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

Author Question: A horizontal metal bar that is 2.0 m long rotates at a constant angular velocity of 2.0 rad/s about ... (Read 54 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
A horizontal metal bar that is 2.0 m long rotates at a constant angular velocity of 2.0 rad/s about a vertical axis through one of its ends while in a constant magnetic field of 5  10-5 T.
 
  If the magnetic field vector points straight down, what emf is induced between the two ends of the bar?
  A) 1.6  10-4 V
  B) 5.6  10-3 V
  C) 2.0  10-4 V
  D) 7.0  10-4 V
  E) 3.6  10-3 V

Question 2

The focal length of a concave mirror is 20 cm. What is its radius of curvature?
 
  A) 10 cm
  B) 40 cm
  C) -40 cm
  D) 20 cm
  E) -20 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

komodo7

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

B


CQXA

  • Member
  • Posts: 546
Reply 2 on: Jul 27, 2018
Wow, this really help

mochi09

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

The U.S. Long-Term Ecological Research (LTER) network. The U.S. Long-Term Ecological Research (LTER) network.
Blue whale skeleton, outside the Long Marine Laboratory at the University of California, Santa Cruz Blue whale skeleton, outside the Long Marine Laboratory at the University of California, Santa Cruz
The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h
A single overhead camshaft engine with a timing belt that also rotates the water pump. A single overhead camshaft engine with a timing belt that also rotates the water pump.
The Solar Constant The Solar Constant
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
Video: Leukemia

For a complete list of videos, visit our video library