Atypical person's eye is 2.5 cm in diameter and has a near point (the closest an object can be and still be seen in focus) of 25 cm, and a far point (the farthest an object can be and still be in focus) of infinity. 1) what is the minimum effective focal length of the focusing mechanism (lens plus cornea) of the typical eye? (express your answer to two significant figures.)
Answers: 1
Physics, 22.06.2019 16:40
An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0Β° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?
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Physics, 22.06.2019 21:20
An electron is ejected into a horizontal uniform eβ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the eβ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.
Answers: 3
Physics, 23.06.2019 03:00
Are good conductors of heat also good conductors of electricity? explain your answer.
Answers: 2
Atypical person's eye is 2.5 cm in diameter and has a near point (the closest an object can be and s...
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