« previous next »

Author Question: John is nearsighted and cannot see things beyond 110 cm from his eyes. What is the focal length of ... (Read 62 times)

misspop

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
John is nearsighted and cannot see things beyond 110 cm from his eyes. What is the focal length of the contact lenses that will enable him to see distant objects clearly?
 
  A) +50 cm
  B) -50 cm
  C) -110 cm
  D) +110 cm
  E) -30 cm

Question 2

By scattering alpha particles from gold, Rutherford showed the atomic nucleus to be very
 
  A) small relative to the atom.
  B) massive relative to the mass of an electron.
  C) both of these
  D) neither of these


Liamb2179

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

John Richardson John Richardson
Madonna and Child with St. Anne and Infant St. John the Baptist. Madonna and Child with St. Anne and Infant St. John the Baptist.
Thomas Hobbes, John Locke, John Rawls Thomas Hobbes, John Locke, John Rawls
An adjustable wrench. Adjustable wrenches are sized by the overall length of the wrench, not by how ... An adjustable wrench. Adjustable wrenches are sized by the overall length of the wrench, not by how ...
Taxonomy of all living things Taxonomy of all living things
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library