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
dimulka [17.4K]
3 years ago
7

Constants Part A wo charged dust particles exert a force of 7.5x102 N n each other What will be the force if they are moved so t

hey are only one-eighth as far apart? Express your answer using two significant figures.
Physics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

New force, F'=48\times 10^3\ N

Explanation:

It is given that,

Force acting between two charged particles, F=7.5\times 10^2\ N

We need to find the force if they are moved so they are only one-eighth as far apart.

The force between two charged particles separated at a distance of r is given by :

F=k\dfrac{q_1q_2}{r^2}............(1)

If the charges are one-eighth as far apart then, r' =(1/8)r and new force is given by :

F'=k\dfrac{q_1q_2}{(\dfrac{r}{8})^2}..........(2)

Dividing equation (1) and (2) :

\dfrac{F}{F'}=\dfrac{1}{64}

F'=7.5\times 10^2\ N\times 64

F' = 48000 N

or

F'=48\times 10^3\ N

Hence, this is the required solution.

You might be interested in
Object A has of mass 7.20 kilograms, and object B has a mass of 5.75 kilograms. The two objects move along a straight line towar
Vera_Pavlovna [14]
If the collision is elastic, there is no loss in kinetic energies, which means that the total energies before and after impact are the same.  So no need to worry about final velocities.

Final energy
= initial energy
= (1/2) (7.20*2.00^2+5.75*(-1.30)^2)
=19.26 joules

Answer: the total kinetic energy is 19.3 J. after collision.

8 0
4 years ago
Which technology is used to service space vehicles and other equipment?
Crank
You’re correct hope this helps :)
6 0
3 years ago
If a runner has a speed of 8.66m/s and runs for 46.2s what distance is covered? tv = d
kati45 [8]

Answer:

\text{Using the formula: }v=\frac{d}{t}\\\therefore vt=d\\\text{Plug and chug:}46.2(8.66)=400.092\text{ metres}

6 0
3 years ago
Earth attracts a person with a gravitational force of 7.0 × 102 newtons. What is the magnitude of the force with which the indiv
Anuta_ua [19.1K]
This is a good time to review Newton's 3rd law of motion:
"For every action, there is an equal and opposite reaction."

Gravitational force always acts in pairs.
Whatever force the Earth attracts something with,
the thing attracts the Earth with exactly the same force.

If Earth attracts a person with a gravitational force of <span><span>7.0 × 10² </span>newtons,
the person attracts Earth with a gravitational force of 7.0 × 10² newtons.

Your weight on Earth is the same as the Earth's weight on you !
</span>
5 0
4 years ago
AJUDEM ME POR FAVOR URGENTE! :(
loris [4]
Link provided in other answer is a SCAM, don’t click on the link !!!!
5 0
3 years ago
Other questions:
  • An electric hair dryer is rated 350w 110v. the safety fuse in the circuit can withstand 12a of current. how many hair dryers can
    10·1 answer
  • How could the movement of tectonic plates create another supercontinent like Pangaea
    7·1 answer
  • A top fuel dragster covers the quarter mile in 4.5 seconds. What is it's speed in miles per hour
    9·2 answers
  • In which case would a widely accepted scientific idea most likely be revised?
    9·2 answers
  • How many calories are needed to vaporize 1g of boiling water at 100?
    7·1 answer
  • Problem 13.145 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitte
    7·1 answer
  • American football uses a field that is 100.0yd long, whereas the a soccer field is 100.0m long. Which field is longer and by how
    5·2 answers
  • An electrostatic paint sprayer has a 0.17 m-diameter metal sphere at a potential of 25.0 kV that repels charged paint droplets o
    7·1 answer
  • What are the two components of any vector
    12·1 answer
  • Ill give brainliest if you say hi
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!