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

Author Question: Two long parallel wires that are 0.30 m apart carry currents of 5.0 A and 8.0 A in the opposite ... (Read 33 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
Two long parallel wires that are 0.30 m apart carry currents of 5.0 A and 8.0 A in the opposite direction.
 
  Find the magnitude of the force per unit length that each wire exerts on the other wire and indicate if the force is attractive or repulsive. (0 = 4  10-7 T  m/A)
  A) 7.2  10-5 N attractive
  B) 2.7  10-5 N repulsive
  C) 3.4  10-5 N attractive
  D) 2.7  10-5 N attractive
  E) 7.2  10-5 N repulsive

Question 2

The following items are positioned in sequence: A source of a beam of natural light of intensity I0, three ideal polarizers A, B, and C; and an observer.
 
  Polarizer axis angles are measured clockwise from the vertical, as viewed by the observer. The axis angle of polarizer A is set at 0 (vertical), and the axis angle of polarizer C is set at 50. The axis angle of polarizer B is set at 120. What is ratio of the intensity of the beam at the observer to the intensity I0 of the source?
  A) 0.015
  B) 0.020
  C) 0.025
  D) 0.030
  E) 0.035
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amcvicar

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


kellyjaisingh

  • Member
  • Posts: 540
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Anopheles larva from southern Germany, about 8 mm long Anopheles larva from southern Germany, about 8 mm long
This girl has a long leg cast, which was applied after surgery to correct her clubfoot. This girl has a long leg cast, which was applied after surgery to correct her clubfoot.
Associative Long-Term Potentiation Associative Long-Term Potentiation
Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
The shut-off switch on a GM parallel hybrid truck is green because this system uses 42 volts instead ... The shut-off switch on a GM parallel hybrid truck is green because this system uses 42 volts instead ...
Long-range forecasts Long-range forecasts
Video: Introduction to Herpes

For a complete list of videos, visit our video library