Which of the following situations would cause the greatest increase in the motion of molecules in a system?

Answer:

C) only part of the bandwidth of the AM signal is amplified, causing some of the sideband information to be lost and distortion results.

Explanation:

Selectivity is the ability of a receiver to respond only to a specific signal on a wanted frequency and reject other signals nearby in frequency.

If a receiver is overly selective, only part of the bandwidth of the AM signal is amplified, causing some of the sideband information to be lost and distortion results. Whereas, if a receiver is underselective, the receiver can pick different signals on different frequencies at the same time.

Explanation:

Coil of wire called an winding.

Answer:

Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

North and south magnetic poles are similar to + and - electric charges in that they always come in pairs. This is due to the fact that magnetic fields are always produced by a north and south pole pair. Just like how an electric field is always created by a positive and negative charge pair.

Furthermore, just like how electric charges can be found isolated (such as a single electron), magnetic poles can also be found isolated. However, isolated magnetic poles, or monopoles, have not been observed in nature. This is in contrast to electric charges, which can be found isolated in various forms such as protons and electrons.

It is important to note that the concept of magnetic monopoles is still a topic of research and theoretical discussions in physics. But currently, there is no known evidence of their existence in nature.

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Answer:

The distance of one lap on this track from the start line to the finish line is 400 meters. Two laps around the track is 800 meters, half a lap is 200 meters, and so on.

    Remember, displacement is the direction from the starting point and the length of a straight line from the starting point to the ending point. If a runner was going to run 400 meters (one lap around the track), they would start and stop at the same place on the track. Therefore, their displacement would be 0.

Explanation:

hope this helped

Answer:

\(\boxed {\boxed {\sf Gabi \ had \ greater \ displacement}}\)

Explanation:

Displacement is the change in the position of an object.

Abigail runs a complete lap around the track, which is 400 meters. Even though she ran 400 meters, she has no displacement. If she starts and ends at the same spot, there is no change in position.

Gabi runs a 50 meter dash in a straight line. Gabi has 50 meters of displacement. She runs in a straight line and is 50 meters away from where she began.

While Abigail ran the farther distance, Gabi had the greater displacement.

Answer:

a. T₂ = 60 N

b. W = 25.98 N

Explanation:

a.

Taking right side as positive x direction, the equation for sum of forces in x-direction can be written as follows:

\(T_{2}Sin\ 30^o - T_{1} = 0\\T_{2}Sin\ 30^o = T_{1}\\T_{1} = (T_{2})(Sin\ 30^o)\\where,\\T_{2} = 30\ N\\Therefore,\\T_{1} = (30\ N)(Sin\ 30^o)\\\)

T₁ = 15 N

b.

Taking upward direction as positive y direction, the equation for sum of forces in y-direction can be written as follows:

\(T_{2}Cos\ 30^o - W = 0\\T_{2}Cos\ 30^o = W\\W = (30\ N)Cos\ 30^o\\\)

W = 25.98 N

The work done by the person is -1905.15 J.

Work is defined in a way that takes into account both the forces applied to the body and the total displacement of the body. A constant force F comes before this block. This force's objective is to move the body a specified amount (d) of distance in a straight line in the force's direction.

F = \(\mu_{k}\)N

N = mgcos(25°)

So, the work done by force of friction is given as

W= f· BC cos (180°)

= - \(\mu_{k}\) mg cos(25°) ×BC

= -0.65 ×(100+10)9.8 ×cos(25°) ×3

= -1905.15 J

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A vector is a physical quantity that has both magnitude and direction. It is represented by an arrow with the length proportional to its magnitude and points in the direction of its action.

A scalar, on the other hand, is a quantity that has only magnitude and no direction. Examples of scalar quantities are temperature, speed, mass, and distance. Vector quantities are used to describe motion, force, velocity, and acceleration, while scalar quantities are used to describe only the magnitude or size of the physical quantity.

The component form of a vector is a way of representing a vector as the sum of its horizontal and vertical components. For example, if vector A has a magnitude of 4 and points 30° above the horizontal axis, its component form would be (4cos(30°),  4sin(30°)) or (3.46, 2).
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The mousetrap model demonstrates a chain reaction, similar to fission, where the release of energy from one reaction triggers subsequent reactions.

In the mousetrap model, the initial trigger sets off a chain reaction where each reaction leads to multiple subsequent reactions. Similarly, in nuclear fission, the release of energy from one nucleus splitting triggers the splitting of neighboring nuclei, resulting in a self-sustaining chain reaction.

While the specific mechanisms and energy scales differ, the concept of a chain reaction in the mousetrap model provides a simplified analogy for understanding the basic principle of energy release and propagation in fission reactions.

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True, it is possible for a fault to have a north-south (N-S) strike and an eastward dip.

Faults can have various orientations and dips depending on the tectonic forces and geological conditions in a particular region. The strike refers to the direction of the fault line on the Earth's surface, while the dip indicates the angle at which the fault plane is inclined from the horizontal. Therefore, a fault can have any combination of strike and dip, including an N-S strike and an eastward dip.

Faults are geological fractures where movement has occurred, and their orientations can vary. A fault with a north-south (N-S) strike means it extends in that direction horizontally. The dip refers to the angle of the fault plane from the horizontal. So, it is possible for a fault to have an N-S strike and an eastward dip.

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Explanation:

It"s B i think i've might be wrong??

Answer:

3433.4m

Explanation:

Volume_submerged = (Density_mantle / Density_mountain) * Volume_exposed

Volume_submerged_meters = Volume_submerged / 1000000

Weight_submerged = Density_mantle * Volume_submerged_meters * g

Weight_submerged = Weight_exposed

Density_mantle * Volume_submerged_meters * g = Density_mountain * Volume_exposed * g

Volume_submerged_meters = (Density_mountain / Density_mantle) * Volume_exposed

Volume_submerged_meters = (3.2 g/cm^3 / 4.1 g/cm^3) * 4400 meters

Volume_submerged_meters = (0.7805) * 4400 meters

Therefore, the total height of the mountain is 3433.4 meters.

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Answer:

Exothermic processes release energy upon completion

Explanation:

Endothermic processes require an input of energy to proceed and are signified by a positive change in enthalpy.

Answer:

It is (A) Calculate the force needed to stop the vehicle.

Explanation:

Answer:

“The only true wisdom is in knowing you know nothing.” ― Socrates. Socrates had it right. Remain humble and appreciate the fact that you don't know everything. ... Thankfully, one's search for knowledge has no end as there is always something new to learn, giving one's life meaning and purpose.

Explanation:

Answer:

knowing wisdom cool

Explanation:

lol

Answer:

Nucleus, cell membrane, cytoplasm and mitochondria

Explanation: They both have these 4 components, which is what they have in common.

Acceleration can be determined by Newtons second law

\(\\ \rm\rightarrowtail F=ma\)

Where

A&L Engineering, as an engineer, you've been tasked with evaluating the durability of three common materials used in the design of cell phone cases.

These materials include:Carbon FiberPolycarbonateTPUExplanation:Carbon fiber is a lightweight, durable, and corrosion-resistant composite material. It is often used in the aerospace, automotive, and sporting goods industries.Polycarbonate is a thermoplastic polymer that is strong, shatter-resistant, and lightweight. It is often used in the production of CDs, DVDs, and eyeglass lenses.

TPU (thermoplastic polyurethane) is a flexible, soft material that is abrasion-resistant and provides excellent impact protection. It is often used in the production of phone cases, as well as sporting equipment and medical devices.To evaluate the durability of these materials, you can conduct a series of tests to measure their resistance to impacts, scratches, and bending.

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Answer:

The correct option is;

A.

Explanation:

The speed of sound varies with the medium within which the sound propagates. Therefore, the wavelength of the sound wave changes as it moves from one medium to another

The speed of sound in liquid which is given by the square root of the ratio of the bulk modulus (compression resistance) to the density of the liquid is generally faster than in gas, therefore, given that the frequency of the sound source in constant, the wavelength, λ, given as λ = v/f, which is therefore, directly proportional to the speed of sound, also reduces, which is represented by a reduced distance between successive crest as seen in figure A.

Answer:

system

Explanation:

they are all put together as one, and they are a group

Answer:

The hunter should aim directly at the perched monkey because the tranquilizer dart will fall away from the line sight at the same rate that the monkey falls from its perch.

Tan theta = 9 / 90 = .1      so theta = 5.71 deg

The time for the monkey to reach the ground is

t = (2 h / g)^1/2 = (18 / 9.8)^1/2 = 1.36 sec

So the horizontal speed of the dart must be at least

Vx = 90 m / 1.36 sec = 66.4 m/s

Vx = V cos theta

V = 66.4 m/s / cos 5.71 = 66.7 m/s

The angle of projection of the tranquilizer dart is 5.7⁰

The horizontal speed of the tranquilizer dart is 66.5 m/s

The given parameters;

The angle of projection of the tranquilizer dart is calculated as;

\(tan(\theta) = \frac{y}{x} \\\\tan(\theta) = \frac{9}{90} \\\\tan(\theta) = 0.1\\\\\theta = tan^{-1}(0.1)\\\\\theta = 5.71 ^0\)

The speed of the tranquilizer dart is calculated as;

X = v₀ₓt

where;

t is the time to reach maximum height

X is the horizontal displacement = 90 m

The time to reach maximum height is calculated as;

\(h = v_0_yt + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2\times 9}{9.8} } \\\\t = 1.36 \ s\)

The horizontal speed of the tranquilizer dart is calculated as;

\(X = v_0cos(\theta) \times t\\\\90 = v_0\times cos(5.71) \times 1.36\\\\90 = 1.353 v_0\\\\v_0= \frac{90}{1.353} \\\\v_0 = 66.5 \ m/s\)

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an arrow

Explanation:

momentum is a vector quantity it has both magnitude and direction.

a vector diagram can be used to represent this principle of momentum conservation such as diagram uses an arrow to represent the magnitude and direction of the momentum vector for the individual objects before the collision and combined after the collision

The best representation of momentum vector is ; ( 4 )  An arrow

A momentum is a vector quantity with both magnitude and direction and it  simply represents  a mass ( object ) in motion. momentum is calculated as ;

P = mV .  where m = mass of object , v = velocity of object .

An arrow is a good representation of momentum vector because it has both mass and velocity when fired from bow.

Hence we can conclude that the best representation of momentum vector is an arrow.

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Answer:

15 is it

Explanation:

Answer:

The answer would be 0.23

Explanation:

Put in 0.23

Answer:

5 cm

Explanation:

There is direct relationship between harmonics and resonance frequency.

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116 N

The initial  potential energy of the child is given by:

\(U_{i} =mgh\)

\(U_{i} =31\)×\(9.8\)×3 = 911.4 J

There is no change in kinetic energy since the child is sliding down at a steady speed (because the speed remains constant). When the child reaches the bottom of the slide, the height is h=0 and the gravitational potential energy is \(U_{f}\)=0, hence there is a change in the gravitational potential energy. Consequently, the energy variation is

Δ\(E\)=ΔU= 0-911.4 = -911.4J

So, there have been a loss of energy. This energy loss is equal to the work done by the friction, which is given by:

W=-Fd

where F is the magnitude of the force of friction, d=7.8 m is the length of the slide ,the negative sign is due to the fact that the friction is opposite to the motion of the child

On Substituting, we get

-911.4=-Fd

∴F= \(\frac{911.4}{7.8}\)

F=116N

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The frequency of the electromagnetic wave is equal to 7.09× 10⁸ m.

The frequency of an electromagnetic wave can be defined as the number of oscillations of a wave in one second. The frequency has S.I. units per second or hertz.

The relationship between wavelength (λ), frequency of the wave(ν), and speed of light (c) is:

c = νλ

Given, the frequency of the sound wave, ν = 3500 Hz

The speed of the sound wave in water, V = 1480 m/s

The wavelength of the sound waves can determine from the above-mentioned relationship:

λ = V/ν = 1480/3500 = 0.423 m

The wavelength of electromagnetic wave, λ = 0.423 m

The speed of the electromagnetic wave, c = 3 × 10⁸ m/s

The frequency of the electromagnetic wave will be equal to:

ν = c/λ = 3×10⁸/0.423 = 7.09 × 10⁸ m.

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Answer: I did these exercises outdoors. The weather was hot and humid, so I drank about two cups of water during the workout. I also drank a cup of water about an hour before I started. Yes, the weather most definitely affected how much I drank.

Explanation: Edmentum

The mass of the car, according to the inquiry, is 897.6 kg.

Mass is the measure of the amount of matter in an object. It is measured in kilograms (kg) in the International System of Units (SI), or in pounds (lb) or ounces (oz) in the imperial and US customary systems. Mass can also be measured using density, which is the ratio of mass to volume.

The kinetic and potential energies of the car can be added to get its total mechanical energy, which is 920,500 J. We know the height of the slope (1.2 m), the speed of the car (18 m/s), and that it is flying over the hill.

K = 0.5 x m x (18 m/s)²

U = m x 9.8 m/s² x 1.2 m

0.5 x m x (18 m/s)² = 920,500 J

m x 9.8 m/s² x 1.2 m = 920,500 J

Solving these two equations, we get m = 897.6 kg.

Therefore, the mass of the car is 897.6 kg.

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