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
emmainna [20.7K]
3 years ago
11

Air "breaks down" when the electric field strength reaches 3×106n/c, causing a spark. a parallel-plate capacitor is made from tw

o 4.0-cm-diameter disks.
Physics
1 answer:
aalyn [17]3 years ago
4 0
Ok, I think this is right but I am not sure:
 Q = ϵ
 0AE
A= π π
 r^2

=(8.85x10^-12 C^2/Nm^2)
( π π (0.02m)^2)
(3x10^6 N/C) =3.3x10^-8 C = 33nC N = Q/e = (3.3x10^-8 C)/(1.60x10^-19 C/electron) = 2.1x10^11 electrons


You might be interested in
Science 8 - Electromagnetic Spectrum Worksheet
yuradex [85]

Answer:

1. Electromagnetic spectrum

2. Electromagnetic radiation

3. Radiant energy

4. Infared  waves

5. Electricmagnetic radiation or Infared waves

6. Radio waves

7. Gamma rays

8. Radio waves

9. Ultraviolet rays

10. This is because it doesn’t contain water or a substance.

11. You should use sunscree and a hat to protect your skin from UV light that might  cause skin cancer.

Hope this helps

7 0
3 years ago
Find the velocity, acceleration, and speed of a particle with the given position function. r(t) = t i + t2 j + 3 k v(t) = a(t) =
stepladder [879]

Answer:

Velocity

v= i + 2  j

Acceleration

a= 2 j

Explanation:

Given that

r(t) = t i + t² j + 3 k

We know that

Velocity v given as

v= dr/dt

dr/dt= i + 2 t j +0

v= i + 2 t j

At t= 1

v= i + 2 x 1 j

v= i + 2  j

Acceleration ,a

a=  dv/dt

v= i + 2 t j

dv/dt= 2 j

a= 2 j

6 0
3 years ago
A 3-m-high large tank is initially filled with water. The tank water surface is open to the atmosphere, and a sharp-edged 10-cm-
DanielleElmas [232]
3-m-high large tank is initially filled with water. The tank water surface is open to the atmosphere, and a sharp-edged 10-cm-diameter orifice at the bottom drains to the atmosphere through a horizontal 80-m-long pipe. If the total irreversible head loss of the system is determined to be 1.5 m, determine the initial velocity of the water from the tank. Disregard the effect of the kinetic energy correction factors.
5 0
3 years ago
If a topographic map included a 6,000 ft. mountain next to an area of low hills, which would best describe the contour lines on
VMariaS [17]
The answer to the given question above would be option B. If a topographic map included a 6,000 ft. mountain next to an area of low hills, the statement that best describe the contour lines on the map is this: <span>The contour lines around the mountain would be very close together. Hope this helps.</span>
8 0
3 years ago
Read 2 more answers
What is happening to the earth's field right now.
Pie
It is bracking down because of all the pollutoin 
8 0
3 years ago
Other questions:
  • Regardless of the method used to generate electrical energy, the amount of energy provided by the
    15·1 answer
  • What force would be required to accelerate a 1.100 kg car to 0,5 m/s27
    10·1 answer
  • How bullet train and circuit breaker work on the magnetic effect of current?
    5·1 answer
  • If a photon of Light leaves the sun than reachers the earth 494 second later. What is the distance from the earth to sun
    11·2 answers
  • A toy helicopter takes off and moves 6 m up and then 1 m back down. What
    5·1 answer
  • Who's wrong? I think the correct numbers would be 17 and 18, not 18 and 19.
    8·1 answer
  • 6) Mechanical (sound) waves are unable to travel through a vocuurn, such os through space, but r from satelites How is this poss
    13·1 answer
  • D
    13·1 answer
  • Which type of employee would most likely spend the majority of work time in a vehicle? O a Corrections Officer at a jail O a Dis
    15·2 answers
  • What is the longest wavelength that can be observed in the third order for a transmission grating having 5200 slits/cm?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!