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

Author Question: A totally absorbing surface having an area of 7.7 cm2 faces a small source of sinusoidal ... (Read 56 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
A totally absorbing surface having an area of 7.7 cm2 faces a small source of sinusoidal electromagnetic radiation that is 2.4 m away.
 
  At the surface, the electric field amplitude of the radiation is 84 V/m. (c = 3.00  108 m/s, 0 = 4  10-7 T  m/A, 0 = 8.85  10-12 C2/N  m2)
  (a) What is the radiation pressure exerted on the surface?
  (b) What is the total power output of the source, if it is assumed to radiate uniformly in all directions?

Question 2

In a thermodynamic process involving 7.8 moles of an ideal gas, the gas is at an initial temperature of 24C and has an initial volume of 0.040 m3.
 
  The gas expands adiabatically to a volume of 0.080 m3. For this gas, CV = 12.27 J/mol  K, and the ideal gas constant is R = 8.314 J/mol  K. Calculate the work done by the gas during this expansion.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shewald78

  • Sr. Member
  • ****
  • Posts: 340
Answer to Question 1

(a) 0.031 Pa (b) 680 W

Answer to Question 2

11 kJ




ghost!

  • Member
  • Posts: 560
Reply 2 on: Jul 29, 2018
Wow, this really help


diana chang

  • Member
  • Posts: 288
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

For a complete list of videos, visit our video library