Author Question: The radiation source closest to us originates in A) medical treatments. B) all kinds of power ... (Read 22 times)

viki

  • Hero Member
  • *****
  • Posts: 525
The radiation source closest to us originates in
 
  A) medical treatments.
  B) all kinds of power plants.
  C) our own bodies.
  D) none of the above

Question 2

The focal lengths of the objective and eyepiece in a compound microscope are 0.50 cm and 2.00 cm, respectively. An object is placed at a distance of 0.52 cm from the objective.
 
  If the final image seen by the eye is at a distance of 25 cm from it, what is the magnification? A) -125
  B) -100
  C) -225
  D) -325
  E) -425



cuttiesgirl16

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

Answer: C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

For a complete list of videos, visit our video library