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

Author Question: A 140-keV photon strikes an electron and scatters through an angle of 120 from its original ... (Read 55 times)

ETearle

  • Hero Member
  • *****
  • Posts: 580
on: Jul 29, 2018
A 140-keV photon strikes an electron and scatters through an angle of 120 from its original direction.
 
  (melectron = 9.11  10-31 kg, c = 3.00  108 m/s, h = 6.626  10-34 J  s)
  (a) What is the wavelength of the photon before scattering?
  (b) What is the photon wavelength after scattering?

Question 2

A +5.0-C point charge is placed at the 0 cm mark of a meter stick and a -4.0-C charge is placed at the 50 cm mark. What is the net electric field at the 30 cm mark? (k = 1/40 = 8.99  109 N  m2/C2)
 
  A) 4.0  105 N/C
  B) 5.0  105 N/C
  C) 9.0  105 N/C
  D) 1.4  106 N/C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

poopface

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

(a) 8.87 pm (b) 12.50 pm

Answer to Question 2

D


ETearle

  • Hero Member
  • *****
  • Posts: 580
Reply #2 on: Jul 29, 2018
Thanks


poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

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

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Absorption of light energy by an electron Absorption of light energy by an electron
Marine Worm Under An Electron Microscope Marine Worm Under An Electron Microscope
Giardiasis. Colorized electron micrograph of a Giardia protozoan adhering to the surface of an epith Giardiasis. Colorized electron micrograph of a Giardia protozoan adhering to the surface of an epith
The electron-carrying coenzymes NAD+ and FAD The electron-carrying coenzymes NAD+ and FAD
Clostridium difficile: (a) on blood agar and (b) scanning electron microscopy. Clostridium difficile: (a) on blood agar and (b) scanning electron microscopy.
A transmission electron micrograph of the Golgi complex A transmission electron micrograph of the Golgi complex
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library