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

Author Question: For safety in climbing, a mountaineer uses a 50-m long nylon rope that is 1.0 cm in diameter. When ... (Read 39 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jul 28, 2018
For safety in climbing, a mountaineer uses a 50-m long nylon rope that is 1.0 cm in diameter. When supporting a 90-kg climber, the rope elongates 1.6 m. Find the Young's modulus for the rope material.

Question 2

Aluminum Rod1 has a length L and a diameter d. Aluminum Rod2 has a length 2L and a diameter 2d. If Rod1 is under tension T and Rod2 is under tension 2T, how do the changes in length of the two rods compare?
 a. They are the same.
  b. Rod1 has double the change in length that Rod2 has.
  c. Rod2 has double the change in length that Rod1 has.
  d. Rod1 has quadruple the change in length that Rod2 has.
  e. Rod2 has quadruple the change in length that Rod1 has.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

raili21

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

3.51  108 N/m2

Answer to Question 2

a


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

TheNamesImani

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Varieties of Long-Term Memory Varieties of Long-Term Memory
Teaching women about the safety of drug use during pregnancy is an essential component of nursing ... Teaching women about the safety of drug use during pregnancy is an essential component of nursing ...
Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ... Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ...
Hulda Crooks, 91 climbing Mt. Fuji mountain Hulda Crooks, 91 climbing Mt. Fuji mountain
The Hotair long noncoding RNA regulates chromatin The Hotair long noncoding RNA regulates chromatin
Experiments showing that long- or short-day plants flower in response to night length. Each horizont Experiments showing that long- or short-day plants flower in response to night length. Each horizont
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library