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Rasek [7]
3 years ago
8

Myopia is a condition of the eye where the crystalline lens focuses the light rays to a position between the lens and the retina

. To correct for this condition, a thin lens is placed in front of the eye that will help to focus light on the retina. The type of lens required is:
Physics
1 answer:
aliya0001 [1]3 years ago
4 0

Answer: concave lens

Explanation:

Myopia is a condition of the eye where someone can only see near distant object clearly but not far distant object.

Myopia is corrected using concave lens (diverging) in order to diverge the rays entering the eye thereby allowing the rays to be focused properly on the retina.

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A man stands on a platform that is rotating at 3.8 rpm; his arms are outstretched and he holds a brick in each hand. The rotatio
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Answer:

a) 5.197rev/s

b) Kf/Ki =2.28

Explanation:

a) Angular momentum of the system L = Iw

ButLi=Lf

Kiwi =Ifwf

wf = (Ii/If)will = (4.65/3.4)×3.8=5.197rev/s

b)Kinetic energy KE= 0.5Iw^2

Ki = 0.5Iiwi^2

Kf=0.5Ifwf^2

Kf/Ki = Ifwf/Iiwi

Kf/Ki = (4.65/3.4))(5.197/3.8)

Kf/Ki = 1.22(1.368)^2

Kf/Ki = 2.28

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2 years ago
14. A rocket is shot up into the air and then comes back down and hits the ground 9.2 second later.
sineoko [7]

Answer:

105.8 m

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Explanation:

From the time the rocket is launched to the time it reaches its maximum height:

v = 0 m/s

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t = 9.2 s / 2 = 4.6 s

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Δy = vt − ½ at²

Δy = (0 m/s) (4.6 s) − ½ (-10 m/s²) (4.6 s)²

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v₀ = 46 m/s

3 0
3 years ago
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