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

Author Question: If the momentum of an electron is 1.95 10-27 kg m/s, what is its de Broglie wavelength? (h = 6.626 ... (Read 52 times)

WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
on: Jul 29, 2018
If the momentum of an electron is 1.95  10-27 kg  m/s, what is its de Broglie wavelength? (h = 6.626  10-34 J  s)
 
  A) 340 nm
  B) 210 nm
  C) 170 nm
  D) 420 nm
  E) 520 nm

Question 2

Calculate the current through a 10.0-m long 22 gauge (having radius 0.321 mm) nichrome wire if it is connected to a 12.0-V battery.
 
  The resistivity of nichrome is 100  10-8   m.
  A) 776 mA B) 30.9 A C) 17.5 A D) 388 mA E) 61.8 A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aidanmbrowne

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
Reply #2 on: Jul 29, 2018
Thanks


aidanmbrowne

  • Sr. Member
  • ****
  • Posts: 305
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

An electron micrograph of an E. coli cell An electron micrograph of an E. coli cell
Cyclic electron flow. Cyclic electron flow.
Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Insects Under the Electron Microscope Insects Under the Electron Microscope
Scorpions, Spiders and Sharks: Electron-Microscope Images Scorpions, Spiders and Sharks: Electron-Microscope Images
Human chromosomes as seen at metaphase of mitosis in the scanning electron microscope. The replicate Human chromosomes as seen at metaphase of mitosis in the scanning electron microscope. The replicate
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

For a complete list of videos, visit our video library