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

Author Question: An electron is moving with the speed of 1780 m/s. What is its de Broglie wavelength? (melectron = ... (Read 117 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Jul 29, 2018
An electron is moving with the speed of 1780 m/s.
 
  What is its de Broglie wavelength? (melectron = 9.11  10-31 kg, h = 6.626  10-34 J  s)
  A) 409 nm
  B) 302 nm
  C) 205 nm
  D) 420 nm
  E) 502 nm

Question 2

A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta-minus decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 u? (1 u = 931.5 MeV/c2)
 
  A) 0.0156 MeV
  B) 0.156 MeV
  C) 1.56 MeV
  D) 15.6 MeV
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

juwms

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
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


deesands

  • Member
  • Posts: 514
Reply 2 on: Jul 29, 2018
Gracias!

Viet Thy

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

A comparison of electron and light microscope technologies A comparison of electron and light microscope technologies
Electron-micrograph of human sperm. Electron-micrograph of human sperm.
Insects Under the Electron Microscope Insects Under the Electron Microscope
Insects Under the Electron Microscope Insects Under the Electron Microscope
Scorpions, Spiders and Sharks: Electron-Microscope Images Scorpions, Spiders and Sharks: Electron-Microscope Images
Electron micrograph of the plasma membranes of two cells showing the glycocalyx. Electron micrograph of the plasma membranes of two cells showing the glycocalyx.
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library