when a digital fluoroscopy unit's magnification button is used, the resulting magnification is due to a decrease in the size of the: input phosphor. output phosphor. photocathode. focusing lenses.

Answer:

I think Fgrav=mg

Explanation:

The magnitude of the force acting on the roller coaster car (or passenger) can be calculated using the formula FGRAV=m.g, where the acceleration due to gravity is represented by g (where g=9.8 m/s2).

The magnitude of the normal force depends on three factors—

0.12kg of mass, must be added to the object to change the period to 1.8 s.

The period is the amount of time needed for a simple pendulum to swing back and forth (backwards). Seconds (s) are the SI unit of time. A simple pendulum completes one cycle when it swings back and forth.

The amount of matter in a particle or object is represented by its mass, a dimensionless quantity. In the International System, the kilogram serves as the primary unit of mass.

Calculations:

Given

mass suspended from string M = 0.46kg

Oscillating time T = 1.6sec

To find (M') Mass added to change oscillating time to T' = 1.8sec

we know that:

T = 2π/ω

ω = √ (K/M)

T = 2π √ (K/M)

T = 2π ×  √ (M/K)

1.6 = 2 × 3.14 × √ (0.46) /K

1.6/6.28 = √ (0.46) /K

0.254 = √ (0.46) /K

Sq. In both sides

(0.254) ² = {√ (0.46) /K}²

0.645 = 0.46 /K

K= 7.13N/m

Now, for time T'

T' = 2π ×  √ (M'/K)

1.8 = 2 × 3.14 × √(M' /7.13)

1.8/6.28 = √(M' /7.13)

0.286 = √(M' /7.13)

Sq. In both sides

(0.286)²= √(M' /7.13)²

0.0817 = M' /7.13

M'= 0.0817 × 7.13

M' = 0.58kg

To find the added mass

=M' - M

=(0.58 - 0.46) kg

= 0.12kg.

Hence, 0.12kg of mass, must be added to the object to change the time period to 1.8 s.

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Power is work done by time and rate of doing work the SI unit of power is Watt (W) which is joules per second (J/s).

Sometimes, we want information about how quickly work is done. This is called “power.” The Definition of Power: The rate at which work is done. Power is related to the force or forces that suppy by it.

Mathematically,

The Definition of Power P ≡ dW/dt

The units of power are, 1Joule/1second ≡ 1Watt = 1W. The horsepower is an alternate unit: 1hp=746W.

We weren’t familiar with joules, the unit for work, but you are comfortable with the units of power. For example, a 100W light bulb or a 1200W hair dryer. A 100W bulb uses 100J every second. Similarly, a 1200W hair dryer uses 1200J every second.

The Work-Energy Theorem explains that when net work is done on an object, the object speeds up. The Work-Kinetic Energy Theorem describes what happens when a particular force, such as the one supplied by the catapult, does work to cause only the kinetic energy of the object to change.

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The image's size is 1.2 cm.

Given data:

- [tex]$d_0$[/tex] is the distance of the face from the bottom of the bowl

- [tex]$R=40 \mathrm{~cm}$[/tex] is the radius of curvature of the bowl

-[tex]$h_o=5 \mathrm{~cm}$[/tex] is the height of the nose

What is bottom of the bowl acts as a convex mirror?

The focal length of the convex mirror is given by:

[tex]f=-\frac{R}{2}$$[/tex]

or

[tex]f=-\frac{40 \mathrm{~cm}}{2}$$[/tex]

or

[tex]f=-20 \mathrm{~cm}$$[/tex]

Let, [tex]$d_i$[/tex] be the distance of the image of the nose.

The mirror equation is given by:

[tex]\frac{1}{f}=\frac{1}{d_o}+\frac{1}{d_i}$$[/tex]

we have:

-[tex]$d_o=64 \mathrm{~cm}$[/tex]

- [tex]$f=-20 \mathrm{~cm}$[/tex]

Let, [tex]$d_i$[/tex] be the distance of the image of the nose.

The mirror equation is given by:

[tex]\frac{1}{f}=\frac{1}{d_o}+\frac{1}{d_i}$$[/tex]

we have:

[tex]$\bullet d_o=64 \mathrm{~cm}$[/tex]

- [tex]$f=-20 \mathrm{~cm}$[/tex]

Plugging in the values, we get:

[tex]$$\begin{aligned}& \frac{1}{-20 \mathrm{~cm}}=\frac{1}{64 \mathrm{~cm}}+\frac{1}{d_i} \\& \text { or } \\& \frac{1}{d_i}=-\left(\frac{1}{20 \mathrm{~cm}}+\frac{1}{64 \mathrm{~cm}}\right) \\& \text { or } \\& d_i=-15 \mathrm{~cm}\end{aligned}$$[/tex]

Negative sign indicates that the image is virtual and formed behind the mirror.

Let, [tex]$h_i$[/tex] be the height of the image of the nose.

The magnification formula is given by:

[tex]m=-\frac{d_i}{d_o}=\frac{h_i}{h_o}$$[/tex]

we have

- [tex]$d_o=64 \mathrm{~cm}$[/tex]

- [tex]$d_i=-15 \mathrm{~cm}$[/tex]

- [tex]$h_o=5 \mathrm{~cm}$[/tex]

Plugging in the values, we get:

[tex]$$-\left(\frac{-15 \mathrm{~cm}}{64 \mathrm{~cm}}\right)=\frac{h_i}{5 \mathrm{~cm}}$$[/tex]

or

[tex]$$h_i=\frac{15 \times 5}{64} \mathrm{~cm}$$[/tex]

or

[tex]$$h_i=1.2 \mathrm{~cm}$$[/tex]

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The frequency of its fundamental mode of vibration is 409Hz and the number of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to 1.00x10^4 is 24

Given tension of a steel piano wire (T) = 1070N

Length of wire L = 0.400m

Mass of piano wire M = 4g

We know linear density = mass/length = 4x10-3/0.400 = 0.01 kg/m

fundamental frequency f = 1/2L√T/µ

f = 1/2x0.4x√1070/0.01 = 409Hz

number of loops  is n

n = f'/f = 1x10^4/409 = 24.5 = 24

Hence the frequency of its fundamental mode of vibration is 409Hz and the number of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to 1.00x10^4Hz is 25.

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Potential energy lost by block 2 is greater than the potential energy gained by the spring - is true of the energy of the system during this process

Potential energy is stored energy that is affected by the relative location of various components in a system. Stretching or compressing a spring increases its potential energy. A steel ball has higher potential energy when lifted above ground than when it falls to Earth.

Because every item moved from its resting posture has stored energy, it is referred to as potential energy because it has the ability to accomplish work when released.

Thus, potential energy lost by the block 2 = potential energy gained by the spring + energy lost to overcome the friction.

Thus, Potential energy lost by block 2 is greater than the potential energy gained by the spring .

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The complete question is as follows:

Block 1 and Block 2 In the system of two blocks and a spring shown above, blocks 1 and 2 are connected by a string that passes over a pulley. The initially unstretched spring connects block 1 to a rigid wall. Block 1 is released from rest, initially slides to the right, and is eventually brought to rest by the spring and by friction of the horizontal surface. 24. Which of the following is true of the energy of the system during this process? (A) The total mechanical energy of the system is conserved. (B) The total mechanical energy of the system increases. (C) The energy lost to friction is equal to the gain in the potential energy of the spring, (D) The potential energy lost by block 2 is less in magnitude than the potential energy gained by the spring. (E) The potential energy lost by block 2 is greater in magnitude than the potential energy gained by the spring.

Full range of vertical motion is 4m.

Frequency is 0.6 Hz.

Amplitude is 2m.

What is Oscillation?

Oscillation is the process of any quantity or measure repeatedly varying about its equilibrium value in time. Another definition of oscillation is the periodic variation of a substance between two values or around its core value.

Given,

Amplitude, A = 2m

Time= 6 s

So, the full range of vertical motion is

= 2 × 2= 4m

We know,

Frequency is inversely proportional to time

∴ f = [tex]\frac{1}{T}[/tex] = [tex]\frac{1}{6}[/tex]

= 0.6 Hz

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Construction and demolition waste management planning is not a credit in the LEED v4.1 BD C MR category.

We are confident that the rating system achieves those objectives because this version of LEED is the result of countless hours of work by our volunteers and staff.

The world's standard for measuring the efficiency of green building design, construction, and operation is called LEED. With more than 93,000 projects registered and certified globally and more than 19 billion square feet of space, different LEED versions have steadily advanced the global green building market over the past 18 years.

Regions and markets develop at different rates, and we want to be sure we can meet the needs of every member of the green building community. LEED v4.1 is the culmination of a number of improvements that will raise the bar for our standards, promote leadership, and make our platform more accessible, user-friendly, and most importantly, collaborative than ever.

The platform for LEED v4.1 will be the most open and transparent one yet.

The question is incomplete. the complete question is 'a) construction and demolition waste management planning b) building life cycle impact reduction c) construction and demolition waste management d) building product disclosure and optimization - sourcing of raw materials'

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The amplifier is non-inverting amplifier.

What is amplifier?

A circuit that enlarges a signal is called an amplifier. The idea behind an amplifier is to create an output signal that is a copy of the input signal but with a stronger magnitude.

What is non-inverting amplifier?

An operational amplifier circuit with a non-inverting amplifier has an output voltage that is in phase with the input voltage. The inverting op amp, which generates an output signal that is 180 degrees out of phase, is its complement. Its output and input signal are in phase. It just amplifies the signal without altering its phase. It does not invert the phase of the signal, as its name would imply.

The amplifier is non-inverting amplifier.

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Answer:

add molecules

Explanation:

the spring stiffness of the spring for the safe to be hit will be 353 KN-m

A spring's "spring constant" is a property that quantifies the relationship between the force acting on the spring and the displacement it produces. In other terms, it indicates a spring's stiffness and the amount of stretching or compression it can withstand.

BRIEFING:-

The spring's kinetic energy is equivalent to the work the free-falling safe does on it.

[tex]w_{1}[/tex]= [tex]\frac{1}{2}[/tex]k[tex]x^{2}[/tex]

   The spring's potential energy is equal to the work done on the safety by gravity:

[tex]w_{2}[/tex]= mgh

 = 1200*9.81*(2+0.4)

 = 1200*9.81*2.4

 =28252.8N-m

[tex]w_{1} =w_{2}[/tex]

[tex]\frac{1}{2}[/tex]k[tex]x^{2}[/tex]=mgh

[tex]\frac{1}{2}[/tex]k[tex]0.4^{2}[/tex]=28252.8

k=[tex]\frac{28252*2}{0.4^{2} }[/tex]

k=353150N-m

k=353KN-m

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ω is the same for all satellites.

T = ω2 mL, scaled as the product of m and L

a) milliliters = 800*5000 = 4*10^6

b) milliliters = 100*2500 = 0.25*10^6

c) milliliters = 100*10000 = 1*10^6

d) milliliters = 200*5000 = 1*10^6

e) milliliters = 300*7500 = 2.25*10^6

f) milliliters = 400*2500 = 1*10^6

a, e, c=d=f, b

A satellite or artificial satellite is an object intentionally placed in orbit in space.

Apart from passive satellites, most satellites have power generation systems for onboard equipment such as: B. Solar panels or thermoelectric radioactive isotope generators (RTG). Most satellites also have a way of communicating with ground stations called transponders.

Many satellites use standardized buses to save cost and effort, but the most popular are the smaller CubeSats.

Satellites are launched by rockets from the Earth's surface high enough to avoid their orbits collapsing in the atmosphere. The satellite can then change or maintain its orbit by means of propulsion, usually chemical or ion thrusters.

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a) The change in temperature of water is 0.0084°C.

b) The potential energy is transformed into kinetic energy, which is ultimately transformed into water heat.

c) The metal lost energy as a result of the friction created by the metal's motion inside the water, and this energy was then transformed to heat energy to raise the temperature of the water.

What is kinetic energy?

Kinetic energy is a type of energy that a moving object or particle experiences. When an item undergoes work—the transfer of energy—by being subjected to a net force, it accelerates and acquires kinetic energy. A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its properties. The type of motion could be vibration, rotation on an axis, translation (or travel along a path from one place to another), or any combination of these.

Given,

Potential energy which is lost by the metal through the height, h

= 6m

We know,

PE = mgh

= 0.15 × 9.8 × 6 = 8.82 J

This is the energy used to heat up the water,

So, 8.82 = M × C × dT

Where,

M = 0.25 kg

C = 4186 J/kg/C

dT = Change in temperature of water

= T-22

So,

0.25 × 4186 × (T-22) = 8.82

T = 22.0084°C

Hence, The change in temperature is 0.0084°C.

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It fluctuates with depth, which makes it complex. Imagine that the container is just a cylinder and that the pressure is the result of a spring pressing on it from the top.

The concept of pressure is crucial to fluid mechanics and is utilized in the ideal gas law to characterize a gas's energy, among many other physical applications.

When you stress about not meeting your standards or those of other people, you feel pressure. Additionally, you could experience it when circumstances are beyond your control and you lack the time or resources to do the tasks that are expected of you.

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'In a collision between a huge SUV and a small hybrid car, the SUV exerts a larger force on the hybrid than the hybrid exerts on the SUV' is false.

Every action has an equal and opposite response, according to Newton's third law of motion.

The above law says that, forces on both the vehicles are equal and opposite.

So, the force exerted by a huge SUV and a small hybrid car are the same. And SUV does not exert a larger force as it is huge.

Impact on both the vehicles is also same as the impulse is nothing but the force multiplied by the time of contact. The time of contact is same for both vehicles.

Thus, the above statement is false.

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The true statement is that; "Halo stars formed before disk stars, The protogalactic cloud contained essentially no elements besides hydrogen and helium."

We know that a star is a part of the solar system. The solar system is made up of many of the celestial bodies that can be found in the outer space. Some of them are able to produce light while some of the bodies that can be found in the solar system do not produce light.

The  milky way is the star galaxy that has been known to govern the earth and it is known to develop at a slower rate than all the other galaxies that we know.

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Missing parts;

According to present scientific understanding of the Milky Way's formation, which of the following statements are true? Select al that apply. Halo stars are stars that are born in the disk and ejected into the halo by gravitational encounters. The galaxy formed from the collapse of a single, giant protogalactic cloud. Disk stars formed before halo stars. Halo stars formed before disk stars. The protogalatic cloud(s) contained essentially no elements besides hydrogen and helium

Specific heat of gold, aluminum, and water. The rank of these three substances from the least expected temperature change to the greatest expected temperature change is

                                     water > aluminum > gold

• Specific heat is the amount of heat required to raise the temperature of 1 kilogram of a substance by 1∘C.  

• Aluminum's specific heat is 0.216 calories/gm·°C, which is equal to 7 times more than that of gold (0.031 calories/gm·°C). and Water has the highest specific heat capacity of any liquid and solid substance.

• The specific heat of gold is lesser than aluminum and the specific heat of aluminum is lesser than water, which means less heat is required to raise the temperature of gold by a certain difference in temperature.

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The magnitude of the acceleration of the skydiver will be 9.4m/s²

Acceleration is the rate of change in velocity.

It involves a change in speed and direction. When acceleration involves a change in speed only there is; Positive acceleration which occurs when an object speeds up. Negative acceleration occurs when an object slows down. Acceleration is a change of velocity over a period of time, expressed by the equation below.

A=Δv/t

At terminal velocity v, acceleration;

a = g

where,

g = Acceleration due to gravity (9.8m/s²)

ma = mg - m[tex](\frac{1}{2}) ^{2}[/tex]g

a = g(1 - [tex]\frac{1}{25}[/tex])

a = [tex]\frac{24}{25}[/tex]g

a = [tex]\frac{24}{25}[/tex] x 9.8

a = 9.4m/s²

The acceleration of the skydiver who is currently falling at one-fifth his eventual terminal speed is 9.4m/s²

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a)  The value of its capacitance is 0.90 pF

b)  The charge on the capacitor is 15.3 pC

c)  The magnitude of the uniform electric field between the plates is 6.8 N/C.

given that :

are of the parallel plate capacitor = 2.60 cm²

distance d = 2.5 mm

potential =  17 V

a)  The value of its capacitance is :

C = Eo A / d

  = ( 8.85 × 10⁻¹² C² / N . m ) ( 2.60 × 10⁻⁴ m²) / 2.50 × 10⁻³

  = 0.90 × 10⁻¹² F

 = 0.90 pF

b)  The charge on the capacitor is :

q = CVo

q = 0.90 × 10⁻¹² F × 17 V

q = 15.3 × 10⁻¹² C

q = 15.3 pC

c) The magnitude of the uniform electric field between the plates is :

E = Vo / d

E = 17 / 2.50 × 10⁻³

E = 6.8 N/C

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The Rotation Curve of a Spiral Galaxy animation and click on at various distances from the galactic center to create a graph of the galaxy's rotation curve beginning from the center, speeds in the beginning upward push hastily, after which turn out to be nearly consistent with increasing distance.

Circ = R ∂Φ/∂R. mean orbital motion and their bulk rotational speed can be slightly smaller than the round pace. Spectroscopic radial velocities may be used to determine the rotational velocities of spiral galaxies provided that the galaxies are inclined to the line of sight.

The rotation curve (RC) of our Galaxy, the Milky Way, is built starting from its very internal regions (few hundred parsecs) out to a massive galactocentric distance of ∼2 hundred kpcs the usage of kinematical statistics on an expansion of tracer gadgets shifting in the gravitational potential of the Galaxy, without assuming any theoretical.

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48.7 m

When a stone is dropped from a cliff, the stone accelerates downwards due to gravity. We investigate the displacement-time using Newton's Second Law-based kinematic equations. When the stone hits the water surface, sound waves travel the same vertical displacement as the stone to reach the ear of the observer. The motion of sound is a constant-speed motion.

Write an equation for the time it takes for the stone  to hit water, PLUS the time for the sound of the splash to come bace. You know the total time; solve for the height, H. Use a suitable speed of sound, such as 340 m/s; you would need to assume a temperature for a more accurate value of the sound speed.

5(seconds) = H/340 + sqrt (2H/g)

[5- (H/340)]^2 = H/4.9

10-(2H/340) = H/4.9

10-0.0058H = H/4.9

H +0.0058H = 10 X 4.9

H(1+ 0.0058) = 49

H = 49/1.0058 =48.7 m

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a) The velocity as the Physics Astone hits the ground be 29.69 m/s.

b) Time to reach  on the ground be 3.03 second.

c)   Velocity after 0 sec​ of falling is zero.

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Given that:  Physics Astone is dropped from a 45m tall building.

Acceleration due to gravity: g = 9.8 m/s^2.

So,

a) velocity as it hits the ground = √(2gh) = 29.69 m/s.

b) Time to reach  on the ground = velocity/acceleration = 29.69/9.8 second = 3.03 second.

c)  Velocity after 0 sec​ of falling is zero.

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Mechanical energy is the energy that machines use to do work and levers are a machine that increases force sleever that increases speed.

There are two types of hydroelectric power projects is conventional and pumped storage. In a conventional hydroelectric facility, water passes from the intake and out the outflow one time.

In a pumped storage facility, water may pass through the turbine multiple times. The operation of a hydropower project, like any power plant, may generate solid and industrial wastes.

Hydroelectric power generation decommissioning includes waste management of any reservoir sediments, especially where power plant placement is downstream from significant industrial or natural environmental hazard sources.

In Hydroelectric power generation, kinetic energy of the water is converted into the mechanical energy of the turbine which further converted into the electrical energy.

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Monorail, sometimes known as a single-rail railroad. This rail could be found either on top of or below the train cars. Cars are supported by wheeled axles that travel along an overhead rail in systems that use them. The system is stabilized gyroscopically.

How is the monorail powered?

Power. Although diesel-powered monorail systems do exist, the majority of current monorails are driven by electric motors fed by twin third rails, contact wires, or electrified channels attached to or enclosed in their guide beams. Some systems in the past, like the Lartigue Monorail, utilized steam engines.

How does monorail technology work?

A monorail is a type of railway system where the trains are either supported or hung and the track is made up of a single elevated rail, beam, or track. The phrase is also used to refer to the system's beam or the vehicles that move along a beam or track like that.

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The phrases that best express separation and movement are those. A. Displacement and distance both have a direction. (Select A).

Transferring unfavorable emotions from one item or person to another is referred to as displacement and is a defensive tactic. To "take out" their rage on a family member, for instance, a person can yell at them if they are upset with their job.

Replace, supersede, and supplant are some frequent alternatives to the word "displace." While all of these phrases refer to "putting out of a normal or suitable position or into the place of another. Thousand had been displaced by fighting.

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The net electric force on particle q₂ is determined as -9.86 N.

The net force of particle q₂ is determined by applying Coulomb's law of electrostatic force.

The electric force between particle q₁ and q₂ is the repulsive force and the magnitude is calculated as;

F₁₂ = kq₁q₂ / r²

where;

F₁₂ = -(9 x 10⁹ x 13 x 10⁻⁶ x 7.7 x 10⁻⁶) / (0.25²)

F₁₂ = -14.4 N

The electric force between particle q₃ and q₂ is the attractive force and the magnitude is calculated as;

F₂₃ = kq₃q₂ / r²

F₂₃ = (9 x 10⁹ x 5.9 x 10⁻⁶ x 7.7 x 10⁻⁶) / (0.3²)

F₂₃ = + 4.54 N

The net force on the particle q₂ is calculated as;

F (net) = F₁₂ + F₂₃

F (net) = -14.4 + 4.54

F (net) = -9.86 N

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The wave in which particle vibrate parallel to the direction of the motion are longitudinal waves the bending of the wave at an angle in a new medium is refraction the combination of two or more waves is called superposition and the distance between two identical points in a wave is called wavelength.

The longitudinal waves are the kind of waves in which the particle vibrates parallel to the direction of the motion.

The bending of a wave when it enters into a new medium at any certain angle is called the refraction of waves. The combination of two or more wave that rearald in a single wave is called the superposition a wave and the distance between any two points that are identical to each other in a wave is called the wavelength of a wave.

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If the given speed of any atom in a monatomic state of an ideal gas were doubled, then by using four factor we would multiplied the Kelvin present temperature of the gas. Option (a) is correct.

We recollect a monatomic best fueloline having debris of mass m that don't engage and whose middle of mass stays at rest. For a monatomic best fueloline (which include helium, neon, or argon), the most effective contribution to the strength comes from translational kinetic strength. The common translational kinetic strength of a unmarried atom relies upon most effective at the fueloline temperature and is given through the equation: Kavg = 3/2 kt.

These are helium, neon, argon, krypton, xenon, and radon. Noble gases have a complete outer valence shell making them as an alternative non-reactive species. Many gases which include nitrogen, oxygen, hydrogen, noble gases, a few heavier gases like carbon dioxide and combinations which include air, may be dealt with as best gases inside affordable tolerances over a significant parameter variety round widespread temperature and pressure.

We know that,

K.E = (1/2) m*[tex]V^{2}[/tex]

If we doubled the speed then 2*2=4 times its affect the temperature.

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The answer is None of the above.

What is acceleration?

Acceleration is the rate at which velocity changes over time, both in terms of speed and direction. A point or object travelling in a straight path is accelerated if it accelerates or decelerates.

The acceleration imparted to objects as a result of the combined influence of gravitation and centrifugal force.

During juggling, there is no way to slow down ball's acceleration. Gravity acts as a downward acceleration force as soon as a ball is thrown into the air. The only way a juggler may slow down a pattern is by changing the height of his throws because the acceleration of gravity is constant.

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The post-collision velocity of miguel and his car turns out to be 10 m/s

determining the collision?

A collision in physics is any situation in which two or more objects rapidly exert force on each other. Despite the fact that the most common usage of the word "collision" refers to situations in which two or more objects collide violently, the scientific usage of the word makes no assumptions. so.

Here are some examples of physical encounters that scientists might classify as collisions:

An insect's leg is said to hit a leaf as it falls on it.

Each contact of a cat's paw with the ground when crossing a lawn is considered a collision, as is every contact of a cat's fur with a blade of grass.

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