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
Fudgin [204]
3 years ago
6

Blocks A and B are identical metal blocks. Initially block A is neutral, and block B has a net charge of 7.0 nC. Using insulatin

g handles, the blocks are moved so they touch each other. After touching for a few seconds, the blocks are separated (again using insulating handles). What is the final charge of block A?
Physics
2 answers:
maxonik [38]3 years ago
6 0

Answer:

Block A will have a final charge of 3.5nC.

Explanation:

This is because at the point of contact with Block B, which is electrically positive, the electrons in Block A will be attracted to the excess 'unpaired' protons in block B. Hence, the electrons will flow into Block B causing unpaired protons to remain in Block A.

This process is called Charging by Conduction.

This charging process will continue until the charges are evenly distributed between both objects.

In case you're wondering, "<em>how's all this possible within a few seconds</em>?", remember that electrons travel very fast and so, this process is a rather rapid one.

Liula [17]3 years ago
5 0

Answer:

3.5 nC

Explanation:

When both metal blocks get in touch each other, as they are assumed perfect conductors, excess charge is evenly spread out on the surfaces on both blocks.

Due to the total charge must be conserved, this means that if one block had a charge Q, and the other block was neutral, after separated, each of them must have exactly the half of the total excess charge.

So, if the total charge was 7 nC, each block must keep 3.5 nC, i.e., the final charge of block A is 3.5 nC.

You might be interested in
In which of the following cases would you feel weightless?
Dafna11 [192]
Falling from an airplane.
6 0
3 years ago
Read 2 more answers
Which of the following is true about the mass of an object?
Butoxors [25]
I believe it is the first one
5 0
2 years ago
Which organism makes its own food? A mouse B snake C grass D owl
bearhunter [10]
Your answer will be C: grass

NOT A, because a mouse would eat seeds, grass, etc
NOT B, because a snake is a carnivore
NOT D, because a owl is also a carnivore
6 0
3 years ago
Read 2 more answers
What is the amplitude of the wave shown in the diagram?
Marina86 [1]
The amplitude is from the absolute value of the 0 point on the y-axis to the highest(peak) or lowest(troph) point of the wave. In this question, 3cm is the highest and -3cm is the lowest, so the amplitude is 3cm.
4 0
3 years ago
Read 2 more answers
The influence of likes and dislikes on thinking called?
jenyasd209 [6]
'A biased oppinion'
 When you like something and right a report on it your opinion will come through about that subject, the same thing occurs if you dislike something. 
:) Hope this helps x
3 0
3 years ago
Other questions:
  • g 4. A student with a mass of m rides a roller coaster with a loop with a radius of curvature of r. What is the minimum speed th
    5·2 answers
  • A defibrillator passes 14.0 A of current through the torso of a person for 0.0300 s. How much charge moves in coulombs?
    13·1 answer
  • Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration
    6·1 answer
  • How do the wavelength and frequency of red light compare to the wavelength and frequency of blue light?
    6·1 answer
  • The resolving power of electron microscopes is much better than the resolving power of light microscopes because the wavelength
    11·1 answer
  • What two gases probably dominated precambrian earth's atmosphere?
    7·1 answer
  • Please help! you are amazing! brainliest!
    11·2 answers
  • PLEASE HELP
    7·1 answer
  • The star named Canopus has a declination of approximately –52°. Which of these statements is correct about Canopus?
    14·1 answer
  • A block has two strings attached to it on opposite ends. One string has a force of 5 N,
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!