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

Author Question: A neutral 0 (having mass 0.642 u) that is at rest decays into two gamma ray photons. What is the ... (Read 143 times)

Bob-Dole

  • Hero Member
  • *****
  • Posts: 547
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
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

cdmart10

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Although Tasmanian devils are nocturnal, they like to rest in the sun. Scarring from fighting is vis Although Tasmanian devils are nocturnal, they like to rest in the sun. Scarring from fighting is vis
Land mass looks like a synapse Land mass looks like a synapse
Gamma-Ray Bursts Gamma-Ray Bursts
Mass Wasting Forms Mass Wasting Forms
Gravitational Force Due to a Distribution of Mass Problem 1 Gravitational Force Due to a Distribution of Mass Problem 1
Mass spectrometry for identifying an unknown protein isolated from a 2D gel Mass spectrometry for identifying an unknown protein isolated from a 2D gel
Video: Sperm Formation

For a complete list of videos, visit our video library