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1.47$ eV is the maximum kinetic energy of the photoelectrons when the light of wavelength 300.0 nm falls on the metal surface.

The maximum kinetic energy of the photoelectrons is directly proportional to the frequency of the incident light. The frequency of light with a wavelength of 400 nm is given by the formula

Plugging in the values, we get $f=3.00 \times 10^8 \text{ m/s}/400\text{ nm}=7.50 \times 10^{14}$ Hz.

The maximum kinetic energy of the photoelectrons when the light of this frequency falls on the metal surface is 1.10 eV.

The maximum kinetic energy when light with a frequency of

falls on the metal surface is therefore given by the formula

Note: This assumes that the other conditions (such as the intensity of the light and the material of the metal surface) are the same in both cases. If these conditions change, the maximum kinetic energy of the photoelectrons will also change.

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A capacitor can only be fully charged or discharged after five time constants. It is accurate to say this.

Let Q0 represent the maximum charge.

where t is the length of time, and is the speed of time.

The sum of the equal resistance R and capacitance comparable C is used to indicate the time constant for the RC circuit.

(τ=RC)

Q=Q0(1−e−t/τ)

Q=Q0(1−e−t/RC)

In the exact similar RC circuit, a capacitor's discharge equation can be obtained as

Q= Q0e−t/τ

Q=Q0e−t/RC

Both expressions make it obvious that the exact same time constant is employed for the capacitor's charging and discharging processes.

Consequently, the assertion is accurate.

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The maximum transverse acceleration of a point on a wire is closest to 4.7*10³ m/s².

Calculation :

The maximum transverse acceleration ,

A = 3.7mm = 3.7*10⁻³ m

a=Aw²

w = 2πf

   =(2π)(570)

w   = 3.581*10³

w² = 12.826*10⁶

a = (3.7*10⁻³ m)(12.826*10⁶)

a = 4.7*10³ m/s².

In mechanics, acceleration is the price of exchange of an item's pace with appreciate to time. Acceleration is a vector quantity (as lengthy because it has magnitude and direction. The direction of an item's acceleration is given by means of the path of the net pressure performing on that object. As described in Newton's second law. the significance of an object's acceleration is the combined effect of two assets.

Acceleration inside the car's contemporary route of journey is known as linear (or tangential, within the case of circular movement) acceleration, and the passenger perceives that response as pushing returned into the seat. Acceleration acting while changing direction is called radial (or centripetal in the case of circular motion) acceleration, and passengers revel in the response as centrifugal pressure.

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The spring constant needed to produce a period of 0.5 s for a 0.015 kg is 2.37 N/m.

The period of spring-mass system is proportional to the square root of mass and inversely proportional to the spring constant.

We know the equation for time period as, T = 2π √(m/k)

where, T is the time period in sec

m is the mass in kg

k is the spring constant

Let us make k as the subject from the above formula,

Spring constant k = (4π² * m)/ T²

⇒ 4* (3.14)² * 0.015/ (0.5)² = 2.37 N/m

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His run covered a distance of 6 meters more than his displacement. Only the terminal points determine displacement. Displacement is unrelated to the path travelled.

Let the distance to the first base be x m.

Given: x m is the distance to the first base.

Thus, distance, after overrun, equals x + 3 m.

Distance after returning is therefore equal to

x + 3 + 3 = x + 6 m.

Displacement is now equal to

x + 3 - 3 (going back) = x m.

Because x + 6 > x, displacement equals distance.

the magnitude of the player's total displacement from the batter's box is

6 meters.

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The gravitational field gx at the surface of planet x compare with the gravitational field gy at the surface of planet y as illustrated by gX=3gY.

According to physics, a gravitational field is the influence a massive body has on the area around it, exerting a force on another massive body. In other words, a gravitational field measured in newtons per kilogram (N/kg) helps to explain gravitational field.  

It should be noted that gravitational field is a model used to explain the influences that a massive body extends into the space around itself, producing a force on another massive body.

Planet X has a radius of RR and a mass of MM. Planet Y has a radius of 3R3R and a mass of 3M3M. As shown above, identical satellites orbit both planets at a distance RR above their surfaces. The planets are so far apart that the gravitational forces between them are insignificant. Here, the comparison is gX=3gY.

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Complete question

Planet X has a mass of MM and a radius of RR. Planet Y has a mass of 3M3M and a radius of 3R3R. Identical satellites orbit both planets at a distance RR above their surfaces, as shown above. The planets are separated by such a large distance that the gravitational forces between them are negligible.

How does the gravitational field gXgX at the surface of Planet X compare with the gravitational field gYgY at the surface of Planet Y?

According to the electromagnetic spectrum, ultraviolet light has wavelengths from 10 nm to 400 nm and infrared light from 750 nm to 1 mm.

This means that infrared light has a longer wavelength than ultraviolet light.

We know the relation between wavelength and frequency as λ = c / f

where, λ is the wavelength

c is the speed of light

f is the frequency

The above equation tells us that frequency is inversely proportional to the wavelength. In other words, if the wavelength increases, frequency decreases.

As infrared light has a longer wavelength than ultraviolet light, infrared has a lower frequency than ultraviolet rays.

The question is incomplete. The complete question is how do the wavelength and frequency of infrared light compare to the wavelength and frequency of ultraviolet light?

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If the electronic configuration of an atom is 1s2 2s2 2p2 then it has 6 electrons.

This electronic configuration corresponds to carbon, whose atomic number is 6.

The electronic configuration is a form of organization by layers that the electrons have.

Its importance is based on the ability to determine through it the total properties of chemical combination of atoms, which is equivalent to their location on the periodic table of elements.

Furthermore, the electronic configuration of an element defines its binding energy and thus its state at room temperature.

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The order is : Leaf, clam, coyote, fish, jellyfish

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a) The block is acted on by the force of gravity directed downward and the normal force due to the inclined plane directed perpendicular to the inclined surface.

(b) The block's acceleration as it slides down the inclined plane is 5.6 m/s².

(c) The block's speed when it reaches the bottom of the incline is 9.7 m/s.

(d) The block to reach the bottom of the inclined plane is 1.7 s.

In physics, gravity is an essential interaction that reasons mutual enchantment among all things with mass or energy. Gravity is, by a long way, the weakest of the 4 fundamental interactions, approximately 1038 times weaker than the sturdy interplay, 1036 times weaker than the electromagnetic pressure, and 1029 times weaker than the vulnerable interplay. As a result, it has no giant effect on the extent of subatomic debris. but, gravity is the maximum extensive interplay among items on the macroscopic scale, and it determines the movement of planets, stars, galaxies, and even mild.

Gravity additionally has many critical organic capabilities, supporting manual the growth of plants through the technique of gravitropism and influencing the circulation of fluids in multicellular organisms. research into the results of weightlessness has proven that gravity might also play a function in immune machine characteristics and cell differentiation in the human frame.

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The rms voltage of the source is 46.09 V in an i-r-c circuit.

Voltage across the resistor = v₁ = 30 V

Voltage across the capacitor = v₂ = 90 V

Voltage across the inductor = v₃ = 55 V

The rms voltage across the source in an i-r-c circuit is = v =

= v = √ (v₁² + ( v₃ - v₂)² )

= v = √ (30² + ( 55 - 90)² )

= v = √ (900 + ( -35)² )

= v = √ (900 + 1225 )

= v = √2125

= v = 46.09 V

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If the path is frictionless than doubling the mass of the crate and keeping the initial velocity and changed will not change the distance of stopping of the crate.

The stopping distance of anybody sliding on a frictionless path is given by the relation,

D = U²/2a

Where,

D is the stopping distance,

U is the initial velocity and,

a is the acceleration of the body.

As we can see from the above relation that the mass of the body does not alters the stopping distance of the body.

So, here we can conclude that if if mass of the crate is doubled but the initial velocity is not changed, then the distance of stopping of the create will not change.

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A hydraulic lift is being used to elevate a car. The left side of the lift has higher pressure.

We know that, Pressure = Force/ Area

Pressure and area are inversely proportional to each other.

We need to find out the relation between pressures and areas of the two pistons.

So, P₁ A₁ = P₂ A₂

Let the right side of the lift that has larger area is A₂.

Hence, A₂ > A₁

As pressure and area are inversely proportional to each other, to balance the equation, P₂ should have lesser pressure as A₁ is less than A₂.

Thus, P₁ is greater than P₂ and the left side of the lift has greater pressure.

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Radio waves electromagnetic radiation wavelength is efficiently observed using ground based telescopes.

Electromagnetic radiation is made up of electromagnetic field waves that move over space while carrying radiant electromagnetic energy, according to physics. It is made up of radio waves, microwaves, infrared, light,  X-ray and gamma rays. The electromagnetic spectrum includes all of these wavelengths.

Electromagnetic radiation can have low or high energy levels. It is made up of radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays.

When an electron or other atomic particle like it is driven by an electric field, it emits electromagnetic radiation.

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The majority of the sky is black because of light pollution, which also occasionally makes the sky seem lighter than it ought to be and has numerous other detrimental consequences on the environment. Light pollution also obscures the stars.

A galaxy is a collection of stars, stellar debris, intergalactic gas, dust, and gravitational waves that are gravitationally bonded together.

The phrase comes from the Greek word galaxies, which literally translates to mean "milky" and refers to the Galaxy, which houses the Solar System. Galaxies vary in size from dwarf with fewer than 100 million stars to the largest known galaxies, red giants with the one hundred times stars around their galaxy's mass center.

Galaxies are thought to have an average of 100 million stars.

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When hydrogen atoms were enlarged to be 2 miles wide, the size of protons in the nucleus will be the size of a golf ball.

An atom is a unit of matter that specifically characterizes a chemical element. One or more negatively charged electrons surround the core nucleus of an atom, which is made up of all of them. One or more protons and neutrons, which are comparatively heavy particles, can be found in the positively charged nucleus.

The nucleus of an atom is made up of neutrons and protons, two extremely small subatomic particles. More protons (and neutrons) are found in heavier atoms. The lightest element, hydrogen, has a single proton in its nucleus.

Calculations:

1 miles = 1.6 × [tex]10^{3}[/tex] m

Standard diameter size of an atom = 2.4 × [tex]10^{-10}[/tex]

Standard diameter size of a proton = 1.68 × [tex]10^{-15}[/tex]

Given,

Diameter of atom = 2 miles = 2 (1.6 × 10³ m) = 3.2 × 10³ m

Thus,

3.2 × 10³ m / 2.4 × [tex]10^{-10}[/tex]m  =  1.34  × [tex]10^{13}[/tex]

Hence, the increased size of the proton = 1.68 × [tex]10^{-15}[/tex]  × 1.34  × [tex]10^{13}[/tex] = 2.24 × [tex]10^{-2}[/tex]m. Nearly about the size of a golf ball.

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The magnetic field strength required for electrons to pass through without being deflected is zero.

Assuming that the magnetic field is confined to the region between the electrodes, the magnetic field strength necessary to allow the electrons to pass through without being deflected depends on the velocity of the electrons. The higher the velocity of the electrons, the higher the strength of the magnetic field is required to deflect them. For example, if the electrons are moving at a velocity of 10,000 meters per second, then the magnetic field strength needed to deflect them would be approximately 0.05 Tesla.

The strength of the magnetic field is also affected by the distance between the electrodes. The greater the distance between the electrodes, the higher the field strength is necessary to deflect the electrons. For example, if the distance between the electrodes is increased from 1 cm to 10 cm, then the magnetic field strength needed to deflect the electrons would increase from 0.05 Tesla to 0.5 Tesla.

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At the very top and very bottom of the loop, the majority of the acceleration is concentrated in the direction that is oriented toward the center of the circle.

The term "centripetal force" refers to a force that is exerted on a body that is traveling in a circular direction and is directed toward the center around which the body is moving.

The acceleration caused by centripetal force always points in the direction of the circle's center. Because the centripetal acceleration is directed upward at the base of the circle, riders get a sensation of being heavier than their actual weight at this point. Because it points down at the top of the circle, riders are given the impression that they weigh less than they really do.

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According to conductive heat loss views, the adaptations would be beneficial to animals is a)Thin skinlots of tissues, like muscle, with high thermal conductivity. So,correct option is a.

Conductive heat loss is the exchange of intensity through a film. For application in spaces, for example, nurseries, the exchange of concern is ordinarily warmth from inside the nursery that is lost through the skin of the nursery into the external climate. In thermodynamics, heat is characterized as the type of energy crossing the limit of a thermodynamic framework by excellence of a temperature distinction across the limit.

The absolute intensity loss of the article includes loss happening by radiation, convection, and conduction. Heat loss is estimated by the units called Watts. Heat loss equation is communicated by, q = (U × A) ×δt Where, q = all out heat misfortune through the structure in Btu/hr,

Hence, correct option is a.

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(Complete question) is:

From the point of view of conductive heat loss, which adaptations would be beneficial to animals living in extremely cold climates?Group of answer choices

a)Thin skinLots of tissues, like muscle, with high thermal conductivity

b)As small a surface area as possible given the volume of the animal.

c)Lots of tissues, like fat, with low thermal conductivityThick skin

d)As large a surface area as possible given the volume of the animal.

The final volume after the isobaric expansion is V2=4.29 L.

Calculation :

Let V1 be the initial volume of the gas. Considering nitrogen as an ideal gas, use the ideal gas equation to find the initial volume as,

P1V1=nRT1...............(1)

Consider the value of universal gas constant as,

R=0.0821L⋅atm⋅mol⁻¹⋅K⁻¹.

Convert temperature to Kelvin,

T1=(20+273)K=293K

Consider the molar weight of nitrogen gas as, mm=28g/mole.

The number of moles in 5g of nitrogen gas is,

n=m/mm

Substitute the known values,

n=5g/(28g/mole)

=0.179mol

Substitute all the known and calculated values in equation (1),

V1=0.179mol×0.0821L⋅atm⋅mol−1⋅K−1×293K3atm/3 atm

=1.43L

B. The final temperature after the expansion is, T2=879K.

The temperature after the expansion is evaluated using the formula,

V1/T1=V2/T2

T2=V2T1/V1

Substitute the known values,

T2=4.29L×293K/1.43L

=879K

C . The gas pressure after the decrease is P2=1atm.

Using relation,

PV/T=constant

Since volume is kept constant,

P1/T2=P2/T3

P2=P1T3/T2

Substitute the known values,

P2=3atm×293K/879K

=1atm

D. The final gas pressure is P3=3atm

Given data:

Gas is isothermally compressed to regain the initial volume, that is,

V3=1.43L .

Using relation,

PV/T=constant

Since temperature is kept constant,

P2/V2=P3/V3

P3=P2V2/V3

Substitute the known values,

P2=1atm×4.29L/1.43L

=3atm

The final gas pressure is P3=3atm

Pressure (symbol: p or P) is the force normal to the surface of an object per unit area over which that force is distributed.

Various units are used to express pressure. Some of these are units of force divided by units of area. For example, the SI unit of pressure, Pascal (Pa), is 1 Newton per square meter (N/m2). Similarly, pound-force per square inch (psi) is the traditional unit of pressure in imperial and US systems. Pressure can also be expressed as standard atmospheric pressure. Atmospheric pressure (atm) is equal to this pressure and torr is defined as 1/760 of this. Manometric units such as centimeters of water, millimeters of mercury, and inches of mercury are used to express pressure as the height of a particular liquid column within a manometer.

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Photon energy is denoted by hc/lamda. If we consider that an electron's total energy e is much more than its rest energy. Additionally, the de Broglie wavelength of an electron.

Is the same as the wavelength of a photon. One photon's energy is referred to as photon energy. Energy is inversely proportional to wavelength and directly proportional to the electromagnetic frequency of the photon. The frequency of a photon determines its energy. The energy of a photon decreases according to its wavelength. In physics, the wavelength is the length over which a periodic wave repeats, or its spatial period. It is the separation between adjacent spots on a wave that correspond to the same phase.

Photon energy is denoted by hc/lamda.

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The other 3000J of energy was lost as heat to the surroundings.

We know from the first law of thermodynamics that energy can neither be created nor destroyed but it can be converted from one form to the other. Thus the we are told in the question that a stove burner applies 9000J of thermal energy to a system causing an increase of 6000J.

The other 3000 J of energy could not have disappeared into thin air because in that case there would be a violation of the first law of thermodynamics as energy is destroyed.

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The warm water of the lake transfers heat to the alligator through conduction.

Ectothermic animals like alligators depend on outside heat sources to maintain body temperature. By taking a sunbath or relocating to places with warmer or colder air or water temperatures, alligators may regulate their body temperature. Ectothermic, or cold-blooded, alligators experience temperature changes in response to their surroundings. Alligators are forced to actively regulate their body temperature as a result, searching out locations that are both warm and cool enough for them. Alligators may lay in the sun with their jaws open to allow heat to escape while they enjoy the Florida sunshine as it becomes too hot over 92°. Alligators will move very little during the day and become more active at night if the temperature is too high.

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The gravity on this alien planet is 3.8 m/s².

The gravity on this alien planet is calculated by applying Newton's second law of motion.

F = mg

where;

The mass of the skydiver is calculated from his weight on Earth

m = ( 1470 N ) / (9.8 m/s²)

m = 150 kg

The weight of the skydiver on the alien planet is calculated as follows;

W = 1470 N - (600 N + 300 N)

W = 570 N

The acceleration due to gravity on the alien plane is calculated as follows;

g = 570 N / 150 kg

g = 3.8 m/s²

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As a result, the hollow is 10.90 meters long and the distance between the nodal planes is 1.36 meters.

The oscillations between an electric field and a magnetic field produce waves known as electromagnetic waves, or EM waves.

By definition, we understand that the frequency equals,

f = c/λ

where,

λ = wavelength

c= Speed of light

λ = 2L / n

While the wavelength is equal to,

Where,

L = Length

n = Number of antinodes/nodes

PART A) We know that the first component's wavelength is 110 MHz, so

λ = c/ f

λ = 3*10^8 / 11*10^6

λ = 1.36m

Therefore the distance between the nodal planes is 1.36m

PART B) For this part we need to find the Length through the number of nodes (8) and the wavelength, that is,

λ` = 2l /n

L = 8*2.72/ 2

L = 10.90m

Therefore the length of the cavity is 10.90m.

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The gravitational field on planet y is one-third that on planet x.

A gravitational field is athe rgion around a mass where the effect of its gravitational force is felt.

Since planet x has a mass of m and a radius of r. planet y has a mass of 3m and a radius of 3r. identical satellites orbit both planets at a distance r above their surfaces. To find how their gravitational fields compare, we find the magnitude of their gravitational acceleration g

The gravitational acceleration is given by g = GM/R² where

For planet x, we have that

So, substituting the values of the variables into the equation, its gravitational acceleration is gx = GM/R²

gx = Gm/r²

For planet y, we have that

So, substituting the values of the variables into the equation, its gravitational acceleration is g = GM/R²

= G(3m)/(3r)²

= 3Gm/9r²

= Gm/3r²

Since gx = Gm/r², we have that

gy = Gm/3r²

= (Gm/r²)/3

= gx/3

So, the gravitational field on planet y is one-third that on planet x.

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So our solar is honestly a median star, so it is now no longer mainly big or very small at all.

So common stars do not have sufficient mass to blow up on the quit in their lives neutron stars, the pressure of gravity has beaten the resistance of electrons to compression and has compelled them to mix with protons to shape neutrons. Even the nuclei of atoms are obliterated on this process, and subsequently the collective resistance of neutrons to compression halts the collapse.

Large stars can explode as they end burning their nuclear fuel, inflicting a supernova. The explosion blows away the outer layers of the star. According to Newton's 1/3 law, the forces that push the outer layers away have response forces which can be inwardly directed at the center of the star.

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Pulsing stars were discovered in the 1960s and are called pulsars:

From the conservation of angualr  momentum :

   Li = Lf

I_i w_i = i_f w_f

( 2/5 m R_i^2 ) w_i = ( 2/5 m R_f^2) wf

R_f = R_i sqrt w_i/ w_f

     =2.82 * 10^6 m/s

Momentum is fabricated from the mass of a particle and its velocity. Momentum is a vector amount; i.e., it has both significance and course. Isaac Newton's second regulation of motion states that the time rate of exchange of momentum is equal to the force appearing on the particle.

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The arrival of box and ball at the bottom will depend on the mass of the box as mass of box may be larger than mass of ball.

This is on the grounds that the impact that the frictional force have relies upon the mass, the point likewise have an extraordinary impact in the response, however it appears it's anything but a choice, merits seeing that the mass doesn't have impact in the ball moving given that the erosion is just mindful of the rolling.

The force which becomes possibly the most important factor at whatever point two articles come in touch and slide over one another is known as the frictional force. In easier words, the force which discourages movement while interacting with one more item is known as Rubbing or Frictional force. This force. extraordinarily fluctuates according to the surface of the surface which is in touch.

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