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

Author Question: One of the harmonics of a string fixed at both ends has a frequency of 52.2 Hz and the next higher ... (Read 60 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
on: Jul 29, 2018
One of the harmonics of a string fixed at both ends has a frequency of 52.2 Hz and the next higher harmonic has a frequency of 60.9 Hz. What is the fundamental frequency of the string?
 
  A) 26.1 Hz
  B) 8.7 Hz
  C) 4.35 Hz
  D) 30.4 Hz
  E) 17.4 Hz

Question 2

A photocathode having a work function of 2.8 eV is illuminated with monochromatic electromagnetic radiation whose photon energy is 4.0 eV.
 
  What is the threshold (cutoff) frequency for photoelectron production? (1 eV = 1.60  10-19 J, h = 6.626  10-34 J  s)
  A) 6.8  1014 Hz
  B) 2.9  1014 Hz
  C) 7.7  1014 Hz
  D) 8.6  1014 Hz
  E) 9.7  1014 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


ts19998

  • Member
  • Posts: 531
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

bigsis44

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

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

A, Unequal pupils; B, dilated, fixed pupils. A, Unequal pupils; B, dilated, fixed pupils.
Frequency distribution curve: interpatient variability in drug response. Frequency distribution curve: interpatient variability in drug response.
Loudness and Frequency Loudness and Frequency
If the gauge reading is now much higher than the first test results, then the cause of the low ... If the gauge reading is now much higher than the first test results, then the cause of the low ...
Higher-Level Thinking Skills Used in Massage Therapy Higher-Level Thinking Skills Used in Massage Therapy
A small 355-g box hangs from one end of a thin light string that goes over a frictionless ... A small 355-g box hangs from one end of a thin light string that goes over a frictionless ...
Video: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

For a complete list of videos, visit our video library