A 62.0 kg skier is moving at 6.80 m/s on a frictionless, horizontal, snow-covered plateau when she encounters a rough patch 4.80 m long. The coefficient of kinetic friction between this patch and her skis is 0.300. After crossing the rough patch and returning to the friction-free snow, she skis down an icy, frictionless hill 2.50 m high.(a) How fast is the skier moving when she gets to the bottom of the hill?(b) How much internal energy was generated in crossing the rough patch?
Answers: 1
Another question on Physics
Physics, 22.06.2019 10:10
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?
Answers: 1
Physics, 22.06.2019 18:30
Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction
Answers: 2
Physics, 23.06.2019 01:30
Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class
Answers: 3
You know the right answer?
A 62.0 kg skier is moving at 6.80 m/s on a frictionless, horizontal, snow-covered plateau when she e...
Questions
Mathematics, 20.03.2020 05:36
History, 20.03.2020 05:36
Mathematics, 20.03.2020 05:37
Mathematics, 20.03.2020 05:37
Mathematics, 20.03.2020 05:38
Chemistry, 20.03.2020 05:38
Mathematics, 20.03.2020 05:39
Mathematics, 20.03.2020 05:39
