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
Hunter-Best [27]
3 years ago
10

A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. it has an electr

ical capacity of 3000.0 μf and is charged to a potential difference of 87.0 v. calculate the amount of energy stored in the capacitor.
Physics
1 answer:
barxatty [35]3 years ago
5 0

The energy stored in a capacitor is given by:

U=\frac{1}{2}CV^2

where C is the capacitance and V is the potential difference applied across the capacitor.


In this problem, we have:

C=3000 \mu F= 3000 \cdot 10^{-6} F

V=87.0 V

Substituting the numbers into the equation, we find the energy stored:

U=\frac{1}{2}(3000 \cdot 10^{-6} F)(87 V)^2=11.4 J

You might be interested in
In the aftermath of an intense earthquake, the earth as a whole "rings" with a period of 54 minutes.
lawyer [7]

The frequency of the oscillation in hertz is calculated to be 0.00031 Hz.

The frequency of a wave is defined as the number of cycles completed per second while the period refers to the time taken to complete a cycle. The frequency is the inverse of period.

So;

Period(T) = 54 minutes or 3240 seconds

Frequency (f) = T-1 = 1/T = 1/3240 seconds = 0.00031 Hz

Learn more: brainly.com/question/14588679

6 0
2 years ago
A 1.50-V battery supplies 0.414 W of power to a small flashlight. If the battery moves 4.93 1020 electrons between its terminals
slamgirl [31]

Answer:

2.86×10⁻¹⁸ seconds

Explanation:

Applying,

P = VI................ Equation 1

Where P = Power, V = Voltage, I = Current.

make I the subject of the equation

I = P/V................ Equation 2

From the question,

Given: P = 0.414 W, V = 1.50 V

Substitute into equation 2

I = 0.414/1.50

I = 0.276 A

Also,

Q = It............... Equation 3

Where Q = amount of charge, t = time

make t the subject of the equation

t = Q/I.................. Equation 4

From the question,

4.931020 electrons has a charge of (4.931020×1.6020×10⁻¹⁹) coulombs

Q = 7.899×10⁻¹⁹ C

Substitute these value into equation 4

t =  7.899×10⁻¹⁹/0.276

t = 2.86×10⁻¹⁸ seconds

5 0
3 years ago
A truck accelerates From being stopped to 18 m/s in 5.5 seconds. A bus accelerates from being stopped to 24 m/s in 6.0 seconds.
Mars2501 [29]

Answer:

The bus

Explanation:

a = (v-u)/t  

Where

a = acceleration

v = final velocity

u = initial velocity

t = time taken

For truck to get its acceleration,

a = (18-0)/5.5 = 3.27 ms⁻²

For bus to get its acceleration,

a = (24-0)/6 = 4 ms⁻²

As 4 > 3.27 bus has a greater acceleration.

5 0
3 years ago
A cinder cone is formed from relatively ________ viscosity magma with a ________ gas content. low; high high; high low; low high
kenny6666 [7]

<span>A cinder cone is formed from relatively low viscosity magma with a high gas content. Cinder cones are formed by the volcanic ash, cinders that are formed around the volcanic vent. Cinder cones have a bowl shaped crater and the shape of the cinder cones depend on the ejected particles that formed the cinder.</span>

5 0
3 years ago
The energy transported by a mechanical wave is indicated by which property of the wave?
Ksenya-84 [330]
Your answer would be Amplitude :)
5 0
3 years ago
Read 2 more answers
Other questions:
  • The density of an object is 1.23 g/cm3. In which of the following materials will it float
    6·2 answers
  • How many gallons of water per day does the average American family of 4 use?
    13·2 answers
  • A 15,000-watt radio station transmits at 1700 kHz.
    15·2 answers
  • How does the mass of an object change when it acquires a positive charge? 1. decreases 2. more information is needed. 3. increas
    7·1 answer
  • Are the correct? PLEASE HELP ASAP
    10·2 answers
  • i learned that kinetic energy is energy when an object is actually moving not including the moving particles. i also learned tha
    10·1 answer
  • a 1 kg emery stone measuring 20 cm redium, is rotating with an angular speed of 39 revolutions per minute, when the motor is tur
    13·1 answer
  • To calculate the change in kinetic energy, you must know the force as a function of _______. The work done by the force causes t
    11·1 answer
  • The towel has better blank
    12·1 answer
  • Can you please give the real answers! ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!