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

Author Question: The current in a long wire creates a magnetic field in the region around the wire. How is the ... (Read 189 times)

Zulu123

  • Hero Member
  • *****
  • Posts: 525
on: Jul 28, 2018
The current in a long wire creates a magnetic field in the region around the wire. How is the strength of the field at distance r from the wire's center related to the magnitude of the field?
 a. field directly proportional to r
  c. field directly proportional to r2
  b. field inversely proportional to r2
  d. field inversely proportional to r

Question 2

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 8.0 cm. If a timer is started when its displacement from equilibrium is a maximum (hence x = 8 cm when t = 0), what is the displacement of the mass when t = 3.7 s?
 a. zero
  b. 0.025 m
  c. 0.049 m
  d. 0.080 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shailee

  • Sr. Member
  • ****
  • Posts: 392
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


Zulu123

  • Member
  • Posts: 525
Reply 2 on: Jul 28, 2018
Gracias!

coreycathey

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

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

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

The U.S. Long-Term Ecological Research (LTER) network. The U.S. Long-Term Ecological Research (LTER) network.
Magnetic resonance imaging (MRI). The MRI lab includes the scanning instrument and a computer statio Magnetic resonance imaging (MRI). The MRI lab includes the scanning instrument and a computer statio
Levels of Processing Affects Long-Term but not Short-Term Memory Levels of Processing Affects Long-Term but not Short-Term Memory
Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ... Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ...
Drawing of Central PompeII In Its Current State Drawing of Central PompeII In Its Current State
Long division of polynomials Long division of polynomials
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

For a complete list of videos, visit our video library