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
ivanzaharov [21]
3 years ago
6

A pair of parallel plates, forming a capacitor, are charged. The plates are pulled apart to double the original separation, the

charges on the plates remaining the same. What is the ratio of the final energy stored to the original energy stored?
Physics
1 answer:
polet [3.4K]3 years ago
4 0

Answer:

The final energy will be halved of the original energy.

Explanation:

As we know that the capacitance,

C = εA/d

C = capacitance

A = area of plate

d = distance or separation between the plates

ε = permitivity of dielectric material

As you can see from the formula that the capacitance ( ability of the capacitor to store charge) is inversaly proportional to the separation of the plates. If all the other factors kept constant then increasing the distance between the plates will decrease the ability of the capacitor to store energy. So we can say that by doubling the separation, the capacitance or energy stored will become half.

You might be interested in
What is the order of the types of nuclear radiation from lowest to highest
tangare [24]
The best and most correct answer to the question is :
Alpha particles
Beta particles
Gamma rays
Cosmic radiation
Neutrons
Hope this helped you :)
8 0
3 years ago
Which statement best explains why radon and krypton do not bond easily with other elements?
mote1985 [20]

Answer.B

Explanation:

6 0
3 years ago
Read 2 more answers
2. Categorize each statement as true or false. A cylindrical capacitor is essentially a parallel-plate capacitor rolled into a t
Kruka [31]

Answer:

Explanation:

False --> A cylindrical capacitor is essentially a parallel plate capacitor rolled into a tube. This is because a cylindrical capacitor comprises two cylinders.

False --> The dielectric constant indicates the distance by which the two plates of a capacitor are separated.

True --> The charge on a capacitor increases quickly at first, then much more slowly as the capacitor charges. This is because the charge on the capacitor increases exponentially.

False --> The voltage across a capacitor in an RC circuit increases linearly during charging. This is because the voltage increases exponentially.

True --> One of the principal purposes of a capacitor is to store electric potential energy.

True --> A capacitor charges rapidly when connected to an RC circuit with a battery. This is because a cylindrical capacitor is basically a parallel plate capacitor rolled into a tube.

6 0
3 years ago
[7 pts] 1. Suppose that a car starts from rest, its engine providing an acceleration of 4 ft/s2 while air resistance provides 0.
kumpel [21]

Answer:

a) Initial Value Problem

dv/dt = 4 - 0.1v

v(0) = 0

b) solution to the IVP

v(t) = 40(1 - e^(-t/10))

c) Limiting velocity

Vo = 40 ft/s

Position of the car after 12 hours

X = 14,390 ft

Explanations:

The complete explanations of each of the sections contained in the question are in the files attached to this solution.

4 0
3 years ago
a vector a has components a x equals -5.00 m in a y equals 9.00 meters find the magnitude and the direction of the vector
Murrr4er [49]

Answer:

The magnitude = 10.30 m

The direction of the vector proceeds at angle of 119.05°

Explanation:

Given that:

A vector \bar A has component A_x = -5 m and A_y = 9 m

The magnitude of vector  \bar A can be represented as:

\bar A  = \sqrt{A_x^2 + A_y^2}

\bar A  = \sqrt{(-5)^2 + (9)^2}

\bar A  = \sqrt{25 + 81}

\bar A  = \sqrt{106}

\bar A  = 10.30 m

If we make \bar A  an angle \theta with y- axis:

Then;   tan \theta  = \frac{A_x}{A_y}

tan \theta  = \frac{5}{9}

tan \theta  = 0.555

\theta  = tan⁻¹ (0.555)

\theta  = 29.05°

Angle with positive x-axis = 90 + \theta  

= 90° + 29.05°

= 119.05°

5 0
3 years ago
Other questions:
  • A gas is inside a cylinder fitted with a piston. The gas and its surroundings are both at 20 ∘C and the gas is compressed as the
    9·1 answer
  • ** PLEASE PLEASE HELP A student uses the right-hand rule as shown.
    8·2 answers
  • Points A (-5,6), B (2,-2), and C (-6,-3) are placed in three different quadrants of a Cartesian coordinate system. Convert each
    13·1 answer
  • What are some possible examples of genetic characteristics that can be passed down to child??????
    8·2 answers
  • The n = 8 to n = 4 transition in the bohr hydrogen atom occurs in the __________ region of the electromagnetic spectrum.
    7·2 answers
  • To move a refrigerator of mass 170 kg into a house, a mover puts it on a dolly and covers the steps leading into the house with
    8·1 answer
  • Which term describes a gap in the geologic record that occurs when sedimentary rocks cover an eroded surface?
    5·2 answers
  • in December which will have a longer day length a country im notheren hemisphere or southern hemisphere​
    12·1 answer
  • Determine the specific heat of a certain metal if a 450 gram sample of it loses 34 500 Joules of heat as its temperature starts
    9·1 answer
  • The oscillating electric field in a plane electromagnetic wave is given by <img src="https://tex.z-dn.net/?f=%7B50%5Csin%20%28%5
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!