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 269 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?

The FDA recognizes 118 routes of administration.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Marine myths measured Marine myths measured
Endotracheal Tube Endotracheal Tube
Drawing of Central PompeII In Its Current State Drawing of Central PompeII In Its Current State
Transmission electron microscope Transmission electron microscope
A monochromatic beam of light of wavelength 600 nm is incident normally on a diffraction ... A monochromatic beam of light of wavelength 600 nm is incident normally on a diffraction ...
Video: How eudicots (true dicots) differ from monocots Animation

For a complete list of videos, visit our video library