Explain how heating a gas can lead to: no change in the kinetic energy of the gas.​

a ) The resultant of these two forces is 715.92 N at 4.4° to the right of the forward dashed line

b ) If the car has a mass of 2850 kg, its acceleration is 0.25 m / s²

Resolving F1 into its vertical and horizontal component,

F1y = F1 cos θ

F1y = 310 * cos 32°

F1y = 263.5 N

F1x = F1 sin θ

F1x = 310 * sin 32°

F1x = 164.3 N

Resolving F2 into its vertical and horizontal component,

F2y = F2 cos θ

F2y = 464 * cos 13°

F2y = 450.1 N

F2x = F2 sin θ

F2x = 464 * sin 13°

F2x = 106.72 N

∑ Fx = F1x - F2x

∑ Fx = 164.3 - 106.72

∑ Fx = 57.58 N

∑ Fy = F1y + F2y

∑ Fy = 263.5 + 450.1

∑ Fy = 713.6 N

R² = ( ∑ Fx )² + ( ∑ Fy )²

R² = ( 57.58 )² + ( 713.6 )²

R² = 3315.46 + 509224.96

R = 715.92 N

tan θ = ∑ Fy / ∑ Fx

tan θ = 713.6 / 57.58

tan θ = 12.39

θ = 85.6° ( With the horizontal )

With the forward dashed line,

θ = 90 - 85.6

θ = 4.4° ( To the right of the forward dashed line )

F = m a

F = Force

m = Mass

a = Acceleration

m = 2850 Kg

a = F / m

a = 715.92 / 2850

a = 0.25 m / s²

Therefore,

a ) The resultant of these two forces is 715.92 N at 4.4° to the right of the forward dashed line

b ) If the car has a mass of 2850 kg, its acceleration is 0.25 m / s²

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To known about all the answers, we first known about the photon and wavelength concept.

What is a photon?

A tiny energy packet of electromagnetic radiation is called a photon, referred to as a light quantum. Albert Einstein proposed the existence of discrete energy packets during the transmission of light in his 1905 description of the photoelectric effect, which gave rise to the photon concept.

What is wavelength?

A waveform signal's wavelength is the separation between two identical points (adjacent crests) in adjacent cycles as the signal travels through space or along a wire. This length in wireless systems is typically specified in meters (m), centimeters (cm), or millimeters (mm).

a)  Distance between the earth and the sun is

   1.5*10^N

Speed of photon = 3*10^8m|s

Time= distance/speed

   = 1.5*10^11m/3*10^8m|s

   = 0.5*10^3 second

   = 500 sec

  = 8.3 minutes.

b) energy of the photon is given by

E=hc/⋋

h= planks constant – 4.14* 10^15 eVs

c= Speed of light- 3*10^8 m/s

⋋= 558 nm= 558* 10^9 m

E= 4.14* 10^15 eVs* 3*10^8 m/s /558* 10^9 m

E= 2.23 eV

c) Wavelength color

495–570 nm for green. 570–590 nm for yellow. Orange (590–620 nm). Red: 620-750 nm

d) Let the wavelength be ⋋

We know E=hc/⋋

1 eV= 4.14*10^-15 eVs* 3*10^8m/s/⋋

⋋ = 12.42*10^-7m

⋋ = 1242 nm.

Therefore, Distance between the earth and the sun is 8.3 minutes. Energy of the photon is given by 2.23 eV. Wavelength color is green or yellow. The wavelength be ⋋ is 1242 nm.

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A person shakes a sealed, insulated bottle containing coffee for a few minutes, then the change in the temperature of the coffee increases slightly.

The temperature of the coffee increases when insulated bottle is sealed and shaken because the exchange of heat from the surrounding from the thermos bottle is zero. From the first law of thermodynamics, the work done on system is equal to the change in internal energy.

As thermos flask is insulated, therefore no heat energy is added to the system,

Therefore, △Q=0

Work is done  by shaking it against viscous force.

Now, △w=−ve

Internal energy , △U=△Q−△w=0−(−△w)

△U=+△w

So, △U=+ve

Hence, temperature of the system increases due to the increase in internal energy.

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Text is helpful for guiding the viewer and assisting with understanding. The graph's text provides extra details. In graphs, there are two different sorts of text: text that appears around the data regions.

In mathematics, a graph is a visual representation of any data that has been organized. The graph depicts the link between the various variables. The set of items that are somehow related to one another is represented by the graph in a graph theory.

A report can include numerous data regions. Data regions expand to hold the information from the report dataset to which they are associated. For instance, a matrix that shows annual sales for each product has a row group based on the names of the products and a column group based on the years.

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a. The acceleration of the system is 0.21 m/s^{2}

b. The equation of the force of friction is -

tension force - force of friction = unknown mass x its acceleration and force of friction is equal to product of coefficient of friction and                    normal force acting on unknown mass .

c.  Newton's second law of motion applies when there are unbalanced forces acting on an object. According to the second law, the mass and the net force acting on the object both affect how quickly an object is accelerating . An object's acceleration is directly proportional to the net force applied and inversely proportional to the object's mass. An object's acceleration increases as the amount of force exerted on it does. A decreasing acceleration is caused by an increase in an object's mass.

The unknown mass is nearly equal to 30 kg .

What is acceleration ?

the rate at which the speed and direction of a moving object vary over time is termed as acceleration . An object going straight ahead  when it accelerates or decelerates,  is said accelerated. Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.

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The gravitational force between the asteroids with masses 3. 71 x 10^5 kg and 1. 88 x 10^4 kg are separated by a distance of 1,300 m is 27.5 * 10^-8 N

F = G m1 m2 / r²

F = Gravitational force

m1 , m2 = Masses

r = Distance between m1 and m2

m1 = 3.71 * 10^5 kg

m2 = 1.88 * 10^4 kg

r = 1300 m

G = 6.67 * 10^-11 N m² / kg²

F = 6.67 * 10^-11 * 3.71 * 10^5 * 1.88 * 10^4 / 1300²

F = 46.52 * 10^-2 / 169 * 10^4

F = 27.5 * 10^-8 N

According to Newton's law of gravitation, any matter in the universe attracts another matter with a force. This force of attraction is directly proportional to the product of their masses and inversely proportional to the square of distance between them.

Therefore, the gravitational force between the asteroids is 27.5 * 10^-8 N

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An electron moving north will slow down and eventually reverse its direction if it enters an electric field that points north.

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The initial velocity of the ball thrown vertically into the air reaching a maximum height is 20 m/s.

Velocity can be defined as the ratio of displacement to time.

To calculate the initial velocity of the ball, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the initial velocity of the ball is 20 m/s.

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The infrared image would reveal radiation coming from all around Earth, whereas the ultraviolet image would only show artificial sources like lighting.

There are numerous uses for infrared. Heat sensors, thermal imaging technology, and night vision gear are some of the most popular. Infrared light is used in both wired and wireless communications and networking operations.

To avoid Earth's atmosphere and obtain a clearer view of the planets, stars, and galaxies that we are studying, space telescopes are primarily launched into orbit. Only some light can enter our atmosphere because it acts as a barrier, blocking all other light.

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The primary indicator that can help us distinguish between open, closed, and flat universe models is the universe's overall density.

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The displacement of an aluminum block, which is fixed in place, measures 90 x 90 cm with a height of 60 cm is 0.36 cm

S = Shear ε / Shear γ

S = Shear Modulus

ε = Stress

γ = Strain

S = 3 * [tex]10^{10}[/tex] Pa

Shear γ = 0.006

Shear ε = S * Shear γ

Shear ε = 3 * [tex]10^{10}[/tex] * 0.006

Shear ε = 1.8 * [tex]10^{8}[/tex]

Shear ε = 180 MPa

Displacement = Shear ε * l

l = Length = 60 cm

Displacement = 0.006 * 60

Displacement = 0.36 cm

Therefore, the displacement of the upper phase aluminum block is 0.36 cm in the direction of applied force.

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If a block of material has a mass of 16 grams and a volume of 8 cubic centimeters, then density is 2 grams per cubic centimeter.

Density = mass / volume

Density = 16/8 = 2 grams per cubic centimeter.

The substance's mass per unit of volume is its density (also known as specific mass or volumetric mass density). The Latin letter D can also be used to represent density, however the most common symbol is (the lower case Greek letter rho). According to mathematics, density is determined by dividing mass by volume, where denotes the density, m denotes the mass, and V denotes the volume. Although it is incorrect scientifically - this amount is more precisely known as specific weight – in some circumstances (for example, in the US oil and gas business), density is roughly described as its weight per unit volume.

Density and mass concentration have the same numerical value for a pure substance. Varied materials often have different densities, therefore purity and buoyancy may both be affected by density.

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The instantaneous magnitude of the poynting vector will be 518.48.

To calculated magnitude of the poynting vector, we require to use the formula of poynting vector

S = E*B/u

since B = E/c

so , S = E^2 /uc

where , E is the electric field and B is the magnetic field ,

S is the poynting vector magnitude and c is the speed of light.

Putting the values, we get

S = (442x442) /uc

S =  195364 / uc

uc = 4πx[tex]10^{-7}[/tex] x 3 x [tex]10^{8}[/tex]

uc = 376.8

Now, S = 195364/376.8

S = 518.48

Hence The instantaneous magnitude of the poynting is 518.48.

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an advantage that liquid water has as a biological solvent compared to other alternatives IS, when it freezes it becomes less dense. it is a liquid over a wide temperature range and remains liquid at higher temperatures. It is able to dissolve many things

A solvent is a molecule that has the ability to dissolve other molecules, known as solutes. A solvent can be solid, liquid or gas. The molecules of the solvent work to put the solute molecules apart. Eventually, the molecules of solute become evenly distributed in throughout the solvent. This homogenous mixture is perfectly even, and cannot be separated physically. Heat or another chemical process must be applied to the solution to separate the solvent and solute.

Molecules in general have two classes, polar and nonpolar. Polar molecules have separated electrical charges on different sides of the molecule. Nonpolar molecules, while they can fluctuate in charge, do not carry a static charge. Both es of molecules can act as solvents, as described below.

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The angular acceleration of the wheel is 3,367.28 rad/s².

The angular acceleration of the wheel is calculated by applying the first kinematic equation as shown below.

ωf² = ωi² + 2αθ

where;

The given parameters include the following;

The angular acceleration of the wheel is calculated as follows;

ωf² = 0 + 2αθ

ωf² = 2αθ

α = ωf² / 2θ

α =  ( 460² ) / ( 2 x 31.42 )

α = 3,367.28 rad/s²

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The direction of the induced current in the loop will be clockwise.

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The amplitude of the motion is A = 7.3*10⁻²m and the maximum speed attained by the object Vmax=0.66 m/s

speed v= 0.65 m/s

Angular speed is ω,

ω = √k/m=√260/3.1=9.15 s⁻¹

Amplitude = A is

A = √x²+v²/ω²

  =√0.019²+0.65²/9.15²=0.073m

A=7.3*10⁻²m

Vmax=ωA=9.15*0.073

Vmax=0.66 m/s

The distance in amplitude between the wave's resting position and its highest movement. quantity of waves travelling by a particular point each second. The length of time it takes for one wave cycle to end. We experience loudness or volume as a function of the relative strength of the sound waves (transmitted vibrations).Amplitude is a tool for studying data on user behavior. It helps the growth, product, and marketing teams make decisions by drawing conclusions about user behavior from data. Understanding user behavior better can assist a business in developing fresh approaches to increase user engagement, customer loyalty, and income.

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Using Ohm's Law and the power formula, V² / R is derived.

Simple harmonic motion is a particular kind of periodic motion in which the restoring force on the moving item is directly proportionate to the size of the displacement and acts in the direction of the object's equilibrium position. The force driving the movement is always pointed in the direction of the equilibrium position and is inversely proportional to the separation from it. F = kx, where F is the force, x is the displacement, and k is a constant, is what this means. Hooke's law is the name of this relationship. This varying acceleration, which is always pointed in the direction of the equilibrium position and is proportionate to the displacement from the equilibrium position, is what distinguishes simple harmonic motion.

Power(P) = Potential difference (V) × Current (I)

So

Now by ohm's law

I =V/R

On substituting the value of current in the equation

P=VI

We get

P= V × V/R

P=V² / R

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Insulators can by charged only by friction.

An electrical insulator is a cloth wherein electric powered modern-day does no longer drift freely. The atoms of the insulator have tightly certain electrons which can not quite simply move. Other substances—semiconductors and conductors—conduct electric modern greater effortlessly.

Insulators are used in electric system to help and separate electrical conductors with out allowing current thru themselves. An insulating material utilized in bulk to wrap electrical cables or other gadget is known as insulation. The time period insulator is likewise used greater specially to consult insulating supports used  to utility poles and transmission towers.to attach electric powered strength distribution or transmission lines

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The percent of the world’s earthquakes occurring around the pacific rim/ring of fire will be 90%.

The Ring of Fire is home to more than 450 volcanoes or 75% of all volcanoes on Earth. The majority of earthquakes that occur on Earth, including the most intense and spectacular seismic occurrences, ever recorded, happen along its course. The region of earthquakes encircling the Pacific Ocean is known as the "Ring of Fire," also known as the Circum-Pacific belt; it is where 90% of all earthquakes on earth take place.

The extensive movement of tectonic plates in the region is the reason for the high frequency of earthquakes and volcanoes in the Ring of Fire. Plates collide along convergent boundaries known as subduction zones around a large portion of the Ring of Fire. In other words, the plate above pushes down or subducts, the plate below.

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The maximum force (Fmax) from the bat which hits the ball with a speed of 40 m/s of weight 0.145kg is 5.8 N.

A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects. The force is no longer felt by the two objects when the interaction ends. Only when there is interaction do forces actually exist.

Given,

mass of ball is 0.145 g.

speed of ball after being hit is 40 m/s.

maximum force =?

time taken to hit the ball be 1 s

By using the formula, F = ma

where,

F = force from the bat

m = mass of the ball

a = acceleration of the ball

But,

a = s/t

where,

s = speed of the ball being hit

t = time taken

F = ms/t

F = 0.145 x 40 / 1

F = 5.8

∴ force from bat is 5.8 N.

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The heat generated by cars, factories, furnaces, lights, air conditioners, and heat-absorbing dark roofs and streets helps create an urban heat island in the central city.

An urban heat island arises while cities update the herbal land cowl with dense concentrations of pavement, homes, and other surfaces that soak up and keep the warmth. This effect increases power costs (e.g., for aircon), air pollutants stages, and warmth-related illness and mortality.

Heat islands form as plants are replaced by asphalt and urban for roads, homes, and other systems necessary to deal with growing populations. those surfaces soak up—rather than replicate—the sun's warmth, causing floor temperatures and basic ambient temperatures to rise.

An urban heat island happens when a city experiences much warmer temperatures than close rural areas. The difference in temperature between urban and less-evolved rural regions has to do with how properly the surfaces in each surrounding absorb and keep warm.

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The period of a 3.00kg object moving in a simple harmonic motion is 5.02s

Simple harmonic motion is a system where the object oscillates around the equilibrium position.

Based on the theorem, there are some formulas:

x(t) = A.cos t (ωt+∅)

x max = A

v max = Aω

a max = Aω²

ω = 2π/T = 2πf

From the question, we got some informations:

m = 3.00kg

v max = 4.00 m/s

a max = 5.00 m/s²

T = ?

We will use the formula for a max and v max to find the value of ω:

v max = Aω

v max = 4.00 m/s

Aω = 4.00 m/s ...(i)

a max = Aω²

5.00 = v max (ω)

5.00 = 4.00ω

ω = 1.25 rad/s ..(ii)

Next, we will use the Period formula:

ω = 2π/T

1.25 = 2π/T

T = 1.6π s

T = 5.02s

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Answer:

About 2483 miles per hour.

Explanation:

Check out the image.

The initial speed of the girl's ball relative to the boy is 3 m/s. ​

The initial speed of the girl's ball relative to the boy depends on the time of motion of the girls ball.

The time of motion of the ball from the given height is calculated as follows;

h = vt + ¹/₂gt²

where

h = 0 + ¹/₂gt²

h = ¹/₂gt²

t = √(2h/g)

t = √(2 x 1.5 / 9.8)

t = 0.55 s

The final velocity of the ball is calculated as;

v = gt

v = 9.8 x 0.55

v = 5.39 m/s

However, since we are looking for the initial speed of the girl's ball relative to the boy, we will ignore the final velocity of the ball.

The initial velocity of the ball = 0

The initial velocity of the girl's ball = 2 m/s + 1 m/s = 3 m/s

The relative velocity = 3 m/s - 0 m/s = 3 m/s

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The initial velocity is -25m/s.

What is velocity?

Velocity, which is a vector quantity, is referred to as the "pace at which an item changes its position." Imagine someone moving quickly, constantly going back to their starting position after taking one step forward. The velocity would be zero, even though there might be a frenzy of activity as a result.

What is acceleration?

Acceleration is the rate at which the direction and speed of motion change over time. Anything is said to have been accelerated when it moves straighter and faster or slower. Motion on a circle accelerates even though the speed is constant because the direction is constantly changing.

Is up in physics positive or negative?

If you choose to make the upward direction negative and the downward direction positive (the commonly accepted convention), then g will be positive if the object is stationary or moving downwards. If an object is moving upward, g will be negative.

Therefore, the initial velocity is -25m/s.

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For general projectile motion with no air resistance, the horizontal component of a projectile's acceleration is: E. is always zero.

Projectile motion can be defined as a form of motion which is experienced by a physical object that is projected near planet Earth's surface while moving along a parabolic (u-shaped curve) path, and under the influence of a gravitational force only.

Based on scientific research and records, we can infer and logically deduce that the initial horizontal velocity of an object undergoing a projectile motion is always equal to its final horizontal velocity.

Additionally, the horizontal component of the acceleration of a physical object that is undergoing a projectile motion is always equal to zero (0) meter per seconds square because it is experiencing a constant velocity.

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Complete Question:

For general projectile motion with no air resistance, the horizontal component of a projectile's acceleration

A. remains a non-zero constant

B. continuously decreases

C. continuously increases

D. first decreases and then increases

E. is always zero

the wavelength of the following frequencies in the am radio band (540-1600 khz) is 555.55 m,187.5 m

the wavelengths of the following frequencies in the fm radio band (88.0-108 mhz) is 3.409 m,2.7777 m

Wave length   λ  =  c / f  

(a). Maximum wavelength = ( 3 * 10 ^ 8 m / s ) / ( 540 * 10 ^3 Hz )

                                      = 555.55 m

minimum wavelength = ( 3 * 10 ^ 8 m / s ) / ( 1600 * 10 ^ 3 Hz)

                              = 187.5 m

(b). Maximum wavelength = ( 3 * 10 ^ 8 m / s ) / ( 88 * 10 ^ 6Hz )

                                       = 3.409 m

Minimum wavelength  = ( 3 * 10 ^ 8 m /.s ) / ( 108 * 10 ^6 Hz )

                                = 2.7777 m

Wavelength is the separation between identical points (adjacent crests) in successive cycles of a waveform signal traveling through space or over a wire. In wireless systems, this length is typically expressed in meters (m), centimeters (cm), or millimeters (mm). The wavelength is more frequently described in nanometers (nm), which are units of 10-9 m, or angstroms (), which are units of 10-10 m, for infrared (IR), visible light (VL), ultraviolet (UV), and gamma radiation().

Frequency, or the number of wave cycles per second, and wavelength have an inverse relationship. The wavelength of the signal decreases with increasing frequency. The pattern of disruption brought on by energy moving through a medium is known as a sound wave.

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A ball is shot from the ground straight up into the air with initial velocity of 41 ft/sec. It takes 1.28 sec to reach its  its maximum height of 26.27feet.

a ball is shot straight up into the air with initial velocity of 41ft/sec

S = [tex]S_{0} +V_{t} - 16t^{2}[/tex]

height [tex]S_{0} = 0[/tex]

velocity [tex]V_{0}[/tex] = 41ft/sec

S= 0+41t- 16[tex]t^{2}[/tex]

S = 41t -16[tex]t^{2}[/tex]

instantaneous velocity v

V = ds/dt = [tex]V_{0}[/tex]- 32t

V = 41-32t

32t = 41

t =  41/32 = 1.28 sec.

S = 41t-16[tex]t^{2}[/tex]

  = 41 ( 1.28)- 16 [tex](1.28)^{2}[/tex]

 =  52.48 - 26.21

 = 26.27

The pace at which an object's position changes in relation to a frame of reference and time is what is meant by velocity. Although it may appear sophisticated, velocity is just the act of moving quickly in one direction. Since it is a vector quantity, the definition of velocity requires both magnitude (speed) and direction. Its SI equivalent is the meter per second (ms-1). A body is considered to be accelerating if the magnitude or direction of its velocity changes.

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Answer:

Explanation:

b

Answer: The correct answers are B and C. :)

Explanation: