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
olga2289 [7]
3 years ago
13

Sphere 1 with radius R_1 has positive charge q, Sphere 2 with radius 4.50 R_1 is far from sphere 1 and initially uncharged. The

separated spheres are then connected with a wire then uncouth to retain only negligible charge. (a) What is the ratio V_1/V_2 of the final potentials of the spheres? (b) what fraction of q ends up on sphere? (c) What fraction of q ends up on sphere 2? (d) What is the ratio q_1/q_2 of the surface charge densities of the spheres?
Physics
1 answer:
tia_tia [17]3 years ago
6 0

Answer:

Explanation:

capacitance of sphere 2 will be 4.5 times sphere 1

a ) when spheres are in contact they will have same potential finally . So

V_1 / V_2 = 1

b )

Charge will be distributed in the ratio of their capacity

charge on sphere1 = q  x 1 / ( 1 + 4.5 )

= q / 5.5

fraction = 1 / 5.5

c ) charge on sphere 2

= q x 4.5 / 5.5

fraction = 4.5 / 5.5

d ) surface charge density of sphere 1

= q /( 5.5 x A ) where A is surface area

surface charge density of sphere 2

= q x 4.5 /( 5.5 x 4.5² A ) where A is surface area

= q  /( 5.5 x 4.5 A )

q_1/q_2 = 4.5

You might be interested in
Help plz anyone ?????
Alexus [3.1K]

Answer:

Most likely, it will be harder to get strong magnets to change phase because they have more density.

3 0
3 years ago
A 10.0-cm-long uniformly charged plastic rod is sealed inside a plastic bag. The net electric flux through the bag is 7.50 × 10
Rina8888 [55]

Answer:

66.375 x 10⁻⁶ C/m

Explanation:

Using Gauss's law which states that the net electric flux (∅) through a closed surface is the ratio of the enclosed charge (Q) to the permittivity (ε₀) of the medium. This can be represented as ;

∅ = Q / ε₀        -----------------(i)

Where;

∅ = 7.5 x 10⁵ Nm²/C

ε₀ = permittivity of free space (which is air, since it is enclosed in a bag) = 8.85 x 10⁻¹² Nm²/C²

Now, let's first get the charge (Q) by substituting the values above into equation (i) as follows;

7.5 x 10⁵ = Q / (8.85 x 10⁻¹²)

Solve for Q;

Q = 7.5 x 10⁵ x 8.85 x 10⁻¹²

Q = 66.375 x 10⁻⁷ C

Now, we can find the linear charge density (L) which is the ratio of the charge(Q) to the length (l) of the rod. i.e

L = Q / l     ----------------------(ii)

Where;

Q = 66.375 x 10⁻⁷ C

l = length of the rod = 10.0cm = 0.1m

Substitute these values into equation (ii) as follows;

L = 66.375 x 10⁻⁷C / 0.1m

L = 66.375 x 10⁻⁶ C/m

Therefore, the linear charge density (charge per unit length) on the rod is 66.375 x 10⁻⁶ C/m.

3 0
3 years ago
Why are images reflected from a rough surface not as clear as those reflected from a smooth
ioda

Answer:

Just as images are reflected from the surface of a mirror, light reflected from a smooth water surface also produced a clear image. ... Consequently, the outgoing rays are reflected at many different angles and the image is disrupted. Reflection from such a rough surface is called diffuse reflection and appears matte.

Explanation:

hi po I hope it's help you

7 0
3 years ago
A mobile phone is pulled northward by a force of 10 n and at the same time pulled southward by another force of 15 n. the result
makvit [3.9K]
5 Southward would be the correct answer.
6 0
3 years ago
Air at the poles tends to flow close to the surface toward the equator. What can you conclude about the characteristics of this
LenaWriter [7]

Answer:

That the polar air has has more pressure than the air at the equator.

Explanation:

5 0
3 years ago
Other questions:
  • Why do helium balloons float? Talk about density of atoms and compare to elements in the air.
    14·1 answer
  • Kevin can text 44 words in 8 minutes. At this rate, how many minutes would it take
    15·1 answer
  • A roller coaster track is a good example of the law of conservation of energy. Use this law to explain these facts about a rolle
    12·2 answers
  • A cylinder of mass mm is free to slide in a vertical tube. The kinetic friction force between the cylinder and the walls of the
    7·1 answer
  • Would you rather be beautiful but you cant look at yourself or be ugly and no one else can see you
    12·1 answer
  • Spinning situations???
    13·2 answers
  • What direction do s waves move in
    10·1 answer
  • A hot-air balloon of diameter 12 mm rises vertically at a constant speed of 14 m/s. A passenger accidentally drops his camera fr
    8·1 answer
  • 1. A net force of 13 Newtons acting north on an object for 4.0 seconds will produce an impulse of?
    7·1 answer
  • What work is done by a forklift raising a 574 kg crate to a height of 1.3m in a time of 2.0 seconds?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!