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 271 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?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui
PEG tube PEG tube
Wintrobe tube and Westergren tests are used to measure the ESR. Wintrobe tube and Westergren tests are used to measure the ESR.
Average Hourly Earnings of U.S. Workers in Current and Constant Dollars Average Hourly Earnings of U.S. Workers in Current and Constant Dollars
Electron configuration and how many electrons are needed to achieve the nearest noble-gas ... Electron configuration and how many electrons are needed to achieve the nearest noble-gas ...
Electron Transfer Phosphorylation Electron Transfer Phosphorylation
Video: Nucleic acid digestion - brush border enzymes, end products & transport mechanism

For a complete list of videos, visit our video library