13. A child of mass m starts from rest and slides without fric-GP tion from a height h along a slide next to a pool (Fig. P8.13).QIC She is launched from a height h/5 into the air over the pool.S We wish to find the maximum height she reaches above thewater in her projectile motion. (a) Is the child–Earthisolated or nonisolated? Why? (b) Is there a nonconservativeforce acting within the system? (c) Define the configurationof the system when the child is at the water level as havingzero gravitational potential energy. Express the total energyof the system when the child is at the top of the waterslide.(d) Express the total energy of the system when the child isat the launching point. (e) Express the total energy of thesystem when the child is at the highest point in her projec-tile motion. (f) From parts (c) and (d), determine her initialsystemImaxIh/5Figure P8.13 speed v;parts (d), (e), and (f), determine her maximum airborneheight ymaxat the launch point in terms of g and h. (g) Fromin terms of h and the launch angle 0. (h) Wouldyour answers be the same if the waterslide were not friction-less? Explain.

Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Answered: 13. A child of mass m starts from rest…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum And Collisions

Section: Chapter Questions

Problem 10WUE

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Problem 4 134. Astronomy About 65 million years ago an aster- oid struck Earth in the area of the Yucatan Peninsula and wiped out the dinosaurs and many other life forms. Judging from the size of the crater and the effects on Earth, the asteroid was about 10 km in diameter (assumed spherical) and probably had a density of 2.0 g/cm³ (typi- cal of asteroids). Its speed was at least 11 km/s. (a) What is the maximum amount of ocean water (originally at 20 °C) that it could have evaporated? Express your answer in kilograms and treat the ocean as though it were fresh- water. (b) If the water were formed into a cube, how high would it be? (See Tables 14-3 and 14-4 as needed.)
13. A child of mass m starts from rest and slides without fric- |GP tion from a height h along a slide next to a pool (Fig. P8.13). QIC She is launched from a height h/5 into the air over the pool. S We wish to find the maximum height she reaches above the water in her projectile motion. (a) Is the child-Earth system isolated or nonisolated? Why? (b) Is there a nonconservative force acting within the system? (c) Define the configuration of the system when the child is at the water level as having zero gravitational potential energy. Express the total energy of the system when the child is at the top of the waterslide. (d) Express the total energy of the system when the child is at the launching point. (e) Express the total energy of the system when the child is at the highest point in her projec- tile motion. (f) From parts (c) and (d), determine her initial Уmax th/5 1 Figure P8.13
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