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

Author Question: Assume you are a particle in a box called the universe. Estimate your minimum kinetic energy. ... (Read 72 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
on: Jul 27, 2018
Assume you are a particle in a box called the universe. Estimate your minimum kinetic energy. (Assume the edge of the box is at a distance of 20. Giga Light Years.)
 
  What will be an ideal response?

Question 2

A diffraction grating has 6000. lines per centimeter ruled on it.
 
  What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550. nm?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dudman123

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 27, 2018
Answer to Question 1

6  10-123Joules = 3  10-104 eV from /2 = 2R (R = 20. GLY) and K = p2/(2m) = h2/2m2)

Answer to Question 2

40.5


mydiamond

  • Member
  • Posts: 804
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

patma1981

  • Member
  • Posts: 292
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

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.

Energy-flow diagram for a Georgia salt marsh. Energy-flow diagram for a Georgia salt marsh.
Energy budget for a temperate deciduous forest (data from Gosz et al. 1978). Energy budget for a temperate deciduous forest (data from Gosz et al. 1978).
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
Cutaway Drawing of Tholos, The So-called Treasury of Atreus Cutaway Drawing of Tholos, The So-called Treasury of Atreus
Renewable Energy Sources Globally Renewable Energy Sources Globally
The Sun and the radiant energy The Sun and the radiant energy
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library