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

Author Question: A radio wave transmits 4.8 W/m2 average power per unit area. What is the peak value of the ... (Read 37 times)

savannahhooper

  • Hero Member
  • *****
  • Posts: 576
on: Jul 28, 2018
A radio wave transmits 4.8 W/m2 average power per unit area. What is the peak value of the associated magnetic field? (m0 = 4p  10-7 Tm/A and c = 3.00  108 m/s)
 a. 1.0  10-7 T
  c. 2.0  107 T
  b. 8.4  10-3 T
  d. 30 T

Question 2

A tuning fork is sounded above an adjustable length resonating tube (one end closed), which resonates at a length of 0.250 m and again at 0.750 m. If the tube length were extended further, at what point will the tuning fork again create a resonance condition?
 a. 1.75 m
  c. 1.25 m
  b. 1.50 m
  d. 1.00 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

matt

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


savannahhooper

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


matt

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

How solar-energy power works How solar-energy power works
the fatty acid molecules expose the smallest possible hydrophobic surface area the fatty acid molecules expose the smallest possible hydrophobic surface area
Area of Manatee Population Area of Manatee Population
The Parahippocampal Place Area The Parahippocampal Place Area
This slave burial service, painted by John Antrobus in 1860, reflects an inversion of power relation This slave burial service, painted by John Antrobus in 1860, reflects an inversion of power relation
The diameter of a semicircle is 4 miles. What is the semicircle's area? The diameter of a semicircle is 4 miles. What is the semicircle's area?
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library