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

Author Question: If a surface has a work function of 1.5 eV and photons of energy 2.7 eV are shone on the surface, ... (Read 78 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
on: Jul 29, 2018
If a surface has a work function of 1.5 eV and photons of energy 2.7 eV are shone on the surface, what is a possible kinetic energy of the electrons emitted from the surface?
 
  A)
 
  3.0 eV
  B)
 
  2.0 eV
  C)
 
  4.0 eV
  D)
 
  1.0 eV
  E)
 
  No electrons are emitted.

Question 2

An element has an atomic mass number of 14 and atomic number 6. (a) How many protons does it have? (b) How many neutrons does it have?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sabina576

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

(a) 6
(b) 8


imowrer

  • Member
  • Posts: 514
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

A Mitochondrion Converts Energy from Fuel Molecules into ATP A Mitochondrion Converts Energy from Fuel Molecules into ATP
Men and women work the same number of hours a week, but men spend more time on paid work, and women ... Men and women work the same number of hours a week, but men spend more time on paid work, and women ...
How to sketch a complicated function using calculus How to sketch a complicated function using calculus
How to find the domain and range of a function (Part 1) How to find the domain and range of a function (Part 1)
Binding of a chylomicron to lipoprotein lipase on the inner surface of a capillary Binding of a chylomicron to lipoprotein lipase on the inner surface of a capillary
Structure and function of the Gal4p activator Structure and function of the Gal4p activator
Video: Atrial natriuretic peptide (vasodilation) & Aldosterone

For a complete list of videos, visit our video library