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

Author Question: In grinding a steel knife blade (specific heat = 0.11 cal/g-C), the metal can get as hot as 400.C. ... (Read 76 times)

mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
on: Jul 27, 2018
In grinding a steel knife blade (specific heat = 0.11 cal/g-C), the metal can get as hot as 400.C. If the blade has a mass of 80. g,
 
  what is the minimum amount of water needed at 20C if the water is not to rise above the boiling point when the hot blade is quenched in it?

Question 2

What is the area of a circle of radius 1.119 m?
 
  A) 3.934 m2
  B) 3.93 m2
  C) 3.9338 m2
  D) 3.93378 m2
  E) 3.937 m2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 27, 2018
Answer to Question 1

33 grams

Answer to Question 2

A


mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


macmac

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Regulation of heat exchange in the skin. Regulation of heat exchange in the skin.
The form and orientation of desert plants reduces heat gain from the environment and facilitates coo The form and orientation of desert plants reduces heat gain from the environment and facilitates coo
A single crossover inserts F at a specific locus, which then determines the order of gene transfer A single crossover inserts F at a specific locus, which then determines the order of gene transfer
Time Estimates for Specific Office Procedures Time Estimates for Specific Office Procedures
Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ... Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ...
Commonly Used grades of Austenitic Stainless Steel Commonly Used grades of Austenitic Stainless Steel
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library