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
morpeh [17]
3 years ago
13

The potential difference between the plates of a capacitor is 145 V. Midway between the plates, a proton and an electron are rel

eased. The electron is released from rest. The proton is projected perpendicularly toward the negative plate with an initial speed. The proton strikes the negative plate at the same instant the electron strikes the positive plate. Ignore the attraction between the two particles, and find the initial speed of the proton.
Physics
1 answer:
aniked [119]3 years ago
7 0

Answer:

= 2.52 x 10^ 6 m/s        

Explanation:

The force that acts on charged particles between capacitor plates =

F = (q) (Δv)  ÷ d

Here,  d = distance between the two plates

          q = charge of the charged particle

         Δv = voltage

Normally, the force that makes both proton and electron released from rest, giving the charge acceleration is F=m X a. where m= mass and a = acceleration

Poting this equation with the first one, we have:

m X a =  (q) (Δv)  ÷ d

So, the acceleration of a proton when moving towards a negatively charged plate is

a = (q) (Δv)  ÷ (d) (m) {proton}

Likewise, the acceleration of an electron when moving towards a positively charged plate is

a = (q) (Δv)  ÷ (d) (m) {electron}

Dividing the proton acceleration formula by the electron acceleration formula we have:

a (proton) / a (electron) = m (proton) / m(electron)

inserting equation of motion to get distance, s

s = ut + 1/2 at^2

recall that electron travel distance, d/2

d/2 = 1/2 at^2

making t the subject of the formula

we have, t =√(d ÷ a(electron))

The distance of proton:

d/2 =  ut + 1/2 at^2 [proton}

put d/2 =  ut + 1/2 at^2 [proton} into t =√(d ÷ a(electron))

Initial speed, ui = √(d ÷ a(electron)) = (d/2) - (1/2) x (d) (a(proton) + a(electron))

since acceleration wasn't given in the question, lets use mass(elect

ron)  ÷ mass(proton) rather than use (a(proton) + a(electron))

Therefore, intial speed= 1/2√((e X Δv) ÷ m(electron)) (1- m(electron)/ m(proton))

   Note, e = 1.60 x 10^-19

           m(electron) = 9.11 X 10^-31

            m(proton) = 1.67  X 10^-27

Input these values into the formula above, initial speed, UI =  

           = 2.52 x 10^ 6 m/s          

You might be interested in
3. Jeremy has a solution with a mass of 228 g. He knows that the mass of the solvent was 224 g. How much is the mass of the solu
mariarad [96]
228 - 224 = 4

there is 4g of solute in the solution.
3 0
2 years ago
What does the Pauli exclusion principle state? . . A.Electrons will be added to an atom at the lowest possible level or sublevel
BARSIC [14]
The Pauli exclusion principle state that : D. Two electrons occupy the same orbital only if they have opposite spins

This happen because he stated that in an atom or molecule, two electrons CANNOT have same four electronic quantum numbers

hope this helps
5 0
3 years ago
Why are nuclear power plants controversial
Sliva [168]
Because a nuclear meltdown can be caused if systems fail. 
6 0
2 years ago
Katrina is a teen from Australia who participates in curling, a sport in which players slide stones across the ice toward a targ
goldenfox [79]
Personally i would say advertising but I can also see where it could be globalization because the Olympics is about different countries coming together and having friendly competition. 
6 0
3 years ago
Read 2 more answers
What is the source of all magnetism?
ivanzaharov [21]
The answer is electric current
3 0
3 years ago
Other questions:
  • A 200g particle oscillating in SHM travels 66cm between the two extreme points in its motion with an average speed of 110cm/s. F
    9·1 answer
  • A snail can move approximately 0.30 meters per minute. How many meters can the snail cover in
    14·2 answers
  • B. A car moving at an initial speed vi applies its brakes and skids for some distance until coming to a complete stop. If the co
    9·1 answer
  • A total charge of 4.70 is distributed on two metal spheres. When the spheres are 10 cm apart, they each feel a repulsive force o
    8·1 answer
  • What must the condition of the alveoli be in order for gas exchange to occur
    10·1 answer
  • Write and solve a MA or efficiency problem
    13·1 answer
  • A slingshot is used to shoot a small ball upward into the air; when the pouch is released, the sling propels the ball upward. as
    9·1 answer
  • Please help due tomorrow I will give brainliest! and points<br>​
    14·1 answer
  • aqueos barium chloride reacts with aqueous sodium sulfate to produce solid barium sulfate and aqueous sodium chloride
    11·1 answer
  • Why doesn’t the total pressure increase when more gas is added to the chamber? (hint: what would you see if the volume of the ch
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!