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

Author Question: The current in an electron beam in a cathode-ray tube is measured to be 280 A. How many electrons ... (Read 248 times)

daltonest1984

  • Hero Member
  • *****
  • Posts: 536
on: Jul 28, 2018
The current in an electron beam in a cathode-ray tube is measured to be 280 A. How many electrons hit the screen in 50 s? (e = 1.6  10-19 C)
 a. 2.2  1011 electrons
  c. 8.8  1015 electrons
  b. 8.8  1016 electrons
  d. 2.2  1015 electrons

Question 2

According to Newton's second law, the angular acceleration experienced by an object is directly proportional to:
 a. its moment of inertia. b. the net applied torque.
  c. the object's size.
  d. choices a and b above which are both valid.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jackie

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


daltonest1984

  • Hero Member
  • *****
  • Posts: 536
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


jackie

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Insects Under the Electron Microscope Insects Under the Electron Microscope
Benzene delocalized electrons Benzene delocalized electrons
Two methods by which cells migrate in the developing neural tube: somal translocation and ... Two methods by which cells migrate in the developing neural tube: somal translocation and ...
Drawing of Central PompeII In Its Current State Drawing of Central PompeII In Its Current State
n electron micrograph revealing nucleosomes appearing as “beads" n electron micrograph revealing nucleosomes appearing as “beads"
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library