = 9.1 × [tex]10^{-31}[/tex]Kg

1/2 × 9.1 × [tex]10^{-31}[/tex] × [tex]v^{2}[/tex] = 1.6 × [tex]10^{-19}[/tex]  × 250

[tex]v^{2}[/tex] = [tex]\sqrt{0.02552}[/tex]

v = 2.125 × [tex]10^{6}[/tex]

λ = h/mv = 0.1896nm.

A subatomic particle having a negative one elementary electric charge is known as an electron (e or ). Due to their lack of known components or substructure, electrons, which are part of the lepton particle family's first generation, are typically considered to be elementary particles. [1] The mass of an electron is roughly equivalent to that of a proton (1/1836). [15] The electron's inherent angular momentum (spin), which is measured in terms of the scaled-down Planck constant,, is one of its quantum mechanical properties. The Pauli exclusion principle states that because electrons are fermions, no two of them may be in the same quantum state. [14] Like all elementary particles, electrons possess characteristics of both waves and particles. They can collide with other particles and undergo light-like diffractive bending. The electron wave characteristics are simpler.

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Yes, the magnitude of the acceleration due to gravity near Earth surface increases more if Earth's mass were doubled.

The magnitude of the acceleration due to gravity on the surface of the Earth is given by the relation,

g = GM/r²

Where,

G is the universal gravitational constant,

M the mass of the earth and,

R is the radius of the earth.

Now if the radius of the earth is kept constant and mass of the earth is doubled.

The value of the new acceleration due to gravity will become,

g' = G2M/r²

Putting GM/r² = g,

g' = 2g

So, we can see that the new acceleration due to gravity because of the increase in the mass of the earth is two times of the earlier acceleration due to gravity.

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The gravitational force acting on the balls is different, so they won't necessarily move the same distance.

Everything falls at the same rate due to gravity. This explains why balls of different weights strike the ground simultaneously. The force acting downward is gravity, whereas the force acting upward is air resistance. The pull that is designated as tension is in that direction. As a result, the tension will point toward the string or rope and away from the mass. When a mass is hanging, the string pulls it upward, applying an upper force, which causes the tension to be on the upper side.

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the buoyant force on the ball is 4 N

buoyant force formula,

Fb=-ρgV

To calculate the buoyant force, the formula can be used: Fb=ρVg Fb = ρVg where Fb is the buoyant force in Newtons, ρ is the density of the liquid in kilograms per cubic meter, and V is the displaced volume of liquid in cubic metres. ), g is the gravitational acceleration

Buoyancy is the upward force on an object that is wholly or partially immersed in liquid. This upward force is also called thrust. Buoyancy causes a body that is wholly or partially immersed in liquid to appear weighed down. H. Easier

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A waterskier skis over the ramp shown in the figure at a speed of 30 ft/s, 7.73 ft/sec is rising as she leaves the ramp.

We assume the hypotenues = h

From the given figure (attached) ;

h² = x² + y²

Put the  values of x and y from the figure

h² = 15² + 4²

h² = 225 + 16

h² = 241

Take under root on both sides

h = √241

From the figure the value of sin∅ = 4/h

Put value of h

sin∅ = 4 / √241

The rate at which she is rising = verticle velocity

The rate at which she is rising = 30sin∅

Put the value of sign∅

The rate at which she is rising = (30 * 4) / √241

The rate at which she is rising = 7.73 ft/sec

The missing figure is attached.

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The box will be in rest due to net force applied on it is zero.

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

Given that Bert and Ernie are pushing on opposite sides of the box with force of same magnitude, let it be F.

So, net force acting om the force = F-F = 0.

As that net force acting on the box is zero, the box will be in rest.

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The displacement is zero because the mass's starting and final positions are identical (it returns to its initial position).

It alludes to the greatest departure from equilibrium that such an object in harmonic oscillator can exhibit. As an illustration, consider how a pendulum moves through its market equilibrium (straight down) and then moves outward to its maximum distance.

The vertical separation of both the wave from average is measured by amplitude. The wave axis, which is typically thought of as zero, is the average size of the wave across one cycle. Positive and negative numbers are assigned to heights between and above the average, accordingly.

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Assuming Jocko the clown (mass of 60kg) catches the 7kg bowling ball, which thrown into his direction at 10m/s, the energy that will lost in the collision is 313J (based on Conservation of momentum).

Conservation of momentum is a major law of physics which states that the momentum of a system is constant if no external forces are acting on the system.

Based from the question given :
m₁ (mass of jocko) = 60kg

v₁ (initial speed of jocko) = 0 m/s

m₂ (mass of bowling ball) = 7kg

v₂ (initial speed of bowling ball) = 10 m/s

Now let's use the conservation of momentum formula

m₁ * v₁ + m₂ * v₂ = (m₁ + m₂) * V

60 * 0 + 7 * 10 = (60 + 7) * V

V = 70 / 67 m/s

Energy lost = Kinetic energy initial (bowling ball) - Kinetic energy final

= 1/2 * m₂ * v₂² - 1/2 (m₁ + m₂) * V²

= 1/2 * ((7 * 10²) - (67 * (70/67)²))

= 1/2 * 626.86

= 313.43J

=313J (rounded)

Therefore, energy that lost in the collision is 313J.

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Mechanical waves come in two different varieties: longitudinal waves, in which the medium is moved in the same direction as the wave.

The motion of the wave and the particles is always parallel in longitudinal waves. A classic illustration of a longitudinal wave is a sound wave that is moving through air.

Particles are displaced perpendicular to the wave's direction in a transverse wave. Transverse waves, such as those that cause ripples on the water's surface and vibrations in a string, are examples.

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