« previous next »

Author Question: A half-ring (semicircle) of uniformly distributed charge Q has radius R. What is the electric ... (Read 186 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
on: Jul 29, 2018
A half-ring (semicircle) of uniformly distributed charge Q has radius R. What is the electric potential at its center?
 
  What will be an ideal response?

Question 2

Given that the wavelengths of visible light range from 400 nm to 700 nm, what is the highest frequency of visible light? (c = 3.0 x 108 m/s)
 
  A) 3.1  108 Hz
  B) 7.5  1014 Hz
  C) 2.3  1020 Hz
  D) 4.3  1014 Hz
  E) 5.0  108 Hz


tofugiraffe

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 29, 2018
Answer to Question 1

Q/4 0R

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

luvbio

  • Hero Member
  • *****
  • Posts: 623
Reply #2 on: Jul 29, 2018
TY


tofugiraffe

  • Sr. Member
  • ****
  • Posts: 319
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species
A mere one-half percent of Americans owns over a quarter of the entire nation’s wealth. Very few ... A mere one-half percent of Americans owns over a quarter of the entire nation’s wealth. Very few ...
A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ... A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can ...
The Cs-131 nuclide has a half-life of 30. years. After 139 years, about 3.0 grams remain. The ... The Cs-131 nuclide has a half-life of 30. years. After 139 years, about 3.0 grams remain. The ...
The radius of the Sun is 6.95 × 108 m. It radiates heat at the rate of 5.32 x 10 The radius of the Sun is 6.95 × 108 m. It radiates heat at the rate of 5.32 x 10
Storm water charge Storm water charge
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library