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 169 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?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

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

An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio
ARD Being Released from a Mine Adit ARD Being Released from a Mine Adit
Ileal conduit. A segment of ileum is separated from the small intestine and formed into a tubular ... Ileal conduit. A segment of ileum is separated from the small intestine and formed into a tubular ...
The slope of the curve y = ax^3 - bx^2 + cx - 3 at x = 2 is 5. If the point of inflection of the cur The slope of the curve y = ax^3 - bx^2 + cx - 3 at x = 2 is 5. If the point of inflection of the cur
The slope of the curve y = ax^3 - bx^2 + cx - 3 at x = 2 is 5. If the point of inflection of the cur The slope of the curve y = ax^3 - bx^2 + cx - 3 at x = 2 is 5. If the point of inflection of the cur
A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel ... A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel ...
Video: Endocytosis -Types and Phagocytosis

For a complete list of videos, visit our video library