> ON canvas.wayne.edu + 88 W Discussion worksheet 12 [FWP] *Dashboard G grammarly plagiarism checker - Google Search Worksheet 12 - 2130 - fall-winter.pdf & Download @ Info X Close Page ON canvas.wayne.edu + 88 W Discussion worksheet 12 [FWP] Dashboard G grammarly plagiarism checker - Google Search Worksheet 12 - 2130 - fall-winter.pdf & Download @ Info X Close Page of 5 ZOOM + d. Are there any internal forces that do not have an associated potential energy? If so, which ones? Do these forces do any work? e. The hill is a height of 15 cm, the train has a mass of 1.2 kg, and its initial velocity is 20 cm/s. What is the initial mechanical energy of the train at the top of the hill? f. Is the train's mechanical energy conserved? Explain your reasoning.> ON canvas.wayne.edu + 88 W Discussion worksheet 12 [FWP] Dashboard G grammarly plagiarism checker - Google Search Worksheet 12 - 2130 - fall-winter.pdf & Download @ Info X Close Page of 5 ZOOM + g. What is the train's speed along the flat surface? h. The spring constant is 90 N/cm. Calculate the distance the spring is compressed when the train comes to a stop. The same toy train setup is used, but now there is friction along the horizontal surface (42) with a coefficient of kinetic friction equal to 0.3. The distance Lz is 40 cm. i. How much does friction cause the thermal energy of the system to increase as the train travels along the horizontal surface (42)?> ON canvas.wayne.edu + 88 W Discussion worksheet 12 [FWP] Dashboard G grammarly plagiarism checker - Google Search Worksheet 12 - 2130 - fall-winter.pdf & Download @ Info X Close Page of 5 ZOOM + j. Calculate the new distance the spring is compressed when the train comes to a stop. k. Suppose the coefficient of kinetic friction was equal to 0.5. How much would the thermal energy increase as the train travels along the horizontal surface (Lz)? I. How does your answer to part k compare to the initial mechanical energy of the train at the top of the hill? What does this imply about the motion of the train