This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Very large capacitors have been considered as a means for storing electrical energy. If we ... (Read 77 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
on: Jul 28, 2018
Very large capacitors have been considered as a means for storing electrical energy. If we constructed a very large parallel-plate capacitor of plate area 10 m2 using paper (k = 3.7) of thickness 1.0 mm as a dielectric, how much electrical energy would it store at a plate voltage of 5000 V? (e0 = 8.85  10-12 C2/Nm2)
 a. 4.1 J
  c. 0.41 J
  b. 8200 J
  d. 82,000 J

Question 2

Starting from rest, a wheel undergoes constant angular acceleration for a period of time T. At what time after the start of rotation does the wheel reach an angular speed equal to its average angular speed for this interval?
 a. 0.25T
  c. 0.67T
  b. 0.50T
  d. 0.71T


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

31809pancho

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


dejastew

  • Member
  • Posts: 562
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Models for the electron orbitals and energy shells of carbon Models for the electron orbitals and energy shells of carbon
shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae shelducks, genus Tadorna, are a group of large birds in the Tadorninae subfamily of the Anatidae
Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and
Fossil Fuels Energy Yield and Pollutants—Comparison Fossil Fuels Energy Yield and Pollutants—Comparison
Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy. Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy.
Gibs free energy for hydrolysis of some phosphate compounds Gibs free energy for hydrolysis of some phosphate compounds
Video: Electrocardiogram Examination

For a complete list of videos, visit our video library