A person sees clearly wearing eyeglasses that have a power of −2.92 diopters and sit 2.22 cm in front of the eyes.
If the person wants to switch to contact
lenses, which are placed directly on the eyes,what lens power should be prescribed?
Answer in units of diopter.

  1. 👍 0
  2. 👎 0
  3. 👁 312

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    a car with two passengers travelling at 15m/s collides with a tree. one of the passengers who is not wearing a seat belt strikes the windshield head first and comes to rest in 0.03 s. the area of contact between the head and the

  2. math

    In a certain high school class, consisting of 60 girls and 40 boys , it is observed that 24 girls and 16 boys wear eyeglasses. If a student is picked at rondom from this class, the probability that the student wears eyeglasses is

  3. Physics

    A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 59.82 diopters, and the lens-to-retina distance is 1.686 cm. (a) How far is the blackboard from her eyes? (b) If the writing

  4. statistics

    if 3 couples sit in a row of chairs what is the probability that each couple sits together? what is the probability all the women sit together and the men may or may not be in the group? what is the probability that the women sit

  1. Pre-Algebra

    1)(6.0 × 10 to the 5th power) × (3.0 × 10 to the 4th power) A) 18 × 10 to the 20th power. B) 18 × 10 to the 9th power. C) 1.8 × 10 to the 20th power. D) 1.8 × 10 to the 9th power. 2)(5 × 10 to the -2 power) ÷ (2 × 10 to

  2. spanish Sra McGuin

    I have to give a presentaiton tommorrow in school on what this person is wearing. Gabriella is wearing a green wool hat with puffy balls on it. She is also wearing tall borwn leatehr boots with soft wool inserts they are called

  3. math

    The Fernandez family drove 273 miles in 5.25 hours. How far would they have driven at that rate in 4 hours? A rectangle made of square tiles measures 10 tiles long and 8 tiles wide. What is the width of a similar rectangle whose

  4. Math

    Jerry started doing sit ups every day. The first day he did 15 sit ups. Every day after that he did 2 more sit ups than he had done the previous day. Today Jerry did to 33 sit ups. Write an equation that could be solved to find

  1. math

    Can you check my answers please? Thank you Ben is greeting customers at a music store. Of the first 20 people he sees enter the store, 9 are wearing jackets and 11 are not. What is the experimental probability that the next person


    a). How many ways can a person select three appetizers and two soups if there are six appetizers and five soups on the dinner menu? b). Three married couples have bought tickets for six seats in a row for a movie. - HOw many ways

  3. physics

    A severely myopic patient has a far point of 5.00 cm. By how many diopters should the power of his eye be reduced in laser vision correction to obtain normal distant vision for him? Assume the image at the back of the eye is

  4. Physics

    Two People who weigh the same climb a flight of stairs. The 1st person climbs the stairs in 30s, and the 2nd person climbs them in 40s. Which person does more work? which uses more power. - I would personaly think the 2nd person

You can view more similar questions or ask a new question.