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

Author Question: A certain radioactive isotope placed near a Geiger counter registers 160 counts per minute. Eight ... (Read 29 times)

rl

  • Hero Member
  • *****
  • Posts: 579
on: Jul 29, 2018
A certain radioactive isotope placed near a Geiger counter registers 160 counts per minute. Eight hours later, the counter registers 10 counts per minute. What is the half-life of the isotope?
 
  A) 8 hours
  B) 6 hours
  C) 4 hours
  D) 2 hours
  E) none of the above

Question 2

An emf is induced in a wire by moving the wire near a magnet.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meow1234

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: D

Answer to Question 2

TRUE


rl

  • Member
  • Posts: 579
Reply 2 on: Jul 29, 2018
:D TYSM

ultraflyy23

  • Member
  • Posts: 312
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

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?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

The Calvin Cycle Was Determined by Isotope Labelling Methods The Calvin Cycle Was Determined by Isotope Labelling Methods
Voltmeter showing the battery voltage when the headlights were on (engine off) for one minute. Voltmeter showing the battery voltage when the headlights were on (engine off) for one minute.
A PET scan, a medical use for radioactive isotopes. A PET scan, a medical use for radioactive isotopes.
Atmospheric currents carried radioactive fallout across much of Northern Hemisphere Atmospheric currents carried radioactive fallout across much of Northern Hemisphere
Types of Radioactive Decay Types of Radioactive Decay
Using atomic notation, indicate the isotope having 30 p+, 35 n0, and 30 e-. Using atomic notation, indicate the isotope having 30 p+, 35 n0, and 30 e-.
Video: What is an ecosystem?

For a complete list of videos, visit our video library