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

Author Question: The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 ... (Read 434 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


mynx

  • Member
  • Posts: 555
Reply 2 on: Jul 29, 2018
Wow, this really help

mcabuhat

  • Member
  • Posts: 344
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio
Average national IQs according to IQ and Global Inequality Average national IQs according to IQ and Global Inequality
Vector Problem Vector Problem
Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
Mathematics Vector Icon Mathematics Vector Icon
Cell Division Vector Icon Cell Division Vector Icon
Video: Calvin cycle (The light-independent reactions )

For a complete list of videos, visit our video library