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

Author Question: A beam of electrons moves at velocity . The number of particles per unit volume in the beam of area ... (Read 262 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Aug 6, 2020
A beam of electrons moves at velocity . The number of particles per unit volume in the beam of area A is ρ. If we imagine a cylindrical Gaussian surface of radius r and length centered on the beam, the electron flux through the surface is

◦
0.

◦
ρvfA.

◦
2ρvfA.

◦
ρvf(A+2πr).

◦
2ρvf(A+πr).
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by serike on Aug 6, 2020

amandalm

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


serike

  • Member
  • Posts: 542
Reply 2 on: Aug 6, 2020
Wow, this really help

marict

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Velocity Velocity
How to find the area of a function using limits and Riemann sums How to find the area of a function using limits and Riemann sums
Schematic depiction of the action of tryptophan synthase in one functional unit Schematic depiction of the action of tryptophan synthase in one functional unit
A horizontal, 2.00 m long, 3.00 kg uniform beam that lies along the east-west di A horizontal, 2.00 m long, 3.00 kg uniform beam that lies along the east-west di
Which of the following is not a unit factor related to a 10.0% aqueous solution Which of the following is not a unit factor related to a 10.0% aqueous solution
Comparison number Grade 1 math Comparison number Grade 1 math
Video: Introduction to Epilepsy

For a complete list of videos, visit our video library