The image below is a sketch of two-slit diffraction of light. Narrow slits at A and B act as wave sources, and waves interfering in various phases are shown at C, D, E, and F.

The final answer are resistance of a circuit is directly proportional to the power rating of the bulb. As a result, a 75-watt light bulb has a higher resistance than a 100-watt light bulb.

(a) A 100-watt light bulb draws more current than a 75-watt light bulb.

(b) A 75-watt light bulb has a higher resistance than a 100-watt light bulb. The current drawn by a circuit is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit, as per Ohm's law.

As a result, the resistance of the light bulb can be determined by measuring the current flowing through it and the voltage across it. The resistance of a circuit is defined as the ratio of the voltage applied to the circuit to the current flowing through it.

Therefore, if we look at the above question, since the power of the bulb is proportional to the product of voltage and current, we can say that a 100-watt bulb would draw more current than a 75-watt bulb. This is due to the fact that the current drawn by the bulb is proportional to the power that the bulb can handle.

However, the resistance of a circuit is directly proportional to the power rating of the bulb. As a result, a 75-watt light bulb has a higher resistance than a 100-watt light bulb.

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A stationary probe placed in a fluid flow that measures pressure and temperature at one location in the flow is an Eulerian measurement.

An Eulerian measurement is a measurement made at a fixed point in space and time. The probe records the changes in pressure and temperature that occur over time as the fluid flows past the fixed point.

This type of measurement is useful for understanding the behavior of the fluid at a particular location, but it does not provide information about the individual fluid particles.

On the other hand, a Lagrangian measurement is a measurement that follows the movement of an individual fluid particle over time.

This type of measurement is useful for understanding the path that a particular fluid particle takes through the fluid.

Overall, the use of Eulerian and Lagrangian measurements depends on the type of information required about the fluid flow.

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The block will rise to a height of approximately 4.36 cm after the bullet becomes embedded in it.

We can use the principle of conservation of momentum to solve this problem. The total momentum of the system (bullet + block) before the collision is,

p_before = m_bullet * v_bullet

where m_bullet is the mass of the bullet and v_bullet is its speed.

After the collision, the bullet becomes embedded in the block, so the total mass of the system is,

m_total = m_bullet + m_block

The velocity of the combined bullet-block system after the collision can be calculated using the conservation of momentum,

p_before = p_after

m_bullet * v_bullet = (m_bullet + m_block) * v_after

where v_after is the velocity of the combined bullet-block system after the collision.

Solving for v_after,

v_after = (m_bullet * v_bullet) / (m_bullet + m_block)

Now, we can calculate the kinetic energy of the bullet-block system just after the collision,

KE_after = (1/2) * (m_bullet + m_block) * v_after^2

The initial kinetic energy of the bullet is,

KE_before = (1/2) * m_bullet * v_bullet^2

The difference between these two energies represents the energy that has been transferred to the block,

delta_KE = KE_before - KE_after

This energy is used to raise the block to a certain height h. If we assume that all of this energy is converted into potential energy, then we can write,

delta_KE = m_block * g * h

where g is the acceleration due to gravity.

Solving for h,

h = delta_KE / (m_block * g)

Substituting the expressions for delta_KE, m_block, v_bullet, and v_after,

h = [(1/2) * m_bullet * v_bullet^2] / [(m_bullet + m_block) * g]

Substituting the given values,

h = [(1/2) * 0.0268 kg * (230 m/s)^2] / [(0.0268 kg + 1.40 kg) * 9.81 m/s^2] = 0.0436 m

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The wave's speed on the slinky is 1.504 m/s

The speed of the wave on the slinky is 3.2 meters per second. This is calculated by dividing the frequency of the wave (3.2 Hz) by the wavelength of the wave (0.47 m). The speed of the wave on the slinky is an important factor to consider when studying wave motion and behavior on a slinky. The speed of the wave determines how quickly it can move along the slinky, and it will have an effect on the wave's properties, such as its amplitude, frequency, and wavelength.

The wave's speed on the slinky (in m/s) is 1.504 m/s. The slinky's wavelength is 0.47 m. Continuous waves travel at a frequency of 3.2 Hz on the slinky. The following formula can be used to determine the wave speed: Wave speed = Frequency x Wavelength.

The following formula can be used to calculate wave speed in general:

Wave speed = Distance/time

Let us now use the first formula to solve the question:

Wave speed = Frequency x Wavelength

Wave speed = 3.2 Hz x 0.47 m

Wave speed = 1.504 m/s

Therefore, the wave's speed on the slinky is 1.504 m/s.

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According to the question the speed of the balls just before they collide is 1.81 m/s.

Collide is a term used to describe the process of two objects or particles coming into contact with each other, often resulting in a collision. In physics, the term is used to refer to the force of two objects impacting one another. In everyday language, the term is used to describe two things, such as people or ideas, coming together in a way that produces a powerful impact.

The initial energy of the system can be calculated as:
[tex]E_{initial[/tex] = m₁*g*h + 0
where m_1 is the mass of the upper ball (2.0 kg), g is the acceleration due to gravity (9.8 m/s²), and h is the vertical distance between the two balls (12.0 cm).
The final energy of the system can be calculated as:
[tex]E_{final} = (m_1 + m_2)\times v^2[/tex]
where m_1 and m_2 are the masses of the two balls (2.0 kg and 3.0 kg, respectively), and v is the velocity of the lower ball when the two balls stick together.
From these equations, we can solve for v:
[tex]v = sqrt[(m_1\timesg\timesh)/(m_1 + m_2)] = sqrt[(2.0 kg\times9.8 m/s^2\times12.0 cm)/(2.0 kg + 3.0 kg)] = 1.81 m/s[/tex]
Therefore, the velocity of the lower ball when the two balls stick together is 1.81 m/s.

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Vector V is a vector with a magnitude of 6 miles per hour in a northwesterly direction on the coordinate plane. The magnitude of vector V is 6, and its direction is northwesterly.

cos θ = x / r, sin θ = y / r,

tan θ = y / x,

where θ is the angle between the vector and the x-axis, x and y are the coordinates of the vector on the coordinate plane, and r is the magnitude of the vector.

The magnitude of vector V: The magnitude of vector V is 6 miles per hour.

Therefore, r = 6.

The direction of vector V: the angle θ, the x and y components of vector V must be determined.

The angle between vector V and the x-axis is 45 degrees since the vector is going northwesterly, so the angle is halfway between 90 degrees for directly up and 0 degrees for directly to the right. Because the angle is 45 degrees, the x and y components are equal.

Therefore, the x and y components are both 6 / √2. Using

cos θ = x / r and sin θ = y / r,

The values of cos θ and sin θ.cos θ

 = 6 / √2 / 6

 = 1 / √2, and

sin θ = 6 / √2 / 6

       = 1 / √2.

Since cos θ = 1 / √2 and sin θ = 1 / √2, θ

                  = 45 degrees.

Tan θ = y / x

        = 1 / 1, so θ

        = tan⁻¹(1)

       = 45 degrees.

Therefore, the magnitude of vector V is 6, and its direction is northwesterly.

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To change 500g of water at room temperature (20°C) to steam at 100°C, you will need to add 1128.500 kJ of heat. This is because water requires a certain amount of heat energy, called the 'latent heat of vaporization', to turn from a liquid to a gas.

Mass of water (m) = 500g

Initial temperature ([tex]T_i[/tex]) = 20°C

Final temperature ([tex]T_f[/tex]) = 100°C

The heat of vaporization ([tex]H_{vap}[/tex]) = 2260 J/g.

To calculate the amount of heat required to convert 500 g of water at room temperature to steam at 100°C, we will use the formula:

[tex]Q = m \times H_{vap}\\Q = 500 g \times 2260 J/g\\Q = 1128500 J[/tex]

Therefore, it would take 1130000 J of heat to change this water to steam at 100°C.

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The star might be quite large in size, with a much larger surface area than the sun. This would increase its luminosity despite its cooler temperature.

The star has a high luminosity (100,000 x the sun's) and a cool temperature (3500 K) because of its size.

A star's luminosity is proportional to its size, so if a star is very large, it can have a high luminosity even if it is relatively cool.

Another possibility is that the star is in a phase of its life cycle where it has expanded and cooled, such as a red giant or supergiant, but still retains a high luminosity due to its large size.

These stars have relatively low surface temperatures, but their large sizes give them very high luminosities.

Therefore, this star is likely very large and thus has a very high luminosity despite its low temperature.

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The effect of increasing the length of the dye molecules on their absorption wavelength can be complex, as two competing effects are at play. Equation (5) would suggest that as the number of repeating units in the dye molecule, n, increases, the absorption wavelength should decrease.

However, as the length of the dye molecule, l, increases, the absorption wavelength should increase. Which effect will win out depends on the relative magnitude of the increase in l compared to the increase in n. If the increase in l is greater than the increase in n, then the absorption wavelength will increase, and vice versa.

Ultimately, the effect of increasing the length of the dye molecule on the absorption wavelength will depend on the specifics of the dye molecule, such as its composition and the size of the repeating units.

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True, energy can be transferred from kinetic energy (KE) to potential energy (PE) and vice versa

The principle of the conservation of energy states that energy cannot be created or destroyed but can only transferred or transformed from one form to another.

When an object is in motion, it has kinetic energy, and when it is at rest, it has potential energy.

When the object moves from a stationary position to a position in motion, some of its potential energy is converted into kinetic energy.

Conversely, when the object moves from a position in motion to a stationary position, some of its kinetic energy is converted into potential energy.

Hence, the statement is TRUE.

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The acceleration of the skateboarder while going down the ramp is found to be 1m/s².

The skateboarder began to go down the ramp and that at a speed of 1.0m/s. After 3 seconds it is found that the speed of the skater is increased to 4.0m/s.

We can use the equation,

V = U+at, where, V is final speed, a is acceleration, t is time and U is initial speed.

Putting all the values,

4 = 1 +a(3)

a = 3/3

a = 1m/s²

The acceleration of the skateboarder is 1m/s².

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The frequency of the standing wave set up by the microwave is 8 GHz (or 8 × 10^9 Hz).

What is Wavelength?

The wavelength of the microwave is 12.2 cm, and the distance between the two parallel walls is 48.8 cm.

frequency is:

f = v/λ

where `v` is the velocity of the wave and `λ` is the wavelength of the wave.

to calculate the velocity of the microwave:

`v = 2dƒ`

where `d` is the distance between the two walls and `ƒ` is the frequency.

Substituting the given values,`

v = 2(0.488)ƒ`.

Rearranging the equation for `ƒ`,

'ƒ = v/2d`.

Substituting `v` and `d` with the values given in the question:

`ƒ = (2 × 0.488) / (2 × 0.122)`.

Simplifying the expression,

`ƒ = 8`.

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Answer:

igneous rock is produced when magma exits and cools above (or very near) the Earth's surface. These are the rocks that form at erupting volcanoes and oozing fissures.

Based on Joshua's observation that he sees two different colored stars in the night sky, he can infer that the two stars have different temperatures.

When Joshua sees two different colored stars in the night sky, he can infer that the two stars have different temperatures. This is because the colors of stars depend on their temperatures. When a star is blue, it means that it's hotter than a star that is yellow or red.

As a result, Joshua can infer that the two stars have different temperatures due to their colors.A star's temperature is determined by its color. The color of a star is determined by its surface temperature.

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Based on the above,  3.75 x 10¹² electrons have been added to the glass rod.

To determine the number of electrons added to the glass rod, we need to know the charge of a single electron. One electron has a charge of -1.6 x 10⁻¹⁹ C.

Charge added to the glass rod = -0.6 μC = -0.6 x 10-⁶ C

Number of electrons added to the glass rod = (charge added to the rod) / (charge of a single electron)

Number of electrons added to the glass rod = (-0.6 x 10⁻⁶ C) / (-1.6 x 10⁻¹⁹C) = 3.75 x 10¹² electrons

Therefore, 3.75 x 10¹² electrons have been added to the glass rod.

For the second question, we can use Coulomb's law to determine whether the pith ball and metal plate are attracted or repulsed. Coulomb's law states that the force between two point charges is proportional to the product of their charges and inversely proportional to the square of the distance between them where

The force between the pith ball and the metal plate is:

F = k x q1 x  q2 / r²

Pugging the value in the formula, the answer will be:  F = -0.135 N.

The negative sign indicates that the force is attractive, so the pith ball and metal plate are attracted to each other.

For the third question, the force on the negatively charged object from problem 2 is 0.135 N, in the direction towards the positively charged pith ball.

For the fourth question, the force on the positively charged object from problem 2 is also 0.135 N, in the direction towards the negatively charged metal plate.

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See text below

You rub a glass rod with a piece of fur. If the rod now has a charge of -0.6 μC, how many electrons have been added to the rod?

A suspended pith ball possessing +10 μC of charge is placed 0.02 m away from a metal 'plate possessing -6 μC of charge. Are these objects attracted or repulsed?

What is the force on the negatively charged object from problem 2?

• What is the force on the positively charged object from problem 2?

The force f (in n) the person is exerting on the mower is 18 n.

The force of friction opposing the motion refers to the force that acts in the opposite direction to the motion of an object and makes it harder to move.

According to the given statement, the force of friction opposing the motion is equal to the force f (in N) the person is exerting on the mower.

This indicates that the person's pushing force must be equal to the force of friction opposing the motion for the mower to move at a constant speed.

Using the above information, we can calculate the force f (in N) that the person is exerting on the mower as 18 n since it is equal to the force of friction opposing the motion.

Therefore, the person must push with a force f (in N) of 18 n to overcome the friction and maintain a constant speed for the mower.

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The answer are energy used by the 600-watt toaster for 6.0 min is 0.06 kWh (kilowatt-hours).

To solve the problem, we must first calculate the power of the toaster and the time it is in use. The toaster's power is given to be 600 watts, and the time it's in use is 6 minutes.

The formula for calculating energy is given below. Energy = Power x Time Energy = 600 x 6 Joules

Using the conversion factor, we can convert joules to kilowatt-hours (kWh).1 kWh = 3.6 x 10^6 J

Now, we can find out the energy used in kilowatt-hours.

Energy = 600 x 6 / (3.6 x 10^6) kWh Energy = 0.06 kWh

Hence, the energy used by the 600-watt toaster for 6.0 min is 0.06 kWh (kilowatt-hours).

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The relationship between weight and best range airspeed (VBR) and best endurance airspeed (VBE) is that both VBR and VBE increase with an increase in weight.

What is best range airspeed (VBR)? Best range airspeed (VBR) refers to the airspeed at which an aircraft can cover the maximum possible distance with minimum fuel consumption. At this airspeed, the lift-to-drag ratio is the highest.

What is best endurance airspeed (VBE)? Best endurance airspeed (VBE) refers to the airspeed at which an aircraft can remain in the air for the longest possible time with minimum fuel consumption. At this airspeed, the lift-to-drag ratio is the highest.

Relationship between weight and VBR and VBE is that both VBR and VBE increase with an increase in weight.

An increase in weight means an increase in the required lift to keep the aircraft in the air. As a result, the airspeed at which the lift-to-drag ratio is the highest increases.

This is why both VBR and VBE increase with an increase in weight.

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A lunar eclipse is an astronomical event where the Earth's shadow is cast onto the moon.

During a lunar eclipse, observers on the Earth would see the moon becoming dimmer and turning a reddish color, while observers on the moon would witness the Earth casting a shadow onto its surface.

The Earth is between the moon and the sun during a lunar eclipse, blocking the direct sunlight that normally illuminates the moon. This causes the moon to become dimmer and take on a reddish hue as indirect sunlight is refracted off of the Earth's atmosphere.

On the moon, observers would be able to see the Earth's shadow slowly moving across its surface. As the Earth's shadow covers the moon, the entire lunar surface will become darkened and take on a reddish hue. This is because indirect sunlight from the sun is refracted off of the Earth's atmosphere, providing a soft, red illumination to the moon's surface.

During a lunar eclipse, therefore, observers on the Earth and on the moon will witness the same kind of astronomical event.

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The principle that states that the buoyant force experienced by an object is exactly equal to the weight of the fluid displaced is known as Archimedes' Principle. What is Archimedes' Principle? Archimedes' Principle is a scientific law that explains how objects behave in fluids (liquids and gases).

The buoyant force of an object in a fluid is equal to the weight of the fluid displaced by the object according to this principle. This principle is valid for any fluid and any object as long as the buoyancy and weight of the object and fluid are calculated correctly.

The force that causes objects to float or sink in fluids is known as buoyancy. The buoyant force on an object is the net upward force exerted by the fluid in which the object is submerged.

When an object is immersed in a fluid, the fluid exerts an upward force on the object. This buoyant force opposes the weight of the object and causes it to float if the buoyant force is greater than the weight of the object.

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The charge (sign and magnitude) of a particle of mass 1.45 g must be for it to remain stationary when placed in a downward-directed electric field of magnitude 700 n/c is -1.029x10⁻⁴ C.

The magnitude of the charge must be equal to the magnitude of the electric field (700 n/c).

Therefore, we can write:-mg = qE

where, m = 1.45g = 1.45 x 10⁻³ kg

E = 700 N/cm = 1.45 x 10⁻³ kg x 9.81 m/s²

= 0.01419 N (Weight of the particle)

q = -1.029 x 10⁻⁴ C

To remain stationary when placed in a downward-directed electric field of magnitude 700 n/c, the charge (sign and magnitude) of a particle of mass 1.45 g must be negative.

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Answer:

i will change this answer when you attach a picture with it

Explanation:

The possible direction in which an electromagnetic wave is traveling if the electric field is oscillating along the z-axis and the magnetic field is oscillating along the x-axis is the y-axis.

An electromagnetic wave is composed of two mutually perpendicular fields that oscillate perpendicular to the direction of the wave's propagation. They are the electric field and the magnetic field. An electromagnetic wave is created when a charged particle is accelerated. These waves can travel through a vacuum or any medium, including air and water, at the speed of light.

In this scenario, the electric field of the wave oscillates along the z-axis, while the magnetic field oscillates along the x-axis. As a result, the wave's propagation direction must be perpendicular to both fields. As a result, the wave must be propagating along the y-axis.This is why it's critical to comprehend the interplay between electric and magnetic fields in the context of electromagnetic waves.

It's also critical to recognize that an electromagnetic wave's direction of propagation is always perpendicular to the oscillation directions of the two fields, which are mutually perpendicular to each other.

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The coefficient of static friction, μs, between the tires and the road needs to be greater than the centripetal acceleration divided by the gravitational acceleration.

In this case, the centripetal acceleration can be calculated as ac = [tex](v^2)/r[/tex], where v is the speed and r is the radius of the curve. Therefore, the required coefficient of static friction μs = ac/g, where g is the gravitational acceleration, should be greater than μs = [tex](121 km/h)^2[/tex] / (150m) / [tex]9.81m/s^2[/tex] ≈ 0.93.

This means that the coefficient of static friction should be greater than 0.93 in order for the car to be able to round a level curve of radius 150 m at a speed of 121 km/h. This coefficient of static friction is necessary to counteract the centripetal force, allowing the car to round the curve without slipping.

If the coefficient of static friction is not large enough, the car will not be able to round the curve at the speed specified.

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The answer is that the radio waves will arrive first at the Earth when a star emits red light, blue light, x-rays, and radio waves.

This is due to the fact that radio waves are long-wavelength electromagnetic radiation. As a result, they are less likely to be impeded or absorbed by the intervening space medium, and they can propagate without being affected by any other disturbances in the cosmos.

Furthermore, radio waves are not influenced by the earth's atmosphere, which is responsible for interfering with the passage of light rays to the surface of the earth. In other words, radio waves can traverse enormous distances in space without being obstructed or attenuated by any physical barrier.

Light rays, on the other hand, propagate via a straight line, which is known as the line of sight. Light rays may be deflected or absorbed by cosmic dust, gas clouds, or other materials found in interstellar space. This may cause them to travel in different directions, which might cause them to be redirected from their initial path. As a result, light rays must contend with these obstacles before reaching the earth, which may cause them to be weakened or distorted by the time they arrive.

Similarly, X-rays are also electromagnetic radiation but they are absorbed by interstellar matter. They are also affected by magnetic fields, and they might be redirected from their path as a result of the interstellar medium. This might cause them to be slowed down and travel a longer distance, making their journey longer.

Thus, radio waves will arrive first because of their long wavelength and low interaction with cosmic matter.

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if the particle velocity is perpendicular to the magnetic field lines, the force experienced by the particle will be the largest.

The force experienced by a moving charged particle in a magnetic field is given by the formula:

F = q v B sin(theta)

where F is the force, q is the charge of the particle, v is the velocity of the particle, B is the magnetic field strength, and theta is the angle between the velocity of the particle and the magnetic field.

The force experienced by the particle is maximum when sin(theta) is equal to 1, i.e., when the angle theta between the velocity of the particle and the magnetic field is 90 degrees. This means that the velocity vector of the particle is perpendicular to the magnetic field lines.

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The expected acceleration of the cart when two masses of 250 g are added to it, and a mass of 60 g is placed in the mass hanger of 5 g, given that its mass is 220 g is 1.55 m/s².

What is acceleration?

Acceleration is the change in velocity with respect to time. It can be defined as the rate at which the velocity of a body changes with respect to time. It is denoted by "a".

Mass is the amount of matter in a body or object. It is a scalar quantity, which is denoted by "m".

acceleration: a = (v - u) / t

Where; a = acceleration

v = final velocity

u = initial velocity

t = time taken

The expected acceleration of the cart:

Mass = Mass of cart + Mass of 2 masses

Mass = 220 g + (2 × 250 g)

Mass = 720 g

The total mass hanging on the mass hanger:

Mass on hanger = Mass of hanger + Mass on a hanger

Mass on hanger = 5 g + 60 g

Mass on hanger = 65 g

The net force acting on the system.

Net force = (Mass on hanger + Mass) × gNet force

                = (65 g + 720 g) × 9.8 m/s²

Net force = 7.06 N

The expected acceleration of the cart;

a = F / ma

  = (7.06 N) / (720 g)

a = (7.06 N) / (0.72 kg)a

  = 9.81 m/s² × (7.06 / 0.72)a

  = 1.55 m/s²

Therefore, the expected acceleration of the cart when two masses of 250 g are added to it, and a mass of 60 g is placed in the mass hanger of 5 g, given that its mass is 220 g is 1.55 m/s².

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The first dark fringe is located approximately 7.35 mm from the central maximum on the screen.

The location of the first dark fringe can be found using the formula:

y = (mλD) / d

where y is the distance from the central maximum to the first dark fringe, m is the order of the fringe (m = 1 for the first dark fringe), λ is the wavelength of light, D is the distance from the double-slit to the screen, and d is the slit spacing (which is the sum of the slit width and the distance between the centers of the two slits).

The slit width is given as 0.15 mm = 0.00015 m, and the wavelength of light is 450 nm = 0.00045 m. The distance from the double-slit to the screen is 2.3 m.

To find the slit spacing, we need to know the distance between the centers of the two slits. If the double-slit is a single piece with two slits, the distance between the centers of the slits is usually given as the width of the slits plus the distance between them. If this information is not provided, we can assume that the distance between the centers of the slits is approximately equal to the width of each slit. Therefore, we can estimate the slit spacing as:

d ≈ 2 × 0.00015 m = 0.0003 m

Substituting the values into the formula, we get:

[tex]y = (1 × 0.00045 m × 2.3 m) / 0.0003 m[/tex]

y ≈ 7.35 m

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If a 2000-kg car traveling at 30 m/s hits a wall and comes to a complete stop in 0.03 seconds the force that was applied to the car is 6,000,000 N

The force applied to the car can be calculated using the formula:

Force = (mass x change in velocity) / time

Here, the mass of the car is 2000 kg, the initial velocity is 30 m/s, the final velocity is 0 m/s (since the car comes to a complete stop), and the time taken is 0.03 seconds.

Substituting these values, we get:

Force = (2000 kg x (0 m/s - 30 m/s)) / 0.03 s

Force = -6,000,000 N

The negative sign indicates that the force is acting in the opposite direction to the motion of the car. So, the force applied to the car by the wall is 6,000,000 N.

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According to the given statement, if the current that flows through the wire is uniform, the drift velocity is the greatest at the section of wire with diameter d.

As the current is uniform throughout the wire, so the current through a given cross-sectional area is the same. Also, the current density, J is given by:

J = I/A

where I is the current and A is the cross-sectional area of the wire. Thus, if the area of the cross-section of the wire is more, the current density will be less. The current density is inversely proportional to the area of the wire, i.e. J ∝ 1/A. Hence, the drift velocity is inversely proportional to the current density, i.e. v[tex]_d[/tex] ∝ 1/J.

Thus, the drift velocity is greater where the cross-sectional area is less. So, the drift velocity is greater at the section of wire with diameter d.

So, the answer is at the section of wire with diameter d

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