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
Contact [7]
3 years ago
9

A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 10.5 cm, giving it a cha

rge of -22.3 µC.. . (a) Find the magnitude of the electric field just inside the paint layer. (b) Find the magnitude of the electric field just outside the paint layer. (c) Find the magnitude of the electric field 5.00 cm outside the surface of the paint layer.

Physics
2 answers:
soldier1979 [14.2K]3 years ago
8 0
The formula that will be used in this problem is E = q/ 4pi*r^2 z where z is the elctric charge constant equal to 8.854  *10 ^-12. The magnitude using r equal to 0.0525 m and q equal to -22.3 *10^-6 C is equal to -22.3 *10^-6/ 4pi*(0.0525)^2 *8.854  *10 ^-12 or equal to -7.272 *10 ^7. The magnitude 5 cm outside the surface is -22.3 *10^-6<span>/ 4pi*(0.0525+0.05)^2 *8.854  *10 ^-12 equal to -1.908 *10^7. 

</span>
olya-2409 [2.1K]3 years ago
8 0

Since it is hard to write the mathematics equations here so i would like to share it in a picture

You might be interested in
Answer question quick
Anettt [7]

Answer:

Yes , insulation has no role

5 0
3 years ago
What is the pressure at 5000 km below the surface of the earth
attashe74 [19]

Answer:

The centre of the earth is harder to study than the centre of the sun." Temperatures in the lower mantle the reach around 3,000-3,500 degrees Celsius and the barometer reads about 125 gigapascals, about one and a quarter million times atmospheric pressure.

Explanation:

7 0
2 years ago
AP physics Will give brainliest to correct answer.
rjkz [21]

Answer:

the 4th one

Explanation:

6 0
3 years ago
Read 2 more answers
The cunninghams are moving across the country. Mr.cunningham leaves 2.5 hours before mrs.cunningham. If he averages 40 mph and s
Eva8 [605]

When she starts out, he is (40x2.5)= 100 miles ahead of her.

She gains (65-40)= 25 miles on him every hour.

It takes her (100/25)= 4 hours to catch up to him.

5 0
3 years ago
Which if the following statements is true? A. Instantaneous acceleration is always changing. B. An object at rest has an instant
ycow [4]
B is the right one

hope this helps you
3 0
3 years ago
Other questions:
  • A temperature of 34 fereheight is equal to blank kelvin
    5·2 answers
  • What happens that a light ray if it incident on a reflective surface along the normal
    13·1 answer
  • Which of the following are examples of natural forces? A. optical B. phase C. gravity D. nuclear
    15·1 answer
  • How much force is needed to accelerate a 3kg book in 15m/s
    8·1 answer
  • Describe two examples of activities that you do where you depend on friction, and would not be able to do them without friction.
    8·1 answer
  • A sinusoidal electromagnetic wave is propagating in a vacuum in the +z-direction. If at a particular instant and at a certain po
    15·1 answer
  • 2. A body starts with an initial velocity of 10 m s-1 and
    15·1 answer
  • Hurricanes are formed due to
    14·2 answers
  • Why us an element considered a pure substance
    11·2 answers
  • 5, the following equation shows the position of a particle in time t, x=at2i + btj where t is in second and x is in meter. A=2m/
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!