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
IgorC [24]
1 year ago
14

A very myopic man has a far point of 32.3 cm. what power contact lens (when on the eye) will correct his distant vision?

Physics
1 answer:
Alenkasestr [34]1 year ago
5 0

p=3.0D contact lens is needed to correct his distant vision.

The person is suffering from myopia and hence need a concave lens to correct the defect. The lens should be such that an object at infinity must form its image at the far point.

Hence,f= -32.3cm

= -0.323m

we can define the power of the lens as the reciprocal of its focal length in metre.

The power of lens is the ability to converge and diverge rays of light.

The power of the lens can be obtained as:

p= 1/f

p=1/(-0.323)

p=3.0D

Thus,the power is 3.0D to correct his distant vision.

learn more about power of lens from here: brainly.com/question/17166887

#SPJ4

You might be interested in
A 10 kg computer accelerates at a rate of 5 m/s2. How much force was applied to the computer?​
worty [1.4K]

Answer:

<h2>50 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 10 × 5

We have the final answer as

<h3>50 N</h3>

Hope this helps you

8 0
3 years ago
Read 2 more answers
60 POINTS SO PLEASE HELP ME To add vectors in a straight line ______________ and ______________ are considered positive directio
tankabanditka [31]

Answer:

The answer to your question is

Explanation:

To add vectors in a straight line _<u>right</u>_________ and ___<u>upwards</u>_______ are considered positive directions. __<u>left</u>________ and __<u>downwards</u>____________ are considered negative directions.

I hope it helps you

7 0
3 years ago
A car traveling at 28.0 m/s hits a bridge abutment. A passenger in the car, who has a mass of 49.0 kg, moves forward a distance
BaLLatris [955]

The final velocity of the passenger is zero as he is brought to rest by the inflated bag.

V_f = 0

Apply the equation of motion

V_f^2 = V_i^2 +2as

Replacing with our values,

0 = 28^2+2(a)(0.55)

a = \frac{28^2}{2(0.55)}

a = 712.72m/s^2

Calculate the force using the force equation,

F = ma

F = (49kg)(712.72m/s^2)

F = 34.923kN

Therefore the magnitude of force acts on the passenger's upper torso is 34.923kN

3 0
3 years ago
Consider the numbers 23.68 and 4.12. The sum of these numbers has ____ significant figures, and the product of these numbers has
damaskus [11]

Answer:multiplying will give us 7 significant figures and addition will give us 3 significant figures

Explanation:

After multiplying the two numbers they resulting value will give a value in its 4 decimal places because both given values are in 2 decimal places. The 4 dp is gotten by the addition of the decimal places of both given numbers (2+2) and

The result of its addition will give us a value in its 1dp and 3 significant figures since the addition of 23.68 and 4.12 will give us 27.8

7 0
3 years ago
What is the electromagnetic spectrum?
Pavel [41]
What is the electromagnetic spectrum?
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies. The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one hertz to above 10²⁵ hertz, corresponding to wavelengths from thousands of kilometers down to a fraction of the size of an atomic nucleus.

How the light affect the color we see?
All of the colors we see are a byproduct of spectrum light, as it is reflected off or absorbed into an object. An object that reflects back all of the rays of light will appear white; an object that absorbs all of the rays, black. All of the millions of other colors are produced by a combination of light rays being absorbed and reflected.

8 0
3 years ago
Other questions:
  • A motorist enters a freeway at 45 km/h and accelerates uniformly to 99 km/h. From the odometer in the car, the motorist knows th
    9·1 answer
  • A bicycle wheel rotates uniformly through 2.0 revolutions in 4.0 s. what is the average angular speed of the wheel?
    7·1 answer
  • Two positive charges of 2.8 x 10^-6 are separated by 0.50m. What force exists between the two charges?
    15·1 answer
  • A skydiver of mass m jumps from a hot air balloon and falls a distance d before reaching a terminal velocity of magnitude v . As
    6·1 answer
  • Which kind of electromagnetic waves has a wavelengths greater than 10 cm?
    14·1 answer
  • What is the key difference between mechanical and electromagnetic waves
    8·1 answer
  • A world-class cyclist can average about 15.5 m/s on a bike during a sprint. At this rate, how much distance can he cover in an h
    12·1 answer
  • 3. A football is kicked with a speed of 35 m/s at an angle of 40°.
    13·1 answer
  • A car comes to a sudden stop by applying the brake. It accelerates the uniformly at - 4.1m/s^2 and it slows from 9 m/s to 0 m/s.
    8·1 answer
  • Un acróbata de 60.0 kg está unido a un cordón de bungee con un resorte de 10.0 m de longitud . Salta de un puente que abarca un
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!