Question 16 A 2.9-kg cannonball is fired straight up with an initial velocity of 39 m/s. Taking the initial position of the ball as the reference level (with zero height and zero potential energy), find the potential, kinetic and mechanical energies of the ball at different heights. Neglect the air resistance. Height, in m PE, in J KE, in J E, in J h = h2 = 10 %3D h3 = 20 %3D h4 = 30 How would you describe the energy transformation while the cannon ball is moving up? Select an answer If the same cannonball is fired with the same initial speed but at an angle above the horizontal, does it change the energies you submitted in the previous question? Select an answer Question Help: Message instructor D Post to forum
Question 16 A 2.9-kg cannonball is fired straight up with an initial velocity of 39 m/s. Taking the initial position of the ball as the reference level (with zero height and zero potential energy), find the potential, kinetic and mechanical energies of the ball at different heights. Neglect the air resistance. Height, in m PE, in J KE, in J E, in J h = h2 = 10 %3D h3 = 20 %3D h4 = 30 How would you describe the energy transformation while the cannon ball is moving up? Select an answer If the same cannonball is fired with the same initial speed but at an angle above the horizontal, does it change the energies you submitted in the previous question? Select an answer Question Help: Message instructor D Post to forum
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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