Physics, 17.08.2021 03:30, pulliamdylan
The near point of a patients eye is 50.0 cm. (a) What focal length must a corrective lens have to enable the eye to see clearly an object 20.5 cm away? Neglect the eye-lens distance. cm (b) What is the power of this lens? diopters (c) Repeat part (b), taking into account the fact that, for typical eyeglasses, the corrective lens is 2.00 cm in front of the eye. Suppose a lens is placed in a device that determines its power as 3.02 diopters. (a) Find the focal length of the lens. f = cm (b) Find the minimum distance at which a patient will be able to focus on an object if the patient's near point is 30.9 cm. Neglect the eye-lens distance. dmin = cm
Answers: 3
Physics, 22.06.2019 01:30, markmeinberg
Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz
Answers: 3
Physics, 22.06.2019 20:20, SoccerHalo
The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)
Answers: 3
Physics, 22.06.2019 22:00, kobiemajak
Hat is the most commonly cited cause of occupational injuries in the healthcare sector? a. repositioning of patients b. manual pipetting c. slips and trips d. workplace violence
Answers: 3
The near point of a patients eye is 50.0 cm. (a) What focal length must a corrective lens have to en...
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