« previous next »

Author Question: A very small source of light that radiates uniformly in all directions produces an electric field ... (Read 47 times)

cnetterville

  • Hero Member
  • *****
  • Posts: 547
on: Jul 29, 2018
A very small source of light that radiates uniformly in all directions produces an electric field amplitude of 2.96 V/m at a point 33.0 m from the source.
 
  What is the power output from the source? (c = 3.00  108 m/s, 0 = 4  10-7 T  m/A, 0 = 8.85  10-12 C2/N  m2)

Question 2

A bridge piling has a cross-sectional area of 1.250 m2 and supports a load of 1875 N. What is the stress on the column?
 
  A) 1875 N
  B) 1875 N/m2
  C) 1500 N/m2
  D) 2344 N/m2


bobsmith

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 29, 2018
Answer to Question 1

159 W

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Volvulus. A length of small intestine has twisted around itself, cutting off blood circulation to th Volvulus. A length of small intestine has twisted around itself, cutting off blood circulation to th
effect of light on plant effect of light on plant
Light penetration in Rivers Light penetration in Rivers
For Gulf War veterans, lack of social support in the field is related to postwar depression. The ... For Gulf War veterans, lack of social support in the field is related to postwar depression. The ...
Milk is essential source of calcium Milk is essential source of calcium
Humburger is a good source of niacin , vitamin B6 and pantothenic acid Humburger is a good source of niacin , vitamin B6 and pantothenic acid
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library