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

Author Question: A very light 1.00-m wire consists of two segments of equal length, one of steel (Young's modulus is ... (Read 82 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Jul 29, 2018
A very light 1.00-m wire consists of two segments of equal length, one of steel (Young's modulus is 2.00  1011 N/m2 )
 
  and one of brass (Young's modulus is 9.0  1010 N/m2 ). The steel segment is 1.50 mm in diameter, and the brass segment has twice this diameter. When a weight w is hung from the ceiling by this wire, the steel segment stretches by 1.10 mm. Find the weight w.
  A) 190 N
  B) 390 N
  C) 780 N
  D) 1000 N
  E) 3100 N

Question 2

A rubber rod rubbed with fur becomes
 
  A) positively charged.
  B) negatively charged.
  C) both
  D) neither


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

thall411

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

Answer: B


Arii_bell

  • Member
  • Posts: 596
Reply 2 on: Jul 29, 2018
Wow, this really help

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Vertical structuring of the oceans is associated with substantial variation in light and temperature Vertical structuring of the oceans is associated with substantial variation in light and temperature
Three young devils sunbathing Three young devils sunbathing
The light produced by fireflies is the result of a reaction The light produced by fireflies is the result of a reaction
A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ... A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ...
(a) The characteristic karyotype of Klinefelter syndrome. (b) The young man (left) in these photos h (a) The characteristic karyotype of Klinefelter syndrome. (b) The young man (left) in these photos h
The eukaryotic cell cycle consists of two parts: (1) interphase and (2) mitosis followed by cytokine The eukaryotic cell cycle consists of two parts: (1) interphase and (2) mitosis followed by cytokine
Video: Calvin Cycle Explained!

For a complete list of videos, visit our video library