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 8 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?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

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

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Insects Under the Electron Microscope Insects Under the Electron Microscope
The electron-carrying coenzymes NAD+ and FAD The electron-carrying coenzymes NAD+ and FAD
Electron Microscope Electron Microscope
A color-enhanced electron micrograph of circular plasmid molecules A color-enhanced electron micrograph of circular plasmid molecules
An electron micrograph of a eukaryotic replicating fork demonstrating An electron micrograph of a eukaryotic replicating fork demonstrating
Scanning electron micrograph of a diatom Scanning electron micrograph of a diatom
Video: Genetic terms Animation

For a complete list of videos, visit our video library