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

Author Question: A current in a long, straight wire produces a magnetic field. The magnetic field lines: a. go out ... (Read 248 times)

RRMR

  • Hero Member
  • *****
  • Posts: 557
on: Jul 28, 2018
A current in a long, straight wire produces a magnetic field. The magnetic field lines:
 a. go out from the wire to infinity.
  b. form circles that go around the wire.
  c. come in from infinity to the wire.
  d. form circles that pass through the wire.

Question 2

A ping-pong ball has an average density of 0.140 g/cm3 and a diameter of 3.80 cm. What force would be required to keep the ball completely submerged under water?
 a. 0.484 N
  c. 0.516 N
  b. 0.242 N
  d. 0.258 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ju

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


RRMR

  • Member
  • Posts: 557
Reply 2 on: Jul 28, 2018
Gracias!

billybob123

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

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?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

A Snapshot of the Sun’s Global Magnetic Field A Snapshot of the Sun’s Global Magnetic Field
Secondary intravenous lines: (a) a tandem intravenous alignment Secondary intravenous lines: (a) a tandem intravenous alignment
Optical microscopes are commonly configured for bright-field (transmitted), phas Optical microscopes are commonly configured for bright-field (transmitted), phas
Types of Long-Term Memories Types of Long-Term Memories
Long division for polynomials Long division for polynomials
A field study of guppy life history evolution. A field study of guppy life history evolution.
Video: Fetal Development of the Cardiovascular System

For a complete list of videos, visit our video library