We divide the electromagnetic spectrum into six major categories of light, listed below. Rank these forms of light from left to right in order of increasing wavelength. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help ultraviolet gamma rays radio waves visible light infrared X rays Shortest wavelength Longest wavelength Part B Rank the forms of light from left to right in order of increasing frequency. To rank items as equivalent, overlap them. ultravioletgamma raysradio wavesvisible lightinfrared X-ray

To calculate the capacitive reactance (Xc) of a 120 nF capacitor in a standard 120 Volt AC circuit with a frequency of 60 Hz, you can use the following formula: Xc = 1 / (2π * f * C)

Where Xc is the capacitive reactance, f is the frequency (60 Hz), and C is the capacitance (120 nF, or 120 * 10^-9 F).
Following are the steps :
Step 1: Convert capacitance to farads: 120 nF = 120 * 10^-9 F = 1.2 * 10^-7 F
Step 2: Multiply the frequency (60 Hz) by 2π: 2π * 60 ≈ 377
Step 3: Multiply the result from step 2 by the capacitance: 377 * 1.2 * 10^-7 ≈ 4.5 * 10^-5
Step 4: Take the reciprocal of the result from step 3: 1 / (4.5 * 10^-5) ≈ 22226

Therefore, the capacitive reactance (Xc) in this circuit is approximately 22,226 ohms.

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The operational motor in the hair dryer revolves the fan blades or impellers, propelling the air through the appliance to offer an organized air flow for drying tresses.

The electric motor in a hair dryer rotates the fan blades or impellers, bringing in unheated airflow at one end.

A vacuum cleaner evidently replicates a hair dryer since both uses a motor to create an air movement.

In terms of a vacuum cleaner, the motor drives a fan or impeller, thus providing suction to draw dirt and scoff from its near vicinity, while a hair dryer utilises its motor to drive a fan or impeller, making up a stream of heated air to rapidly dry hair. It's evident that these devices have various functions yet their mechanism to manipulate the environment remain close enough to be compared.

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Momentum is the product of an object's mass and velocity. To find the momentum of a 50-kg carton that slides at 4 m/s across an icy surface.

We can use the formula p = mv, where p is momentum, m is mass, and v is velocity.

In this case, the mass of the carton is 50 kg and the velocity is 4 m/s. So, the momentum of the carton can be calculated as follows:

p = mv
p = 50 kg x 4 m/s
p = 200 kg m/s

Therefore, the momentum of the 50-kg carton that slides at 4 m/s across an icy surface is 200 kg m/s. This means that the carton has a significant amount of momentum, which can be difficult to stop or change direction.

It is important to take precautions and use proper safety measures when handling or transporting heavy objects with high momentum to avoid accidents or injuries.

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The magnitude of the buoyant force is 30 N / 0.8 = 37.5 N. The buoyant force is the upward force exerted by a fluid on an object immersed in it.

It is equal to the weight of the fluid displaced by the object. In this case, the object is floating motionless, which means that the buoyant force is equal to the weight of the object.

The weight of the object is given by its mass multiplied by the acceleration due to gravity (g), which is 10 m/s^2. Therefore, the weight of the object is 3 kg x 10 m/s^2 = 30 N.

The specific gravity of the fluid is 0.8, which means that the fluid is lighter than water. The magnitude of the buoyant force is equal to the weight of the fluid displaced by the object, which is equal to its own weight divided by the specific gravity of the fluid.

Therefore, the magnitude of the buoyant force is 30 N / 0.8 = 37.5 N. None of the given options match the calculated value, so the answer is not among the options provided.

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The toughness/strength trade-off is a concept that describes the relationship between the ability of a material to withstand stress or deformation (strength) and its ability to resist fracture or failure (toughness).

Generally, materials that are stronger are often less tough, and those that are tougher are often less strong. This is because the properties that make a material strong, such as its hardness and stiffness, often make it more susceptible to brittle fracture, while materials that are tough, such as those that can absorb a lot of energy before breaking, often have lower strength. Thus, when designing materials for specific applications, engineers must carefully balance the desired levels of toughness and strength to ensure that the material can perform its intended function without failing.

The toughness-strength trade-off refers to the balance between a material's ability to absorb energy before fracturing (toughness) and its ability to resist deformation under an applied load (strength). In many cases, as the strength of a material increases, its toughness decreases, and vice versa. This trade-off is important to consider when selecting materials for specific applications, as engineers must find the right balance between the material's strength and toughness to meet the desired performance criteria.

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The default storage mechanism for Core Data is B) SQLite.

Core Data is a framework provided by Apple that allows developers to manage the model layer objects in an application. It supports several different storage mechanisms, including XML, Binary data, and SQLite. However, SQLite is the default storage mechanism used by Core Data.

SQLite is a lightweight and fast database engine that is commonly used in mobile and desktop applications. It provides a reliable and scalable way to store and query data in an application.

Developers can customize the storage mechanism used by Core Data by specifying a different type of persistent store, but for most applications, B) SQLite provides a good balance of performance and functionality.

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When you increase the gas temperature inside the cylinder while keeping the pressure constant, the height of the piston would increase. This occurs because, according to Charles' Law (V1/T1 = V2/T2), as temperature (T) increases, the volume (V) of the gas must also increase to maintain the constant pressure.

The increase in volume leads to a higher piston height to accommodate the expanded gas.

According to Charles's Law, when the temperature of a gas is increased at constant pressure, the volume of the gas increases proportionally. In this case, the gas inside the cylinder is confined by the piston. Therefore, as the gas temperature increases, the volume of the gas expands, pushing the piston upwards. This means that the height of the piston would increase when you increase the gas temperature inside the cylinder while keeping the pressure constant.

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Entropy (s°) is a thermodynamic property that measures the degree of disorder or randomness in a system.  The correct option is B. CO(g)

The higher the entropy, the more disordered the system is. Therefore, to determine which species has the highest entropy at 25°C, we need to consider their molecular structures and their states of matter at the given temperature.

At 25°C, the species that has the highest entropy is most likely to be in the gaseous state, as gases have higher entropy than liquids or solids due to their more disordered and random arrangements of molecules. Among the given species, water (H2O), carbon dioxide (CO2), and methane (CH4) are all gases at 25°C.

However, methane (CH4) has the highest entropy (s°) at 25°C because it has the most complex molecular structure among the three gases. Methane consists of a carbon atom bonded to four hydrogen atoms, which allows for more possible arrangements and orientations of the molecules, increasing the degree of disorder and entropy. In contrast, water and carbon dioxide have simpler molecular structures, with fewer possible arrangements and lower degrees of entropy.

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Complete question is:

Which of these species has the highest entropy (S) at 25 degree C?

A. CH3OH(l)

B. CO(g)

C. MgCO3(s)

D. H2O(l)

5.Si(s)

The  answer  is that the choice between a cosine or sine function for modeling the position of an object with a phase shift depends on the initial conditions of the object's motion.


If the object starts from its equilibrium position (i.e., its initial position, velocity, and acceleration are zero), then both the sine and cosine functions can be used interchangeably, as they will produce the same results. However, if the object starts from a non-equilibrium position, then the choice between the two functions will depend on the specific initial conditions.

When using a sine function with a phase shift of zero, the initial position will be the amplitude of the function (i.e., the maximum displacement from the equilibrium position). The initial velocity will be zero, as the function crosses the equilibrium position at that moment. The initial acceleration will be negative, as the function is concave downward at that moment.

On the other hand, when using a cosine function with a phase shift of zero, the initial position will also be the amplitude of the function. However, the initial velocity will be positive, as the function reaches its maximum displacement from the equilibrium position at that moment. The initial acceleration will be zero, as the function changes from concave upward to concave downward at that moment.

Therefore, the choice between a sine or cosine function for modeling an object's motion depends on the initial conditions of the object's position, velocity, and acceleration.

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The correct answer is e. 0.25. According to the Law of Universal Gravitation, the force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

This means that when the distance between the centers of two objects is doubled, the force between them is reduced to 1/4 of its original value.

Therefore, if the distance between the centers of two objects is doubled and the masses remain constant, the force between the objects is multiplied by a factor of 1/4, or 0.25. This is because the inverse square law states that the force decreases exponentially as the distance between the objects increases.

Understanding this law is important in many fields, including astronomy, physics, and engineering, as it helps to explain the behavior of celestial bodies and the forces that govern their motion.
According to the Law of Universal Gravitation, the gravitational force (F) between two objects with masses (m1 and m2) and a distance (r) between their centers is given by the equation:

F = G * (m1 * m2) / r^2

where G is the gravitational constant.

When the distance between the centers of the objects is doubled (2r), the new gravitational force (F') can be calculated as follows:

F' = G * (m1 * m2) / (2r)^2

Now, we can simplify this equation:

F' = G * (m1 * m2) / (4 * r^2)

From the original equation, we know that F = G * (m1 * m2) / r^2. Therefore, we can rewrite the new equation as:

F' = (1/4) * F

This shows that when the distance between the centers of two objects is doubled, the force between the objects is multiplied by a factor of 1/4 (0.25).

So, the correct answer is e. 0.25.

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Therefore, the vertical displacement of the pendulum bob at 20 degrees is approximately 0.0603 meters.

To find the vertical displacement of a pendulum bob at a certain angle, we can use the formula:

h = L - L*cos(theta)

where:

h is the vertical displacement of the pendulum bob

L is the length of the pendulum

theta is the angle the pendulum makes with the vertical

Assuming the pendulum is released from the vertical position and swings to 20 degrees, we can use this formula with L = 1 (meter) and theta = 20 degrees:

h = 1 - 1*cos(20)

h = 1 - 0.9397

h = 0.0603 meters

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As I look through the hole on the right side of the closed opaque box, I can see a small light bulb that is on inside the box. However, due to the presence of a wall inside the box and the rough surfaces of all the box's surfaces that are painted black, I may not be able to see the entire contents of the box, but only a portion of it.

Based on the given information, when you look through the hole in the closed opaque box with rough surfaces painted black, you will see the small light bulb that is on. The wall inside the box may obstruct some parts of the interior, but the light emitted by the bulb will allow you to see it and possibly some nearby surfaces, although they will appear dark due to the black paint.

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"Positive work will be done by the gas", and "its volume could remain constant". These are the correct options.

When heat is added to an ideal gas as it is getting compressed, the temperature of the gas increases and the internal energy of the gas increases as well.

This means that the gas can do work on its surroundings since it has more energy available to do so.

Since the gas is getting compressed, the work done by the gas will be positive, since the force and displacement are in the same direction. Therefore, the statement "positive work will be done by the gas" is correct.

The volume of the gas could remain constant if the compression is isothermal, which means the temperature of the gas remains constant during the compression process.

In this case, the pressure of the gas will increase, but the volume will remain constant. Therefore, the statement "its volume could remain constant" is also correct.

The other statements are not necessarily true in this scenario. The volume of the gas does not have to decrease or increase, since it could remain constant.

It is also not necessary that negative work will be done by the gas since the gas is getting compressed and can do positive work on its surroundings.

Finally, both positive and negative work will not necessarily be done by the gas, since the sign of the work depends on the direction of the force and displacement, which could be either positive or negative.

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Black holes are among the oddest and most intriguing celestial bodies. Even light cannot escape their gravitational pull due to their immense density and strength.

Yes, a blackhole might theoretically continue to consume everything in the universe if the matter entered its event horizon.

Nevertheless, as galaxies move apart, space is expanding. And because a portion of the universe will always have escaped, this circumstance will never arise as long as one galaxy is growing away from another galaxy.

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The resistivity of the wire material is 2.56 × 10⁻⁷ Ωm.

The wire has a length of 11.0 m, a width of 1.6 mm, and a thickness of 0.11 mm. The car battery provides 12.0 V, and the current drawn is 7.5 A.

To find the resistivity, follow these steps:

1. Calculate the resistance (R) using Ohm's law: V = IR.
2. Calculate the cross-sectional area (A) of the wire.
3. Use the formula for resistivity: ρ = RA/L.

Step 1: Calculate the resistance (R).
R = V/I = 12.0 V / 7.5 A = 1.6 Ω

Step 2: Calculate the cross-sectional area (A) of the wire.
A = width × thickness = (1.6 × 10⁻³ m) × (0.11 × 10⁻³ m) = 1.76 × 10⁻⁷ m²

Step 3: Use the formula for resistivity (ρ).
ρ = RA/L = (1.6 Ω)(1.76 × 10⁻⁷ m²) / (11.0 m) = 2.56 × 10⁻⁷ Ωm

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The magnitude of the electric potential at the surface of sphere A is equal to the magnitude of the electric potential at the surface of sphere B. This is because, in electrostatic equilibrium, the charges on the conducting spheres distribute themselves evenly, and the electric potential is constant throughout the surface of each sphere.

When the two spheres are connected by a metallic wire, the charges on the spheres can flow through the wire until the potentials on each sphere are equal. This process continues until the charges are distributed evenly across both spheres, and the potential is the same everywhere on the surface of each sphere.
The electric potential at the surface of sphere A is the same as the electric potential at the surface of sphere B when the two spheres are connected by a metallic wire in electrostatic equilibrium. This is due to the equal distribution of charges on both spheres, resulting in a constant electric potential throughout their surfaces.

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The resilience of a material is defined as the ratio of the energy stored in the material to the energy required to deform it. Mathematically, resilience is given by the equation.

Resilience = (Energy stored) / (Energy required to deform)

Given that the resilience of the protein resilin is 0.92, we can use this information to determine the energy required to stretch it, as well as the energy stored when it relaxes.

Let's denote the energy required to stretch the resilin as W and the energy stored when it relaxes as 6.00 J (given in the question).

Resilience = (Energy stored) / (Energy required to deform)

0.92 = 6.00 J / W

Solving for W, we can rearrange the equation as:

W = (Energy stored) / (Resilience)

W = 6.00 J / 0.92

Plugging in the given values, we can calculate the energy required to stretch the resilin:

W = 6.00 J / 0.92

W ≈ 6.52 J

So, the work done to stretch the resilin is approximately 6.52 J.

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The difference between the sum of 2 protons, 2 neutrons, and 2 electrons (4.0322980 amu) and the measured mass of helium (4.00260 amu) is due to the release of energy during the formation of helium. When two hydrogen atoms combine to form helium,.

some of the mass is converted to energy in accordance with Einstein's famous equation E=mc^2. This energy is released in the form of light and heat. Therefore, the missing mass is converted to energy during the formation of helium. When protons, neutrons, and electrons come together to form an atom, some of the mass is converted into energy, which is used to hold the nucleus together. In the case of helium (He), the mass defect is 0.0296980 amu. This mass is converted into energy to maintain the stability of the helium nucleus.

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Yes, it is possible for a roller skate and a truck to have the same momentum if the roller skate is moving at a high velocity and the truck is moving at a much lower velocity.

Momentum is calculated by multiplying an object's mass by its velocity, so if the roller skate has a very small mass but is moving very quickly, its momentum could be equal to a truck with a much larger mass but a slower velocity. However, it is important to note that this scenario is unlikely in real-life situations and would require specific conditions to occur. A roller skate and a truck can have the same momentum in a situation where the product of the mass and velocity for each is equal. Momentum (p) is calculated using the formula p = mv, where m is mass and v is velocity.

For example, if a roller skate with a mass of 1 kg moves at a velocity of 10,000 m/s, its momentum would be 10,000 kg·m/s. If a truck with a mass of 5,000 kg moves at a velocity of 2 m/s, its momentum would also be 10,000 kg·m/s. In this scenario, both the roller skate and the truck have the same momentum.

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The hour hand on a certain clock is 9.9 cm long. Find the tangential speed of the tip of this hand. To express the answer using two significant figures.

The length of the hour hand is given as 9.9 cm.

The circumference of the circle traced by the tip of the hour hand is given by 2πr, where r is the length of the hour hand.

So, the circumference traced by the tip of the hour hand is 2π(9.9 cm) = 62.136 cm.

In one hour, the hour hand makes one complete revolution, which is equal to the circumference traced by the tip of the hand.

Therefore, the tangential speed of the tip of the hour hand is equal to the circumference traced by the tip of the hand in one hour, which is 62.136 cm/hour.

To convert this to mm/s, we divide by 3600 (the number of seconds in an hour) and multiply by 10 (to convert cm to mm).

So, the tangential speed of the tip of the hour hand is (62.136/3600) x 10 mm/s = 1.7 mm/s (rounded to two significant figures).

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The most effective way for the teacher to informally assess the class's ability to differentiate between longitudinal and transverse wave behavior would be to use a hands-on activity where students create and observe both types of waves.

For example, the teacher could provide slinkies and have students create longitudinal waves by stretching and compressing the slinky, and transverse waves by shaking the slinky side to side. The teacher could then ask students to identify which type of wave behavior they observed.

This type of activity engages students in a kinesthetic learning experience that allows them to physically create and observe both types of waves, making it easier for them to differentiate between the two.

Additionally, this type of informal assessment allows the teacher to observe individual student understanding and provide immediate feedback.

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The distance from the charge at which the electric potential equals 12 V is about 7.5 108 m. Therefore the correct option is option B.

The electric potential owing to a point charge can be calculated as follows:

V = k * Q / r

where V represents the electric potential, k represents the Coulomb constant (9 109 Nm2/C2), Q represents the charge, and r represents the distance from the charge.

We are given a 12 V electric potential and a charge of 1.0 C. When we enter these values into the formula, we get:

[tex]12 = (9 × 10^9 N·m^2/C^2) * (1.0 C) / r[/tex]

When we solve for r, we get:

[tex]r = (9 × 10^9 N·m^2/C^2) * (1.0 C) / 12[/tex]

[tex]r = 7.5 × 10^8 m[/tex]

As a result, the distance from the charge at which the electric potential equals 12 V is about 7.5 108 m, which is similar to option (B) 7.5 108 m.

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The energy change, ΔE, when an electron goes from the n = 2 shell to the n = 3 shell in a hydrogen atom is positive.

To calculate the energy change, follow these steps:

1. Write the formula for the energy of the hydrogen atom: E = -C/n²
2. Substitute n = 2 for the initial shell: E₁ = -C/2² = -C/4
3. Substitute n = 3 for the final shell: E₂ = -C/3² = -C/9
4. Calculate the energy change ΔE: ΔE = E₂ - E₁ = (-C/9) - (-C/4)
5. Simplify ΔE: ΔE = C(4 - 9) / (9 * 4) = 5C/36

So, the energy change when an electron goes from the n = 2 shell to the n = 3 shell in a hydrogen atom is positive, with a value of 5C/36.

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The electrically charged particles that produce electric currents and therefore magnetic fields when they move inside Uranus and Neptune are primarily ionized gases, specifically a mix of hydrogen, helium, and methane ions.

Both Uranus and Neptune have magnetic fields that are tilted with respect to their rotation axes, and they also exhibit periodic variations in their magnetic fields. These phenomena are thought to be caused by the motion of electrically charged particles in their interiors.

The interiors of Uranus and Neptune are believed to consist of a rocky core surrounded by layers of liquid water, methane, and ammonia. Above these layers lies a thick atmosphere consisting mainly of hydrogen and helium with traces of methane.

Due to the extreme pressure and temperature within their interiors, the hydrogen and methane in these atmospheres become ionized, meaning they lose or gain electrons and become electrically charged. These ionized gases then move and flow, creating electric currents and magnetic fields.

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If scientists are interested in studying the composition of the early solar system, the best objects to study are meteorites and comets.

These celestial bodies are considered remnants from the formation of the solar system and can provide valuable insights into its composition and history.

Comets, on the other hand, are icy bodies that originate from the outer solar system and periodically pass through the inner solar system. They are composed of frozen water, gases, and dust and can provide information about the conditions present in the outer solar system at the time of their formation.

When comets pass near the Sun, they release gas and dust, forming a visible coma and tail that can be observed from Earth. Scientists can study the composition of comets by analyzing the gases and dust that are released, which can provide insights into the conditions that existed in the early solar system.

Both meteorites and comets are important sources of information about the early solar system and can help scientists better understand the processes that led to the formation of our solar system and the planets within it.

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Two musical strings have the same length and tension, but string A has one fourth the mass of string B. We need to determine the speed of a wave on string A.

The speed of a wave on a string can be calculated using the formula:
v = √(T/μ)

where v is the wave speed, T is the tension, and μ is the linear mass density (mass per unit length).

Since the tension is the same for both strings, we'll focus on the linear mass density. Let μ_A and μ_B represent the linear mass densities of strings A and B, respectively. Given that string A has one fourth the mass of string B, we can write:
μ_ A = (1/4)μ_ B

Now we can find the ratio of the wave speeds on the two strings:
v_ A / v_ B = √(T/μ _A) / √(T/μ _B)

Since the tensions are the same, they cancel out:
v_ A / v_ B = √(1/μ_ A) / √(1/μ_ B)

Now, substitute the relationship between μ_A and μ_B:

v_ A / v_ B = √(1/[(1/4)μ_B]) / √(1/μ_B)
v_ A / v_ B = √(4/μ_B) / √(1/μ_B)

Taking the ratio, we get:

v_ A / v_ B = √4
v_ A = 2v _B

The speed of a wave on string A is twice the speed of a wave on string B.

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The lateral displacement of light due to refraction in this parallel-sided glass block is 2.27 cm.

To calculate the lateral displacement xy of light due to refraction, we need to use the formula:
xy = t x sin(theta)
where t is the thickness of the glass block and theta is the angle of incidence.
Since the surfaces of the glass block are parallel, the angle of incidence is equal to the angle of emergence, which is also equal to the angle of refraction. Therefore, we can use Snell's law to find the angle of refraction:
n1 x sin(theta1) = n2 x sin(theta2)
where n1 and n2 are the refractive indices of the media on either side of the glass block.
Assuming that the glass block is surrounded by air (which has a refractive index of approximately 1), we can write:
sin(theta1) = sin(0) = 0
and
sin(theta2) = n1/n2
Substituting these values into Snell's law, we get:
n1 x 0 = n2 x (n1/n2)
which simplifies to:
theta2 = sin^-1(n1/n2)
Now we can use this angle and the thickness of the glass block to calculate the lateral displacement:
xy = t x sin(theta) = t x sin(theta2)
Substituting the values for n1, n2, and t, we get:
xy = 3 cm x sin(sin^-1(1.5/1.0)) = 3 cm x sin(48.2 degrees) = 2.27 cm

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1 is positive, 2 is neutral, and 3 is negative. Therefore, option (C) is correct.

Charged particles' Lorentz force is modified by the magnetic field in the circumstance where the magnetic field is out of the page. According to the right-hand rule, the palm symbolises the force when the fingers point in the particle's velocity and the thumb points in the magnetic field.

Positively charged particles curve clockwise due to the Lorentz force, which pushes them perpendicular to their velocity and magnetic field. As the force works in the opposite direction for negatively charged particles, they curve anticlockwise.

Since particle 1's route is clockwise, it must be positively charged. Since it goes straight and is unaffected by the magnetic field, particle 2 is neutral. Due to its anticlockwise motion, particle 3 must be negatively charged. Therefore, option (C) is correct.

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Based on the information provided, the most likely cause of the malfunction is a faulty start button or a faulty motor starter coil. Since the motor operates when the power contacts are manually closed at the motor starter, this indicates that the motor itself is functional.

The fact that a voltmeter connected at points x1 and x2 indicates proper voltage also suggests that the power supply is working correctly. However, the lack of voltage at points 3 and x2 indicates that there may be an issue with the motor starter coil or the start push button, as these components are responsible for energizing the motor starter and allowing it to operate.


Given these observations, the most likely cause of the malfunction is a faulty or damaged start push button or an issue in the wiring between the start push button and the motor starter (points 1 to 3). This is because the motor operates when the contacts are closed manually, but not when the start push button is pressed, suggesting that the problem is related to the start push button or its connection to the motor starter.

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