A force acting at the interface of surfaces in contact in the direction opposite the direction of motion or impending motion is referred to as ______.

The final velocity in an amusement park ride, a 400-kg suspended car starts from rest at ground level (a) and is accelerated across a level section is 31.3 m/s.

In an amusement park ride, a 400-kg suspended car starts from rest at ground level (a) and is accelerated across a level section.

The initial velocity is zero, and the final velocity can be calculated using the acceleration and distance traveled.The formula for calculating the final velocity is given below:

vf² = vi² + 2ad where

vf = final velocity

vi = initial velocity

a = acceleration

d = distance traveled

Substitute the given values into the formula and calculate the final velocity:

vf² = 0 + 2 × 9.8 m/s² × 50 m = 980 m²/s²vf = √980 m²/s² = 31.3 m/s.

Therefore, the final velocity of the suspended car is 31.3 m/s.

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Waves share common characteristics such as wave motion, amplitude, wavelength, frequency, wave speed, and interactions with boundaries. These properties are fundamental to understanding the behavior and properties of various types of waves, including sound waves, electromagnetic waves, water waves, and seismic waves.

A characteristic of all waves is their ability to transfer energy without transferring matter. This fundamental property distinguishes waves from other forms of energy transfer, such as the movement of objects in a solid or the flow of fluids. Waves propagate through various mediums or through empty space, carrying energy from one location to another.

Waves exhibit several common characteristics, including:

1. Wave Motion: Waves involve the transfer of energy through periodic oscillations or vibrations. The particles or fields involved in the wave motion move back and forth around their equilibrium positions, transmitting the energy along the wave path.

2. Amplitude: The amplitude of a wave represents the maximum displacement or disturbance from the equilibrium position. It corresponds to the intensity or strength of the wave and can be measured as the maximum height, displacement, or value of a wave.

3. Wavelength: The wavelength of a wave is the distance between two consecutive points with the same phase or the distance covered by one complete cycle of the wave. It is commonly represented by the symbol λ and is usually measured in meters or other appropriate units.

4. Frequency: The frequency of a wave refers to the number of complete oscillations or cycles that occur per unit of time. It is denoted by the symbol f and is measured in hertz (Hz). The frequency and wavelength of a wave are inversely related and are related to the speed of the wave through the equation v = fλ, where v represents the wave velocity.

5. Wave Speed: The wave speed represents the rate at which a wave travels through a medium or through empty space. It is the product of the wavelength and the frequency of the wave and is usually denoted by the symbol v. The speed of a wave depends on the properties of the medium through which it travels.

6. Reflection, Refraction, and Diffraction: Waves can undergo interactions with boundaries or obstacles, resulting in phenomena such as reflection (bouncing off a surface), refraction (bending when passing through different mediums), and diffraction (spreading out or bending around obstacles).

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When starting a single-speed bicycle, you have to push harder on the pedals to overcome the initial inertia and get the bike moving from a stationary position.

When starting a single-speed bicycle, you have to push harder is because the bike has to overcome the force of friction between the tires and the ground, as well as any other resistive forces like air resistance or the weight of the bike and rider.

Once the bike is in motion, however, it requires less force to maintain a constant velocity because the bike has already overcome the initial inertia and has momentum working in its favor. As long as the resistive forces like air resistance and friction are not too strong, the bike can continue to move at a constant velocity with relatively little effort from the rider.

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The ASC PPS conversion factor is different from the OPPS conversion factor because of the following reason:

The OPPS conversion factor is applied to each APC to determine payment rates for outpatient services. Furthermore, Palliative care is specialized medical care that aims to improve the quality of life for individuals with serious illnesses. It is focused on relieving symptoms and stress associated with serious illnesses. The goal of palliative care is to help patients feel more comfortable and enhance their quality of life. Palliative care is not the same as hospice care because it is given to patients at any stage of an illness, and it may be provided alongside curative treatments.

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Answer:

 α= 1.3 10-5 ºC⁻¹

Explanation:

La dilatación termica de los cuerpos esta dada por la relación  

      ΔL = L₀ α ( T -T₀)

en este caso nos piden el coeficiente de dilatación térmica

     α =DL/L₀ DT

calculemos

      α = (  100,13 -100)/[100 (100 – 0)]

       α = 1,3 10-5 ºC⁻¹

Traduction

The thermal expansion of bodies is given by the relationship

       ΔL = L₀ α (T -T₀)

in this case they ask us for the coefficient of thermal expansion

        α = ΔL / L₀ ΔT

    let's calculate

        α = (100,13 -100) / [100 (100 - 0)]

        α= 1.3 10-5 ºC⁻¹

when light passes through an ordinary window pane, its angle of emergence is the same as its angle of incidence light refracts when traveling from air into glass because light travels slower in glass then in air

Light speeds up and changes direction when it passes through water or glass at an angle and enters the atmosphere. Turning away from the usual line, the light. Imagine a tractor transitioning from a slow-moving, muddy, grassy area to a quick-moving road.

Light refracts while passing from air into glass because light travels more slowly in glass than it does in air. When light passes through a typical window pane, its angle of emergence and angle of incidence are the same.

When light travels from the less dense air into the denser glass or water, what actually happens is that it slows down. The light ray also changes direction as a result of this slowing down. Refraction is brought on by a change in the speed of the light.

Therefore, When light rays bounce off a surface, transition from one transparent medium to another, or proceed through a medium whose composition is constantly changing, they change direction.

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With more than six million books in its collection and 19 million people living in the Greater Los Angeles Area, the system serves the biggest population of any public library system in the country.

The structure has eight stores with a total area of 538,000 square feet, approximately 89 miles of shelves, and more than 1,400 seats. There are 255 public computers with free access scattered around the building and the Computer Center. Wi-fi enables access to the internet as well.

The largest and most varied population in the country is served by the Los Angeles Public Library. There are four million people living within the library's huge 468 square mile service area, who speak more than 220 different languages.

Residents of 49 of the 88 incorporated cities in Los Angeles County, California, are served by LA County Library, one of the country's biggest public library systems.

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Answer:

232 N

Explanation:

By Hooke's law, the force applied to a spring is proportional to the stretch of the spring, so

F = kx

Where F is the force, k is the spring constant and x is how much it is stretched.

So, replacing k by 58N/cm and x by 4 cm, we get

F = (58 N/cm)(4 cm)

F = 232 N

Therefore, the force applied is 232 N

Explanation:

Momentum of an object is defined as the product of the mass of object and the velocity with which it is moving.

p = mv

where, p = momentum, m= mass and v= velocity

mass m = 0.7 Kg and v = 20 m/s

p = 0.7×20 = 14 Kg-m/sec

Therefore, momentum of the object  = 14 kg-m

Answer:

The millions place.

Explanation:

Explanation:

A micrometer is a measuring device or an instrument which is used to measure very minute measurements very accurately and precisely. It is mathematical tool used to provide accurate measurement for any mechanical components.

Now, if the micrometer that I have found is badly bent, it would provide faulty or wrong measurements both in terms of  precision and accuracy when compared to a high quality meter stick.

Answer:

Teniendo dos tuberías, una hueca y otra sólida, con la misma masa, radio y longitud, ambas poseen la misma rapidez angular, entonces el cuerpo hueco tendrá mayor energía cinética rotacional que la tubería sólida, esto es debido a que el tubo hueco tiene mayor inercia rotacional.

La ecuación de energía rotacional viene dada como:

Er = (1/2)·I·ω

De esta manera tenemos que el tubo hueco tiene mayor inercia rotacional que el tubo sólido, por ende, mayor energía.

Explanation:

Answer:

On the back of the spacesuit is a backpack called the Primary Life Support Subsystem. This backpack contains the oxygen that astronauts breathe during a spacewalk. It removes carbon dioxide that astronauts exhale. The backpack also provides electricity for the suit.

Explanation:

got a 100%.

brainliest, please?

According to Kirchhoff's Laws, if ammeters and voltmeters are not to significantly alter the quantities they are measuring, the resistance of an ammeter should be much lower, and the resistance of a voltmeter should be much higher than those of the circuit being measured. Option b is correct.

This is because the electrical resistance of an instrument should be less than the electrical resistance of the circuit element being measured so that the instrument does not disturb the circuit. Kirchhoff's Laws are a set of fundamental principles that govern electrical circuits. They were first described by German physicist Gustav Kirchhoff in 1845. The first of these laws states that the sum of the currents entering any junction in a circuit must be equal to the sum of the currents leaving that junction.

The second of Kirchhoff's Laws states that in any closed loop of a circuit, the sum of the voltage sources must be equal to the sum of the voltage drops. The resistances of the ammeter and voltmeter should be as small as possible to avoid altering the electrical characteristics of the circuit being measured. An ammeter is a measuring device used to measure the electrical current flowing through a circuit, whereas a voltmeter is used to measure the electrical potential difference between two points in a circuit.

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Given,

The mass of the box, m=35.0 kg

The height to which the box was lifted, h=1.75 m

Potential energy is the energy possessed by an object due to its position.

The gravitational potential energy gained by the box is,

Where g is the acceleration due to gravity.

On substituting the known values,

Thus the gravitational potential energy gained by the box is 600.25 J

Use the work-energy theorem to find the final speed of the 12-pack if the coefficient of kinetic friction between the 12-pack and the floor is 0.30.

According to work energy theorem states that the net work done on an object is equal to its change in kinetic energy and mathematically it can be written as

\(W_{net}\) = ΔK
Where \(W_{net}\)   is the net work done on the object, and ΔK is the change in its kinetic energy.
The only force acting on the 12-pack is the force of kinetic friction, which opposes its motion. Therefore, the net work done on the 12-pack can be expressed as
\(W_{net} = f_{k}.d\)
Where \(f_{k}\) is the force of kinetic friction, and d is the distance over which the force acts.
The force of kinetic friction can be written as
\(f_{k}= u_{k}.N\)
Where \(u_{k}\) is the coefficient of kinetic friction, and N is the normal force acting on the 12-pack, which is equal to its weight, given by
N = m * g

Where m is the mass of the 12-pack, and g is the acceleration due to gravity.

The change in kinetic energy of the 12-pack can be expressed as

ΔK = \(k_{f} - k{i}\)
Since we assumed that the 12-pack is initially at rest, \(k_{i} = 0\)
By putting the value we get
ΔK = \(k_{f}\)

ΔK = 1/2(m * \(v_{f}^{2}\) )
Where \(v_{f}\) is the final velocity of the 12-pack.

By substituting the value for ΔK , \(f_{k}\) and N we get
\(u_{k}*m*g*d = 1/2(m * v_{f}^2)\)
By simplifying
\(v_{f} = \sqrt{2*u_{k}*g*d}\)
By putting the given value \(u_{k} = 0.30\) and g = 9.81 m/\(s^{2}\)
We get
\(v_{f} = \sqrt{2* 0.30*9.81*d}\)

Since the question does not give a distance over which the force act so  we cannot not determine the final speed of the 12-pack

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Answer:

The displacement is about 4.47 miles

Explanation:

Displacement

Is the vector that represents the difference in positions that an object has moved on.

If the object was at position \(\vec p_1\) and ended up in the position \(\vec p_2\), then the displacement is:

\(\vec d=\vec p_2- \vec p_1\)

The magnitude of d is the length of the vector. Given its rectangular coordinates (dx,dy), then the magnitude is:

\(\mid d\mid=\sqrt{dx^2+dy^2}\)

If you walk 2 miles east from the origin, your new position is (2,0). When you now walk 4 miles north, your final position is (2,4).

The displacement is:

\(\vec d=(2,4)-(0,0)=(2,4)\)

And its magnitude is:

\(\mid d\mid=\sqrt{2^2+4^2}\)

\(\mid d\mid=\sqrt{4+16}\)

\(\mid d\mid=\sqrt{20}\)

\(\mid d\mid\approx 4.47\ miles\)

The displacement is about 4.47 miles

Answer:

yes

Explanation:

because once tje the cubes melt they will add water

Answer:

No

Explanation:

The water level remains the same when the ice cube melts. A floating object displaces an amount of water equal to its own weight. Since water expands when it freezes, one ounce of frozen water has a larger volume than one ounce of liquid water.

The power factor of zero leading in a circuit that is entirely capacitive, with the current 90 degrees ahead of the voltage.

An electric circuit's power source exerts pressure known as voltage on charged electrons (current), causing them to flow through a conducting loop and perform tasks like lighting a lamp. Voltage is measured by volts and is simply equal to pressure (V).

Voltage, commonly referred to as electromotive force, is merely the amount of energy contained in one charge. The difference of electric voltage between two places is what is referred to as voltage, in other words. Simple electric charge flow rate is known as current.

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Answer:

They are buried in the ground due to weathering and erosion

Explanation:

Answer:

They are buried in the ground due to weathering and erosion.

Answer:

Answers below--

Explanation:

1. F/Force

2.H/Contact force

3.A/Non-contact force

4.C/electric force

5.D/gravity

6.I(i)/magnetic force

7.J/kilogram

8.G/newton

9.B/friction

10.E/lubricant

in y axis the the mass again come to a stop.

mass is a very large amount od number or something.

Will be n, - l, cos of theta applying the derivation of energy, hello, ikinetic, energy potential energy as

t kinetic energy potential energy, kinetic energy will be half m square potential. Energy kinetic energy at 0, and it is m g h, so velocity at will get root. 2 g h and b have calculated so 2 g l, 1 minus cos of theta sufficient of force along y axis must be 0, so t minus mg equal to m b square by l, so t will be m into g plus 2 g l substituting the Value of veracity, here 1 minus cos theta upon l. So finally, it could be written as n j into 3 minus 2 cos. Cetothis is the answer of part. A now part b with the decrease flit tension will remain constant because it is not depending on length of stringks for watching.

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What is permeability? b. pore spaces that are interconnected to allow the movement of air or water. Permeability is a measure of the ability of a material to allow the flow of fluids through it.

It is a measure of the interconnectedness of the pore spaces in a material. Materials with high permeability allow fluids to flow through them more easily than materials with low permeability.

What is the capillary fringe? b. material above the water table that is moistened by the rise of capillary water against gravity. The capillary fringe is the zone of soil or rock that is saturated with water due to capillary action.

Capillary action is the ability of water to move upwards against gravity through the narrow spaces between soil particles. The capillary fringe is typically a few centimeters thick, but it can be thicker in some soils.

Permeability is a measure of the ability of a material to allow the flow of fluids through it.

The capillary fringe is the zone of soil or rock that is saturated with water due to capillary action.

Permeability is important in a variety of applications, including groundwater recharge, well design, and the construction of dams and levees. The capillary fringe is important for plant growth, as it provides water to plants that are not located directly above the water table.

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The average current density in the wire is approximately 763,358 A/m².

The average current density (J_avg) in a wire can be calculated by dividing the total current (I) by the cross-sectional area (A) of the wire.

Current (I) = 2.4 A

Diameter of the wire (d) = 2.0 mm

To find the cross-sectional area of the wire, we need to first calculate the radius (r) using the diameter:

Radius (r) = d/2 = 2.0 mm / 2 = 1.0 mm = 0.001 m

Now, we can calculate the cross-sectional area of the wire using the formula for the area of a circle:

A = π * r^2

A = π * (0.001 m)^2

A ≈ 3.14 * 0.000001 m²

A ≈ 3.14 * 10^(-6) m²

Finally, we can calculate the average current density:

J_avg = I / A

J_avg = 2.4 A / (3.14 * 10^(-6) m²)

Calculating the result:

J_avg ≈ 763,358 A/m²

Therefore, the average current density in the wire is about 763,358 A/m².

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It is incorrect to say that matter contains heat because heat is a flow of energy not an state function.

Matter is anything that occupies space and have mass, having mass means that it contains energy in itself, this energy is called internal energy.

This internal energy is different from the heat energy, the heat energy is completely different from any of the form of energy.

The heat energy flows continuously, it cannot be contains in any matter, when there is more heat the temperature goes up and when there is low heat, the temperature goes down. It is not a function related to the state the matter. This is why it is incorrect to say that the heat is contained by matter.

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The wavelength of the light being released appears to be longer as you get closer to a steady light source.

Its spatial period is known as the wavelength, which in physics is the distance that a periodic wave repeats over. The distance between two consecutive wave crests or troughs is known as the wavelength. The direction of the wave is used to measure it. It is frequently denoted by the Greek letter lambda, which is also known as the "wavelength." Additionally, sinusoidal wave envelopes, modulated waves, and waves created by the interference of multiple sinusoids are all sometimes referred to as having a wavelength.

The distance between each trough or the peak of each wave in a sequence. It acts as one of the "yardsticks" for estimating radiation levels.

Typically, the length of a wave is denoted by the Greek letter lambda (). The relationship between a waves train's frequency (f) or speed (v) in a medium is known as the wavelength relationship.

The wavelength may always be determined by measuring that distance between the two identical points on adjacent waves. The separation between each compression or rarefaction is measured in order to determine a longitudinal wave's wavelength.

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Answer:

A model is a simplified version of a system

Explanation:

A model is the representation of a real object, or natural phenomenon that aims to show the real object or phenomenon looks like and the manner of operation, or how the a system or phenomenon works. A model can thus be used for testing and or research

The model of a real life object is generally smaller than the object and it is assumed that within given correctional factors, the property of a model and the real object are identical in the same environmental conditions.

The youngster has a momentum of 327.2 kg/m/s.

A Ferris wheel is a form of amusement ride that consists of an upright rotating wheel with several passenger-carrying components, often known as a large wheel in the UK attached to the rim so that they rotate with the wheel. These components are also known as passenger cars, cabins, tubs, capsules, gondolas, or pods.

ω = Δθ / Δt

where t is the time interval and is the angle change. Since the Ferris wheel makes one complete revolution in 20 seconds, we have:

ω = (2π rad) / 20 s

ω = 0.3142 rad/s

At the instant shown in the diagram, the child is moving horizontally with a speed of 8.2 m/s. Since the child is at a distance of 26 meters from the center of the axle, the child's linear velocity can be calculated as:

v = ω * r

Substituting the given values, we get:

v = 0.3142 rad/s * 26 m

v = 8.18 m/s

The momentum of the child can now be calculated as:

p = m * v

where m is the mass of the child. Substituting the given value, we get:

p = 40 kg * 8.18 m/s

p = 327.2 kg·m/s

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We will determine the current as follows:

First, we remember that:

So:

So, the current is 3 Amps.