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 138 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
YES! Correct, THANKS for helping me on my review

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

The rate of evolution in short­ and long­lived plants The rate of evolution in short­ and long­lived plants
Homeschooling has come a long way. These children are performing in a musical at the annual ... Homeschooling has come a long way. These children are performing in a musical at the annual ...
The air flowing into the engine can be directed through long or short runners for best performance ... The air flowing into the engine can be directed through long or short runners for best performance ...
A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ... A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ...
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
Video: Glycolysis - Introduction to ATP and the burning of sugar

For a complete list of videos, visit our video library