This topic contains a solution. Click here to go to the answer

Author Question: The energy of a proton is 1.0 MeV below the top of a 6.8-fm-wide energy barrier. What is the ... (Read 27 times)

bobthebuilder

  • Hero Member
  • *****
  • Posts: 567
The energy of a proton is 1.0 MeV below the top of a 6.8-fm-wide energy barrier.
 
  What is the probability that the proton will tunnel through the barrier? (1 eV = 1.60  10-19 J,
  mproton = 1.67  10-27 kg, h = 1.055  10-34 J  s, h = 6.626  10-34 J  s)
  A) 0.051
  B) 0.048
  C) 0.056
  D) 0.053

Question 2

A 3.10-eV electron is incident on a 0.40-nm barrier that is 5.67 eV high. What is the probability that this electron will tunnel through the barrier?
 
  (1 eV = 1.60  10-19 J,
  mel = 9.11  10-31 kg, h = 1.055  10-34 J  s, h = 6.626  10-34 J  s)
  A) 1.4  10-3
  B) 9.0  10-4
  C) 1.0  10-3
  D) 1.5  10-3
  E) 1.2  10-3



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

JYan

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A




bobthebuilder

  • Member
  • Posts: 567
Reply 2 on: Jul 29, 2018
:D TYSM


rleezy04

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

For a complete list of videos, visit our video library