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
How to reword this? What does it mean?
schepotkina [342]
This passage is about how people research food, how much calories, much much energy you get from it, etc.  It also explains the different kinds of food get a certain amount of calories. Some calories burn quicker than the other.
5 0
3 years ago
When it reacts with another element, an oxygen atom gains two electrons.
luda_lava [24]

Answer:

A

Explanation:

An ion with a negative charge

3 0
3 years ago
Read 2 more answers
a 2100-kg car drives with a speed of 18 m/s onb a flat road around a curve that has a radius of curvature of 83m. The coefficien
Law Incorporation [45]

Answer:

<u>The magnitude of the friction force is 8197.60 N</u>

Explanation:

Using the definition of the centripetal force we have:

\Sigma F=ma_{c}=m\frac{v^{2}}{R}

Where:

  • m is the mass of the car
  • v is the speed
  • R is the radius of the curvature

Now, the force acting in the motion is just the friction force, so we have:

F_{f}=m\frac{v^{2}}{R}

F_{f}=2100\frac{18^{2}}{83}

F_{f}=8197.60 \: N

<u>Therefore the magnitude of the friction force is 8197.60 N</u>

I hope it helps you!

7 0
3 years ago
In what frame of reference would you be at rest while riding in a car?
Alexeev081 [22]

In the frame of reference of anybody in the car.

8 0
3 years ago
Read 2 more answers
What was the kickball was originally named
Misha Larkins [42]

Answer:

kick baseball

Explanation:

The sport of kickball, originally called "kick baseball," has roots going back to the early part of the 20th century in Cincinnati, Ohio. In the 1920's physical education teachers used kickball to teach the basics of baseball

5 0
3 years ago
Read 2 more answers
Other questions:
  • What does the word invulnerable mean​
    6·1 answer
  • What is the total number of atoms in the formula?   NH 3
    15·1 answer
  • batman recharges his bat taser with 2.5mj of energy in 15 minutes how much power does it draw from the mains
    5·1 answer
  • The magnification of a microscope is increased when_________.
    6·1 answer
  • What is the magnitude of the force between two parallel wires 43.0 m long and 5.9 cm apart, each carrying 35.0 A in the same dir
    5·1 answer
  • Sound waves travel at the rate of 343 m/s at 20°C. If a man standing 450 meters away from the wall of a canyon yells, “Hello,” h
    10·1 answer
  • What four things affect gas pressure?
    15·1 answer
  • 386.5<br>- 129.18 what is it​
    8·2 answers
  • All of the following are important reasons to take notes except.
    13·2 answers
  • Thermal energy transfers from a cup of tea at 350 K to the hand holding it. <br> A)True<br> B)False
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!