Physics, 19.09.2020 01:01 neverfnmind
6. A soccer ball rests on the field at the location x= 5.0 m. Two players run along the same straight line toward the ball. Their quations of motion are as follows. X, = -8.2 m + (4.2 m/s) *1 X = -7.2 m + (3.9 m/s) *t
a) Which player is closest to the ball at t= 0
b) What is the location of the players when one of the players passes the other?
Answers: 2
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Give an example in which the electrical energy changes to light energy
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A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)
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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
Physics, 23.06.2019 00:00
If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume
Answers: 2
6. A soccer ball rests on the field at the location x= 5.0 m. Two players run along the same straigh...
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