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 187 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?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

When the service work is completed, the hoist should be raised slightly and the safety released ... When the service work is completed, the hoist should be raised slightly and the safety released ...
The leaky-barrel model: a settling-point model of eating and body weight homeostasis. The leaky-barrel model: a settling-point model of eating and body weight homeostasis.
How to find the distance of any line segment How to find the distance of any line segment
A 0.51 m aqueous solution of an unknown solute has a boiling point elevation of 0.62°C. The ... A 0.51 m aqueous solution of an unknown solute has a boiling point elevation of 0.62°C. The ...
The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ... The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ...
An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 ... An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 ...
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

For a complete list of videos, visit our video library