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

Author Question: A coil is placed in a magnetic field and has a flux FB through it. The coil is stressed so that its ... (Read 135 times)

@Brianna17

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
A coil is placed in a magnetic field and has a flux FB through it. The coil is stressed so that its area reduces to 60 of its original value. If the plane of the coil stays the same and the flux through it remains the same, how must the magnetic field change?
 a. It must increase by 60.
  c. It must decrease by 40.
  b. It must increase by 120.
  d. It must increase by 67.

Question 2

A 0.20-kg mass is oscillating on a spring over a horizontal, frictionless surface. When it is at a displacement of 2.6 cm from equilibrium, it has a kinetic energy of 2.7 J and a spring potential energy of 2.2 J. What is the maximum speed of the mass during its oscillation?
 a. 3.7 m/s
  c. 6.0 m/s
  b. 4.7 m/s
  d. 7.0 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Brenm

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

D


@Brianna17

  • Member
  • Posts: 550
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Matching Magnetic Signatures—Stripes Matching Magnetic Signatures—Stripes
Preparation of sterile field 4 Preparation of sterile field 4
This distributor ignition system uses a remotely mounted ignition coil. This distributor ignition system uses a remotely mounted ignition coil.
If the coil is working, the end of the magnetic pickup tool will move with the changes in the ... If the coil is working, the end of the magnetic pickup tool will move with the changes in the ...
Set the meter to read ohms (V) and measure the resistance of the relay coil. The usual reading for ... Set the meter to read ohms (V) and measure the resistance of the relay coil. The usual reading for ...
Magnetic Reversals and Seafloor Spreading Magnetic Reversals and Seafloor Spreading
Video: Integumentary Anatomy

For a complete list of videos, visit our video library