« previous next »

Author Question: A very small source of light that radiates uniformly in all directions produces an electric field ... (Read 54 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?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Comparison of small subunit rRNA gene sequences of vertebrate, invertebrate chordate, and invertebra Comparison of small subunit rRNA gene sequences of vertebrate, invertebrate chordate, and invertebra
Sterile field instructions Sterile field instructions
Because of immature visual-motor coordination, young children find it hard to throw and catch small ... Because of immature visual-motor coordination, young children find it hard to throw and catch small ...
Predators adapt to extreme water pressure and the absence of light Predators adapt to extreme water pressure and the absence of light
. Calculate the net electric field at point B . Calculate the net electric field at point B
A racing car accelerates uniformly from rest along a straight track. This track has markers ... A racing car accelerates uniformly from rest along a straight track. This track has markers ...
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

For a complete list of videos, visit our video library