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 32 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
Wow, this really help

nothere

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black
An example of a Material Safety Data Sheet (MSDS). An example of a Material Safety Data Sheet (MSDS).
Temperature Changes on Heart Rate Temperature Changes on Heart Rate
Thermodynamic Diagrams and Vertical Temperature Profiles Thermodynamic Diagrams and Vertical Temperature Profiles
Observed global land and ocean surface temperature anomalies since 1850 Observed global land and ocean surface temperature anomalies since 1850
An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ... An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ...
Video: Facilitated Diffusion - Glucose transport

For a complete list of videos, visit our video library