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

Author Question: A horizontal metal bar rotates at a constant angular velocity w about a vertical axis through one of ... (Read 327 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 27, 2018
A horizontal metal bar rotates at a constant angular velocity w about a vertical axis through one of its ends while in a constant magnetic field B that is directed down. The emf induced between the two ends of the bar is
 
  A) constant and proportional to the product B .
  B) constant and proportional to the product B 2.
  C) constant and proportional to the product B2 2.
  D) variable with a maximum of B .
  E) variable with a maximum of B 2.

Question 2

One beam of coherent light travels path P1 in arriving at point Q and another coherent beam travels path P2 in arriving at the same point. If these two beams are to interfere destructively, the path difference P1 - P2 must be equal to
 
  A) an odd number of half-wavelengths.
  B) a whole number of wavelengths.
  C) zero.
  D) a whole number of half-wavelengths.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

essyface1

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


rmenurse

  • Hero Member
  • *****
  • Posts: 513
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


essyface1

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

The planes of the body. The sagittal plane is vertical from front to back, the frontal plane is vert The planes of the body. The sagittal plane is vertical from front to back, the frontal plane is vert
Vertical filing systems offer an alternative to traditional upright storage systems Vertical filing systems offer an alternative to traditional upright storage systems
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
Maternal bicoid patterning of the embryo along the anterior–posterior axis Maternal bicoid patterning of the embryo along the anterior–posterior axis
Video: Membrane Protein and Facilitated Transport (Passive Vs Active)

For a complete list of videos, visit our video library