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

Author Question: Calculate the half-value thickness (in mm) of lead if it reduces the intensity of a beam of x-rays ... (Read 154 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Jul 28, 2018
Calculate the half-value thickness (in mm) of lead if it reduces the intensity of a beam of x-rays whose wavelength is 10 pm by a factor of two. (Assume the linear absorption coefficient of lead is 43 cm1 for x-rays of wavelength 10  1012 m.)
 a. 0.24
  b. 0.20
  c. 0.12
  d. 0.16
  e. 0.18

Question 2

The most southern latitude from which an observer on Earth can see the North Star (Polaris) is
 a. 66.5S.
  b. 23.5S.
  c. 0.
  d. 23.5N.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

briezy

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

c


sheilaspns

  • Hero Member
  • *****
  • Posts: 567
Reply #2 on: Jul 28, 2018
TY


briezy

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

The form and orientation of desert plants reduces heat gain from the environment and facilitates coo The form and orientation of desert plants reduces heat gain from the environment and facilitates coo
How Axis Tilt Affects the Intensity of Solar Radiation How Axis Tilt Affects the Intensity of Solar Radiation
Computed tomography (CT) uses X-rays to create a CT scan of the brain. Computed tomography (CT) uses X-rays to create a CT scan of the brain.
How to solve a half life problem involving exponential models (Question 2) How to solve a half life problem involving exponential models (Question 2)
How to calculate simple interest (Part 5; r = I/Pt) How to calculate simple interest (Part 5; r = I/Pt)
How to calculate present value using the compound interest formula (Question 2) How to calculate present value using the compound interest formula (Question 2)
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library