« previous next »

Author Question: At room temperature (20.C) the area of a hole in a sheet of material is 5.505 cm2. When heated to ... (Read 67 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
At room temperature (20.C) the area of a hole in a sheet of material is 5.505 cm2. When heated to 830.C the area increases by 29.0 mm2.
 
  (a) What is the thermal coefficient of linear expansion for the material?
  (b) If the temperature had decreased to -76. Fahrenheit, what would be the area of the hole?

Question 2

What is the average power if the current is Io sin(t) and the voltage is Vo sin(t) ?
 
  What will be an ideal response?


Andromeda18

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 32.5  10-6 C-1
(b) 5.476 cm2

Answer to Question 2

(IoVo) /2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Examples of structures in which extensive surface area is important for function. Examples of structures in which extensive surface area is important for function.
A Coronal Hole A Coronal Hole
Measuring Temperature Using a Heat-Sensitive Wearable Thermometer Measuring Temperature Using a Heat-Sensitive Wearable Thermometer
Case of ONJ that occurred spontaneously. Note the white area, which is exposed necrotic bone. Case of ONJ that occurred spontaneously. Note the white area, which is exposed necrotic bone.
Clear the inguinal catchment area. Face the side of the table at recipient’s waist. Place your ... Clear the inguinal catchment area. Face the side of the table at recipient’s waist. Place your ...
How to use right endpoints to find an expression showing the area of a function How to use right endpoints to find an expression showing the area of a function
Video: ETC Protein Complexes & Chemiosmosis (Total ATP Production and ATP Synthase)

For a complete list of videos, visit our video library