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

Author Question: A hypothetical particle has a mass of 510 MeV/c2. If such a particle at rest decays into two ... (Read 127 times)

meagbuch

  • Hero Member
  • *****
  • Posts: 568
on: Jul 29, 2018
A hypothetical particle has a mass of 510 MeV/c2. If such a particle at rest decays into two gamma-ray photons, what is the wavelength of each photon?
 
  (1 eV = 1.60  10-19 J, c = 3.00  108 m/s, h = 6.626  10-34 J s)

Question 2

A nearsighted person has a far point that is 4.2 m from his eyes. What focal length lenses must he use in his contact lenses to allow him to focus on very distant mountains?
 
  A) -4.8 m B) -5.2 m C) 4.2 m D) -4.2 m E) 5.2 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 29, 2018
Answer to Question 1

4.87  10-15 m

Answer to Question 2

D


meagbuch

  • Hero Member
  • *****
  • Posts: 568
Reply #2 on: Jul 29, 2018
TY


bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Brain mass as a function of body mass in mammals. Brain mass as a function of body mass in mammals.
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
A Hypothetical Explanation of Conduction Aphasia A Hypothetical Explanation of Conduction Aphasia
Air-Mass Source Regions for North America Air-Mass Source Regions for North America
You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ... You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ...
A particle (q = -4.0 mC, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a ... A particle (q = -4.0 mC, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a ...
Video: baroreceptors

For a complete list of videos, visit our video library