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

Author Question: When light of wavelength 350 nm is incident on a metal surface, the stopping potential of the ... (Read 61 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
on: Jul 29, 2018
When light of wavelength 350 nm is incident on a metal surface, the stopping potential of the photoelectrons is measured to be 0.500 V.
 
  What is the work function of this metal? (c = 3.00  108 m/s, h = 6.626  10-34 J  s, 1 eV = 1.60  10-19 J)
  A) 3.05 eV B) 4.12 eV C) 0.500 eV D) 3.54 eV

Question 2

A jogger is running outdoors on a cold day when the temperature is -20.0C. She is breathing at the rate of 25 breaths per minute, and each time she breathes in she inhales 0.00450 m3 of air.
 
  How much heat does she lose from breathing during 20.0 minutes of jogging if the air in her lungs is heated to her body temperature of 37.0C before it is exhaled? The specific heat of air is 1020 J/kg  K and the density of air under typical conditions is 1.29 kg/m3.
  A) 169 kJ
  B) 278 kJ
  C) 354 kJ
  D) 431 kJ
  E) 543 kJ
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aidanmbrowne

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly


CharlieWard

  • Member
  • Posts: 578
Reply 2 on: Jul 29, 2018
Excellent

peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Surface Fronts and Upper-Level Patterns: Cold Fronts and the Formation of Upper-Level Troughs Surface Fronts and Upper-Level Patterns: Cold Fronts and the Formation of Upper-Level Troughs
Movement of Sodium and Potassium Ions During the Action Potential Movement of Sodium and Potassium Ions During the Action Potential
Transduction of Light by Photoreceptors Transduction of Light by Photoreceptors
Suggested Antibiotic Prophylaxis Regimens in Patients at Potential Increased Risk of Hematogenous ... Suggested Antibiotic Prophylaxis Regimens in Patients at Potential Increased Risk of Hematogenous ...
Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg. Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg.
The Equinox Fabrication Plant suffered a fire incident in August, and most of the records for ... The Equinox Fabrication Plant suffered a fire incident in August, and most of the records for ...
Video: New DNA Strand Replication

For a complete list of videos, visit our video library