In a krypton laser, find the energy difference between the two levels involved in the production of green light of wavelength 520.8 nm by this system. in eV?

The power series representation for f(x) = 2/(13x) centered at x = 0 is f(x) = 2/13 * (1/x + 0 + 0 + ...), obtained by expressing 1/x as a power series and multiplying it by 2/13.

To find a power series representation for the function f(x) = 2/(13x), we can start by expressing 1/x as a power series. The power series representation for 1/x centered at x = 0 is obtained by expanding 1/x using the geometric series formula. Simplifying the expression, we get 1/x = 1/x + 0 + 0 + ..., as all the terms after the first term are zero.

To obtain the power series representation for f(x), we multiply the series for 1/x by 2/13, resulting in f(x) = 2/13 * (1/x + 0 + 0 + ...). Therefore, the power series representation for f(x) centered at x = 0 is given by f(x) = 2/13 * (1/x + 0 + 0 + ...). This represents an infinite series where the coefficients of the powers of x are determined by the constant term 2/13.

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Answer:

2.9s

Explanation:

When object was dropped from some height, it displacement

h=v_i t+(at^2)/2=(gt^2)/2

So

t=√(2h/g)=√((2×42)/9.8)=2.9 s

O, A, B, C, D points are equally spaced

Let the spacings be say x,

We know that electric force between two charges say Q and q separated by a distance of r is,

So when q is at B, the separation will be equal to 2x,

So when q is at B, the force is say F_B,

When q is at A, the force is say F_A,

Comparing the two we get,

Given

So

Answer:

Explanation:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

λ

:

λ

=

v

f

Let's plug in our given values and see what we get!

λ

=

340

m

s

440

s

−

1

λ

=

0.773

m

Answer:

Hi there!

There are many possible answers!

My best guesses are:

1) Knowing how they work will prevent injury! For example, knowing that the gears twist will stop you from putting your finger in it!

2) Allowing you to use it! Knowing how to line up the edge of the can with the tool will let you use it properly!

Hope this helps

Answer:

8.8 hours

Explanation:

plz give me a Brainliest

Explanation:

GIVEN DATA

since P(momentum)=Mass×Velocity

F = P2 -P1

t

F= Mv2-Mv1

t

F=M( v2-v1) ,(a=v2-v1)

t t

ANSWER EXPLANATION IN WORDS

That question is related to Newton's second law of motion, the question ask you to find the force it gives you a mass and a acceleration As we know that the SI unit of acceleration is newton per kilogram or metre per second square It is correct to write metre per second square instead of Newton Per kilogram because because all of them are the SI unit of acceleration so that is the answer we get 686 Newton by Force .

Answer:

Pretty sure its -4.8%

Explanation:

Others asked this question and got this as an answer.

Answer:

C. –4.8 m/s

Explanation:

I just took the exam.

Distance covered by the squirrel to look for an acorn :

d = ( 3 m/s ) × 10 s = 30 m.

Time taken to eat an Acron is 5 seconds.

Time taken to cover distance of 30 m with 2 m/s speed is :

\(T=\dfrac{30}{2}\ s= 15 \ s\)

Therefore, total time take to  get back to where he started is ( 10+5+15 ) = 30 s.

Hence, this is the required solution.

Answer:

it wont let me commment so i need to know if the answer above is correct

Explanation:

When the distance between two stars decreases by one-third, the force between them increases to nine times as much.

Let's assume the initial distance between the stars is represented by "d." When the distance decreases by one-third, it becomes (2/3)d.

According to the inverse square law, the force between the stars is proportional to 1/d^2. So, initially, the force between the stars can be represented as F0 = k/(d^2), where k is a constant of proportionality.

After the distance decreases to (2/3)d, the force between them becomes F1 = k/((2/3)d)^2

= 9k/(4d^2)

= (9/4)(k/(d^2)).

Comparing F1 to F0, we can see that F1 is (9/4) times F0, which means the force increases by a factor of 9/4 or 2.25 times. Therefore, the correct answer choice is: "Increases to nine times as much."

It is important to note that none of the provided answer choices match the actual behavior described by the inverse square law. The force should increase by a factor of 2.25, not 2 or 9, and it does not decrease by one-third or one-half.

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The Cassini mission observed water ice jets on Enceladus during its flyby of Saturn. The jets are hypothesized to be the result of a global ocean of water beneath the moon's icy surface, which is heated and forced outward by the gravitational pull of Saturn and its other moons.

This process, known as cryovolcanism, is thought to have created fractures in the moon's icy surface, allowing the water to escape as jets. The jets have been observed to reach heights of up to 500 kilometers.

This process could be responsible for providing material for the E Ring of Saturn, and could also be the source of organic materials found on the surface of Enceladus.

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The car needs to stop within 143.8 meters if it is traveling at the same speed as the speed camera.

Distance is a term that describes the measurement of the distance between two things or the length between two places. Different units of measurement, such as meters, kilometers, miles, or feet, can be used to compute distance. It can be used to describe the separation between two points in two-dimensional space or the actual distance between objects in three-dimensional space.

The formula below can be used to determine the minimum stopping distance for the vehicle:

d = v^2 / (2 * a)

where v is the car's starting speed, a is its greatest deceleration, and d is the minimum stopping distance.

We can utilize the time difference between the two photographs and the distance traveled to determine the beginning velocity of the car:

v = d / t

In place of the values, we hold:

v = 14 m / 0.80 s = 17.5 m/s

With the beginning velocity in hand, we can determine the shortest distance needed to stop:

d = v ^2 / (2 * a) = (17.5 m/s)^2 / (2 * 6.35 m/s^2) = 143.8 m

Therefore, the car needs to stop within 143.8 meters if it is traveling at the same speed as the speed camera.

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Answer:

64 ohms =R

Explanation:

R is directly proportional to V

R is inversely proportional to I(Current

Answer:

Explanation:

First of all, I used the specific heat of water as 4182 J/(kgC) and the specific heat of ethyl alcohol (EtOH) as 2440 J/(kgC); that means that we need the masses in kg, not g.

120.g = .1200 kg of ethyl alcohol. Now for the formula:

\(t_f=\frac{(m_{H2O}*spheat_{H2O}*temp_{H2O})+(m_{EtOH}*spheat_{EtOH}*temp_{EtOH})}{(m_{H2O}*spheat_{H2O})+(m_{EtOH}*spheat_{EtOH})}\) where spheat is specific heat.

Filling that horrifying-looking formula in with some values:

\(16.0=\frac{(x*4182*20.0)+(.1200*2440*10.0)}{(x*4182)+(.1200*2440)}\) and

\(16.0=\frac{83640x+2928}{4182x+292.8}\) and

16(4182x + 292.8) = 83640x + 2928 and

66912x + 4684.8 = 83640x + 2928 and

1756.8 = 16728x so

x = .105 kg and the amount of water added is 105 g

The amount of energy of a single photon of light is determined by its frequency.

The Planck-Einstein relation is a fundamental equation that describes the relationship between the energy (E) of a single photon of light and its frequency (f).

where h is Planck's constant, a physical constant with a value of approximately . This equation suggests that the energy of a photon is directly proportional to its frequency. In other words, photons with higher frequencies (such as those in the ultraviolet or x-ray parts of the electromagnetic spectrum) have more energy than those with lower frequencies  (such as those in the infrared or radio parts of the spectrum).

The speed of the photon and the material it moves through can affect its wavelength and therefore its frequency, but they do not directly determine its energy. The time it takes the photon to reach a destination is not directly related to its energy either.

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Answer:

250mn

Explanation:

Answer:

16.2 m/s

Explanation:

2ad=Vf^2-Vi^2

2 (1.5) (40) = Vf^2 -(12)^2

Vf= 16.2 m/s

The velocity of the body is 16.1 m/s.

The rate of motion and direction of an object are measured by a vector known as velocity. Therefore, we need to understand both the magnitude and direction in order to calculate the velocity according to this definition.

For instance, if an object moves at 5 meters per second (m/s) in the direction of the west, its velocity in that direction will be 5 m/s. The most popular and straightforward method for calculating velocity is given in the formula below.

While m/s (meter per second) is the SI unit for velocity, it can also be expressed in any d/t unit (distance per time). Miles per hour (mph), kilometres per second (km/s), and kilometers per hour are a few of the units that can be used to express velocity (kph).

Therefore, The velocity of the body is 16.1 m/s.

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To calculate the distance from the earthquake to the station, divide the arrival times of the P and S waves. Calculate the separation between the initial P and initial S waves. The first P and S waves in this instance are separated by 24 seconds.

The beginning of the earthquake's rupture is where the epicenter of a hypothetical earthquake is situated. The epicenter is the location that is directly above the Earth's surface.

The focal point is the location where an earthquake begins within the crust of the Earth. The epicenter is a location on the surface of the Earth that is directly above the focus.

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Answer: A gravitational pull is keeping the ball in place and not letting it go flying into the air. so simple answer is gravity

Ferroelectricity is the property describes a material that has a spontaneous electric field.

An electric field is the physical subject that surrounds electrically charged particles and exerts force on all different charged debris inside the field, either attracting or repelling them. It also refers to the physical area for a gadget of charged debris.

The field strains in no way intersect every different. The field traces are perpendicular to the floor of the charge. The importance of charge and the range of discipline strains, both are proportional to every other.

The SI unit of the electrical discipline is volts consistent with metre (V/m). This unit is equivalent to Newton's in step with coulomb. These are derived units wherein Newton is a unit of force and Coulomb is the unit of charge.

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Answer:

4 seconds

Explanation:

The frequency of a body is the number of oscillations in one second. It is the number of cycles per unit time. The S.I unit of frequency is the Hertz (Hz).

The period of a body is the time taken to complete one oscillation. The period is inversely proportional to the frequency of the body. It is the reciprocal of frequency and the S.I unit is second (s).

A body oscillates with 25hz. Therefore the frequency (f) = 25 Hz.

The period (T) is given as:

\(Period (T)=\frac{1}{frequency(f)} \\T=\frac{1}{f} =\frac{1}{0.25}=4\\T=4\ seconds\)

Answer:

Wavelength.

Explanation:

1 period, or wavelength, is measured from one crest to another or from one trough to another.

Hello!

Topic: Dinamic

Value to calculate: Force

First, we have to calculate the aceleration, for that, lets aplicate the formula:

\(\boxed{a=\frac{V-Vi}{t} }\)

How the final velocity is in km/h, we have to convert it on m/s, so:

m/s = km/h / 3,6

m/s = 105 / 3,6

m/s = 29,16

Then, lets replace formula according problem information:

\(a = \dfrac{29,16m/s-0m/s}{0,934s}\)

\(a =31,22\ m/s^{2}\)

Now, how we have the aceleration, lets applicate second law of newton for calculate the force produced:

\(\boxed{F=ma}\)

Replace and resolve it:

F = 856 kg * 31,22 m/s^2

F = 26724,32 kg * m/s^2

Then the force is of 26724,32 kg * m/s^2

But how we know an 1 kg * m/s^2 = 1 N

Then the average of the force is of 26724,32 N  

(1) The change in momentum of race car is 89880 kg-km/h.

(2) The average force exerted on the car is of 96231.26 N.

Given data:

The mass of race car is, m = 856 kg.

The initial speed of car is, u = 0 km/h.

The final speed of car is, v = 105 km/h.

The time interval is, t = 0.934 s.

1)

The change in the impact due to average force is known as momentum change. The expression for the change in momentum is given as follows,

\(\Delta P = m(v-u)\)

Solving as,

\(\Delta P = 856 \times (105-0)\\\\\Delta P = 89880 \;\rm kg.km/h\)

Thus, we can conclude that the change in momentum of race car is 89880 kg-km/h.

2)

Now, use the concept of impulse-momentum which says that the impulse is equal to change in momentum. Which means,

\(I = \Delta P\)

And impulse is,

\(F \times t = \Delta P\\\\F = \dfrac{\Delta P}{t}\)

Solving as,

\(F = \dfrac{89880}{0.934}\\\\F = 96231.26 \;\rm N\)

Thus, we can conclude that the average force exerted on the car is of 96231.26 N.

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Let a, b, c be the coefficients in the balanced reaction,

a P₄O₁₀ + b H₂O   ⇒   c H₃PO₄

Count the number of each atom on either side of the reaction:

• P : 4a = c

• O : 10a + b = 4c

• H : 2b = 3c

Suppose a = 1. Then from the first equation,

c = 4•1   ⇒   c = 4

and from the third equation,

2b = 3•4 = 12   ⇒   b = 6

The third equation is also satisfied:

10a + b = 4c   ⇒   10•1 + 6 = 4•4   ⇒   16 = 16

So, the balanced reaction is

P₄O₁₀ + 6 H₂O   ⇒  4 H₃PO₄

which makes D the correct answer.

Answer:

the last one

Explanation:

its the sun when the earth turns towards the sun it gives us heat not solar radiation.

Therefore, the mmf when the machine operates at rated voltage at no-load is zero while at full load it's also zero.

Given that:

Power output of the generator (P) = 110 kW

Voltage (V) = 200 V

Number of turns in the shunt field (Ns) = 2000

Number of turns in the series field (Nse) = 5

Shunt field resistance (Rs) = 105 Ω

At no-load, current is zero, so field current will also be zero.

Therefore, shunt field mmf is zero.

At full load,

Ifarmature= P / V

= 110 kW / 200 V

= 550 A

Let, the current in the shunt field is I field

At full load, the current through the series field is same as that of the armature current.

So,

NseIs= 5 × 550

        = 2750 A

Total shunt field resistance = Rs

                                            = 105 Ω

Shunt field mmf = I field × Ns

And, Shunt field current can be calculated using the following equation:

V = I field Rs + Ebs

Where,

Ebs is the back emf in the shunt field

At full load, the back emf in the shunt field is equal to the rated voltage of the generator i.e. Ebs = V = 200 V

Substitute the values to get I field:

I field × Rs + Ebs = VI field × Rs + 200

                           = 200

I field × Rs  = 0

I field = 0 / 105

= 0 Amps

Therefore, Shunt field mmf at full load, mmax = 0 × 2000 = 0

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Answer:B

Explanation:

.03 of an hr is 2 mins and if it takes 2 mins to drive 4 miles enter it in pace calulator you are going 120mph so the closest to 120 is 133mph

The kid is breaking the speed limit of 45 miles/hr since he is going at 133.3 miles/hr.

Speed is the ratio of distance travelled to time taken. It is given by:

Speed = distance / time

Since the distance to the mall is 4 miles, the time taken is 0.03 hours, hence the speed is:

Speed = distance / time

Speed = 4 miles / 0.03 hours

Speed = 133.3 miles/hr

Hence the kid is breaking the speed limit of 45 miles/hr since he is going at 133.3 miles/hr.

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Answer:

The reading will be the same.

Explanation:

Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.

Giving me the brainest will be helpful.

The reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.

A weighing scale known as a balance is a device used to quantify weight or mass. The classic scale is made up of two plates or bowls that are suspended at equal distances from a fulcrum.

A person with a mass of 70kg is standing on a scale in an elevator suddenly the cable snaps, The reading on the scale during free-fall will be the same as the initial elevator condition.

Hence the reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.

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Answer:

.5 m N

Explanation:

Displacement just means distance from starting point, so moving 3 m north then 2.5 m south is the same as if you took 3 steps forward then 2.5 steps backward. The end point is only .5 away from the start point.

The displacement of a hiker if he travels 3.0 m N and then 2.5 m S is 0.5 m.

It is given that the hiker travels 3.0 m North and then 2.5 m South.

It is required to find the displacement of a hiker.

What is the displacement of a hiker if he travels 3.0 m N and then 2.5 m S?

As we know the displacement is the shortest distance acquired by the body or simply we say that difference between the initial and the final point of the body.

From the given question the hiker moves 3.0 m in the north that is in upward direction and from the same point the hiker comes back 2.5 m in south that is downward at the same line. To find the displacement,

Displacement = Final Point - Initial Point

Displacement = (3.0 - 2.5)m = 0.5 m

Thus, the displacement of a hiker if he travels 3.0 m North and then 2.5 m South is 0.5 m.

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