a nozzle with an area of 0.3 cm2 is attached to a garden hose with an area of 1.8 cm2. the flow rate through the nozzle is 0.18 l/s.

Answer:

1. The type of interference happening when intersecting light waves subtract from each other to create dark spots is known as destructive interference

Destructive interference happens when the positive displacement or crest of one wave is cancelled by the negative displacement, or through of another wave of the same frequency resulting in a wave with lower amplitude

The letter on the diagram that shows destructive interference is the letter "c"

2. When particles pass translate through a key hole, they do not interfere with each. Therefore, when light is considered as a stream of particles, when it passes through a keyhole, there will be no  interference, and the light will particles will not interact with other light particles such that the pattern formed on on a wall on the other where the particles impinge on will be the shape of the single slit or keyhole

3. Three behaviors of light that support the theory that light travels in waves includes;

a) Refraction

b) Interference

c) Diffraction

Refraction

Refraction describes the change in velocity of light when it travels from one medium to another of different density, in which the light changes its speed

Interference

Interference is the superposition of two or more waves with the addition of the wave displacements resulting in a wave of larger or lesser amplitude than each of the individual waves

Diffraction

Diffraction is defined as the tendency of light to bend or spread when it goes past an object placed in its path by passing around the objects edge

4. The properties of a blackbody radiator includes;

1) A blackbody radiator absorbs all electromagnetic radiation incident on it

2) A blackbody radiator is capable of emitting black-body radiation

3) The peak of the emitted radiation depends on the blackbody temperature

4) The length of the wavelength of the peak radiation is inversely proportional to the temperature of the blackbody

5) The blackbody has zero coefficient of reflection or transmission and therefore, it does not reflect incident heat or light which makes it black

An example of a blackbody radiator is a burglar alarm that flashes light when there is an incident but cannot be ordinarily seen because of its dark color which is meant to absorb all incoming light

Explanation:

Wave interference is the phenomenon which describes the effect of the coming together or superposition of two or more waves to result in a wave displacement at a given point that is either reinforced (larger), cancelled (lower) amplitudes or the waves may have their original amplitudes when there is no interference

The wave displacement for the waves coming from the same source are taken as vectors from which the combination is calculated by using vector addition.

Answer:

The type of interference happening when intersecting light waves subtract from each other to create dark spots is called destructive interference. The letter "C" on the diagram shows this phenomenon.

If light were made of a stream of particles, it would behave by traveling in straight lines when passing through a slit or a keyhole. The particles would not spread out or bend around the edges like waves do.

Three behaviors of light that support the theory that light travels in waves are:

Reflection: Light bounces off a surface, like a mirror, following the law of reflection.

Refraction: Light bends when it passes through different mediums, like water or glass.

Diffraction: Light waves spread out and bend around obstacles, like when it passes through a narrow slit.

Characteristics of a blackbody radiator include:

It absorbs all wavelengths of light that fall on it.

It emits radiation at all wavelengths according to its temperature.

An example of a blackbody radiator is a heated metal object that glows when it reaches high temperatures, such as a red-hot iron rod.

False. In a crystalline metal, the slip direction is the direction along which the dislocations move when deformation occurs.

It is not necessarily the direction with the shortest interatomic distance. The slip direction is determined by the crystal structure and the arrangement of atoms in the material. It is influenced by factors such as crystallographic planes and the arrangement of atoms within those planes. The slip direction is important for understanding the mechanical properties and deformation behavior of metals. In a crystalline metal, the atoms are arranged in a regular and repeating pattern called a crystal lattice. This organized arrangement gives the metal its characteristic structure and properties. The atoms are closely packed together in a three-dimensional arrangement, forming a crystal structure.

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Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

density = 0.17 g/cm³

1 mL = 1 cm³

12 mL = 12 cm³

So we have

mass = 0.17 × 12

We have the final answer as

Hope this helps you

When the Earth is at point C, Equinox happens.

In Equinox, the Sun is directly above the equitor making day and night equal in both hemispheres.

The x-component of the total momentum of the system before the collision is 9.850 kgm/s.

P = MV

3.94 x 2.50 m/s = 9.850kgm/s.

The definition of momentum is "mass in motion." Since every item has mass, if it is moving, it must have momentum because its mass is in motion. The amount of motion and the speed of the motion are the two factors that determine how much momentum an item possesses. An object's linear momentum sometimes referred to as translational momentum or simply momentum is the product of its mass and velocity.

It has both a magnitude and a direction, making it a vector quantity. If an item has mass m and velocity v, then it has momentum p. Momentum can be defined as the amount of motion. Quantity may be quantified in this case since an object has momentum if it is traveling and mass.

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The given statement is True.

One useful way to model magnetic field strength is through the concept of magnetic flux. Magnetic flux is a measure of the number of magnetic field lines passing through a given area.

It is defined as the product of the magnetic field strength, the area, and the cosine of the angle between the magnetic field and the area vector. Mathematically, it can be expressed as:

Φ = B * A * cos(θ)

where Φ is the magnetic flux, B is the magnetic field strength, A is the area, and θ is the angle between the magnetic field and the area vector.

Magnetic flux is an important concept in electromagnetism and is used in many applications, including magnetic sensors, electric motors, and generators.

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Answer:

d = 4[m]

Explanation:

Torque in physics is defined as the product of force by distance. This way you can use the following equation to calculate the torque.

\(T=F*d\)

where:

T = torque [N*m]

F = force [N]

d = distance [m]

Now replacing in the equation above.

\(84=21*d\\\\d= 4[m]\)

Answer: you can't consider carrying a backpack to class as not working cuz it is putting stress on your back

Explanation:

Answer:

centripetal acceleration

just took the test

The center-seeking change in velocity of an object moving in a circle is said to be centripetal speed.

Acceleration often deals with the rate of change in velocity of an object.

Velocity can be measured by dividing the distance travelled by an object versus the time interval it took to cover that distance

In uniform circular motion, the direction of the velocity often change a lot, so there is always an associated acceleration.

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Answer:

Momentum is mass*velocity. Cheetah: 74*31 = 2294 kg-m/s.

Answer:

Clockwise

Explanation:

To determine the direction of the current induced in the conducting bar moving in a constant magnetic field, you can apply the "right-hand rule." Here's how:

1. Place your right hand in the same direction as the magnetic field with your fingers extended.

2. Your thumb points in the direction of the bar's motion (in this case, to the left).

3. Your palm faces the direction of the current flow.

Given that the magnetic field direction is not provided, I’ll assume it's pointing out of the plane of the screen/page (towards you). In this case, as you follow the right-hand rule:

1. Point your fingers towards yourself, representing the magnetic field.

2. Place your thumb pointing to the left, representing the direction of the bar's motion.

3. Your palm should be facing down, which means the current direction is counterclockwise.

So, in this case, the direction of the induced current would be counterclockwise. If the magnetic field direction is reversed (into the plane), then the induced current would be clockwise.

Answer:

air friction

Explanation:

this helps with take of and landing.

Answer:

The heat of formation of the products of the heating of sugar, which is caramel is higher and due to the new complexes formed such there is increased change in free energy between the products and the reactants of the sucrose decomposition by heating, making the reaction is irreversible

Explanation:

Sugar, also known as sucrose, C₁₂H₂₂O₁₁, is a disaccharide made up two monosaccharides, fructose, C₆H₁₂O₆, and glucose, C₆H₁₂O₆ joined together by a glycosidic covalent bond as such the molecule of sugar has one less molecule of H₂O than the fructose and the glucose it is made of which on heating the sugar the glycosidic bonds break and due to deficiency in the amount of H₂O the fructose and glucose combine with themselves to form caramel which has a much lower hydrogen and oxygen proportion such as C₂₄H₂₆O₁₃, which is darker and contains free radicals making caramel sticky.

Therefore, the heat of formation of the caramel is higher and due to the formation of the complexes there is increased change in free energy between the products than the reactants of the decomposition of sugar by heating, therefore, the reaction is irreversible.

From lowest energy to highest energy, the hues of the spectrum are violet, indigo, blue, green, yellow, orange, and red. Can the visible spectrum be divided up into the several hues that make up visible light?

590–620 nm for orange Red: 620-750 nm (400–484 THz frequency) The violet spectrum of light has the maximum frequency and energy because it has the shortest wavelength. Red has the highest energy, the longest wavelength, and the lowest frequency. the hues that make up the visible light spectrum, including blue, green, red, yellow, orange, violet, and indigo. Actually, these are the hues of the rainbow. How many colours are there in the visible spectrum of light? They are all. A visible light spectrum is the name given to a rainbow of colours. What's the name of the

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Answer:i don't now

Explanation:

It is important to consider the local regulations when dealing with practical situations such as this one.

The distance traveled by water balloon, `d` = 3.45 m

The time taken by water balloon to travel the distance, `t` = 0.15 s

The acceleration due to gravity, `g` = 9.8 m/s²

We need to find the height of the floor where the resident lived on.

We know that the acceleration due to gravity, `g` acts in the downward direction.

Hence, the equation of motion in the vertical direction can be written as:    `d = u*t + (1/2)*g*t²

`Where, `u` is the initial velocity and we know that at the top point, the final velocity becomes zero, i.e., `v = 0`.

So, the above equation reduces to    `d = (1/2)*g*t²`

Solving for `h`, we get    `h = d` = `(1/2)*g*t²`/2

Substituting the given values, we get    `h = 3.45/2 = (1/2)*9.8*(0.15)² = 0.1656 m = 0.1656 m * 100 cm/m = 16.56 cm`

Therefore, the resident lived on the `1.656 m` or `165.6 cm` floor, considering a standard height of 10 ft = 120 inches = 304.8 cm.

However, it might vary from region to region based on the building code and regulations.

Hence, it is important to consider the local regulations when dealing with practical situations such as this one.

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I can’t understand your question

Some people object to the inverted pyramid style, saying it has lost its usefulness for a variety of reasons, including- Increased reader sophistication, Lack of drama and Digital media.

The inverted pyramid style, which features the most significant information at the top and the least important at the bottom, is widely used in journalism. However, some individuals object to this style, claiming that it has lost its usefulness for various reasons, including:

Increased reader sophistication: According to some, the pyramid style is unsuitable for a more educated readership. They argue that the inverted pyramid's oversimplification of facts does not meet modern reader expectations.

Lack of drama: Because the inverted pyramid's central event is displayed at the beginning, the story can lose its drama as it unfolds. They also argue that a traditional storytelling approach is better suited for dramatic stories.

Digital media: In recent years, digital media has altered the way news is delivered and consumed. With the advent of click-bait articles and scrollable pages, the inverted pyramid is deemed less effective for digital media platforms. Instead, writers must adapt to the requirements of online audiences and deliver compelling and concise material to grab their attention. Overall, the pyramid-style may still be appropriate for certain articles. However, due to an increasing readership, a focus on storytelling, and changes in digital media, the traditional approach is losing its effectiveness.

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To determine the magnitude and direction of the magnetic field produced by a current-carrying wire in Investigation 1, you can use Ampère's Law and the right-hand rule. Ampère's Law relates the magnetic field around a closed loop to the electric current passing through that loop.

In the case of a straight wire, the magnetic field forms concentric circles around the wire, with the field's strength decreasing as you move farther from the wire.

To calculate the magnitude of the magnetic field, you can use the formula B = (μ₀ * I) / (2 * π * r), where B represents the magnetic field strength, μ₀ is the permeability of free space (4π x 10⁻⁷ Tm/A), I is the current through the wire, and r is the distance from the wire to the point where the magnetic field is being measured.

For determining the direction of the magnetic field, you can use the right-hand rule. If you point your thumb in the direction of the current and curl your fingers, your fingers will wrap around the wire in the direction of the magnetic field. This means that if the current flows upward, the magnetic field will rotate clockwise around the wire when viewed from above.

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The mass defect of Fe -56 atom with a mass of 55.921 amu and having 26 protons and 30 neutrons is  0.52823 amu.

Mass defect is the difference in the original mass of the atom from the mass added by the mass of protons and neutrons. Let Mp be the mass of protons and Mn that of neutrons and mass of electrons is negligible.

mass defect Δ M = [Z Mp + (A-Z) Mn )] - Matom

Given mass of protons Mp = 1.00728 amu

Mn = 1.008665 amu.

Number of protons = 26 and neutrons = 30

Then, Δ M = [(26 ×1.00728 amu) + (30 ×1.008665 amu )] - 55.921 amu

                 =  0.52823 amu.

Hence, the mass defect of Fe- 56 is  0.52823 amu.

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The force of gravity depends on the mass of objects and the distance between them. This is true statement.

Physics defines force as the push or pull that modifies the velocity of a massed object.

The ability to change a body's resting or moving condition is referred to as an external force. There is a magnitude and a direction to it.

You may determine the Force using a spring balance. The SI's measure of force is the Newton.

The force of gravity between two objects is directly proportional to the mass of the object and inversely proportional to the square of the distance between them.

Hence, the force of gravity depends on the mass of objects and the distance between them. This is true statement.

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The line of action is a line that extends through the length of a force vector. It represents the direction in which a force is applied.

To understand the line of action, let's take an example. Imagine a person pushing a box with a force of 50 Newtons. The line of action in this case would be a straight line that goes from the point where the person is applying the force through the length of the force vector, in the direction of the push.

In simpler terms, the line of action is like an imaginary path along which the force is being applied. It helps us understand the direction and orientation of the force vector.

In conclusion, the line of action is the line that extends through the length of a force vector, indicating the direction in which the force is being applied.

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Answer:

Explanation:

The term that explains why a book in the seat of a car slides forward when the car slams on the brakes is inertia.

Inertia is the tendency of an object to resist changes in its state of motion. According to Newton's First Law of Motion, an object at rest will stay at rest, and an object in motion will continue moving at a constant speed in a straight line, unless acted upon by an external force.

In the scenario described, when the car slams on the brakes, the car experiences a sudden deceleration or change in motion. However, due to the inertia of the book, it wants to continue moving forward at the same speed as the car before the brakes were applied.

As a result, the book continues to move forward while the car slows down, causing it to slide forward on the seat. This is because there is no force acting specifically on the book to stop its forward motion. The seatbelt or other frictional forces may eventually bring the book to a stop, but initially, the book continues moving forward due to its inertia.

The same principle of inertia explains why passengers in a car also tend to move forward when the car suddenly stops. Without the use of seatbelts or other restraining mechanisms, their bodies continue to move forward in accordance with Newton's First Law until acted upon by an external force, such as the seatbelt or the dashboard.

Explanation:

weight of the piano = mg

w = 99 x 10 =990 N

Answer:

Electrical energy

Explanation:

Hope It helps you

Answer:

The coefficient of kinetic friction is .0204081633 and the firction acting upon the object is 1 N

Explanation:

To figure this out I started off with Newton's Second Law F= ma.

(11-x)=5*2.     *x is the amount of force that kinetic friction applies on the object

x=1 N

Since F=1  and Friction=Normal-Force*Coifficient-Of-Friction

1=5g(mu)

mu=.0204081633

Hope this helps

Venn diagram B is correct. A Venn diagram is a type of graph that uses circles to depict connections between objects or fixed groups of entities.

A Venn diagram is a diagram that uses circles to depict relationships between objects or finite groups of objects. Circles that overlap share characteristics, whereas circles that do not overlap do not.

A Venn diagram with two intersecting circles. the circle on the left is labeled transverse waves with entries light, can travel through a vacuum, vibrating string and medium motion is perpendicular.

The circle on the right is labeled longitudinal waves with entries medium motion is parallel, has regions of high and low density, sound and travel faster in a denser medium.

The overlapping region has entries, created by a disturbance, has speed, and travels through solids.

Hence Venn diagram B is correct

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Answer:

Kinetic Energy

Explanation: