This topic contains a solution. Click here to go to the answer

Author Question: The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 ... (Read 511 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 W/m2.
 
  The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. How much total electromagnetic energy falls on the area during 1.0 minute? (c = 3.0 x 108 m/s, 0 = 4  10-7 T  m/A, 0 = 8.85  10-12 C2/N  m2)
  A) 210 J B) 170 J C) 340 J D) 250 J E) 300 J

Question 2

The absolute temperature of an ideal gas is directly proportional to which of the following quantities?
 
  A) the average speed of its molecules
  B) the average momentum of its molecules
  C) the average kinetic energy of its molecules
  D) the mass of its molecules
  E) It is proportional to all of the above quantities.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

spencer.martell

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

B

Answer to Question 2

C




mynx

  • Member
  • Posts: 555
Reply 2 on: Jul 29, 2018
:D TYSM


xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Gracias!

 

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?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

For a complete list of videos, visit our video library