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 68 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
Wow, this really help

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Paland and Lynch demonstrated the importance of sexual reproduction in reducing the frequency of mal Paland and Lynch demonstrated the importance of sexual reproduction in reducing the frequency of mal
A, Unequal pupils; B, dilated, fixed pupils. A, Unequal pupils; B, dilated, fixed pupils.
Potency and efficacy: (a) drug A has a higher potency than drug B; (b) drug A has a higher efficacy Potency and efficacy: (a) drug A has a higher potency than drug B; (b) drug A has a higher efficacy
Frequency coding in the nervous system: Threshold stimulus. Frequency coding in the nervous system: Threshold stimulus.
Frequency coding: how action potentials convey intensity of stimuli. Frequency coding: how action potentials convey intensity of stimuli.
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: Five phases of cardiac cycle & Atrial contraction

For a complete list of videos, visit our video library