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

Author Question: An electromagnetic wave with a peak magnetic field component of 3.2 10-7 T carries what average ... (Read 52 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jul 28, 2018
An electromagnetic wave with a peak magnetic field component of 3.2  10-7 T carries what average power per unit area? (m0 = 4p  10-7 Tm/A, e0 = 8.85  10-12 C2/Nm2, and c = 3.00  108 m/s)
 a. 12 W/m2
  c. 2.7 W/m2
  b. 3.0 W/m2
  d. 1.3 W/m2

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. What is the frequency of the fork when the speed of sound is taken to be 340 m/s?
 a. 340 Hz
  c. 1020 Hz
  b. 680 Hz
  d. 170 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

A


PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jul 28, 2018
Excellent

emsimon14

  • Member
  • Posts: 344
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Jean Piaget influenced the field of developmental science more than any other individual. Jean Piaget influenced the field of developmental science more than any other individual.
Moderate to high physical activity in PE classes is one component of a successful prevention effort ... Moderate to high physical activity in PE classes is one component of a successful prevention effort ...
P wave (SA node initiates atrial depolarization). P wave (SA node initiates atrial depolarization).
Field technician in Utah Field technician in Utah
Field Triage Decision Scheme Field Triage Decision Scheme
A test field of GM papaya A test field of GM papaya
Video: Otitis Media

For a complete list of videos, visit our video library