Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Light that enters your eyes is focused to form an image on your retina. The optics of your visual system have a total power of about +60 about +20 from the lens in your eye and +40 from the curved shape of your cornea. Surgical procedures to correct vision generally do not work on the lens; they work to reshape the cornea. In the most common procedures, a laser is used to remove tissue from the center of the cornea, reducing its curvature. This change in shape can correct certain kinds of vision problems. Part A For which condition would flattening the cornea be a good solution? For which condition would flattening the cornea be a good solution? Nearsightedness Farsightedness Either nearsightedness or farsightedness Part B Suppose a woman has a far point of 50 . How much should the focusing power of her cornea be changed to correct her vision? Suppose a woman has a far point of 50 . How much should the focusing power of her cornea be changed to correct her vision? -2.0 -1.0 +1.0 +2.0 Part C A cataract is a clouding or opacity that develops in the eye's lens, often in older people. In extreme cases, the lens of the eye may need to be removed. What effect would this have on someone? A cataract is a clouding or opacity that develops in the eye's lens, often in older people. In extreme cases, the lens of the eye may need to be removed. What effect would this have on someone? He would become nearsighted. He would become farsighted. He would become neither nearsighted nor farsighted. Part D The length of your eye decreases slightly as you age, making the lens a bit closer to the retina. Suppose a man had his vision surgically corrected at age 30. At age 70, once his eyes had decreased slightly in length, what condition would he have? The length of your eye decreases slightly as you age, making the lens a bit closer to the retina. Suppose a man had his vision surgically corrected at age 30. At age 70, once his eyes had decreased slightly in length, what condition would he have? Nearsightedness Farsightedness Neither nearsightedness nor farsightedness
A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 1.8 meters long and 0.9 meters high. How far along the rough patch do the blocks go before stopping
A 287kg box is pulled at a constant speed by the little engine. The box moves a distance of 2.4 m across the horizontal surface. (µk=.20), How much energy is transferred by the engine
The proper length of one spaceship is 2.8 times that of another. The two spaceships are travelling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to be the same length.
Two strings are adjusted to vibrate at exactly 188 Hz. Then the tension in one string is increased slightly. What is the new frequency of the string
An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 70.5 kg and a radius R = 0.625..
Atmospheric boundary layer is of typical height of 1 km. Is atmospheric flow in this layer laminar or turbulent? Justify your answer with typical properties such as wind speed and viscosity of air.
An archer wishes to shoot an arrow at a target at eye level a distance of 49.0 m away. what angle should the arrow make with the horizontal as it is being shot
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0â. what is his speed as he leaves the roof
A Carnot engine uses hot and cold reservoirs that have temperatures of 1850 and 845 K, respectively. The input heat for this engine is QH. The work delivered by the engine is used to operate a Carnot heat pump. The pump removes heat from the 845-K re..
question1in an assured region of space there is uniform electric field e and uniform magnetic field b both directed
As an electron moves through a region of space, its speed decreases from 6.40 106 m/s to 2.20 106 m/s. Did the electron move to a higher potential or a lower potential
The drawing shows an equilateral triangle, each side of that has a length of 2.00 cm. Point charges are fixed to each corner, as shown. The +4.0 C charge experiences a net force due to the charges qA and qB. This net force points vertically downwa..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd