show answer No Attempt 50% Part (b) Calculate the non-relativistic speed of these electrons v in m/s.

Answers

Answer 1

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is  [tex]v = 9.18 *10^{6} \ m/s[/tex]

Explanation:

From question we are told that

  The potential  difference is  [tex]\Delta V = 0.24 kV = 0.24 *10^{3} \ V[/tex]

Generally the the non-relativistic speed of these electrons  is mathematically represented as

       [tex]v = \sqrt{\frac{2 * e * \Delta V}{m} }[/tex]

Here  m is the mass of an electron with value [tex]m = 9.11 *10^{-31 } \ kg[/tex]

           e  is the charge on an electron with value  [tex]e = 1.60 *10^{-19} \ C[/tex]

So

        [tex]v = \sqrt{\frac{2 * 1.60 *10^{-19} * 0.24 *10^{3} }{9.11*10^{-31}} }[/tex]

=>   [tex]v = 9.18 *10^{6} \ m/s[/tex]


Related Questions

What is the correct order of organization from smallest to largest?

a.Tissues, cells, organs, organism, organ system
b.Cells, organs, tissues, organ system, organism
c.Organs, tissues, organ system, cells, organism
d.Cells, tissues, organs, organ system, organism

Answers

Answer:

D

Explanation:

Cells are the smallest unit of organizaiton, followed by tissues, organs, organ systems, and then organisms themselves.

A ball is dropped from a 19m high cliff. The acceleration on the ball was 9.8m/s². What was the ball's final velocity before hitting the ground?

Answers

Answer:

19.3 m/s

Explanation:

Take down to be positive.  Given:

Δy = 19 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: v

v² = v₀² + 2aΔy

v² = (0 m/s)² + 2 (9.8 m/s²) (19 m)

v = 19.3 m/s

Are renewable resources always renewable, or can they become non-renewable

Answers

Answer:

Can become non-renewable but it depends on the object

Explanation:

Answer:

Renewable resources are so abundant or are replaced so rapidly that, for all practical purposes, they can't run out. Fossil fuels are the most commonly used non-renewable resources

Explanation:

Hope this helps (:


Select the correct answer from each drop-down menu.
Rocky metallic objects found between the orbits of Mars and Jupiter are(drop down). The largest known of these is(drop down).

Answers

Answer:

Blank 1 (asteroids)

Blank 2 (Ceres)

Explanation:

Rocky metallic objects found between the orbits of Mars and Jupiter are asteroids The largest known of these is ceres.

What are asteroids?

Asteroids are stony elements that circle the Sun. Although asteroids circle the Sun in the same way as planets, they are considerably smaller.]

A dwarf planet located between Mars and Jupiter in the asteroid belt. Ceres was the first asteroid discovered, it was originally classed as a planet,

Rocky metallic objects found between the orbits of Mars and Jupiter are asteroids The largest known of these is ceres.

The correct option from the drop-down menu is asteroids and ceres.

To learn more about the asteroids refer to the link;

https://brainly.com/question/19161842

Question 5 of 10
Two hockey pucks, each with a mass of 0.15 kg, slide across the ice and
collide. Before the collision, puck 1 is moving 14 m/s to the west and puck 2
is moving 10 m/s to the east. After the collision, puck 1 is moving at 10 m/s
to the east. What is the velocity of puck 2?
A. 14 m/s east
B. 10 m/s west
C. 10 m/s east
D. 14 m/s west

Answers

Answer: D. 14 m/s west

Explanation:

I just did it on A p e x

Which statement describes earthquakes?
They release energy
They are caused by reduced stress in rocks
They begin at the epicenter
The result for movement on earth’s surface

Answers

Answer:

they release energy  

Explanation:

An earthquake is the abrupt release of energy from the earth's crust that causes the earth's surface to shake . Thus , seismic waves are produced. The kind and severity of an earthquake are based on the local seismic activity . therefore the correct answer is option A.

What is the equator?

The Equator is an imaginary line passing through the middle of a globe. It is equidistant from the North Pole and the South Pole, Its is a horizontal line residing at 0 degrees latitude .

An earthquake is the abrupt release of energy from the earth's crust that causes the earth's surface to shake . Thus, seismic waves are produced. The kind and severity of an earthquake are based on the local seismic activity .

Thus, the correct answer is option A .  

To learn more about the equator here , refer to the link given below ;

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#SPJ6

A force of 50n is applied to an object at an angle of 50 degrees measured relative to the horizontal. Determine the horizontal and vertical components of the applied force?

Answers

Answer:

Fx = 32.14 [N]

Fy  = 38.3 [N]

Explanation:

To solve this problem we must decompose the force vector, for this we will use the angle of 50 degrees measured from the horizontal component.

F = 50 [N]

Fx = 50*cos(50) = 32.14 [N]

Fy = 50*sin(50) = 38.3 [N]

We can verify this result using the Pythagorean theorem.

[tex]F = \sqrt{(32.14)^{2}+ (38.3)^{2}} \\F = 50 [N][/tex]

An area that has been re-colonized after an environmental disturbance has undergone ____________. Group of answer choices Stratification Zonation Primary Succession Secondary Succession

Answers

Answer:

Secondary succession

Explanation:

Secondary succession is one of the two major types of ecological successions (the other being primary succession). Succession, generally, is characterized by the series of changes that occurs to an ecological community within a period of time.

However, secondary succession occurs when an already colonized area (with soil formed) becomes disturbed by environmental disasters or occurrences, leading to the recolonization of the area by certain organisms. Therefore, an area that has been re-colonized after an environmental disturbance has undergone SECONDARY SUCCESSION.

If the force from the tibia on the femur illustrated below was 1000 N acting at 30° to the femur,
what are the components of this force Fs and Fl:
1000 N
F
300

Answers

Answer:

tibia would be 100N x 300

Explanation:

Please help me if you know physics

Answers

Answer:

  19.  down

  20.  True

Explanation:

The examples I saw were projectiles launched at different angles and speeds. In each case, the only acceleration was ...

  19:  down

  20:  due to gravity (true)

A vector is 9.55m long and points in a -48.0 degree direction. find the x component​

Answers

Answer:

x=6.39 m

Explanation:

Rectangular Components of a Vector

Vectors can be expressed in several forms, including the magnitude-angle form, and the rectangular-coordinates form.

If the magnitude r and angle β are given, we can find the rectangular coordinates (x,y) as follows:

[tex]x=r\cos\beta[/tex]

[tex]y=r\sin\beta[/tex]

The vector of the question has a magnitude of r=9.55 m and an angle β=-48°. The x-component is:

[tex]x=9.55\cdot\cos(-48^\circ)[/tex]

Using a digital calculator:

x=6.39 m

x component = 6.39y component = -7.09formulas:x = r * cos * βy = r * sin * βplug in numbers:x = 9.55 * cos (-48°)y = 9.55 * sin (-48°)

Calculate the maximum energy that a 3-MeV alpha particle can transfer to an electron in a single collision.

Answers

Answer:

The maximum energy that can be transferred to an electron in a single collision of alpha particle is 1.63 keV

Explanation:

let mass of electron, Me = 1

let mass of proton, Mp = 1836Me = 1836

let mass of alpha particle, Ma = 4Mp = 7344

The maximum energy that can be transferred to an electron in a single collision is given by;

[tex]Q_{max} = \frac{4mME}{(M+m)^2}\\\\Q_\alpha_{max} = \frac{4(1)(7344)(3\ MeV)}{(1+7344)^2} = 0.00163 \ MeV = 1.63 \ KeV[/tex]

Therefore, the maximum energy that can be transferred to an electron in a single collision of alpha particle is 1.63 keV

Consider two current-carrying circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other. If the magnetic field strength at the center of the smaller loop is B, what is the magnetic field strength at the center of the larger loop

Answers

Explanation:

The magnetic field at the center of a current-carrying circular loop is given by :

[tex]B=\dfrac{\mu_o I}{2r}[/tex]

Where, I is current and r is radius of loop

We have, two current-carrying circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other.

For smaller loop, the magnetic field is B (with radius r)

For larger loop, let the magnetic field be B' (with radius r', r'=2r). So,

[tex]B'=\dfrac{\mu_o I}{2r'}\\\\B'=\dfrac{\mu_o I}{2(2r)}\\\\B'=\dfrac{1}{2}\times \dfrac{\mu_o I}{2r}\\\\B'=\dfrac{1}{2}B[/tex]

Hence, the magnetic field strength at the center of the larger loop is half of the magnetic field strength at the center of the smaller loop.

Which of the following fields can only exist in one direction?

Answers

It’s B hope it helps

I need helpppppppppppppppppp!

Answers

Answer:

i think its B

Explanation:

but check it before do it  

Answer:

A

Explanation:

Hope it helps I tried looking for think I found it hit the heart pls

please answer please please


Physics ​

Answers

Answer:

  about -1.26 m/s²

Explanation:

The acceleration can be found from the formula ...

  a = (v2² -v1²)/(2d)

Here, we have the initial velocity v1=23 m/s, the final velocity v2=0, and teh distance d=210 m. Using the formula, we find the acceleration to be ...

 a = (0 -23²)/2(210) ≈ -1.2595 . . . m/s²

2
A crane has an arm to which is attached a frictionless pulley. A cable passes over the pulley and
supports a load of 10 kN as shown.
frictionless pulley
104N
30
30°
crane arm
load
10 KN
The crane arm exerts a force F on the pulley.
What is the value of F?
C
8.7 KN
10 KN
D
A
17 kN
B
5.0 KN

Answers

Answer:

17kN

Explanation:

The force of 10 kN in the cable and the load of 10 kN both have a component along the crane arm.

The force F exerted by the crane arm on the pulley is the sum of these 2 components.

Component of force in cable along the crane arm = 10 cos 30°

Component of load along the crane arm = 10 cos 30°

Considering the forces on the pulley,

F = 10 cos 30° + 10 cos 30°

Force F = 17.32 kN = 17 kN

Perception of color is determined by the wavelength of light that an object reflects
Please select the best answer from the choices provided
T
Or
F

Answers

Answer:

True

Explanation:

hope I could help :)

Answer:

true

Explanation:

i know my stuff

What is the frequency (n, in Hz) of the photons emitted by a He-Ne laser with a wavelength (l) of 632.8 nm

Answers

Answer:

4.741 × 10¹⁴ Hz

Explanation:

Step 1: Given data

Wavelength of the He-Ne laser (l): 632.8 nmFrequency of the He-Ne laser (n): ?Speed of light (c): 3.000 × 10⁸ m/s

Step 2: Convert "l" to meters

We will use the conversion factor 1 m = 10⁹ nm.

632.8 nm × (1 m / 10⁹ nm) = 6.328 × 10⁻⁷ m

Step 3: Calculate the frequency of the He-Ne laser

We will use the following expression.

c = l × n

n = c / l

n = (3.000 × 10⁸ m/s) / (6.328 × 10⁻⁷ m)

n = 4.741 × 10¹⁴ s⁻¹ = 4.741 × 10¹⁴ Hz

need help ASAP. please and thank you ​

Answers

I believe the correct answer is 9

When an atom gains or loses electrons, it has an electrical charge. It is known as

Answers

Answer:

ion

Explanation:

Atoms can gain or lose making them no longer neutral they become charged and it is called ion.

The barren-ground caribou shown below is a large herbivore that lives in a subarctic climate near Yellowknife, Canada. Which of these is NOT an adaptation found in caribou?
A. Caribou have wide feet to help them avoid sinking into deep snow.
B. Caribou can digest a diet of grasses, twigs, and mushrooms.
C. Caribou can hold their breath for up to nine minutes underwater.
D. Caribou migrate between a summer location with abundant food and a winter location where conditions (weather, food, snow cover) are more favorable.

Answers

Answer:

C - Caribou can hold their breath for up to nine minutes

Explanation:

The other three are true.

The statement which is NOT an adaptation found in Caribou is:

C. Caribou can hold their breath for up to nine minutes underwater.

According to the given question, we need to find the adaptation which is false from the answer choices about the large herbivore called Caribou.

As a result of this, the adaptation which cannot be found in Caribou is the statement that Caribou can hold their breath underwater for up to nine minutes which is false.

Therefore, the correct answer is option C

Read more here:

https://brainly.com/question/15996015

If I kick a ball off the top of a mountain cliff, will it take longer to hit the ground than if I just drop it? Explain your answer. Your answer:

Answers

Answer:

they will drop at the same time

Explanation:

projectile motion consists of two components, horizontal and vertical, which are independent of one another. That means that if you drop a ball and kick another one straight out, they will both hit the ground at the same time so long as they have the same initial drop height .

10. The electron dot diagram for the element Ne would have ​

Answers

Answer:

2,8

Explanation:

The first electron shell would have 2 electrons, the second shell would have 8 electrons. This is because Neon has a relative charge of 10.

Organ system that is responsible for breaking down food

a.Digestive
b.Respiratory
c.Circulatory
d.Nervous

Answers

Answer:

A. Digestive

Explanation:

Answer:

digestive system

Explanation:

since the digestive system secretes enzymes like amylase,lipase etc. required by the body for the proper breakdown of food.

The table represents the speed of a car in a northern direction over several seconds. Column 1 would be on the x-axis, and Column 2 would be on the y-axis. Which best lists the titles of each column? Column 1 0 2. 4 6 8 10 Column 2 5 10 15 20 25 30 O Column 1 should be titled "Time," and Column 2 should be titled "Velocity." O Column 1 should be titled "Velocity," and Column 2 should be titled "Time." O Column 1 should be titled "Time," and Column 2 should be titled "Acceleration." O Column 1 should be titled "Acceleration," and Column 2 should be titled "Time."​

Answers

Answer is A hope this helps luv

Answer:

Column 1 should be titled “Time,” and Column 2 should be titled “Velocity.”

Explanation:

After a wave passes through a medium, particles in the medium
are permanently displaced in a direction opposite to the direction of the wave
remain in the new location
are moved along with the wave
return to the original position

Answers

Answer:

D. Return to the original position

Explanation:

I took the test

A placekicker kicks a football at and angle of 40.0 degrees and the initial speed of the ball is 22 m/s. Ignoring air resistance, determine the maximum height that the ball attains.

Answers

Answer:

10.18m

Explanation:

in this problem, we are expected to solve for the maximum height of a projectile (the ball)

Firstly, the expression for maximum height is

h = u ^2 *sin ^2 θ /2 g

Given data

initial velocity u=22m/s

angle of projection, θ= 40degrees

substituting into the expression we have

h = 22^2 *sin (40)^2 /2 *9.81

h = 484*0.413 /19.62

h =199.892 /19.62

h=10.18m

The maximum height is 10.18m

The maximum height attains by ball is 48.64 meter.

The maximum height is given by using formula,

                  [tex]h=\frac{u^{2}*sin2\theta }{g}[/tex]

Where u is initial velocity, and value of [tex]g=9.8m/s^{2}[/tex]

Given that,   [tex]u=22m/s,\theta=40,g=9.8m/s^{2}[/tex]

Substituting above values in formula.

             [tex]h=\frac{(22)^{2}*sin80 }{9.8} =\frac{484*0.98}{9.8} =48.64m[/tex]

Hence, the maximum height attains by ball is 48.64 meter.

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https://brainly.com/question/20689870

PLEASE HLEP ME ASAP

Tom, a 13 year old boy, wants to train for a 5k Fun Run that his school is organizing. What area of fitness should Tom focus on? What activities should he do to improve this area?

Answers

Answer:

cardiovascular endurance

Explanation:

In order for Tom to successfully complete the marathon, he should focus on being able to maintain a constant pace without tiring easily.

an airplane travels down a Runway at 1500 m in 17s what is the average speed

Answers

Answer:

88.23 m/s

Explanation: The equation for speed is s=d/t so in other words, speed equals distance over time so the distance is 1500 and the time is 17 seconds so you just devide 1500 by 17 and you get the speed. Remember to include your unit m/s after your answer

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What is the product? Read the lines below from Phillis Wheatley's poem "His Excellency General Washington."See mother earth her offspring's fate bemoan,And nations gaze at scenes before unknown!What type of figurative language does Wheatley use in these lines, as well as in most of her poems?A. allusionB.hyperboleC.simileD.personification Can u solve this easy question Analysis of Accounts Receivable and Allowance for Doubtful Accounts Steelcase, Inc. reported the following amounts in its 2014 and 2013 10-K reports (years ended February 28, 2014 and February 22, 2013). $ millions) From the income statement Net sales From the balance sheet Accounts receivable, net Customer deposits From the disclosure on allowance for doubtful accounts: Balance at beginning of period Additions (reductions) charged to income Adjustments or deductions Balance at end of period 2014 2013 $2,989 $2,869 306.8 287.3 16.0 13.5 4.5 19.6 2.8 3.1 (4.3) (8.2) 13.0 14.5 b. Calculate Steelcase's gross receivables for the years given, and then determine the allowance for doubtful accounts as a percentage of the gross receivables. 2014 2013 Gross accounts receivable (in millions) Allowance as a % of gross receivables Round to one decimal place.) c. Calculate Steelcase's accounts receivable turnover for 2014. (Use Accounts receivable, net for the calculation.) Round answer to one decimal place times d. How much cash did Steelcase receive from customers in 2014? 3,005 million Please helpppppp Question 1Which of the following is the best definition of an inference?the main idea of a passagea way to organize writinga detail in a storyO a logical guess based on clues 1. What were parents told during the early years of the euthanasia program? 715,000___7.15 x 10^5 > < = WILL MARK BRAINLEST Phillp and Arnold are helping their teacher buy supplies for a research project. The teacher gave Phillip $39.00 to buy pencils from the school store. The pencils come in boxes of 12 and cost $1.95 per box.Arnold was given $48.00 to buy index cards at an office supply store. Index cards are sold in packs of 200 cards and cost $4.80 per pack.Each student will receive a bag containing three pencils and 25 index cards. How much will each bag cost? Part A. Create an equation to model how many boxes of pencils Phillip can purchase. Solve the equation. (5 points)Part B: How many pencils was Phillip able to purchase? (5 points)Part C: Create an equation to model how many packs of note cards Arnold can purchase. Solve the equation. (5 points)Part D: How many note cards was Arnold able to purchase? (5 points)Part E. In a complete sentence, answer how many bags of 3 pencils and 25 note cards can Arnold and Phillip create (5 points). Which one is correct a or b ? (I made this up teehee) what anime is katski bakugo from What is the function of an analogy in an informational text?A.to explain a concept through comparisonB.to contrast a concept with something elseC.to provide a vivid image with figurative languageD.to provide description through sensory detail Please help me be right! Ordered pairs Which of the following required freedmen to know certain sections of the constitution in order to vote solve for x and y -48 = 2x - 8yfind the two coordinates Delegates writing the Articles of Confederation which event occurs during the falling action in roll of thunder hear my cryA.After the fire is extinguished, papa explains what happened to TJB. TJ, RW, and Melvin Rob Mr. Barnetts store in strawberryC. Papa and Mr. Granger work together to put out the fireD. Mr. Jamison shows up at the Avery home to help DJ What is the antebrachial? Choose all the answers that apply.Muscles in the small intestine are _____.smoothstriatedinvoluntaryvoluntarycardiacPls pick multiple explain and give an example of how "power to a power" rule is different from "Multiplying powers" rule. John took all his money from his savings account. He spent 198 on a radio and 4/12 of what was left on presents for his friends. Of the money remaining, John put 2/9 into a checking account and the last remaining 980 was left to charity. How much money did John originally have in his savings account?