Physics, 16.11.2019 05:31 lulustar13
Atoy car is given a quick push so that it moves up an inclined ramp. after it is released, it moves up, reaches its highest point and moves back down again. friction is so small it can be ignored. what net force acts on the car?
1. net constant force up the ramp
2. net decreasing force down the ramp
3. net force of zero
4. net decreasing force up the ramp
5. net increasing force up the ramp
6. net increasing force down the ramp
7. net constant force down the ramp
Answers: 3
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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. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
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Atoy car is given a quick push so that it moves up an inclined ramp. after it is released, it moves...
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