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
romanna [79]
3 years ago
6

Three point charges lie in a straight line along the y-axis. A charge of q1 = -10.00 µC is at y = 6.40 m, and a charge of q2 = -

7.70 µC is at y = -3.60 m. The net electric force on the third point charge is zero. Where is this charge located?
Physics
1 answer:
mario62 [17]3 years ago
7 0

Answer:

y coordinate where field is zero is  1.1 m

Explanation:

given data

charge q1 = -10.00 µC

y = 6.40 m,

charge q2 = -7.70 µC

y = -3.60 m

solution

we know that here Electric field E that is express as

Electric field E = \frac{kQ}{r^2}   ..............................1

and

Distance between charges will be

Distance between charges = 6.40 -  (-3.60) = 10 m

so here neutral point P is at  distance d from q1

so it is  distance (10 - d) from q2.  

so here

Field from q1 at P = \frac{k(-10 \times 10^{-6})}{d^2}

and

Field from q2 at P = \frac{k(-7.70 \times 10^{-6})}{(10-d)^2}

so here field is  in opposite directions and the resultant field = 0

so

\frac{k(-10 \times 10^{-6})}{d^2} = \frac{k(-7.70 \times 10^{-6})}{(10-d)^2}  

\frac{10}{d^2} = \frac{7.70}{(10-d)^2}

d =  5.326242 m

so y coordinate where field is zero is 6.40 - 5.32 = 1.1 m

You might be interested in
A 1200 kg car accelerates from 13m/s to 17m/s. find the change in momentum of the car?
lisabon 2012 [21]

Answer:

4800

Explanation:

The change in velocity of the car is 17-13=4m/s. Since the change in momentum is the mass multiplied by the change in velocity, the answer is 4*1200=4800. Hope this helps!

6 0
3 years ago
Maya uses a tuning fork of frequency 250 Hz to produce transverese waves on a stretched string. Her friend justin measure the di
Goshia [24]

Answer:

The velocity of the wave is 12.5 m/s

Explanation:

The given parameters are;

he frequency of the tuning fork, f = 250 Hz

The distance between successive crests of the wave formed, λ = 5 cm = 0.05 m

The velocity of a wave, v = f × λ

Where;

f = The frequency of the wave

λ = The wavelength of the wave - The distance between crests =

Substituting the known values gives;

v =  250 Hz × 0.05 m = 12.5 m/s

The velocity of the wave, v = 12.5 m/s.

6 0
3 years ago
A car traveling on a straight road at 15.0 meters per second accelerates uniformly to a speed of 21.0 meters per second in 12.0
oksano4ka [1.4K]
<h2>Option 3,  216 m is the correct answer.</h2>

Explanation:

We have initial velocity, u = 15 m/s

Time, t = 12 seconds

Final velocity, v = 21 m/s

We have equation of motion v = u + at

Substituting

                     21 = 15 + a x 12

                       a = 0.5 m/s²

Now we have equation of motion v² = u² + 2as

                           21² = 15² + 2 x 0.5 x s

                            s = 216 m

       Displacement = 216 m

Option 3,  216 m is the correct answer.

8 0
3 years ago
What assumption can be made about the densities of two different spheres that have
Triss [41]

Answer:

Their densities are different as well

Explanation:

Density is worked out by dividing mass by volume. If the mass was the same then the densities would be as well. But it's not.

How many marks is this question?

8 0
3 years ago
sinong personalidad ang bumuo ng pangkat militar na tinawag na black shirts na nagsagawa ng pagpupulong ng mga grupong sosyalist
AnnyKZ [126]

Answer:

Answer to the following answer is as follows;

Explanation:

In the northwestern city of Milan, Mussolini formed his nationalist regime in 1919. He organised black-shirted street warriors into teams. His "Blackshirts" raped and expelled socialists and communists from municipal administrations.

The Blackshirts, originally known as the Squadrismo, were formed in 1919 by a group of dissatisfied former soldiers.

3 0
3 years ago
Other questions:
  • Why are men typically less stable on their feet than women
    8·2 answers
  • A toy car is tied to a string and pulled across a table horizontally. Which is the
    10·2 answers
  • If you are at a train station and a train comes toward you, the train blows its whistle. as the train comes closer the whistle g
    10·1 answer
  • 1) The "Ring of Fire" is an area along the edge of the Pacific Ocean with many volcanoes. Most of
    15·1 answer
  • A circuit contains nine 250-watt lamps connected in parallel across a 120-volt circuit. How much power is consumed by the circui
    8·1 answer
  • A heated piece of metal cools according to the function c(x) = (.5)^(x _ 11), where x is measured in hours. A device is added th
    8·2 answers
  • Un repartidor de comida rápida entrega una pizza a una casa que se encuentra a 20 km de distancia y se demora 20 minutos en lleg
    7·1 answer
  • Describe your experience with the largest earthquake you have left
    11·1 answer
  • ......................
    8·1 answer
  • Formula for deriving initial temperature in linear expansivity​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!