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

Author Question: Two identical metal bars are heated up until they are both glowing. One of them is red hot and the ... (Read 108 times)

Frost2351

  • Hero Member
  • *****
  • Posts: 557
Two identical metal bars are heated up until they are both glowing. One of them is red hot and the other is blue hot. Which one is hotter, the one that glows red or the one that glows blue?
 
  A) the red one
  B) the blue one
  C) We cannot tell without knowing more about the two bars.

Question 2

A flat circular wire loop of area 0.25 m2 carries a current of 5.0 A. This coil lies on a horizontal table with the current flowing in the counterclockwise direction when viewed from above.
 
  At this point, the earth's magnetic field is 1.2  10-5 T directed 60 below the horizontal. What is the magnitude of the torque that the earth's magnetic field exerts on this loop?
  A) 2.5  10-6 N  m
  B) 5.0  10-6 N  m
  C) 7.5  10-6 N  m
  D) 1.0  10-5 N  m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lkoler

  • Sr. Member
  • ****
  • Posts: 358
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




Frost2351

  • Member
  • Posts: 557
Reply 2 on: Jul 29, 2018
:D TYSM


xoxo123

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

For a complete list of videos, visit our video library