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

Author Question: If originally there were X atoms of radioactive isotope present and now there are only X/16 atoms, ... (Read 271 times)

Pea0909berry

  • Hero Member
  • *****
  • Posts: 573
on: Jul 27, 2018
If originally there were X atoms of radioactive isotope present and now there are only X/16 atoms, how many half-lives have elapsed?
 
  A) 4
  B) 1
  C) 2
  D) 3

Question 2

Describe the differences between secular and diffuse reflection.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

BAOCHAU2803

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

Specular reflection occurs when the reflecting surface is smooth and flat. The reflected rays from parallel incident rays are also parallel. Diffuse reflection occurs when the reflecting surface is rough. The reflected rays from parallel incident rays are not parallel because of the irregular nature of the surface.


Pea0909berry

  • Hero Member
  • *****
  • Posts: 573
Reply #2 on: Jul 27, 2018
Thanks


BAOCHAU2803

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

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

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Geometry of bonds when carbon is covalently linked to three or four other atoms Geometry of bonds when carbon is covalently linked to three or four other atoms
Habitat reconstruction is possible based on the kinds of plants present at past sites. Habitat reconstruction is possible based on the kinds of plants present at past sites.
The inverse-square law and its effects. Doubling your distance away from a radioactive material ... The inverse-square law and its effects. Doubling your distance away from a radioactive material ...
What is an atoms? What is an atoms?
Chemical bonds join atoms into molecules Chemical bonds join atoms into molecules
How many gold atoms are contained in 3.75 moles of gold? How many gold atoms are contained in 3.75 moles of gold?
Video: Facilitated Diffusion - Glucose transport

For a complete list of videos, visit our video library