1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Yakvenalex [24]
2 years ago
11

How much work is required to move an electron

Physics
1 answer:
vodomira [7]2 years ago
5 0

Answer:

(2) the work required to move the electron is 4.8 x 10⁻¹⁹ J.

Explanation:

Given;

potential difference, V = 3.00 volts

charge of electron, q = 1.6 x 10⁻¹⁹ C

The work required to move an electron is calculated as;

W = Vq

where;

W is the work done in Joules

Substitute the given values and solve for W;

W = (3.00)(1.6 x 10⁻¹⁹)

W = 4.8 x 10⁻¹⁹ J.

Therefore, the work required to move the electron is 4.8 x 10⁻¹⁹ J.

You might be interested in
A ball has a mass of 2 kg and is thrown with a force of 8 Newtons for .35 seconds. What is the ball's change in
Anna [14]

Answer:

1.4s

Explanation:

Given parameters:

Mass of ball  = 2kg

Force  = 8N

Time  = 0.35s

Unknown:

Change in velocity  = ?

Solution:

To solve this problem, we use the expression obtained from Newton's second law of motion which is shown below:

      Ft  = m(v  - u)

 So;

         Ft  = m Δv

F is the force

t is the time

m is the mass

Δv is the change in velocity

             8 x 0.35  = 2 x Δv

                  Δv  = 1.4s

6 0
2 years ago
How far did the object travel by the end of eight seconds, according to the graph above?
Ulleksa [173]

Answer:

<em>The object traveled 4 cm by the end of eight seconds.</em> Correct: A)

Explanation:

<u>Speed vs Time Graph</u>

In a speed-time graph, speed is plotted on the vertical axis and time is plotted on the horizontal axis. If the graph is a horizontal line, the speed is constant, if the line is sloped up, the speed is increasing and the acceleration is positive and constant, and if the line is sloped down, the speed is decreasing and the acceleration is negative and constant.

The distance traveled by the object can be found by calculating the area under the graph and above the x-axis.

The graph provided shows two different zones: the first 4 seconds, the speed is constant at 1 cm/s, and the last 4 seconds, the speed is zero, i.e. the object is not moving.

The area behind the first zone is a rectangle of height 1 cm/s and base 4 sec, thus the distance is 1 * 4 = 4 centimeters.

The second zone corresponds to an object at rest, thus no distance is traveled.

The object traveled 4 cm by the end of eight seconds.

A) Correct. As shown above

B) The distance traveled is 4 cm. Incorrect

C) The distance traveled is 4 cm. Incorrect

D) The distance traveled is 4 cm. Incorrect

6 0
3 years ago
In which electric circuit would the voltmeter read 10 volts ?
ki77a [65]

Given that,

Voltage = 10 volt

Suppose, The three resistance is connected in parallel and each resistance is 12 Ω. find the current in the electric circuit.

We need to calculate the equivalent resistance

Using formula of parallel

\dfrac{1}{R}=\dfrac{1}{R_{1}}+\dfrac{1}{R_{2}}+\dfrac{1}{R_{3}}

Put the value into the formula

\dfrac{1}{R}=\dfrac{1}{12}+\dfrac{1}{12}+\dfrac{1}{12}

\dfrac{1}{R}=\dfrac{1}{4}

R=4\ \Omega

We need to calculate the current in the circuit

Using ohm's law

V=IR

I=\dfrac{V}{R}

Where, V = voltage

R = resistance

Put the value into the formula

I=\dfrac{10}{4}

I=2.5\ A

Hence, The current in the circuit is 2.5 A

4 0
2 years ago
1. Find the kinetic energy of a .023 kg bullet moving at 420 m/s.
love history [14]

Answer:

Correct answer: Ek = 2,028.6 J

Explanation:

Ek = m v²/2 = 0.023 · 220² = 0.023 · 176,400/2 = 2,028.6 J

God is with you!!!

8 0
2 years ago
Question 7 of 10 A permanent magnet picks up an iron nail, magnetizing the nail. How is this system different from an electromag
Nookie1986 [14]

Answer: I think it’s D i really hope this helps!!!!

Explanation:

5 0
3 years ago
Other questions:
  • Piaget used a pendulum apparatus to assess whether children had reached the _____ stage of cognitive development.
    14·1 answer
  • As a general rule of thumb, the greater the altitude of the top of a thunderstorm cloud (cumulonimbus), the more intense the thu
    5·1 answer
  • Newton's law of universal gravitation is represented by f = g mm r2 where f is the gravitational force, m and m are masses, and
    7·1 answer
  • How would Newton's Three laws apply to a Ferris Wheel?
    11·1 answer
  • Explain how force (F=ma), momentum (p=mv), energy, and gravity play a part in a launching sequence.
    10·2 answers
  • Is length a <br> vector,<br> scalar<br> ,both,<br> neither
    15·1 answer
  • Please help its for science
    12·2 answers
  • What do you observe when we view the orbit of the moon at our first<br> setting?
    12·1 answer
  • Protective equipment and protective measures help keep all types of workers safe on the job.
    7·2 answers
  • Seeds are often found on which part of a gymnosperm?<br><br> branch<br> leaf<br> cone<br> stem
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!