« previous next »

Author Question: A farsighted person cannot see clearly objects that are closer to her eyes than 60.0 cm. Which ... (Read 60 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jul 29, 2018
A farsighted person cannot see clearly objects that are closer to her eyes than 60.0 cm.
 
  Which one of the following combinations represents the correct focal length and the refractive power of the contact lenses that will enable her to comfortably see the objects at a distance of 25.0 cm from her eyes? A) -42.9 cm, +2.33 diopters
  B) -42.9 cm, -2.33 diopters
  C) +42.9 cm, +2.33 diopters
  D) +42.9 cm, -2.33 diopters
  E) +60 cm, +42.9 diopters

Question 2

Four unequal resistors are connected in a parallel with each other. Which one of the following statements is correct about this combination?
 
  A) The equivalent resistance is less than that of the smallest resistor.
  B) The equivalent resistance is equal to the average of the four resistances.
  C) The equivalent resistance is midway between the largest and smallest resistance.
  D) The equivalent resistance is more than the largest resistance.
  E) None of the other choices is correct.


wshriver

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

A comparison between chromosomes found in a normal human cell and a cancer cell from the same person A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
Differently shaped objects were placed in the nests of robins and catbirds. Differently shaped objects were placed in the nests of robins and catbirds.
Vehicle transmission occurs through contamination of inanimate objects, such as milk. Vehicle transmission occurs through contamination of inanimate objects, such as milk.
Jaundice seen in the eyes and the skin of a patient with hepatitis A. Jaundice seen in the eyes and the skin of a patient with hepatitis A.
Albinos lack pigment in the skin, hair, and eyes. Albinos lack pigment in the skin, hair, and eyes.
Video: Hormonal feedback loop components & Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library