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

Author Question: A neutral 0 (having mass 0.642 u) that is at rest decays into two gamma ray photons. What is the ... (Read 153 times)

Bob-Dole

  • Hero Member
  • *****
  • Posts: 547
A neutral 0 (having mass 0.642 u) that is at rest decays into two gamma ray photons. What is the energy in MeV of each photon? (1 u = 931.5 MeV/c2)
 
  A) 597 MeV B) 299 MeV C) 1190 MeV D) 149 MeV E) 199 MeV

Question 2

A molecule of roughly spherical shape has a mass of 1.80  10-25 kg and a diameter of 0.6 nm.
 
  If the uncertainty in the measured position of the molecule is equal to the molecular diameter, what is the minimum uncertainty in the speed of the molecule? (h = 6.626  10-34 J  s)
  A) 100 m/s B) 10 m/s C) 0.1 m/s D) 1 m/s E) 0.01 m/s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

juiceman1987

  • Sr. Member
  • ****
  • Posts: 316
Answer to Question 1

B

Answer to Question 2

D




Bob-Dole

  • Member
  • Posts: 547
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

For a complete list of videos, visit our video library