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 75 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
Thanks for the timely response, appreciate it

at

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

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

Changes in light quality with depth: (a) the rich colours on a shallow coral reef; Changes in light quality with depth: (a) the rich colours on a shallow coral reef;
A young horse in Europe being longed with a surcingle and side reins A young horse in Europe being longed with a surcingle and side reins
Light penetration in Rivers Light penetration in Rivers
Often one of the strongest family bonds is that of mother–daughter. The young artist, an eleventh ... Often one of the strongest family bonds is that of mother–daughter. The young artist, an eleventh ...
Kepler’s Law of Equal Areas Kepler’s Law of Equal Areas
Light micrograph of cells in a strand of Chladophora Light micrograph of cells in a strand of Chladophora
Video: Summation - defined, spatial, temporal & AP generation or not

For a complete list of videos, visit our video library