Physics, 01.07.2021 21:30 cbrpilot1151
You have two golf balls that differ only in their surfaces. One has dimples, while the other is smooth. If you were to drop the balls simultaneously from the top of the Eiffel-Tower, which will hit the ground first?
a. Dimpled ball.
b. Smooth ball.
c. Both hit at the same time.
d. Whichever ball is heavier.
Answers: 3
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Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90
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People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)
Answers: 3
You have two golf balls that differ only in their surfaces. One has dimples, while the other is smoo...
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