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

Author Question: A collection of 1 million radioactive particles will become fewer than 1 million particles after ... (Read 95 times)

lunatika

  • Hero Member
  • *****
  • Posts: 548
on: Jul 28, 2018
A collection of 1 million radioactive particles will become fewer than 1 million particles after some of the radioactive particles decay.
 
  What will be an ideal response?

Question 2

Simon (Ref. 24) says We have in our ... libraries the technology to feed, clothe, and supply energy to an ever-growing population for the next 7 billion years. Is this a realistic view?
 
  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

aloop

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 28, 2018
Answer to Question 1

This is a tricky question to answer because some radioactive particles decay to
nonradioactive progeny, but others decay into particles that are radioactive themselves. There
will certainly be fewer of the original radioactive particles after some decay, but we cannot
be certain that there will be fewer radioactive particles overall, It is to be hoped that students
grasp this, but gives the teacher the opportunity to reinforce this point.

Answer to Question 2

Simon is an economist. Economics is a human endeavor. The limits that exist to
increase of human population are not human-generated limits but exist independent of
human beings.
technology is based on the fruits of science. It cannot supersede science.
Physical limits, such as insolation, are different from those set by humans. Simon seems to
have ignored this distinction.


lunatika

  • Member
  • Posts: 548
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Amazing NASA Pictures Collection Amazing NASA Pictures Collection
Amazing NASA Pictures Collection Amazing NASA Pictures Collection
The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the
Midstream collection kit. Midstream collection kit.
Blood Collection Tubes: Order of Draw Blood Collection Tubes: Order of Draw
Video: Electrical changes in the heart

For a complete list of videos, visit our video library