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

Author Question: A steel cable spanning a river is 200.000 m long when the temperature is 20.C. What will be its ... (Read 50 times)

leo leo

  • Hero Member
  • *****
  • Posts: 566
on: Jul 27, 2018
A steel cable spanning a river is 200.000 m long when the temperature is 20.C. What will be its length when the temperature drops to 0C? (The coefficient of thermal expansion of steel is 12.  10-6K-1.)
 
  What will be an ideal response?

Question 2

How far apart should two protons be if the electrical force of repulsion is equal to the weight (attraction to the Earth) of one of the protons?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

momtoalll

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 27, 2018
Answer to Question 1

199.952 m

Answer to Question 2

12. cm


leo leo

  • Member
  • Posts: 566
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Fast-flowing waters of the Humber River, Newfoundland, are a challenge to Atlantic salmon migrating Fast-flowing waters of the Humber River, Newfoundland, are a challenge to Atlantic salmon migrating
The Role of Summation in Long-Term Potentiation The Role of Summation in Long-Term Potentiation
Pacific Decadal Oscillation: Temperature in degree Celsius Pacific Decadal Oscillation: Temperature in degree Celsius
Composition of a long bone Composition of a long bone
The Internal Anatomy of a Long Bone The Internal Anatomy of a Long Bone
Effects of Temperature on Gene Expression Effects of Temperature on Gene Expression
Video: Adolescent Diabetes

For a complete list of videos, visit our video library