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

Author Question: Mathilda collects photoelectric data in her physics laboratory. She measures a stopping potential ... (Read 60 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
on: Jul 29, 2018
Mathilda collects photoelectric data in her physics laboratory.
 
  She measures a stopping potential of 5.82 volts for radiation of wavelength 100. nm, and 17.99 volts stops 50.0 nm.
  (a) What is the work function for the material in eV?
  (b) From her data one determines Planck's constant to be what?

Question 2

Pressure in a fluid decreases with depth.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Perkypinki

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 6.70 eV
(b) 6.50  10-34 J-s

Answer to Question 2

FALSE


anjilletteb

  • Member
  • Posts: 569
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

shailee

  • Member
  • Posts: 392
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
Types of Laboratory Tests Types of Laboratory Tests
Common Laboratory Tests and Their Normal Values Common Laboratory Tests and Their Normal Values
Physics 12 - Interpreting Motion Physics 12 - Interpreting Motion
Physics- Density, Pressure and Pascal's Principle Physics- Density, Pressure and Pascal's Principle
Physics Physics
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library