Can someone explain the total probability for the photoemmission process? Explain what each equation does and how can you change its probability?
I am not particularly sure about the statement I made at the bottom.
for insitance, increasing the density of state would increase the creation of photoelectron as there is more electron.
maybe, Increasing the photon energy, this would increase the kintetic energy of electron with high mean free path. But high energy photon would penetrate deeper into the solid.
Maybe chaning the angle of photon. if we could reduce the angle between the electron ejection and normal to the surface, it would have greater momentum. This would increase photoelectron into vaccum probability?
Three steps process or model The total probability for the photoemission process can be written as, P(EK​,hv)T(EK​,hv)D(EK​). Probability of photoexcitation of an electron inside the solid. ∑f,j​∣⟨f∣A⋅pj​∣i⟩∣2δ(Ef​(N)−Ei​(N)−hv),Ef​(N)=EK​+ϕ+Ef​(N−1)​ - Travel of photoelectron to the sample surface T(EK​,hv)=1+α(hv)λmp​(EK​)α(hv)λmp​(EK​)​≃α(hv)λmp​(EK​). - Emission of the photoelectron into vacuum D(EK​)=21​(1−EK​+V0​V0​​​).

Answer:

100

Step-by-step explanation:

As stated, the interior angles formed by the sides of a hexagon have measures that sum to 720°.

To find the measure of angle A, we first need to find value of x:

110 + 120 + 130 + x-40 + x-60 + x-20 = 720 add like terms

3x + 240 = 720 subtract 240 from both sides

3x = 480 divide both sides by 3

x = 160 now replace x with 16 to find angle A

x-60 is 160 - 60 = 100

Answer:

See below

Step-by-step explanation:

4x + 5y = -2

-5 -5

4x = -5y - 2

4x/4 = -5y -2/ 4

x = -5/4 y + -1/2

Answer:

k=10

Step-by-step explanation:

4k + 12= 52

minus 12 on both sides

4k=40

now divide by 4

k=10

Step-by-step explanation:

Let's assume that Dan takes x hours to complete the job alone.

Working together, Dan and Joan can complete the job in 6 hours. Therefore, their combined work rate is:

1 job / 6 hours = (1/x job/hour) + (1/7 job/hour)

Simplifying this equation, we get:

1/6 = (7+x)/7x

Multiplying both sides by 7x, we get:

x + 7 = 42

Therefore, x = 35 hours.

This means that Dan would take 35 hours to complete the job alone.

The set \(S\) contains all complex numbers in the complex plane, and its area is infinite.

The given condition is \(\left| \frac{z}{z} \right| \leq 2\), which can be simplified to \(\left| 1 \right| \leq 2\). Since the absolute value of 1 is always equal to 1, the inequality holds true for all complex numbers \(z\) in the complex plane.

In other words, for any complex number \(z\), the expression \(\left| \frac{z}{z} \right|\) simplifies to 1. Therefore, the condition \(\left| \frac{z}{z} \right| \leq 2\) is always satisfied.

As a result, the set \(S\) includes all complex numbers in the complex plane. Since the complex plane extends infinitely in all directions, the area of \(S\) is infinite.

In conclusion, the set \(S\) contains all complex numbers in the complex plane, and its area is infinite.

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On a sonar scale, your competitor is at 7.5 and the treasure is located at -5 then 37.5 meters units away from the treasure is your competitor in a decimal form.

Co-ordinates

A pair of numbers that describe the position of a point on a coordinate plane by using the horizontal and vertical distances from the two reference axes. Usually represented by (x,y) the x-value and y-value.

Circumference

If a boy starts running from point 'A' and reaches the same point after taking one complete round of the park, a distance is covered by him. This distance or boundary is called the circumference of the park which is in the shape of a circle. The circumference is the length of the boundary.

Multiply the number of cm by the number of meters each em represents to get the total meters distance he is away from the treasure:

7.5 x 5 = 37.5 meters

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A/an database schema diagram can be used to show how the tables in a database are defined and related.

This type of diagram provides a visual representation of the structure and organization of the database. It illustrates the tables ,and  their attributes, and the relationships between them.

The database schema diagram helps in the  understanding the logical design of the database, including primary keys, for  foreign keys, and the connections between different tables. It allows developers, database administrators, and stakeholders to visualize the database structure and serves it as a reference for in  designing, modifying, and querying the database effectively.

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Rounding to the nearest tenth of a centimeter, the height of the rectangular prism is approximately 17.5 cm.

To find the area of a rectangular prism, you need to calculate the combined surface area of all six faces. A rectangular prism has three pairs of congruent faces, where each pair consists of opposite faces.

The formula to calculate the surface area of a rectangular prism is:

Surface Area = 2lw + 2lh + 2wh

Where:

l is the length of the rectangular prism

w is the width of the rectangular prism

h is the height of the rectangular prism

To determine the height of the rectangular prism, we can use the formula for the volume of a rectangular prism:

Volume = Length * Width * Height

Given that the base area is 64 cm² and the volume is 1120 cm³, we can find the height by dividing the volume by the base area:

Height = Volume / Base Area

Height = 1120 cm³ / 64 cm²

Height = 17.5 cm

Rounding to the nearest tenth of a centimeter, the height of the rectangular prism is approximately 17.5 cm.

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At the perpendicular bisector of any line

XY and the bisector of any angle XYZ, the correct option is A. The locus of points equidistant from lines XY and YZ.

Angle bisector is a locus or set of points that bisects an angle and is equidistant from two intersecting math that create an angle

The perpendicular bisector is a set of points that bisects a line generated by Linking two points and are equidistant from two points.

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Answer:

the answer is 7/15

Step-by-step explanation:

you could be nice and make me brainliest

Answer:

7/15

Step-by-step explanation:

hope that helps

We can see that the congruency of the triangle can be under ASA

What is congruency under ASA?

If two triangles meet the ASA (Angle-Side-Angle) condition, they are congruent. Two triangles must satisfy the conditions listed below in order to be congruent under ASA:

Angles in two different triangles are equal to each other by a factor of two.

The side that lies between the two equal angles of one triangle, known as the included side, also appears in the other triangle.

Thus the triangles that have been shown in the image are congruent under ASA.

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Explanation

Scientific notation is a way to write very large or very small numbers so that they are easier to read and work with, a number in scientific notation has the form

now, to convert a number to scientific notation we need

Step 1

a)place or move the decimal point of a number until the coefficient of the number is greater than 1 and less than 10.

so

b)now, count the number of digits you need to move the beginning decimal to get to where your decimal is now. If you move the decimal to the left, then your power is positive.

so, 4 units to left, positive exponent

c)now, rewrite the number

let

hence

therefore, the answer is

I hope this helps you

Answer:

x = 1/5

Step-by-step explanation:

yeah-ya........ right?

Answer:b

Step-by-step explanation:

(-2,3) is the point of intersection of AB and CD is denoted by M.

When two lines or more than two lines cross each other in a plane, this is called the intersection of lines, and the lines are called intersecting lines. They have a common point called the point of intersection.

Given that, the points A (-4,4), B (6,-1), C(0,5) and D (-5,0) on a Cartesian plane. Join A and B. Join C and D. And then we have to write down the co-ordinates of the point of intersection of AB and CD.

The graph of the following information is shown as below.

And the coordinates of point of intersection of AB and CD is denoted by M.

From the graph the coordinates of point of point of intersection of AB and CD is (-2,3) respectively.

Hence, (-2,3) is the required answer.

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The domain of g(t) = V1 – gt is [0, 1/8).

To find the domain of a function, we need to determine the values of the independent variable for which the expression defining the function is valid. In this case, the function is g(t) = 1 - gt, and we are given that 8t ≤ 1. Solving for t, we find that t ≤ 1/8.

This means that any value of t that satisfies 0 ≤ t ≤ 1/8 is in the domain of the function g(t). We can write this interval in interval notation as [0, 1/8].\

Therefore, the domain of the function g(t) is the closed interval (0, 1/8], which includes both endpoints since they are valid values of t that make the expression for g(t) defined.

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Answer:

the answer is 100:60:40 hope it helps

AB and YX are corresponding sides, BC and XZ are corresponding sides, and AC and YZ are corresponding sides of given triangle.

What is triangle?

A triangle is a two-dimensional geometric shape that has three sides, three angles, and three vertices. It is one of the simplest polygonal shapes and is commonly studied in geometry.

Since we have:

∠A ≅ ∠Y

∠B ≅ ∠X

∠C ≅ ∠Z

We can conclude that the two triangles ABC and XYZ are similar by the Angle-Angle (AA) similarity theorem.

Therefore, the corresponding sides of the two triangles are proportional to each other. We can write this as:

AB : YX = BC : XZ = AC : YZ

where AB and YX are corresponding sides, BC and XZ are corresponding sides, and AC and YZ are corresponding sides.

In other words, the ratio of the length of each side in triangle ABC to the corresponding side in triangle XYZ is constant.

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Answer: x/3

Step-by-step explanation:

 5x²y/15xy

=x²y/3xy ⇔ divide 5 on both sides

=x²/3x ⇔ eliminate y

=x/3 ⇔ divide x on both sides

Hope this helps!! :)

Please let me know if you have any question

Step-by-step explanation:

\( \tan(x \degree) = \frac{54}{32} \\ = \frac{3}{4} \\ x \degree = { \tan}^{ - 1} ( \frac{3}{2} ) \\ = 56.3 \degree\)

Answer:

Step-by-step explanation:

It is asking for the "mode" which is the data element you see the most, therefore it is 2.

Answer:

B

Step-by-step explanation:

Answer:

746.4

Step-by-step explanation:

Answer:

he can buy 4 sheets of paper to print 16 pages

he will have 0.10 cents left

Step-by-step explanation:

With each piece of paper, he can print 4 pages

He has a full dollar

1/0.25 = 4

he can print 4 pages because the last 10 cents will not be enough to print another page

4 * 4 = 16

He will not be able to print all the pages

Answer:

Step-by-step explanation:

a. 45mph

135miles ÷ 3hrs = 45mph

b. 44mph

22m x 2 = 44mph

c. 30mph

1/4 = 15 mins

7.5mins x 4 = 30mph

d. 50mph

100/3 miles = 2/3hr

xmiles (x = number of miles) = 1h

we use cross multiplying and use x to find the miles

2x  = 100 x 1

3        3

2x = 100

x = 50mph

e. 65mph

speed = 97.5 miles half an hour

The answer is the aqua choice (2) x=3.

We can cross out the first choice (blue): y=3 and the fourth choice (red): y=-3. Because these two choices would form a horizontal line across the y-axis. If it is a vertical line, the equation should be x=#. And because the line crosses at 3, the answer is x=3 and not x+-3.

Hope this helped!

Answer:

Step-by-step explanation:

1 =0.408

2=−30.004

3=−9.522

4= 33.54 pounds of soil are needed

5= b -2.76

1. Multiply (-6.8) * (-0.06) = 0.408

2. Multiply 11.54 * (-2.6) = -30.004

3. Multiply (-2.07) * (4.6) = -9.502

4. The garden needs 33.54 pounds of soil.

5. Multiply a). -27.6

When we multiply two numbers, we are essentially adding one of them multiple times based on the value of the other number. Let's go through each problem step by step.

1. To multiply -6.8 and -0.06, multiply their absolute values

  (ignoring signs): 6.8 * 0.06 = 0.408.

Since both numbers are negative, the product is positive:

(-6.8) * (-0.06) = 0.408.

2. For 11.54 * (-2.6), multiply their absolute values:

11.54 * 2.6 = 30.004.

One number is negative, so the product is negative:

11.54 * (-2.6) = -30.004.

3. Multiply the absolute values of -2.07 and 4.6: 2.07 * 4.6 = 9.502.

The numbers have different signs, so the product is negative: (-2.07) * (4.6) = -9.502.

4. The area of the garden is 12.9 square feet, and each square foot requires 2.6 pounds of soil.

To find the total soil needed, multiply: 12.9 * 2.6 = 33.54. Therefore, the garden needs 33.54 pounds of soil.

5. To multiply 2.3 and -1.2, multiply their absolute values: 2.3 * 1.2 = 2.76. Since one number is negative, the product is negative: 2.3 * (-1.2) = -2.76, which matches option a.)

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Option D) is correct. The equation representing the above sequence is   f(x) = f(x-1) - 6.

According to the question we have been the sequence

                             2, -4, -10, -16,.......

Here,  a₁ = 2                        a₃ = -10

        a₂ = -4                        a₄ = -16

Thus, difference between the first two terms is:

         d = a₂ - a₁

            = -4 - 2 = -6

Similarly difference between the second third term is :

            d = a₃ - a₂ = -10 - (-4) = -10 + 4 = -6

We will see that the difference between the terms is constant that is

                    d = -6

We know that ,   aₙ = aₙ₋₁ + d

putting the value of d in the above formula we get

     aₙ = aₙ₋₁ + (-6)

     aₙ = aₙ₋₁ -6

Also can be written as :

  f(x) = f(x-1) - 6

That is option D) is correct. The equation representing the above sequence is   f(x) = f(x-1) - 6.

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The square for the equation x^2+4x-6=0, we need to add and subtract (b/2)^2, where b is the coefficient of x. In this case, b=4, so we have:
x^2+4x-6+4-4=0+4-4

Now we can add 10 to both sides to isolate the squared term:
(x+2)^2=10
we can take the square root of both sides, remembering to include both positive and negative roots:
x+2=±√10
Subtracting 2 from both sides gives the two solutions:
x=-2±√10

Therefore, the solutions to the equation x^2+4x-6=0 are x=-2+√10 and x=-2-√10.

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