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
Lina20 [59]
3 years ago
12

Two 2.0-cm-diameter insulating spheres have a 6.70 cm space between them. One sphere is charged to +70.0 nC, the other to -40.0

nC. What is the electric field strength at the midpoint between the two spheres?
Physics
1 answer:
guapka [62]3 years ago
4 0

Answer:

Explanation:

The distance of middle point from centres of spheres will be as follows

From each of 2 cm diameter sphere

R  = 1 + 6.7 / 2 = 4.35 cm = 4.35 x 10⁻² m

Expression for electric field = Q / 4πε R²

Electric field due to positive charge

E₁ = 70  x 10⁻⁹ x 9 x 10⁹ / 4.35² x 10⁻⁴

= 33.3 x 10⁴ N/C

Electric field due to negative  charge

E₂ = 40  x 10⁻⁹ x 9 x 10⁹ / 4.35² x 10⁻⁴

= 19.02 x 10⁴ N/C

E₁ and E₂ act in the same direction so

Total field = (33.3 + 19.02 ) x 10⁴

= 52.32 x 10⁴ N/C .

You might be interested in
Question 5 help please
IrinaVladis [17]

Answer:

It is another machine that helps the main machine. Hope that helps!

5 0
3 years ago
There are 15 water molecules in the air, and the relative
AlexFokin [52]

30 30 30 30 30 30 30 30 30 30

6 0
2 years ago
How To do this question
777dan777 [17]
Since it is given that their particles have a large difference in size, we can conclude that the particles of small size get embedded into the space between the particles of large size. Thus it doesn't increased it volume as it should have.
6 0
3 years ago
? is the change in position relative to an initial location
umka21 [38]

Answer: c. displacement

Explanation:

Let's begin by stating clear that motion is the change of position of a body at a certain time. So, during this motion, the body will have a trajectory and a displacement.

In the specific case of the displacement, it is defined as the distance in a straight line between the initial and final position (is a vector magnitude).

Therefore:

Displacement s the the change in position relative to an initial location.

7 0
4 years ago
Read 2 more answers
QUESTION 2
beks73 [17]

Answer:

1.Plants roots hold the soil in place.

3 0
3 years ago
Other questions:
  • Use the graph attached below.
    14·1 answer
  • The coriolis effect ________. keeps earth from spinning too fast is caused by the moon results in ice and dark at the poles in w
    11·1 answer
  • An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?
    10·1 answer
  • What is the speed of sound in air at 50°F (in ft/s)?
    7·1 answer
  • Would sound travel faster at the north pole or in the sahara desert? Explain ur answer
    6·1 answer
  • which best describes what happens with the sonar to sound pulses from a ship after they hit the ocean floor?
    13·1 answer
  • Which of the following processes occurs in the cells of plants?
    10·1 answer
  • if a toaster oven uses 1000 J of electrical energy to produce 800 J of thermal energy, what is the percent efficiency of the toa
    10·1 answer
  • One molecule of calcium oxide, Cao, and one molecule of carbon dioxide, CO2, combine in a chemical reaction to form one
    15·1 answer
  • If you weigh 38 kilograms on your bathroom scale, your weight in space will be ________.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!