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

Author Question: A certain material is in a room at 27C. If the absolute temperature (K) of the material is tripled, ... (Read 83 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
on: Jul 28, 2018
A certain material is in a room at 27C. If the absolute temperature (K) of the material is tripled, its resistance quadruples. (Water freezes at 273 K.) What is the value for a, the temperature coefficient of resistivity?
 a. 0.0050 (C)-1
  c. 1 (C)-1
  b. 0.0025 (C)-1
  d. 3 (C)-1

Question 2

Atmospheric pressure is 1.0  105 N/m2, and the density of air is 1.29 kg/m3 . If the density of air is constant as you get higher and higher, calculate the height of the atmosphere needed to produce this pressure.
 a. 7900 m
  c. 1260 m
  b. 77,000 m
  d. 10,300 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jackie

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

A

Answer to Question 2

A


anshika

  • Member
  • Posts: 510
Reply 2 on: Jul 28, 2018
Excellent

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Ranges of normal temperature values Ranges of normal temperature values
Body Temperature Responses Body Temperature Responses
Types of suture material. Types of suture material.
The Effect of Temperature on delta G for a process or reactions The Effect of Temperature on delta G for a process or reactions
Temperature gradient generates a global pattern of circulation Temperature gradient generates a global pattern of circulation
A melting profile shows the increase in UV absorption versus temperature A melting profile shows the increase in UV absorption versus temperature
Video: Summary of glucose catabolism

For a complete list of videos, visit our video library