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

Author Question: Two equal point charges Q are separated by a distance d. One of the charges is released and moves ... (Read 184 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
on: Jul 29, 2018
Two equal point charges Q are separated by a distance d. One of the charges is released and moves away from the other due only to the electrical force between them.
 
  When the moving charge is a distance 3d from the other charge, what is its kinetic energy?

Question 2

A heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. When you gently pluck the upper end of the wire, a pulse travels down the wire and returns 7.84 ms later, having reflected off the lower end.
 
  The speed of sound in the room is 344 m/s, and the stone is heavy enough to prevent the lower end of the wire from moving. If the wire is vibrating in its second overtone, what is the frequency of the sound it will produce?
  A) 383 Hz B) 128 Hz C) 191 Hz D) 255 Hz E) 765 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 29, 2018
Answer to Question 1

Q2/6 0d

Answer to Question 2

A


crobinson2013

  • Hero Member
  • *****
  • Posts: 535
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro
Location of point of maximum effort Location of point of maximum effort
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Nancy Rubins, Pleasure Point. Nancy Rubins, Pleasure Point.
effect of pH on ionization and charges of amines and carboxylic acid effect of pH on ionization and charges of amines and carboxylic acid
An aqueous solution has a normal boiling point of 103.0C. What is the freezing point of this ... An aqueous solution has a normal boiling point of 103.0C. What is the freezing point of this ...
Video: Secondary and tertiary levels of protein structure Animation

For a complete list of videos, visit our video library