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
Agata [3.3K]
3 years ago
15

Two charges are sitting 1.5 m apart with a force of 3 N between them. They are now moved farther apart to 2.25 m and one of the

charges is increased by a factor of 4. What is the magnitude of the new force between the two charges?
Physics
1 answer:
ANTONII [103]3 years ago
5 0

Answer: 2.37N

Explanation:

According to coulombs law which states that the force of attraction (F) between two charges (q1 and q2) is directly proportional to the product of their charges and inversely proportional to the square of the distance (r) between them. Mathematically,

F = kq1q2/r²

For the first two charges that are sitting 1.5 m apart with a force of 3 N between them, we have

3 = kq1q2/1.5²

3 = kq1q2/2.25

Kq1q2= 6.75... (1)

If the charges are now moved farther apart 2.25 m and one of the charges is increased by a factor of 4. The formula becomes

F2 = k(4q1)q2/2.25² (q1 has been increased by factor of 4)

k(4q1)q2 = 5.06F2 ... (2)

Dividing 2 by 1 we have

k(4q1)q2/kq1q2 = 5.06F2/3

4 = 5.06F2/3

5.06F2 = 12

F2= 12/5.06

F2 = 2.37N

Therefore the magnitude of the new force between the two charges is 2.37N

You might be interested in
PLEASE HELP!!! WILL GET BRAINIEST FOR 5 SENTENCES
emmasim [6.3K]
Hello.

BEVs and hydrogen fuel cell vehicles are a more promising transportation technology for the future because they reduce greenhouse gas emissions as well as CO2 making it more 'green.' The second question is your opinion, in mine no, they should not be required but they should at least be considering.
Have a nice day
5 0
3 years ago
Is there any machine that is 100% efficient? why?why not
denis-greek [22]

Answer:

No, it's not there.

Explanation:

For a machine to be 100% efficient, it has to be with an output which is equal to its input. But machines have an out put less than an input, hence efficiency below 100%.

7 0
3 years ago
The following equation, N2 + 3 H2 —>2 NH3 ,describes a
mafiozo [28]
Physical change 1 is the answer
4 0
1 year ago
Read 2 more answers
Linear expansivity of steel
Anuta_ua [19.1K]

<em>Steel: 11.0 – 12.5</em>

<em>T̶e̶t̶s̶u̶t̶e̶t̶s̶u̶ ̶T̶e̶t̶s̶u̶t̶e̶t̶s̶u̶</em>

Thanks,

<em>Deku ❤</em>

5 0
3 years ago
Kyra and Pari are timing how long it takes for 1 g of sugar to dissolve in hot water. Kyra records a time of 24.3 seconds. Pari
Hoochie [10]
<h3>Answer:</h3><h3>we can say that:-</h3>
  1. A reading with more no of significant figures is considered to be more precise.
  2. Kyra recorded a reading of 24.3 sec. Since all non 0 digits are considered to be significant this reading has 3 significant figures.
  3. Pari recorded a reading of 24 sec. Since all non 0 digits are considered to be significant this reading has 3 significant figures.
<h3>hence we can say that kyra's reading has more significant figures nd so it is more precise.</h3>

7 0
3 years ago
Other questions:
  • Puzzle 3
    5·1 answer
  • Which statement about the physical change of liquid water boiling into steam is true?
    13·2 answers
  • a beaker has mass of 125 g. what is the mass of liquid if the beaker plus liquid have a mass of 232 g?
    5·1 answer
  • Is 72.3 L of an ideal gas is cooled from 36 Celsius to -156 Celsius what is the volume of the gas become
    9·1 answer
  • A car is strapped to a rocket (combined mass = 661 kg), and its kinetic energy is 66,120 J.
    13·1 answer
  • Newton's first law of motion states that an object at rest or moving with constant velocity will remain that way until it is act
    9·1 answer
  • A ball rolls over the edge of a platform with only a horizontal velocity. The height of the platform is 1.6 m and the horizontal
    15·1 answer
  • A 0.200 m wire is moved parallel to a 0.500 T
    10·1 answer
  • What is the velocity of an object that travels a distance of 48m in 12s?
    6·2 answers
  • The forces acting on a ball sitting on the ground are
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!