Physics, 29.06.2019 23:40 jkw1222p0ttvq
Optometrists use a linear scale of lens power, measured in diopters, to prescribe corrective lenses. lens power is given by the equation p= wherefis the lens focal length in meters. sufferers of myopia, or nearsightedness, have difficulty resolving distant objects because the lenses in their eyes are too strong. if a myopic person has a prescription of-5 diopters, what image do her corrective lenses create for distant objects? o a. an upright, real image about 20 cm in front of her eyes o b. an upright, virtual image about 20 cm in front of her eyes o c. an inverted, real image about 20 cm behind her eyes d. an inverted, virtual image 5 m behind her eyes
Answers: 2
Physics, 22.06.2019 10:30
Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?
Answers: 1
Physics, 22.06.2019 13:30
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)
Answers: 1
Physics, 22.06.2019 15:30
What are the north and south poles of a solenoid change with?
Answers: 1
Physics, 23.06.2019 06:00
How can you improve the percent yield of copper in this lab? check all possible strategies that will you do so. measure reactants precisely. stir to the reaction take place. chill the reactants before combining them. wait patiently until the reaction completes. make sure to recover as much copper as possible.
Answers: 1
Optometrists use a linear scale of lens power, measured in diopters, to prescribe corrective lenses....
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