1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet [91]
3 years ago
8

If a farsighted person has a near point that is 0.600 m from the eye, what is the focal length f2 of the contact lenses that the

person would need to be able to read a book held at 0.350 m from the person's eyes?
Physics
1 answer:
ra1l [238]3 years ago
7 0

Answer:

f = 0.84 m

Explanation:

given,

near point of the distance from eye(d_i) = 0.60 m

distance he can read (d_o)= 0.350 m

focal length of the contact lens = ?

now,

Using lens formula

\dfrac{1}{f} = \dfrac{1}{d_0} + \dfrac{1}{d_i}

\dfrac{1}{f} = \dfrac{1}{0.35} + \dfrac{1}{-0.6}

\dfrac{1}{f} = 1.19

f = \dfrac{1}{1.19}

f = 0.84 m

Hence, The focal length of the contact lens that person needed is equal to

f = 0.84 m

You might be interested in
A cannon fires a 0.652 kg shell with initial
laila [671]
 Mass have no effect for the projectile motion and  u want to know the  height "h"   
first,
        find the vertical and horizontal components of velocity 
 vertical component of velocity = 12 sin 61                  
horizontal component of velocity = 12 cos 61
now for the vertical motion ;               
             S = ut + (1/2) at^2
where
 s = h 
u = initial vertical component of velocity 
t = 0.473 s 
a = gravitational deceleration (-g) = -9.8 m/s^2    
       
         h=[12×sin 610×0.473]+[−9.8×(0.473)2] 

u can simplify this and u will get the answer

h=.5Gt2 

H=1.09m
6 0
3 years ago
Read 2 more answers
11.
Hoochie [10]
C. is correct : ) it is applied when you push and that causes the desk to move
7 0
3 years ago
Read 2 more answers
A student completed a lab report. Which correctly describes the difference between the "Question" and "Hypothesis" sections
galben [10]

Answer:

the second one!

Explanation:

the question is well, the question, a hypothesis is an educated guess on what you think will be the outcome

4 0
3 years ago
Read 2 more answers
What is required for equilibrium to exist
creativ13 [48]
They need to touch each other. Equilibrum, is when two things touch that arent the same heat, once they touch, they are equal in temperature, so they need to touch. hope i helped :D
8 0
3 years ago
Mangrove forests play an important role in _______.
AysviL [449]
D. All of the above

At high tide fish will feed among the mangrove roots - rich fishing ground

The trees trap sediment and soil in the river that would flow out to sea which also helps stop erosion

Wildlife utilise almost every part of the tree, with insects and birds, monkeys and lizards in the branches, shrimps and fish in the roots, and snails and clams in the soil
4 0
2 years ago
Other questions:
  • determine the weight in newtons of a woman whose weight in pounds is 125. also, find her mass in slugs and in kilograms. DEtermi
    8·1 answer
  • A device that makes work easier by changing the size or direction of a force is called what?
    15·1 answer
  • Which type of wave would actually slow down when moving from the air into the ocean?
    12·2 answers
  • " when striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.0 m/s in 0.11 s."
    5·1 answer
  • A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent
    8·1 answer
  • An astronaut has left the International Space Station to test a new space scooter. Her partner measures the following velocity c
    15·1 answer
  • An 80 kg skydiver is falling at terminal velocity. What is the value of air resistance acting on his body? Consider, what are th
    14·1 answer
  • Compare a change in temperature of 1°C to a change of 1°F.
    6·2 answers
  • An angle of refraction is the angle between the refracted ray and the
    8·2 answers
  • The occupants of a vehicle not wearing a seat belt, traveling at a speed of 50 mph and colliding head-on with another vehicle, w
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!