Physics, 17.01.2020 22:31 meganwintergirl
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a robot fires a yellow 7" foam ball at an angle of 35° above the horizontal and a speed of 14m/s.
how long is the ball in the air (ignore air resistance)?
Answers: 1
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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
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Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). what’s the chemical formula of this substance?
Answers: 2
Physics, 23.06.2019 01:00
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge
Answers: 2
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a robot fires a yellow 7" foam ball at an angle of 35° above the horizontal and a spee...
a robot fires a yellow 7" foam ball at an angle of 35° above the horizontal and a spee...
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