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
Sloan [31]
2 years ago
12

A constant electric field of 5.00 N/C points along the positive x-direction. An electron, initially at rest, moves a distance of

2.00 m in this space. How fast is the electron moving after its 2.00 m journey
Physics
1 answer:
Genrish500 [490]2 years ago
7 0

Answer:

1.875 x 10⁶ m /s .

Explanation:

Force on electron = E e where E is electric field and e is charge on electron

acceleration generated = Ee / m where m is mass of the electron .

Putting the values

acceleration generated = 5 x 1.6 x 10⁻¹⁹ / 9.1 x 10⁻³¹

= .879 x 10¹² m /s²

v² = u² + 2 as , initial velocity u = 0 , displacement s = 2 m

v² = 0 + 2 x .879 x 10¹² x 2

v = 1.875 x 10⁶ m /s .

You might be interested in
If an unknown element has a mass of 17 and contains 6 neutrons, how many protons does it have ?
lbvjy [14]

The mass number is the total number of protons and neutrons within an atom and since we know that the unknown element has 6 neutrons, we can simply subtract the number of neutrons from the mass number to get the number of protons.

17 - 6 = 11

There are 11 protons in this unknown element.


Extra:

The number of protons (+) and electrons (-) are equal in a neutral atom so since you know that there are 11 protons you also know that there are 11 electrons. On the periodic table, the element with 11 electrons is Na or Sodium.


Hope this helps! :)

6 0
3 years ago
A 1,000 kg car is driving on a 15 m high bridge at 5 m/s. What is the kinetic energy of the car?
yanalaym [24]

Answer:

KE=12,500J

Explanation:

The formula for kinetic energy is:

KE = \frac{1}{2}mv^2

We can plug in the given values into the equation:

KE = \frac{1}{2}*1000kg*(5m/s)^2

KE = 500kg*25m^2/s^2

KE=12,500J

7 0
2 years ago
PLS HELP ME I WILL GIVE YOU BRAINLIEST
ElenaW [278]
3. Millions of years ago, the Earth was not divided into 7 continents. It was only a very large land mass, the scientists named that one land mass “Pangaea”
4. If the tectonic plates are disturbed, they can cause mass earthquakes and tsunamis.
5. The ring of fire is a massive collection of volcanoes under the pacific ocean. They all form the shape of a ring, hence the name.
SORRY, I COULDNT ANSWER THE FIRST TWO QUESTIONS.
8 0
3 years ago
Read 2 more answers
catapult’s lever holds a cannonball. The lever is attached to a tightly held rope. When the rope is released, the lever springs
Shalnov [3]

Answer:

Potential energy

Explanation:

Before release, the catapult has potential energy stored in a tension of torsion device in it. Normally a flexible bow like object that could be made of wood or of metal.

6 0
3 years ago
True or False: For a longitudinal wave, the wavelength is the distance between compressions.
Schach [20]

Answer:

false....

Explanation:

brainliest

5 0
3 years ago
Other questions:
  • The space shuttle fleet was designed with two booster stages. if the first stage provides a thrust of 53 kilo-newtons and the sp
    6·1 answer
  • ANY help with answering ANY of the questions would be greatly appreciated. I don't understand physics at all.
    5·1 answer
  • (b) Lorna then built a different circuit as shown below. How could Lorna get both bulbs to light at the same time in this circui
    5·1 answer
  • 4application of energy from water
    12·1 answer
  • PLEASE HELP! AWARDING BRAINLIEST!
    6·2 answers
  • Describe the effect of the amplitude on the velocity of the pulse!???
    10·1 answer
  • As you change the value of the battery voltage, how does this change the current through the circuit and the resistance of the r
    7·1 answer
  • Pablo's engineering team has developed a new material that is strong enough to withstand major impacts, including bullets, witho
    11·1 answer
  • Water displacement is used to find what?<br><br><br><br>a. volume <br><br><br><br>b. density ​
    11·1 answer
  • 5.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!