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

Author Question: Fermium-253 has a half-life of 3.00 d. A sample of fermium contains 7.37 107 nuclei. How long will ... (Read 63 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
on: Jul 29, 2018
Fermium-253 has a half-life of 3.00 d. A sample of fermium contains 7.37  107 nuclei. How long will it take for there to be only 3.36  106 fermium nuclei in this sample?
 
  A) 2.75 d
  B) 9.80 d
  C) 13.4 d
  D) 15.7 d
  E) 58.6 d

Question 2

A person's hyperopic (farsighted) eye can focus on objects that are 75 cm away and farther. What power and what focal length contact lenses should be prescribed so this person can see objects 25 cm and farther from the eye?
 
  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

akpaschal

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

2.7 diopters, 38 cm


SAVANNAHHOOPER23

  • Member
  • Posts: 542
Reply 2 on: Jul 29, 2018
:D TYSM

amcvicar

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

The three domains of life The three domains of life
Major Findings of the High Scope Preschool Study High Scope participants showed better academic per Major Findings of the High Scope Preschool Study High Scope participants showed better academic per
Among the health benefits of marriage is a longer life. Among the health benefits of marriage is a longer life.
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
Video: Pneumonia Animation

For a complete list of videos, visit our video library